Prevent sync data loss from incomplete tracked files (#725)

Co-authored-by: Zhizhen He <hezhizhen.yi@gmail.com>

.github/dependabot.yml

@@ -0,0 +1,55 @@
+version: 2
+
+updates:
+  - package-ecosystem: npm
+    directory: /
+    schedule:
+      interval: weekly
+      day: monday
+    open-pull-requests-limit: 5
+    ignore:
+      # Build tooling majors are opted into, not queued. These never reach a
+      # user, so the cost of being a release behind is low and the cost of a
+      # surprise is a broken build. Note this also suppresses security PRs for
+      # these, so Dependabot alerts are the backstop.
+      - dependency-name: typescript
+        update-types: ["version-update:semver-major"]
+      - dependency-name: vitest
+        update-types: ["version-update:semver-major"]
+      - dependency-name: "@types/*"
+        update-types: ["version-update:semver-major"]
+      - dependency-name: "vite-plugin-*"
+        update-types: ["version-update:semver-major"]
+      # 0.8 dropped stateExtensions and updateSchema from the package root and
+      # exposes no subpath to reach them, which GrpcEditor needs. Unpin once
+      # that editor moves to the jsonSchema helper.
+      - dependency-name: codemirror-json-schema
+    groups:
+      npm-production:
+        dependency-type: production
+        update-types:
+          - minor
+          - patch
+      npm-development:
+        dependency-type: development
+        update-types:
+          - minor
+          - patch
+
+  - package-ecosystem: cargo
+    directory: /
+    schedule:
+      interval: weekly
+      day: monday
+    open-pull-requests-limit: 5
+    ignore:
+      # Held at 11.10.0 to pin what rolldown_resolver ("^11") resolves to; it
+      # does not build against 11.11. See crates-cli/yaak-cli/Cargo.toml.
+      - dependency-name: oxc_resolver
+    groups:
+      cargo:
+        patterns:
+          - "*"
+        update-types:
+          - minor
+          - patch

.github/scripts/preserve-release-artifacts.mjs

@@ -0,0 +1,79 @@
+// Retain only distributable bundle files, never the target tree or signing material.
+import { createHash } from "node:crypto";
+import {
+  copyFileSync,
+  createReadStream,
+  existsSync,
+  mkdirSync,
+  readdirSync,
+  writeFileSync,
+} from "node:fs";
+import { join, relative } from "node:path";
+
+const env = process.env;
+const bundle = join("target", env.RELEASE_TARGET || "", "release", "bundle");
+const destination = join(env.RUNNER_TEMP, "yaak-release-artifacts");
+const extensions =
+  /\.(dmg|deb|rpm|AppImage|exe|msi|app\.tar\.gz|AppImage\.tar\.gz|nsis\.zip|msi\.zip)(\.sig)?$/;
+const files = [];
+
+function snapshot(directory) {
+  if (!existsSync(directory)) return;
+  for (const entry of readdirSync(directory, { withFileTypes: true })) {
+    const source = join(directory, entry.name);
+    // Only descend through the bundler's immediate output folders. This excludes
+    // .app trees and the extracted CEF deb contents (which contain executables).
+    if (entry.isDirectory() && directory === bundle) {
+      snapshot(source);
+    } else if (
+      entry.isFile() &&
+      (extensions.test(entry.name) || /^yaak-cef_.*_linux_.*\.tar\.gz$/.test(entry.name))
+    ) {
+      // Match tauri-action's default macOS updater asset naming exactly.
+      const arch = env.RELEASE_ARCH === "arm64" ? "aarch64" : "x64";
+      const assetName = entry.name.replace(/\.app\.tar\.gz(\.sig)?$/, `_${arch}.app.tar.gz$1`);
+      mkdirSync(destination, { recursive: true });
+      const retained = join(destination, assetName);
+      // The second snapshot must not overwrite the original user installer/signature.
+      if (!existsSync(retained)) copyFileSync(source, retained);
+      files.push({ source: relative(".", source), assetName });
+    }
+  }
+}
+
+snapshot(bundle);
+if (existsSync(destination)) {
+  const assets = readdirSync(destination)
+    .filter((name) => name !== "provenance.json")
+    .sort();
+  const checksums = [];
+  for (const assetName of assets) {
+    const hash = createHash("sha256");
+    for await (const chunk of createReadStream(join(destination, assetName))) hash.update(chunk);
+    checksums.push({ assetName, sha256: hash.digest("hex") });
+  }
+  writeFileSync(
+    join(destination, "provenance.json"),
+    JSON.stringify(
+      {
+        repository: env.GITHUB_REPOSITORY,
+        tag: env.GITHUB_REF_NAME,
+        sha: env.GITHUB_SHA,
+        runId: env.GITHUB_RUN_ID,
+        runAttempt: env.GITHUB_RUN_ATTEMPT,
+        workflowRef: env.GITHUB_WORKFLOW_REF,
+        workflowSha: env.GITHUB_WORKFLOW_SHA,
+        tauriAction: "tauri-apps/tauri-action@v0",
+        platform: env.RELEASE_PLATFORM,
+        runtime: env.RELEASE_RUNTIME,
+        arch: env.RELEASE_ARCH,
+        target: env.RELEASE_TARGET,
+        args: env.RELEASE_ARGS,
+        assets: checksums,
+      },
+      null,
+      2,
+    ) + "\n",
+  );
+}
+console.log(`Found ${files.length} distributable bundle files in ${bundle}`);

.github/workflows/release-app.yml

@@ -70,7 +70,7 @@ jobs:
             runtime: "wry"
             targets: "aarch64-pc-windows-msvc"
     runs-on: ${{ matrix.platform }}
-    timeout-minutes: 60
+    timeout-minutes: 360
     steps:
       - name: Checkout yaakapp/app
         uses: actions/checkout@v4
@@ -172,7 +172,8 @@ jobs:
           codesign --force --options runtime --entitlements crates-tauri/yaak-app-client/macos/entitlements.yaakprotoc.plist --sign "$APPLE_SIGNING_IDENTITY" crates-tauri/yaak-app-client/vendored/protoc/yaakprotoc || true
           codesign --force --options runtime --entitlements crates-tauri/yaak-app-client/macos/entitlements.yaaknode.plist --sign "$APPLE_SIGNING_IDENTITY" crates-tauri/yaak-app-client/vendored/node/yaaknode || true
 
-      - uses: tauri-apps/tauri-action@v0
+      - name: Build and upload Tauri bundles
+        uses: tauri-apps/tauri-action@v0
         env:
           YAAK_TARGET_ARCH: ${{ matrix.yaak_arch }}
 
@@ -194,6 +195,8 @@ jobs:
           AZURE_CLIENT_SECRET: ${{ matrix.os == 'windows' && secrets.AZURE_CLIENT_SECRET }}
           AZURE_TENANT_ID: ${{ matrix.os == 'windows' && secrets.AZURE_TENANT_ID }}
         with:
+          # Also retries builds; upload retries alone cannot clean up starter assets.
+          retryAttempts: 3
           tauriScript: "node ../../node_modules/@tauri-apps/cli/tauri.js"
           tagName: "v__VERSION__"
           releaseName: "Release __VERSION__"
@@ -203,6 +206,17 @@ jobs:
           projectPath: ./crates-tauri/yaak-app-client
           args: "${{ matrix.args }}"
 
+      # Snapshot before the per-machine build overwrites the regular NSIS bundle/signature.
+      - name: Snapshot Tauri bundles
+        if: ${{ !cancelled() }}
+        run: node .github/scripts/preserve-release-artifacts.mjs
+        env:
+          RELEASE_TARGET: ${{ matrix.targets }}
+          RELEASE_PLATFORM: ${{ matrix.platform }}
+          RELEASE_RUNTIME: ${{ matrix.runtime }}
+          RELEASE_ARCH: ${{ matrix.yaak_arch }}
+          RELEASE_ARGS: ${{ matrix.args }}
+
       - name: Build and upload CEF tarball from deb (Linux only)
         if: matrix.os == 'ubuntu' && matrix.runtime == 'cef'
         env:
@@ -217,7 +231,13 @@ jobs:
           mkdir -p "$extract_dir"
           dpkg-deb -x "$deb" "$extract_dir"
           tar -C "$extract_dir" -czf "$tarball" .
-          gh release upload "${{ github.ref_name }}" "$tarball" --clobber
+          for attempt in 1 2 3 4; do
+            if gh release upload "$GITHUB_REF_NAME" "$tarball" --clobber; then
+              break
+            fi
+            if [ "$attempt" -eq 4 ]; then exit 1; fi
+            sleep 10
+          done
 
       # Build a per-machine NSIS installer for enterprise deployment (PDQ, SCCM, Intune)
       - name: Build and upload machine-wide installer (Windows only)
@@ -235,6 +255,7 @@ jobs:
           Get-ChildItem -Recurse -Path target -File -Filter "*.exe.sig" | Remove-Item -Force
           Push-Location crates-tauri/yaak-app-client
           npx tauri bundle ${{ matrix.args }} --bundles nsis --config '{"bundle":{"createUpdaterArtifacts":true,"windows":{"nsis":{"installMode":"perMachine"}}}}'
+          if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
           Pop-Location
           $setup = Get-ChildItem -Recurse -Path target -Filter "*setup*.exe" | Select-Object -First 1
           $setupSig = "$($setup.FullName).sig"
@@ -242,5 +263,30 @@ jobs:
           $destSig = "$dest.sig"
           Copy-Item $setup.FullName $dest
           Copy-Item $setupSig $destSig
-          gh release upload "${{ github.ref_name }}" "$dest" --clobber
-          gh release upload "${{ github.ref_name }}" "$destSig" --clobber
+          foreach ($asset in @($dest, $destSig)) {
+            for ($attempt = 1; $attempt -le 4; $attempt++) {
+              gh release upload "$env:GITHUB_REF_NAME" "$asset" --clobber
+              if ($LASTEXITCODE -eq 0) { break }
+              if ($attempt -eq 4) { exit $LASTEXITCODE }
+              Start-Sleep -Seconds 10
+            }
+          }
+
+      - name: Snapshot additional release bundles
+        if: ${{ !cancelled() }}
+        run: node .github/scripts/preserve-release-artifacts.mjs
+        env:
+          RELEASE_TARGET: ${{ matrix.targets }}
+          RELEASE_PLATFORM: ${{ matrix.platform }}
+          RELEASE_RUNTIME: ${{ matrix.runtime }}
+          RELEASE_ARCH: ${{ matrix.yaak_arch }}
+          RELEASE_ARGS: ${{ matrix.args }}
+
+      - name: Retain release bundles for recovery
+        if: ${{ !cancelled() }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: release-${{ github.ref_name }}-${{ matrix.platform }}-${{ matrix.runtime }}-${{ matrix.yaak_arch }}-${{ github.run_id }}-attempt-${{ github.run_attempt }}
+          path: ${{ runner.temp }}/yaak-release-artifacts/
+          retention-days: 7
+          if-no-files-found: warn

.oxfmtignore

@@ -1,3 +0,0 @@
-**/bindings/**
-**/routeTree.gen.ts
-crates/yaak-templates/pkg/**

.oxfmtrc.json

@@ -3,6 +3,7 @@
   "ignorePatterns": [
     "**/bindings/**",
     "crates/yaak-templates/pkg/**",
-    "apps/yaak-client/routeTree.gen.ts"
+    "apps/yaak-client/routeTree.gen.ts",
+    "plugins/importer-bruno/tests/fixtures/upstream/**"
   ]
 }

Cargo.toml

@@ -29,6 +29,7 @@ members = [
   "crates-proxy/yaak-proxy-lib",
   # Server crates (the browser tier's hosted send executor)
   "crates-server/yaak-web",
+  "crates-server/yaak-playground",
   # CLI crates
   "crates-cli/yaak-cli",
   # Tauri-specific crates
@@ -47,7 +48,14 @@ chrono = "0.4.42"
 hex = "0.4.3"
 keyring = "3.6.3"
 log = "0.4.29"
-reqwest = "0.12.20"
+reqwest = { version = "0.13.5", default-features = false, features = [
+  # reqwest 0.13 switched `default-tls` from native-tls to rustls; keep the
+  # rest of the old default set and stay on native-tls.
+  "charset",
+  "http2",
+  "system-proxy",
+  "native-tls",
+] }
 rustls = { version = "0.23.34", default-features = false }
 rustls-platform-verifier = "0.6.2"
 schemars = { version = "0.8.22", features = ["chrono"] }

Dockerfile.playground

@@ -0,0 +1,15 @@
+# syntax=docker/dockerfile:1
+# The playground API behind yaak.run. See crates-server/yaak-playground/README.md.
+
+FROM rust:1-bookworm AS build
+WORKDIR /app
+COPY . .
+RUN cargo build --release -p yaak-playground
+
+FROM debian:bookworm-slim
+COPY --from=build /app/target/release/yaak-playground /usr/local/bin/yaak-playground
+ENV HOST=0.0.0.0
+ENV PORT=8080
+EXPOSE 8080
+USER nobody
+CMD ["yaak-playground"]

Dockerfile.web

@@ -38,7 +38,10 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     ca-certificates libssl3 && rm -rf /var/lib/apt/lists/*
 COPY --from=server /app/target/release/yaak-web /usr/local/bin/yaak-web
 COPY --from=web /app/dist/apps/yaak-client /srv
-ENV YAAK_WEB_BIND=0.0.0.0:8080
+# 0.0.0.0 so the port is reachable from outside the container. PORT is the variable a
+# platform-as-a-service assigns, so a deploy that sets it needs nothing else changed.
+ENV HOST=0.0.0.0
+ENV PORT=8080
 EXPOSE 8080
 USER nobody
 # Overriding the command (dropping --serve) leaves the stateless send executor:

README.md

@@ -17,7 +17,7 @@
 <br>
 
 <p align="center">
-  <!-- sponsors-premium --><a href="https://github.com/MVST-Solutions"><img src="https:&#x2F;&#x2F;github.com&#x2F;MVST-Solutions.png" width="80px" alt="User avatar: MVST-Solutions" /></a>&nbsp;&nbsp;<a href="https://github.com/dharsanb"><img src="https:&#x2F;&#x2F;github.com&#x2F;dharsanb.png" width="80px" alt="User avatar: dharsanb" /></a>&nbsp;&nbsp;<a href="https://github.com/railwayapp"><img src="https:&#x2F;&#x2F;github.com&#x2F;railwayapp.png" width="80px" alt="User avatar: railwayapp" /></a>&nbsp;&nbsp;<a href="https://github.com/caseyamcl"><img src="https:&#x2F;&#x2F;github.com&#x2F;caseyamcl.png" width="80px" alt="User avatar: caseyamcl" /></a>&nbsp;&nbsp;<a href="https://github.com/bytebase"><img src="https:&#x2F;&#x2F;github.com&#x2F;bytebase.png" width="80px" alt="User avatar: bytebase" /></a>&nbsp;&nbsp;<a href="https://github.com/"><img src="https:&#x2F;&#x2F;raw.githubusercontent.com&#x2F;JamesIves&#x2F;github-sponsors-readme-action&#x2F;dev&#x2F;.github&#x2F;assets&#x2F;placeholder.png" width="80px" alt="User avatar: " /></a>&nbsp;&nbsp;<!-- sponsors-premium -->
+  <!-- sponsors-premium --><a href="https://github.com/MVST-Solutions"><img src="https:&#x2F;&#x2F;github.com&#x2F;MVST-Solutions.png" width="80px" alt="User avatar: MVST-Solutions" /></a>&nbsp;&nbsp;<a href="https://github.com/dharsanb"><img src="https:&#x2F;&#x2F;github.com&#x2F;dharsanb.png" width="80px" alt="User avatar: dharsanb" /></a>&nbsp;&nbsp;<a href="https://github.com/railwayapp"><img src="https:&#x2F;&#x2F;github.com&#x2F;railwayapp.png" width="80px" alt="User avatar: railwayapp" /></a>&nbsp;&nbsp;<a href="https://github.com/caseyamcl"><img src="https:&#x2F;&#x2F;github.com&#x2F;caseyamcl.png" width="80px" alt="User avatar: caseyamcl" /></a>&nbsp;&nbsp;<a href="https://github.com/bytebase"><img src="https:&#x2F;&#x2F;github.com&#x2F;bytebase.png" width="80px" alt="User avatar: bytebase" /></a>&nbsp;&nbsp;<a href="https://github.com/rauchg"><img src="https:&#x2F;&#x2F;github.com&#x2F;rauchg.png" width="80px" alt="User avatar: rauchg" /></a>&nbsp;&nbsp;<a href="https://github.com/"><img src="https:&#x2F;&#x2F;raw.githubusercontent.com&#x2F;JamesIves&#x2F;github-sponsors-readme-action&#x2F;dev&#x2F;.github&#x2F;assets&#x2F;placeholder.png" width="80px" alt="User avatar: " /></a>&nbsp;&nbsp;<!-- sponsors-premium -->
 </p>
 <p align="center">
   <!-- sponsors-base --><a href="https://github.com/seanwash"><img src="https:&#x2F;&#x2F;github.com&#x2F;seanwash.png" width="50px" alt="User avatar: seanwash" /></a>&nbsp;&nbsp;<a href="https://github.com/jerath"><img src="https:&#x2F;&#x2F;github.com&#x2F;jerath.png" width="50px" alt="User avatar: jerath" /></a>&nbsp;&nbsp;<a href="https://github.com/itsa-sh"><img src="https:&#x2F;&#x2F;github.com&#x2F;itsa-sh.png" width="50px" alt="User avatar: itsa-sh" /></a>&nbsp;&nbsp;<a href="https://github.com/dmmulroy"><img src="https:&#x2F;&#x2F;github.com&#x2F;dmmulroy.png" width="50px" alt="User avatar: dmmulroy" /></a>&nbsp;&nbsp;<a href="https://github.com/timcole"><img src="https:&#x2F;&#x2F;github.com&#x2F;timcole.png" width="50px" alt="User avatar: timcole" /></a>&nbsp;&nbsp;<a href="https://github.com/VLZH"><img src="https:&#x2F;&#x2F;github.com&#x2F;VLZH.png" width="50px" alt="User avatar: VLZH" /></a>&nbsp;&nbsp;<a href="https://github.com/terasaka2k"><img src="https:&#x2F;&#x2F;github.com&#x2F;terasaka2k.png" width="50px" alt="User avatar: terasaka2k" /></a>&nbsp;&nbsp;<a href="https://github.com/andriyor"><img src="https:&#x2F;&#x2F;github.com&#x2F;andriyor.png" width="50px" alt="User avatar: andriyor" /></a>&nbsp;&nbsp;<a href="https://github.com/majudhu"><img src="https:&#x2F;&#x2F;github.com&#x2F;majudhu.png" width="50px" alt="User avatar: majudhu" /></a>&nbsp;&nbsp;<a href="https://github.com/axelrindle"><img src="https:&#x2F;&#x2F;github.com&#x2F;axelrindle.png" width="50px" alt="User avatar: axelrindle" /></a>&nbsp;&nbsp;<a href="https://github.com/jirizverina"><img src="https:&#x2F;&#x2F;github.com&#x2F;jirizverina.png" width="50px" alt="User avatar: jirizverina" /></a>&nbsp;&nbsp;<a href="https://github.com/chip-well"><img src="https:&#x2F;&#x2F;github.com&#x2F;chip-well.png" width="50px" alt="User avatar: chip-well" /></a>&nbsp;&nbsp;<a href="https://github.com/GRAYAH"><img src="https:&#x2F;&#x2F;github.com&#x2F;GRAYAH.png" width="50px" alt="User avatar: GRAYAH" /></a>&nbsp;&nbsp;<a href="https://github.com/flashblaze"><img src="https:&#x2F;&#x2F;github.com&#x2F;flashblaze.png" width="50px" alt="User avatar: flashblaze" /></a>&nbsp;&nbsp;<a href="https://github.com/Frostist"><img src="https:&#x2F;&#x2F;github.com&#x2F;Frostist.png" width="50px" alt="User avatar: Frostist" /></a>&nbsp;&nbsp;<a href="https://github.com/PurplProto"><img src="https:&#x2F;&#x2F;github.com&#x2F;PurplProto.png" width="50px" alt="User avatar: PurplProto" /></a>&nbsp;&nbsp;<!-- sponsors-base -->
@@ -25,6 +25,10 @@
 
 ![Yaak API Client](https://yaak.app/static/screenshot.png)
 
+## Install
+
+Download Yaak for macOS, Windows, or Linux from [yaak.app/download](https://yaak.app/download). Package managers and other install methods are in the [installation docs](https://yaak.app/docs/getting-started/installation).
+
 ## Features
 
 Yaak is an offline-first API client designed to stay out of your way while giving you everything you need when you need it.
@@ -68,3 +72,9 @@ Built with [Tauri](https://tauri.app), Rust, and React, it’s fast, lightweight
 - [Yaak vs Postman](https://yaak.app/alternatives/postman)
 - [Yaak vs Bruno](https://yaak.app/alternatives/bruno)
 - [Yaak vs Insomnia](https://yaak.app/alternatives/insomnia)
+
+## License
+
+The source is [MIT licensed](LICENSE) and can be built and run for free, for both personal and commercial use.
+
+The prebuilt binaries follow Yaak's [pricing terms](https://yaak.app/pricing): free for personal use, license required for commercial use.

apps/yaak-client/commands/createEnvironment.tsx

@@ -6,11 +6,12 @@ import { showDialog } from "../lib/dialog";
 import { jotaiStore } from "../lib/jotai";
 import { setWorkspaceSearchParams } from "../lib/setWorkspaceSearchParams";
 
-export const createSubEnvironmentAndActivate = createFastMutation<
-  string | null,
-  unknown,
-  Environment | null
->({
+/**
+ * Prompt for and create a sub-environment of the given base environment, resolving with the new
+ * environment's ID (or null if the dialog was dismissed). This does not change the workspace's
+ * active environment.
+ */
+export const createSubEnvironment = createFastMutation<string | null, unknown, Environment | null>({
   mutationKey: ["create_environment"],
   mutationFn: async (baseEnvironment) => {
     if (baseEnvironment == null) {
@@ -41,6 +42,17 @@ export const createSubEnvironmentAndActivate = createFastMutation<
       });
     });
   },
+});
+
+/** Same as {@link createSubEnvironment}, but also makes the new environment the active one. */
+export const createSubEnvironmentAndActivate = createFastMutation<
+  string | null,
+  unknown,
+  Environment | null
+>({
+  mutationKey: ["create_environment_and_activate"],
+  mutationFn: (baseEnvironment) => createSubEnvironment.mutateAsync(baseEnvironment),
+  disableToastError: true, // Already shown by createSubEnvironment
   onSuccess: async (environmentId) => {
     if (environmentId == null) {
       return; // Was not created

apps/yaak-client/components/CloneGitRepositoryDialog.tsx

@@ -1,12 +1,12 @@
 import { gitClone } from "@yaakapp-internal/git";
 import { Banner, VStack } from "@yaakapp-internal/ui";
-import { useState } from "react";
+import { useId, useState } from "react";
 import { openWorkspaceFromSyncDir } from "../commands/openWorkspaceFromSyncDir";
 import { appInfo } from "../lib/appInfo";
 import { CommercialUseBanner } from "./CommercialUseBanner";
 import { showErrorToast } from "../lib/toast";
-import { Button } from "./core/Button";
 import { Checkbox } from "./core/Checkbox";
+import { DialogFooter } from "./core/Dialog";
 import { IconButton } from "./core/IconButton";
 import { PlainInput } from "./core/PlainInput";
 import { promptCredentials } from "./git/credentials";
@@ -29,6 +29,7 @@ export function CloneGitRepositoryDialog({ hide }: Props) {
   const [subdirectory, setSubdirectory] = useState<string>("");
   const [isCloning, setIsCloning] = useState(false);
   const [error, setError] = useState<string | null>(null);
+  const formId = useId();
 
   const repoName = extractRepoName(url);
   const sep = getPathSeparator(baseDirectory);
@@ -83,7 +84,7 @@ export function CloneGitRepositoryDialog({ hide }: Props) {
   };
 
   return (
-    <VStack as="form" space={3} alignItems="start" className="pb-3" onSubmit={handleClone}>
+    <VStack as="form" id={formId} space={3} alignItems="start" onSubmit={handleClone}>
       {error && (
         <Banner color="danger" className="w-full">
           {error}
@@ -132,15 +133,17 @@ export function CloneGitRepositoryDialog({ hide }: Props) {
         />
       )}
 
-      <Button
-        type="submit"
-        color="primary"
-        className="w-full mt-3"
-        disabled={!url || !directory || isCloning}
-        isLoading={isCloning}
-      >
-        {isCloning ? "Cloning..." : "Clone Repository"}
-      </Button>
+      <DialogFooter
+        actions={[
+          {
+            label: isCloning ? "Cloning..." : "Clone Repository",
+            color: "primary",
+            form: formId,
+            disabled: !url || !directory || isCloning,
+            isLoading: isCloning,
+          },
+        ]}
+      />
     </VStack>
   );
 }

apps/yaak-client/components/CreateEnvironmentDialog.tsx

@@ -1,10 +1,10 @@
 import { createWorkspaceModel } from "@yaakapp-internal/models";
-import { useState } from "react";
+import { useId, useState } from "react";
 import { useToggle } from "../hooks/useToggle";
 import { ColorIndicator } from "./ColorIndicator";
-import { Button } from "./core/Button";
 import { Checkbox } from "./core/Checkbox";
 import { ColorPickerWithThemeColors } from "./core/ColorPicker";
+import { DialogFooter } from "./core/Dialog";
 import { Label } from "./core/Label";
 import { PlainInput } from "./core/PlainInput";
 
@@ -18,9 +18,11 @@ export function CreateEnvironmentDialog({ workspaceId, hide, onCreate }: Props)
   const [name, setName] = useState<string>("");
   const [color, setColor] = useState<string | null>(null);
   const [sharable, toggleSharable] = useToggle(false);
+  const formId = useId();
   return (
     <form
-      className="pb-3 flex flex-col gap-3"
+      id={formId}
+      className="flex flex-col gap-3"
       onSubmit={async (e) => {
         e.preventDefault();
         const id = await createWorkspaceModel({
@@ -59,10 +61,17 @@ export function CreateEnvironmentDialog({ workspaceId, hide, onCreate }: Props)
         </Label>
         <ColorPickerWithThemeColors onChange={setColor} color={color} />
       </div>
-      <Button type="submit" color="secondary" className="mt-3">
-        {color != null && <ColorIndicator color={color} />}
-        Create Environment
-      </Button>
+      <DialogFooter
+        inline
+        actions={[
+          {
+            label: "Create Environment",
+            color: "secondary",
+            form: formId,
+            leftSlot: color != null ? <ColorIndicator color={color} /> : undefined,
+          },
+        ]}
+      />
     </form>
   );
 }

apps/yaak-client/components/CreateWorkspaceDialog.tsx

@@ -2,13 +2,13 @@ import { gitMutations } from "@yaakapp-internal/git";
 import type { WorkspaceMeta } from "@yaakapp-internal/models";
 import { createGlobalModel, updateModel } from "@yaakapp-internal/models";
 import { VStack } from "@yaakapp-internal/ui";
-import { useState } from "react";
+import { useId, useState } from "react";
 import { router } from "../lib/router";
 import { setupOrConfigureEncryption } from "../lib/setupOrConfigureEncryption";
 import { rpc } from "../lib/rpc";
 import { showErrorToast } from "../lib/toast";
-import { Button } from "./core/Button";
 import { Checkbox } from "./core/Checkbox";
+import { DialogFooter } from "./core/Dialog";
 import { Label } from "./core/Label";
 import { PlainInput } from "./core/PlainInput";
 import { EncryptionHelp } from "./EncryptionHelp";
@@ -26,12 +26,13 @@ export function CreateWorkspaceDialog({ hide }: Props) {
     initGit?: boolean;
   }>({ filePath: null, initGit: false });
   const [setupEncryption, setSetupEncryption] = useState<boolean>(false);
+  const formId = useId();
   return (
     <VStack
       as="form"
+      id={formId}
       space={3}
       alignItems="start"
-      className="pb-3"
       onSubmit={async (e) => {
         e.preventDefault();
         const workspaceId = await createGlobalModel({ model: "workspace", name });
@@ -89,9 +90,7 @@ export function CreateWorkspaceDialog({ hide }: Props) {
           title="Enable Encryption"
         />
       </div>
-      <Button type="submit" color="primary" className="w-full mt-3">
-        Create Workspace
-      </Button>
+      <DialogFooter actions={[{ label: "Create Workspace", color: "primary", form: formId }]} />
     </VStack>
   );
 }

apps/yaak-client/components/EnvironmentEditDialog.tsx

@@ -4,8 +4,16 @@ import type { TreeHandle, TreeNode, TreeProps } from "@yaakapp-internal/ui";
 import { Banner, Icon, InlineCode, SplitLayout, Tree } from "@yaakapp-internal/ui";
 import { atom, useAtomValue } from "jotai";
 import { atomFamily } from "jotai-family";
-import { useCallback, useLayoutEffect, useRef, useState } from "react";
-import { createSubEnvironmentAndActivate } from "../commands/createEnvironment";
+import {
+  createContext,
+  useCallback,
+  useContext,
+  useEffect,
+  useLayoutEffect,
+  useRef,
+  useState,
+} from "react";
+import { createSubEnvironment } from "../commands/createEnvironment";
 import { activeWorkspaceAtom, activeWorkspaceIdAtom } from "../hooks/useActiveWorkspace";
 import {
   environmentsBreakdownAtom,
@@ -40,6 +48,9 @@ interface Props {
 
 type TreeModel = Environment | Workspace;
 
+/** Lets tree row slots create a sub-environment and select it in the editor. */
+const CreateSubEnvironmentContext = createContext<() => Promise<void>>(async () => {});
+
 export function EnvironmentEditDialog({ initialEnvironmentId, setRef }: Props) {
   const { allEnvironments, baseEnvironment, baseEnvironments } = useEnvironmentsBreakdown();
   const [selectedEnvironmentId, setSelectedEnvironmentId] = useState<string | null>(
@@ -115,7 +126,7 @@ function EnvironmentEditDialogSidebar({
   const activeWorkspaceId = useAtomValue(activeWorkspaceIdAtom) ?? "";
   const treeId = `environment.${activeWorkspaceId}.sidebar`;
   const treeRef = useRef<TreeHandle>(null);
-  const { baseEnvironment, baseEnvironments } = useEnvironmentsBreakdown();
+  const { allEnvironments, baseEnvironment, baseEnvironments } = useEnvironmentsBreakdown();
 
   // oxlint-disable-next-line react-hooks/exhaustive-deps -- none
   useLayoutEffect(() => {
@@ -124,6 +135,31 @@ function EnvironmentEditDialogSidebar({
     treeRef.current?.focus();
   }, []);
 
+  // A just-created environment to select once it reaches the model store. Selecting it before
+  // then would show a "failed to find" error in the editor, and the tree would drop the
+  // selection of an item it doesn't have yet.
+  const [pendingSelectionId, setPendingSelectionId] = useState<string | null>(null);
+  const tree = useAtomValue(treeAtom);
+  useEffect(() => {
+    if (pendingSelectionId == null) return;
+    if (!allEnvironments.some((e) => e.id === pendingSelectionId)) return;
+
+    setPendingSelectionId(null);
+    setSelectedEnvironmentId(pendingSelectionId);
+
+    // The tree leaves out sub-environments while there are multiple base environments
+    const node = tree == null ? null : findTreeNode(tree, pendingSelectionId);
+    if (node == null) return;
+    if (node.parent != null) {
+      // Expand the parent so the new item is visible to be selected
+      const parentId = node.parent.item.id;
+      jotaiStore.set(collapsedFamily(treeId), (prev) => ({ ...prev, [parentId]: false }));
+    }
+    // Wait a frame so the tree's own pending selection fixups, which may have been scheduled
+    // before the new item arrived, don't reset this selection
+    requestAnimationFrame(() => treeRef.current?.selectItem(pendingSelectionId));
+  }, [allEnvironments, pendingSelectionId, setSelectedEnvironmentId, tree, treeId]);
+
   const handleDeleteEnvironment = useCallback(
     async (environment: Environment) => {
       await deleteModelWithConfirm(environment);
@@ -134,6 +170,14 @@ function EnvironmentEditDialogSidebar({
     [baseEnvironment?.id, selectedEnvironmentId, setSelectedEnvironmentId],
   );
 
+  const handleCreateSubEnvironment = useCallback(async () => {
+    const { baseEnvironment } = jotaiStore.get(environmentsBreakdownAtom);
+    if (baseEnvironment == null) return;
+    const id = await createSubEnvironment.mutateAsync(baseEnvironment);
+    // Show the new environment in the editor without changing the workspace's active environment
+    if (id != null) setPendingSelectionId(id);
+  }, []);
+
   const treeHasFocus = useCallback(() => treeRef.current?.hasFocus() ?? false, []);
 
   const getSelectedTreeModels = useCallback(
@@ -195,13 +239,14 @@ function EnvironmentEditDialogSidebar({
       const addEnvironmentItem: DropdownItem = {
         label: "Create Sub Environment",
         leftSlot: <Icon icon="plus" />,
-        onSelect: async () => {
-          await createSubEnvironment();
-        },
+        onSelect: handleCreateSubEnvironment,
       };
+      // Sub-environments aren't shown while there are multiple base environments, same as the
+      // plus button on the base environment row
+      const canCreateSubEnvironment = baseEnvironments.length <= 1;
 
       if (environment == null || environment.model !== "environment") {
-        return [addEnvironmentItem];
+        return canCreateSubEnvironment ? [addEnvironmentItem] : [];
       }
 
       const singleEnvironment = items.length === 1;
@@ -257,7 +302,7 @@ function EnvironmentEditDialogSidebar({
       ];
 
       // Add sub environment to base environment
-      if (isBaseEnvironment(environment) && singleEnvironment) {
+      if (isBaseEnvironment(environment) && singleEnvironment && canCreateSubEnvironment) {
         menuItems.push({ type: "separator" });
         menuItems.push(addEnvironmentItem);
       }
@@ -266,6 +311,7 @@ function EnvironmentEditDialogSidebar({
     },
     [
       baseEnvironments.length,
+      handleCreateSubEnvironment,
       handleDeleteEnvironment,
       handleDuplicateSelected,
       handleRenameSelected,
@@ -317,34 +363,37 @@ function EnvironmentEditDialogSidebar({
   );
 
   const renderContextMenuFn = useCallback<NonNullable<TreeProps<TreeModel>["renderContextMenu"]>>(
-    ({ items, position, onClose }) => (
-      <ContextMenu items={items as DropdownItem[]} triggerPosition={position} onClose={onClose} />
-    ),
+    ({ items, position, onClose }) =>
+      // Right-clicking empty space has nothing to offer while there are multiple base environments
+      items.length === 0 ? null : (
+        <ContextMenu items={items as DropdownItem[]} triggerPosition={position} onClose={onClose} />
+      ),
     [],
   );
 
-  const tree = useAtomValue(treeAtom);
   return (
     <aside className="x-theme-sidebar h-full w-full min-w-0 grid overflow-y-auto border-r border-border-subtle ">
       {tree != null && (
-        <div className="pt-2">
-          <Tree
-            ref={treeRef}
-            treeId={treeId}
-            collapsedAtom={collapsedFamily(treeId)}
-            className="px-2 pb-10"
-            root={tree}
-            getContextMenu={getContextMenu}
-            renderContextMenu={renderContextMenuFn}
-            onDragEnd={handleDragEnd}
-            getItemKey={(i) => `${i.id}::${i.name}`}
-            ItemLeftSlotInner={ItemLeftSlotInner}
-            ItemRightSlot={ItemRightSlot}
-            ItemInner={ItemInner}
-            onActivate={handleActivate}
-            getEditOptions={getEditOptions}
-          />
-        </div>
+        <CreateSubEnvironmentContext.Provider value={handleCreateSubEnvironment}>
+          <div className="pt-2">
+            <Tree
+              ref={treeRef}
+              treeId={treeId}
+              collapsedAtom={collapsedFamily(treeId)}
+              className="px-2 pb-10"
+              root={tree}
+              getContextMenu={getContextMenu}
+              renderContextMenu={renderContextMenuFn}
+              onDragEnd={handleDragEnd}
+              getItemKey={(i) => `${i.id}::${i.name}`}
+              ItemLeftSlotInner={ItemLeftSlotInner}
+              ItemRightSlot={ItemRightSlot}
+              ItemInner={ItemInner}
+              onActivate={handleActivate}
+              getEditOptions={getEditOptions}
+            />
+          </div>
+        </CreateSubEnvironmentContext.Provider>
       )}
     </aside>
   );
@@ -384,6 +433,15 @@ const treeAtom = atom<TreeNode<TreeModel> | null>((get) => {
   return root;
 });
 
+function findTreeNode(node: TreeNode<TreeModel>, id: string): TreeNode<TreeModel> | null {
+  if (node.item.id === id) return node;
+  for (const child of node.children ?? []) {
+    const found = findTreeNode(child, id);
+    if (found != null) return found;
+  }
+  return null;
+}
+
 function ItemLeftSlotInner({ item }: { item: TreeModel }) {
   const { baseEnvironments } = useEnvironmentsBreakdown();
   return baseEnvironments.length > 1 ? (
@@ -395,6 +453,7 @@ function ItemLeftSlotInner({ item }: { item: TreeModel }) {
 
 function ItemRightSlot({ item }: { item: TreeModel }) {
   const { baseEnvironments } = useEnvironmentsBreakdown();
+  const handleCreateSubEnvironment = useContext(CreateSubEnvironmentContext);
   return (
     <>
       {item.model === "environment" && baseEnvironments.length <= 1 && isBaseEnvironment(item) && (
@@ -405,7 +464,7 @@ function ItemRightSlot({ item }: { item: TreeModel }) {
           icon="plus_circle"
           className="opacity-50 hover:opacity-100"
           title="Add Sub-Environment"
-          onClick={createSubEnvironment}
+          onClick={handleCreateSubEnvironment}
         />
       )}
     </>
@@ -425,13 +484,6 @@ function ItemInner({ item }: { item: TreeModel }) {
   );
 }
 
-async function createSubEnvironment() {
-  const { baseEnvironment } = jotaiStore.get(environmentsBreakdownAtom);
-  if (baseEnvironment == null) return;
-  const id = await createSubEnvironmentAndActivate.mutateAsync(baseEnvironment);
-  return id;
-}
-
 function getEditOptions(item: TreeModel) {
   const options: ReturnType<NonNullable<TreeProps<TreeModel>["getEditOptions"]>> = {
     defaultValue: item.name,

apps/yaak-client/components/ExportDataDialog.tsx

@@ -1,6 +1,6 @@
 import type { Workspace } from "@yaakapp-internal/models";
 import { workspacesAtom } from "@yaakapp-internal/models";
-import { HStack, VStack } from "@yaakapp-internal/ui";
+import { VStack } from "@yaakapp-internal/ui";
 import { useAtomValue } from "jotai";
 import { useCallback, useMemo, useState } from "react";
 import slugify from "slugify";
@@ -8,9 +8,9 @@ import { activeWorkspaceAtom } from "../hooks/useActiveWorkspace";
 import { pluralizeCount } from "../lib/pluralize";
 import { rpc } from "../lib/rpc";
 import { CommercialUseBanner } from "./CommercialUseBanner";
-import { Button } from "./core/Button";
 import { Checkbox } from "./core/Checkbox";
 import { DetailsBanner } from "./core/DetailsBanner";
+import { DialogFooter } from "./core/Dialog";
 import { Link } from "./core/Link";
 import { platform } from "@yaakapp-internal/platform";
 
@@ -65,29 +65,30 @@ function ExportDataDialogContent({
     const ids = Object.keys(selectedWorkspaces).filter((k) => selectedWorkspaces[k]);
     const workspace = ids.length === 1 ? workspaces.find((w) => w.id === ids[0]) : undefined;
     const slug = workspace ? slugify(workspace.name, { lower: true }) : "workspaces";
-    const exportPath = await platform.dialog.save({
-      title: "Export Data",
-      defaultPath: `yaak.${slug}.json`,
-    });
-    if (exportPath == null) {
-      return;
-    }
-
-    await rpc("cmd_export_data", {
+    const document = await rpc<string>("cmd_export_data", {
       workspaceIds: ids,
-      exportPath,
       includePrivateEnvironments: includePrivateEnvironments,
     });
+
+    const savedTo = await platform.files.save(
+      `yaak.${slug}.json`,
+      new TextEncoder().encode(document),
+      [{ name: "JSON", extensions: ["json"] }],
+    );
+    if (savedTo == null) {
+      return; // Cancelled
+    }
+
     onHide();
-    onSuccess(exportPath);
+    onSuccess(savedTo);
   }, [includePrivateEnvironments, onHide, onSuccess, selectedWorkspaces, workspaces]);
 
   const allSelected = workspaces.every((w) => selectedWorkspaces[w.id]);
   const numSelected = Object.values(selectedWorkspaces).filter(Boolean).length;
   const noneSelected = numSelected === 0;
   return (
-    <div className="h-full w-full grid grid-rows-[minmax(0,1fr)_auto] overflow-hidden rounded-b-lg">
-      <VStack space={3} className="overflow-auto px-5 pb-6">
+    <>
+      <VStack space={3} className="pb-4">
         <CommercialUseBanner source="data-export" title="Exporting work data?" />
 
         <table className="w-full mb-auto min-w-full max-w-full divide-y divide-surface-highlight">
@@ -140,29 +141,22 @@ function ExportDataDialogContent({
           />
         </DetailsBanner>
       </VStack>
-      <footer className="px-5 grid grid-cols-[1fr_auto] items-center bg-surface py-3 border-t border-border-subtle">
-        <div>
+      <DialogFooter
+        leftSlot={
           <Link href="https://yaak.app/button/new" noUnderline className="text-text-subtlest">
             Create Run Button
           </Link>
-        </div>
-        <HStack space={2} justifyContent="end">
-          <Button size="sm" className="focus" variant="border" onClick={onHide}>
-            Cancel
-          </Button>
-          <Button
-            size="sm"
-            type="submit"
-            className="focus"
-            color="primary"
-            disabled={noneSelected}
-            onClick={() => handleExport()}
-          >
-            Export{" "}
-            {pluralizeCount("Workspace", numSelected, { omitSingle: true, noneWord: "Nothing" })}
-          </Button>
-        </HStack>
-      </footer>
-    </div>
+        }
+        actions={[
+          { label: "Cancel", onClick: onHide },
+          {
+            label: `Export ${pluralizeCount("Workspace", numSelected, { omitSingle: true, noneWord: "Nothing" })}`,
+            color: "primary",
+            disabled: noneSelected,
+            onClick: () => handleExport(),
+          },
+        ]}
+      />
+    </>
   );
 }

apps/yaak-client/components/GlobalHooks.tsx

@@ -1,3 +1,4 @@
+import type { NavigateWorkspace } from "@yaakapp-internal/tauri-client";
 import { activeRequestAtom } from "../hooks/useActiveRequest";
 import { useSubscribeActiveWorkspaceId } from "../hooks/useActiveWorkspace";
 import { useActiveWorkspaceChangedToast } from "../hooks/useActiveWorkspaceChangedToast";
@@ -5,10 +6,13 @@ import { useHotKey, useSubscribeHotKeys } from "../hooks/useHotKey";
 import { useSubscribeHttpAuthentication } from "../hooks/useHttpAuthentication";
 import { useSyncFontSizeSetting } from "../hooks/useSyncFontSizeSetting";
 import { useSyncWorkspaceChildModels } from "../hooks/useSyncWorkspaceChildModels";
+import { usePlatformEvent } from "../hooks/usePlatformEvent";
 import { useSyncZoomSetting } from "../hooks/useSyncZoomSetting";
 import { useSubscribeTemplateFunctions } from "../hooks/useTemplateFunctions";
+import { fireAndForget } from "../lib/fireAndForget";
 import { jotaiStore } from "../lib/jotai";
 import { renameModelWithPrompt } from "../lib/renameModelWithPrompt";
+import { router } from "../lib/router";
 
 export function GlobalHooks() {
   useSyncZoomSetting();
@@ -24,6 +28,20 @@ export function GlobalHooks() {
   useActiveWorkspaceChangedToast();
   useSubscribeHotKeys();
 
+  usePlatformEvent("show_home", () => {
+    fireAndForget(router.navigate({ to: "/", search: { home: true } }));
+  });
+
+  usePlatformEvent<NavigateWorkspace>("navigate_workspace", ({ workspaceId, environmentId }) => {
+    fireAndForget(
+      router.navigate({
+        to: "/workspaces/$workspaceId",
+        params: { workspaceId },
+        search: { environment_id: environmentId },
+      }),
+    );
+  });
+
   useHotKey(
     "request.rename",
     async () => {

apps/yaak-client/components/GrpcEditor.tsx

@@ -1,9 +1,8 @@
 import { linter } from "@codemirror/lint";
 import type { EditorView } from "@codemirror/view";
 import { jsoncLanguage } from "@shopify/lang-jsonc";
-import type { GrpcRequest } from "@yaakapp-internal/models";
-import { FormattedError, InlineCode, VStack } from "@yaakapp-internal/ui";
-import classNames from "classnames";
+import { type GrpcRequest, patchModel } from "@yaakapp-internal/models";
+import { Banner, FormattedError, Icon, InlineCode, VStack } from "@yaakapp-internal/ui";
 import {
   handleRefresh,
   jsonCompletion,
@@ -11,12 +10,20 @@ import {
   stateExtensions,
   updateSchema,
 } from "codemirror-json-schema";
+import type { JSONSchema7 } from "json-schema";
+import type { ReactNode } from "react";
 import { useCallback, useEffect, useMemo, useState } from "react";
 import type { ReflectResponseService } from "../hooks/useGrpc";
+import { wasUpdatedExternally } from "../hooks/useRequestUpdateKey";
 import { showAlert } from "../lib/alert";
+import { showConfirm } from "../lib/confirm";
 import { showDialog } from "../lib/dialog";
+import type { JsonSchema } from "../lib/jsonSchemaExample";
+import { buildExampleFromSchema } from "../lib/jsonSchemaExample";
 import { pluralizeCount } from "../lib/pluralize";
+import { queryClient } from "../lib/queryClient";
 import { Button } from "./core/Button";
+import { Dropdown } from "./core/Dropdown";
 import type { EditorProps } from "./core/Editor/Editor";
 import { Editor } from "./core/Editor/LazyEditor";
 import { GrpcProtoSelectionDialog } from "./GrpcProtoSelectionDialog";
@@ -29,6 +36,11 @@ type Props = Pick<EditorProps, "heightMode" | "onChange" | "className" | "forceU
   protoFiles: string[];
 };
 
+type MethodSchema =
+  | { type: "none" }
+  | { type: "schema"; schema: JsonSchema }
+  | { type: "error"; id: string; title: string; body: ReactNode; log: unknown[] };
+
 export function GrpcEditor({
   services,
   reflectionError,
@@ -42,21 +54,16 @@ export function GrpcEditor({
     setEditorView(h);
   }, []);
 
-  // Find the schema for the selected service and method and update the editor
-  useEffect(() => {
-    if (
-      editorView == null ||
-      services === null ||
-      request.service === null ||
-      request.method === null
-    ) {
-      return;
+  // Find the schema for the selected service and method
+  const methodSchema = useMemo<MethodSchema>(() => {
+    if (services === null || request.service === null || request.method === null) {
+      return { type: "none" };
     }
 
     const s = services.find((s) => s.name === request.service);
     if (s == null) {
-      console.log("Failed to find service", { service: request.service, services });
-      showAlert({
+      return {
+        type: "error",
         id: "grpc-find-service-error",
         title: "Couldn't Find Service",
         body: (
@@ -64,14 +71,14 @@ export function GrpcEditor({
             Failed to find service <InlineCode>{request.service}</InlineCode> in schema
           </>
         ),
-      });
-      return;
+        log: ["Failed to find service", { service: request.service, services }],
+      };
     }
 
     const schema = s.methods.find((m) => m.name === request.method)?.schema;
-    if (request.method != null && schema == null) {
-      console.log("Failed to find method", { method: request.method, methods: s?.methods });
-      showAlert({
+    if (schema == null) {
+      return {
+        type: "error",
         id: "grpc-find-schema-error",
         title: "Couldn't Find Method",
         body: (
@@ -80,18 +87,15 @@ export function GrpcEditor({
             <InlineCode>{request.service}</InlineCode> in schema
           </>
         ),
-      });
-      return;
-    }
-
-    if (schema == null) {
-      return;
+        log: ["Failed to find method", { method: request.method, methods: s.methods }],
+      };
     }
 
     try {
-      updateSchema(editorView, JSON.parse(schema));
+      return { type: "schema", schema: JSON.parse(schema) as JsonSchema };
     } catch (err) {
-      showAlert({
+      return {
+        type: "error",
         id: "grpc-parse-schema-error",
         title: "Failed to Parse Schema",
         body: (
@@ -103,9 +107,22 @@ export function GrpcEditor({
             <FormattedError>{String(err)}</FormattedError>
           </VStack>
         ),
-      });
+        log: ["Failed to parse schema", err],
+      };
     }
-  }, [editorView, services, request.method, request.service]);
+  }, [services, request.method, request.service]);
+
+  useEffect(() => {
+    if (methodSchema.type !== "error") return;
+    console.log(...methodSchema.log);
+    showAlert({ id: methodSchema.id, title: methodSchema.title, body: methodSchema.body });
+  }, [methodSchema]);
+
+  // Update the editor whenever the schema changes
+  useEffect(() => {
+    if (editorView == null || methodSchema.type !== "schema") return;
+    updateSchema(editorView, methodSchema.schema as JSONSchema7);
+  }, [editorView, methodSchema]);
 
   const extraExtensions = useMemo(
     () => [
@@ -124,45 +141,146 @@ export function GrpcEditor({
   const reflectionUnavailable = reflectionError?.match(/unimplemented/i);
   reflectionError = reflectionUnavailable ? undefined : reflectionError;
 
+  const handleGenerateExample = useCallback(async () => {
+    if (methodSchema.type !== "schema") return;
+
+    if (request.message.trim() !== "") {
+      const confirmed = await showConfirm({
+        id: "grpc-generate-example",
+        title: "Generate Example",
+        description: "The current message will be replaced with an example.",
+        confirmText: "Generate",
+      });
+      if (!confirmed) return;
+    }
+
+    const message = JSON.stringify(buildExampleFromSchema(methodSchema.schema), null, 2);
+    await patchModel(request, { message });
+
+    // Force the editor to pick up the new message
+    wasUpdatedExternally(request.id);
+  }, [methodSchema, request]);
+
+  // The reflect query is keyed by request, url and proto files, so a prefix invalidate
+  // reaches it without threading a refetch down from the connection layout.
+  const handleReloadSchema = useCallback(
+    () => queryClient.invalidateQueries({ queryKey: ["grpc_reflect", request.id] }),
+    [request.id],
+  );
+
+  const handleShowReflectionError = useCallback(() => {
+    showDialog({
+      id: "grpc-reflection-error",
+      title: "Reflection Failed",
+      size: "sm",
+      render: ({ hide }) => (
+        <>
+          <FormattedError>{reflectionError ?? "unknown"}</FormattedError>
+          <div className="w-full my-4">
+            <Button
+              className="ml-auto"
+              color="primary"
+              size="sm"
+              onClick={async () => {
+                hide();
+                await handleReloadSchema();
+              }}
+            >
+              Retry
+            </Button>
+          </div>
+        </>
+      ),
+    });
+  }, [handleReloadSchema, reflectionError]);
+
   const actions = useMemo(
     () => [
-      <div key="reflection" className={classNames(services == null && "opacity-100!")}>
-        <Button
-          size="xs"
-          color={
-            reflectionLoading
-              ? "secondary"
-              : reflectionUnavailable
-                ? "info"
-                : reflectionError
-                  ? "danger"
-                  : "secondary"
-          }
-          isLoading={reflectionLoading}
-          onClick={() => {
-            showDialog({
-              title: "Configure Schema",
-              size: "md",
-              id: "reflection-failed",
-              render: ({ hide }) => <GrpcProtoSelectionDialog onDone={hide} />,
-            });
-          }}
+      // Matches the GraphQL editor: one always-visible control labelled by schema state,
+      // with everything schema-related behind it.
+      <div key="schema" className="opacity-100!">
+        <Dropdown
+          items={[
+            {
+              // Hidden for servers without reflection, which isn't an error
+              hidden: !reflectionError,
+              type: "content",
+              label: (
+                <Banner color="danger">
+                  <p className="mb-1">Reflection failed</p>
+                  <Button
+                    size="xs"
+                    color="danger"
+                    variant="border"
+                    onClick={handleShowReflectionError}
+                  >
+                    View Error
+                  </Button>
+                </Banner>
+              ),
+            },
+            {
+              label: "Generate Example Message",
+              leftSlot: <Icon icon="magic_wand" />,
+              disabled: methodSchema.type !== "schema",
+              onSelect: handleGenerateExample,
+            },
+            { type: "separator" },
+            {
+              label: "Reload Schema",
+              leftSlot: <Icon icon="refresh" spin={reflectionLoading} />,
+              keepOpenOnSelect: true,
+              onSelect: handleReloadSchema,
+            },
+            {
+              label: protoFiles.length > 0 ? "Select Proto Files\u2026" : "Configure Schema\u2026",
+              leftSlot: <Icon icon="settings" />,
+              onSelect: () => {
+                showDialog({
+                  title: "Configure Schema",
+                  size: "md",
+                  className: "h-[30rem]",
+                  id: "grpc-configure-schema",
+                  render: ({ hide }) => <GrpcProtoSelectionDialog onDone={hide} />,
+                });
+              },
+            },
+          ]}
         >
-          {reflectionLoading
-            ? "Inspecting Schema"
-            : reflectionUnavailable
-              ? "Select Proto Files"
-              : reflectionError
-                ? "Server Error"
-                : protoFiles.length > 0
-                  ? pluralizeCount("File", protoFiles.length)
-                  : services != null && protoFiles.length === 0
-                    ? "Schema Detected"
-                    : "Select Schema"}
-        </Button>
+          <Button
+            size="sm"
+            variant="border"
+            title="Schema"
+            forDropdown
+            isLoading={reflectionLoading}
+            color={reflectionUnavailable ? "info" : reflectionError ? "danger" : "default"}
+          >
+            {reflectionLoading
+              ? "Inspecting Schema"
+              : reflectionUnavailable
+                ? "Select Proto Files"
+                : reflectionError
+                  ? "Server Error"
+                  : protoFiles.length > 0
+                    ? pluralizeCount("File", protoFiles.length)
+                    : services != null
+                      ? "Schema Detected"
+                      : "Select Schema"}
+          </Button>
+        </Dropdown>
       </div>,
     ],
-    [protoFiles.length, reflectionError, reflectionLoading, reflectionUnavailable, services],
+    [
+      handleGenerateExample,
+      handleReloadSchema,
+      handleShowReflectionError,
+      methodSchema.type,
+      protoFiles.length,
+      reflectionError,
+      reflectionLoading,
+      reflectionUnavailable,
+      services,
+    ],
   );
 
   return (

apps/yaak-client/components/GrpcProtoSelectionDialog.tsx

@@ -1,11 +1,11 @@
 import type { GrpcRequest } from "@yaakapp-internal/models";
-import { Banner, HStack, Icon, InlineCode, VStack } from "@yaakapp-internal/ui";
+import { Banner, InlineCode, VStack } from "@yaakapp-internal/ui";
 import { useActiveRequest } from "../hooks/useActiveRequest";
 import { useGrpc } from "../hooks/useGrpc";
 import { useGrpcProtoFiles } from "../hooks/useGrpcProtoFiles";
 import { pluralizeCount } from "../lib/pluralize";
-import { Button } from "./core/Button";
-import { IconButton } from "./core/IconButton";
+import { DialogFooter } from "./core/Dialog";
+import { PathList } from "./core/PathList";
 import { Link } from "./core/Link";
 import { platform } from "@yaakapp-internal/platform";
 
@@ -20,7 +20,10 @@ export function GrpcProtoSelectionDialog(props: Props) {
   return <GrpcProtoSelectionDialogWithRequest request={request} {...props} />;
 }
 
-function GrpcProtoSelectionDialogWithRequest({ request }: Props & { request: GrpcRequest }) {
+function GrpcProtoSelectionDialogWithRequest({
+  request,
+  onDone,
+}: Props & { request: GrpcRequest }) {
   const protoFilesKv = useGrpcProtoFiles(request.id);
   const protoFiles = protoFilesKv.value ?? [];
   const grpc = useGrpc(request, null, protoFiles);
@@ -38,54 +41,8 @@ function GrpcProtoSelectionDialogWithRequest({ request }: Props & { request: Grp
   }
 
   return (
-    <VStack className="flex-col-reverse mb-3" space={3}>
-      {/* Buttons on top so they get focus first */}
-      <HStack space={2} justifyContent="start" className="flex-row-reverse mt-3">
-        <Button
-          color="primary"
-          variant="border"
-          onClick={async () => {
-            const selected = await platform.dialog.open({
-              title: "Select Proto Files",
-              multiple: true,
-              filters: [{ name: "Proto Files", extensions: ["proto"] }],
-            });
-            if (selected == null) return;
-
-            const newFiles = selected.filter((p) => !protoFiles.includes(p));
-            await protoFilesKv.set([...protoFiles, ...newFiles]);
-            await grpc.reflect.refetch();
-          }}
-        >
-          Add Proto Files
-        </Button>
-        <Button
-          variant="border"
-          color="primary"
-          onClick={async () => {
-            const selected = await platform.dialog.open({
-              title: "Select Proto Directory",
-              directory: true,
-            });
-            if (selected == null) return;
-
-            await protoFilesKv.set([...protoFiles.filter((f) => f !== selected), selected]);
-            await grpc.reflect.refetch();
-          }}
-        >
-          Add Import Folders
-        </Button>
-        <Button
-          isLoading={grpc.reflect.isFetching}
-          disabled={grpc.reflect.isFetching}
-          variant="border"
-          color="secondary"
-          onClick={() => grpc.reflect.refetch()}
-        >
-          Refresh Schema
-        </Button>
-      </HStack>
-      <VStack space={5}>
+    <>
+      <VStack space={5} className="pb-4">
         {reflectError && (
           <Banner color="warning">
             <h1 className="font-bold">
@@ -128,46 +85,47 @@ function GrpcProtoSelectionDialogWithRequest({ request }: Props & { request: Grp
           </Banner>
         )}
 
-        {protoFiles.length > 0 && (
-          <table className="w-full divide-y divide-surface-highlight">
-            <thead>
-              <tr>
-                <th className="text-text-subtlest" colSpan={3}>
-                  Added File Paths
-                </th>
-              </tr>
-            </thead>
-            <tbody className="divide-y divide-surface-highlight">
-              {protoFiles.map((f, i) => {
-                const parts = f.split("/");
-                // oxlint-disable-next-line no-array-index-key -- none
-                return (
-                  <tr key={f + i} className="group">
-                    <td>
-                      <Icon icon={f.endsWith(".proto") ? "file_code" : "folder_code"} />
-                    </td>
-                    <td className="pl-1 font-mono text-sm" title={f}>
-                      {parts.length > 3 && ".../"}
-                      {parts.slice(-3).join("/")}
-                    </td>
-                    <td className="w-0 py-0.5">
-                      <IconButton
-                        title="Remove file"
-                        variant="border"
-                        size="xs"
-                        icon="trash"
-                        className="my-0.5 ml-auto opacity-50 transition-opacity group-hover:opacity-100"
-                        onClick={async () => {
-                          await protoFilesKv.set(protoFiles.filter((p) => p !== f));
-                        }}
-                      />
-                    </td>
-                  </tr>
-                );
-              })}
-            </tbody>
-          </table>
-        )}
+        <PathList
+          items={protoFiles.map((path) => ({
+            path,
+            icon: path.endsWith(".proto") ? "file_code" : "folder_code",
+          }))}
+          onRemove={async (path) => {
+            await protoFilesKv.set(protoFiles.filter((p) => p !== path));
+            await grpc.reflect.refetch();
+          }}
+          addLabel="Add proto files or an import folder"
+          addItems={[
+            {
+              label: "Proto files",
+              icon: "file_code",
+              onSelect: async () => {
+                const selected = await platform.dialog.open({
+                  title: "Select Proto Files",
+                  multiple: true,
+                  filters: [{ name: "Proto Files", extensions: ["proto"] }],
+                });
+                if (selected == null) return;
+                const newFiles = selected.filter((p) => !protoFiles.includes(p));
+                await protoFilesKv.set([...protoFiles, ...newFiles]);
+                await grpc.reflect.refetch();
+              },
+            },
+            {
+              label: "Import folder",
+              icon: "folder_code",
+              onSelect: async () => {
+                const selected = await platform.dialog.open({
+                  title: "Select Proto Directory",
+                  directory: true,
+                });
+                if (selected == null) return;
+                await protoFilesKv.set([...protoFiles.filter((f) => f !== selected), selected]);
+                await grpc.reflect.refetch();
+              },
+            },
+          ]}
+        />
         {reflectionUnimplemented && protoFiles.length === 0 && (
           <Banner>
             <InlineCode>{request.url}</InlineCode> doesn&apos;t implement{" "}
@@ -178,6 +136,17 @@ function GrpcProtoSelectionDialogWithRequest({ request }: Props & { request: Grp
           </Banner>
         )}
       </VStack>
-    </VStack>
+      <DialogFooter
+        actions={[
+          {
+            label: "Refresh Schema",
+            isLoading: grpc.reflect.isFetching,
+            disabled: grpc.reflect.isFetching,
+            onClick: () => grpc.reflect.refetch(),
+          },
+          { label: "Done", color: "primary", onClick: onDone },
+        ]}
+      />
+    </>
   );
 }

apps/yaak-client/components/GrpcRequestPane.tsx

@@ -133,6 +133,8 @@ export function GrpcRequestPane({
     onSend({ message: activeRequest.message });
   }, [activeRequest, onSend]);
 
+  const hasDescription = activeRequest.description.trim().length > 0;
+
   const tabs: TabItem[] = useMemo(
     () => [
       { value: TAB_MESSAGE, label: "Message" },
@@ -146,10 +148,10 @@ export function GrpcRequestPane({
       {
         value: TAB_DESCRIPTION,
         label: "Info",
-        rightSlot: activeRequest.description && <CountBadge count={true} />,
+        rightSlot: hasDescription && <CountBadge count={true} />,
       },
     ],
-    [activeRequest.description, authTab, metadataTab, numSettingsOverrides],
+    [authTab, hasDescription, metadataTab, numSettingsOverrides],
   );
 
   const handleMetadataChange = useCallback(
@@ -194,13 +196,6 @@ export function GrpcRequestPane({
               type: "default",
               shortLabel: o.label,
             }))}
-            itemsAfter={[
-              {
-                label: "Refresh",
-                type: "default",
-                leftSlot: <Icon size="sm" icon="refresh" />,
-              },
-            ]}
           >
             <Button
               size="sm"

apps/yaak-client/components/HeadersEditor.tsx

@@ -9,6 +9,7 @@ import type { HeaderValuePreset } from "../lib/data/headerValuePresets";
 import { headerNames } from "../lib/data/headerNames";
 import { mimeTypes } from "../lib/data/mimetypes";
 import { userAgents } from "../lib/data/userAgents";
+import { validateHttpHeader } from "../lib/validateHttpHeader";
 import { CountBadge } from "./core/CountBadge";
 import { DetailsBanner } from "./core/DetailsBanner";
 import type { GenericCompletion, GenericCompletionConfig } from "./core/Editor/genericCompletion";
@@ -178,13 +179,3 @@ const nameAutocomplete: PairEditorProps["nameAutocomplete"] = {
         },
   ),
 };
-
-const validateHttpHeader = (v: string) => {
-  if (v === "") {
-    return true;
-  }
-
-  // Template strings are not allowed so we replace them with a valid example string
-  const withoutTemplateStrings = v.replace(/\$\{\[\s*[^\]\s]+\s*]}/gi, "123");
-  return withoutTemplateStrings.match(/^[a-zA-Z0-9-_]+$/) !== null;
-};

apps/yaak-client/components/HttpRequestPane.tsx

@@ -165,6 +165,8 @@ export function HttpRequestPane({ style, fullHeight, className, activeRequest }:
       : 0;
   }
 
+  const hasDescription = activeRequest.description.trim().length > 0;
+
   const tabs = useMemo<TabItem[]>(
     () => [
       {
@@ -260,6 +262,7 @@ export function HttpRequestPane({ style, fullHeight, className, activeRequest }:
       {
         value: TAB_DESCRIPTION,
         label: "Info",
+        rightSlot: hasDescription && <CountBadge count={true} />,
       },
     ],
     [
@@ -267,6 +270,7 @@ export function HttpRequestPane({ style, fullHeight, className, activeRequest }:
       authTab,
       contentType,
       handleContentTypeChange,
+      hasDescription,
       headersTab,
       numParams,
       numSettingsOverrides,

apps/yaak-client/components/ImportDataDialog.tsx

@@ -1,139 +1,763 @@
-import { platform } from "@yaakapp-internal/platform";
-import { Icon, VStack } from "@yaakapp-internal/ui";
+import {
+  type ImportDestination,
+  type ImportPlan,
+  type ImportPlanItem,
+  type ImportSource,
+  type Workspace,
+} from "@yaakapp-internal/models";
+import { Banner, FormattedError, HStack, Icon, VStack } from "@yaakapp-internal/ui";
 import classNames from "classnames";
-import { useEffect, useRef, useState } from "react";
-import { useLocalStorage } from "react-use";
+import { type ComponentProps, useCallback, useEffect, useMemo, useRef, useState } from "react";
+import { errorMessage } from "../lib/errorMessage";
+import { pluralize } from "../lib/pluralize";
 import { CommercialUseBanner } from "./CommercialUseBanner";
-import { Button } from "./core/Button";
-import { PlainInput } from "./core/PlainInput";
+import {
+  ImportSourceList,
+  type ImportSourceDetection,
+  type ImportSourcePath,
+  InlineButton,
+  toSourcePath,
+} from "./ImportSourceList";
+import type { CheckboxTreeNode } from "./core/CheckboxTree";
+import { CheckboxTree } from "./core/CheckboxTree";
+import { Chip } from "./core/Chip";
+import { DialogFooter } from "./core/Dialog";
+import { IconTooltip } from "./core/IconTooltip";
+import { Select } from "./core/Select";
+import { SegmentedControl } from "./core/SegmentedControl";
 
 interface Props {
-  importFile: (filePath: string) => Promise<void>;
-  importUrl: (url: string) => Promise<void>;
+  currentWorkspace: Workspace | null;
+  workspaces: Workspace[];
+  planSources: (sources: ImportSourcePath[], destination: ImportDestination) => Promise<ImportPlan>;
+  detectSource: (source: ImportSourcePath) => Promise<string>;
+  listSources: (workspaceId: string) => Promise<ImportSource[]>;
+  findSourcesForOrigin: (args: { filePath?: string; url?: string }) => Promise<ImportSource[]>;
+  commit: (plan: ImportPlan) => Promise<void>;
+  cancel: () => void;
+  onError: (err: unknown) => void;
 }
 
 /**
- * An absolute or relative path is unambiguously a file. Everything else is treated as a URL, so a
- * bare host like `example.com/openapi.json` still works (the backend defaults it to https).
+ * Loads the current workspace's linked sources before rendering the dialog, so the inner
+ * component can construct its initial state (prefilled path, destination) in one pass instead of
+ * patching it in with effects after the first paint.
  */
-function isFilePath(value: string): boolean {
-  return (
-    value.startsWith("/") ||
-    value.startsWith("./") ||
-    value.startsWith("../") ||
-    value.startsWith("~/") ||
-    value.startsWith("\\\\") ||
-    /^[a-zA-Z]:[\\/]/.test(value)
-  );
-}
+export function ImportDataDialog(props: Props) {
+  const [initialSources, setInitialSources] = useState<ImportSource[] | null>(null);
+  const { currentWorkspace, listSources } = props;
 
-function fileName(path: string): string {
-  return path.split(/[/\\]/).at(-1) || path;
-}
-
-export function ImportDataDialog({ importFile, importUrl }: Props) {
-  const [isLoading, setIsLoading] = useState<boolean>(false);
-  // A file path or a URL. Both inputs write here, so there is only ever one thing to import
-  const [source, setSource] = useLocalStorage<string | null>("importPathOrUrl", null);
-  const [forceUpdateKey, setForceUpdateKey] = useState<number>(0);
-  const [isHovering, setIsHovering] = useState<boolean>(false);
-  const ref = useRef<HTMLDivElement>(null);
-  const trimmedSource = source?.trim() ?? "";
-  const filePath = isFilePath(trimmedSource) ? trimmedSource : null;
-
-  const selectSource = (value: string) => {
-    setSource(value);
-    // Remount the input so it shows the path of the newly-picked file
-    setForceUpdateKey((k) => k + 1);
-  };
-
-  // Accept a file dropped anywhere on the dialog, the way SelectFile does for its button
   useEffect(() => {
-    return platform.window.onDragDrop((event) => {
-      if (event.type === "over") {
-        const p = event.position;
-        const r = ref.current?.getBoundingClientRect();
-        if (r == null) return;
-        setIsHovering(p.x >= r.left && p.x <= r.right && p.y >= r.top && p.y <= r.bottom);
-      } else if (event.type === "drop" && isHovering) {
-        const p = event.paths[0];
-        if (p) selectSource(p);
-        setIsHovering(false);
-      } else {
-        setIsHovering(false);
-      }
-    });
-  }, [isHovering, setSource]);
+    let cancelled = false;
+    const load = currentWorkspace == null ? Promise.resolve([]) : listSources(currentWorkspace.id);
+    load
+      .then((sources) => {
+        if (!cancelled) setInitialSources(sources);
+      })
+      .catch(() => {
+        if (!cancelled) setInitialSources([]);
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, [currentWorkspace, listSources]);
 
-  const handleSelectFile = async () => {
-    const selected = await platform.dialog.open({ title: "Select File", multiple: false });
-    if (selected == null) return;
-    selectSource(selected);
+  if (initialSources == null) return null;
+  return <LoadedImportDataDialog {...props} initialSources={initialSources} />;
+}
+
+function LoadedImportDataDialog({
+  currentWorkspace,
+  workspaces,
+  planSources,
+  detectSource,
+  findSourcesForOrigin,
+  commit,
+  cancel,
+  onError,
+  initialSources,
+}: Props & { initialSources: ImportSource[] }) {
+  const [isLoading, setIsLoading] = useState<boolean>(false);
+  const [sourceError, setSourceError] = useState<unknown>(null);
+  const [plan, setPlan] = useState<ImportPlan | null>(null);
+  const [items, setItems] = useState<ImportPlanItem[]>([]);
+  // null means no explicit choice yet, so the default below applies
+  const [destinationChoice, setDestinationChoice] = useState<"new" | "current" | "other" | null>(
+    null,
+  );
+  const [otherWorkspaceId, setOtherWorkspaceId] = useState<string | null>(null);
+  const [originSources, setOriginSources] = useState<ImportSource[]>(initialSources);
+  const initialPaths = useMemo(
+    () => [...new Set(initialSources.map((source) => source.origin))].map(toSourcePath),
+    [initialSources],
+  );
+  const [sources, setSources] = useState<ImportSourcePath[]>(initialPaths);
+  const knownPaths = useRef(new Set(initialPaths.map((source) => source.path)));
+  const [detections, setDetections] = useState<Record<string, ImportSourceDetection>>({});
+  const detect = useCallback(
+    (added: ImportSourcePath[]) => {
+      setDetections((prev) => ({
+        ...prev,
+        ...Object.fromEntries(added.map((s) => [s.path, { status: "loading" as const }])),
+      }));
+      for (const source of added) {
+        const settle = (detection: ImportSourceDetection) =>
+          setDetections((prev) =>
+            source.path in prev ? { ...prev, [source.path]: detection } : prev,
+          );
+        detectSource(source).then(
+          (importer) => settle({ status: "ok", importer }),
+          (err) => settle({ status: "error", message: errorMessage(err) }),
+        );
+      }
+    },
+    [detectSource],
+  );
+  const allDetected = sources.every((source) => detections[source.path]?.status === "ok");
+  useEffect(() => {
+    detect(initialPaths);
+  }, [detect, initialPaths]);
+
+  const addSources = useCallback(
+    (added: ImportSourcePath[]) => {
+      setSourceError(null);
+      const fresh = added.filter(({ path }) => {
+        if (knownPaths.current.has(path)) return false;
+        knownPaths.current.add(path);
+        return true;
+      });
+      if (fresh.length === 0) return;
+      setSources((existing) => [...existing, ...fresh]);
+      detect(fresh);
+    },
+    [detect],
+  );
+  const removeSource = (path: string) => {
+    setSourceError(null);
+    knownPaths.current.delete(path);
+    setSources((current) => current.filter((source) => source.path !== path));
+    setDetections(({ [path]: _removed, ...rest }) => rest);
   };
 
-  const handleImport = async () => {
+  useEffect(() => {
+    let cancelled = false;
+    if (sources.length === 0) {
+      setOriginSources([]);
+      return;
+    }
+    Promise.all(
+      sources.map(({ path, kind }) =>
+        findSourcesForOrigin(kind === "url" ? { url: path } : { filePath: path }),
+      ),
+    )
+      .then((found) => {
+        if (!cancelled) setOriginSources(found.flat());
+      })
+      .catch(() => {
+        if (!cancelled) setOriginSources([]);
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, [sources, findSourcesForOrigin]);
+
+  // The one workspace these sources are linked to, if there is exactly one.
+  const linkedWorkspace = useMemo(() => {
+    const ids = [...new Set(originSources.map((s) => s.workspaceId))];
+    if (ids.length !== 1) return null;
+    return workspaces.find((w) => w.id === ids[0]) ?? null;
+  }, [originSources, workspaces]);
+
+  // A file linked to the current workspace defaults back into it, so re-importing doesn't
+  // accidentally create a duplicate workspace. A file linked elsewhere only gets a suggestion —
+  // silently targeting a workspace that is neither new nor current is too surprising. An
+  // explicit choice always wins.
+  const destinationKind =
+    destinationChoice ??
+    (linkedWorkspace != null && linkedWorkspace.id === currentWorkspace?.id ? "current" : "new");
+
+  const destinationWorkspaceId =
+    destinationKind === "current"
+      ? (currentWorkspace?.id ?? null)
+      : destinationKind === "other"
+        ? otherWorkspaceId
+        : null;
+
+  const destination = (): ImportDestination => {
+    if (destinationWorkspaceId == null) {
+      return { type: "new_workspace" };
+    }
+    return {
+      type: "existing_workspace",
+      workspaceId: destinationWorkspaceId,
+    };
+  };
+
+  const handlePreview = async () => {
     setIsLoading(true);
+    setSourceError(null);
     try {
-      if (filePath != null) {
-        await importFile(filePath);
-      } else {
-        await importUrl(trimmedSource);
-      }
+      const nextPlan = await planSources(sources, destination());
+      setPlan(nextPlan);
+      setItems(nextPlan.items);
+    } catch (err) {
+      setSourceError(err);
     } finally {
       setIsLoading(false);
     }
   };
 
-  return (
-    <VStack ref={ref} space={4} className="pb-4">
-      <CommercialUseBanner source="data-import" title="Importing work data?" />
+  const handleCommit = async () => {
+    if (plan == null) return;
+    setIsLoading(true);
+    try {
+      await commit({ ...plan, items });
+    } catch (err) {
+      onError(err);
+    } finally {
+      setIsLoading(false);
+    }
+  };
 
-      <button
-        type="button"
-        onClick={handleSelectFile}
-        className={classNames(
-          "w-full rounded-lg border border-dashed px-4 py-6",
-          "flex flex-col items-center gap-1 text-center",
-          isHovering ? "border-notice bg-surface-highlight" : "border-border hover:border-text",
-        )}
-      >
-        <Icon icon="folder_input" className="text-text-subtlest w-8! h-8! mb-2" />
-        {/* Fixed height so the region doesn't resize between the empty and selected states */}
-        <div className="h-6 w-full flex items-center justify-center">
-          {filePath == null ? (
-            <div className="text-text">
-              <strong className="font-semibold">Choose a file</strong> or drag it here
-            </div>
-          ) : (
-            <div className="text-text font-mono text-xs max-w-full truncate" title={filePath}>
-              {fileName(filePath)}
-            </div>
-          )}
-        </div>
-        <div className="text-xs text-text-subtlest">
-          Supports OpenAPI, Swagger, Postman, Insomnia, and curl
-        </div>
-      </button>
+  // A folder row's checkbox carries everything beneath it, deletions included — the row labels
+  // say which of those are destructive. Checking anything also brings back the folders it needs
+  // to live in.
+  const toggleNode = (node: CheckboxTreeNode<TreeRow>, checked: boolean) => {
+    const targets = new Set(togglableItems(node).map((i) => i.modelId));
+    if (checked && node.data.kind === "item") {
+      const byId = new Map(items.map((i) => [i.modelId, i]));
+      for (const ancestor of ancestorsOf(node.data.item, byId)) {
+        if (isMissingFolder(ancestor)) targets.add(ancestor.modelId);
+      }
+    }
+    setItems((prev) => prev.map((i) => (targets.has(i.modelId) ? { ...i, selected: checked } : i)));
+  };
 
-      <VStack space={2}>
-        <PlainInput
-          label="Or enter a file path or URL"
-          size="sm"
-          placeholder="https://example.com/openapi.json"
-          defaultValue={source ?? ""}
-          forceUpdateKey={String(forceUpdateKey)}
-          onChange={setSource}
+  const resolveConflict = (modelId: string, resolution: "keep_mine" | "take_source") => {
+    setItems((prev) =>
+      prev.map((item) => (item.modelId === modelId ? { ...item, resolution } : item)),
+    );
+  };
+
+  // Deleting a folder takes its contents with it, so those rows have nothing left to decide.
+  const disabledIds = useMemo(() => {
+    const disabled = new Set<string>();
+    const byId = new Map(items.map((i) => [i.modelId, i]));
+    for (const item of items) {
+      if (item.action !== "delete") continue;
+      for (const parent of ancestorsOf(item, byId)) {
+        if (parent.action === "delete" && parent.selected) {
+          disabled.add(item.modelId);
+        }
+      }
+    }
+    return disabled;
+  }, [items]);
+
+  if (plan != null) {
+    const unchanged = items.filter((i) => i.action === "unchanged");
+    const footerNote =
+      unchanged.length > 0
+        ? `${unchanged.length} ${pluralize("resource", unchanged.length)} unchanged`
+        : "";
+    const changeCount = items.filter((item) => {
+      if (disabledIds.has(item.modelId)) return false;
+      if (item.action === "conflict") return item.resolution === "take_source";
+      if (item.action === "unchanged") return false;
+      return item.selected;
+    }).length;
+
+    // The row's label carries what kind of destination it is, so the value can just be its name
+    const [destinationLabel, destinationValue] = ((): [string, string] => {
+      if (plan.destination.type === "new_workspace") {
+        const names = plan.resources.workspaces.map((w) => w.name).filter((n) => n !== "");
+        if (names.length === 0) return ["New workspace", "Untitled"];
+        return [
+          names.length === 1 ? "New workspace" : `${names.length} new workspaces`,
+          names.join(", "),
+        ];
+      }
+      const { workspaceId } = plan.destination;
+      const name = workspaces.find((w) => w.id === workspaceId)?.name ?? "Unknown workspace";
+      return ["Destination", name];
+    })();
+
+    // The destination workspace roots the tree. It is not a plan item — commit always applies
+    // it — so its checkbox only aggregates the subtree.
+    const workspaceRoots: CheckboxTreeNode<TreeRow>[] = (() => {
+      const planDestination = plan.destination;
+      const existing =
+        planDestination.type === "existing_workspace"
+          ? workspaces.find((w) => w.id === planDestination.workspaceId)
+          : null;
+      const destinations = existing ? [existing] : plan.resources.workspaces;
+      if (destinations.length === 1) {
+        const workspace = destinations[0]!;
+        return [
+          {
+            key: workspace.id,
+            data: {
+              kind: "destination",
+              label: workspace.name,
+              isNew: planDestination.type === "new_workspace",
+            },
+            children: buildItemTree(items),
+          },
+        ];
+      }
+      const workspaceById = new Map(
+        [
+          ...plan.resources.environments,
+          ...plan.resources.folders,
+          ...plan.resources.httpRequests,
+          ...plan.resources.grpcRequests,
+          ...plan.resources.websocketRequests,
+        ].map((resource) => [resource.id, resource.workspaceId]),
+      );
+      return destinations.map((workspace) => ({
+        key: workspace.id,
+        data: {
+          kind: "destination",
+          label: workspace.name,
+          isNew: planDestination.type === "new_workspace",
+        },
+        children: buildItemTree(
+          items.filter((item) => workspaceById.get(item.modelId) === workspace.id),
+        ),
+      }));
+    })();
+
+    return (
+      <>
+        <VStack space={4} className="pb-4">
+          <div className="rounded-lg border border-border-subtle divide-y divide-border-subtle">
+            <PreviewRow label="Detected format" value={plan.importer} />
+            <PreviewRow label={destinationLabel} value={destinationValue} />
+          </div>
+
+          {plan.warnings
+            .filter(
+              (warning, index, warnings) =>
+                warnings.findIndex(
+                  (other) =>
+                    other.title === warning.title &&
+                    other.detail === warning.detail &&
+                    other.level === warning.level,
+                ) === index,
+            )
+            .map((warning) => (
+              <Banner
+                key={`${warning.level}:${warning.title}:${warning.detail}`}
+                color={warning.level === "warning" ? "warning" : "info"}
+                className="flex items-start gap-2.5"
+              >
+                <Icon
+                  icon={warning.level === "warning" ? "alert_triangle" : "info"}
+                  size="sm"
+                  className="mt-0.5"
+                />
+                <div className="min-w-0">
+                  <div className="text-sm font-medium">{warning.title}</div>
+                  <div className="text-xs text-text-subtle mt-0.5">{warning.detail}</div>
+                </div>
+              </Banner>
+            ))}
+
+          {workspaceRoots.map((root) => (
+            <div key={root.key} className="rounded-lg border border-border-subtle px-3 py-2">
+              <CheckboxTree
+                node={root}
+                checked={nodeCheckedStatus}
+                onCheck={toggleNode}
+                isCheckboxDisabled={(n) => disabledIds.has(n.key)}
+                isCollapsedByDefault={(n) =>
+                  (n.data.kind === "destination" && workspaceRoots.length > 1) ||
+                  (n.data.kind === "item" && n.data.item.action === "ignored")
+                }
+                isRelevant={(n) =>
+                  n.data.kind === "destination" ||
+                  (n.data.kind === "item" && n.data.item.action !== "unchanged")
+                }
+                renderRow={(n) => (
+                  <ImportTreeRow row={n.data} onResolveConflict={resolveConflict} />
+                )}
+              />
+            </div>
+          ))}
+        </VStack>
+        <DialogFooter
+          leftSlot={
+            footerNote !== "" ? (
+              <div className="text-xs text-text-subtle">{footerNote}</div>
+            ) : undefined
+          }
+          actions={[
+            {
+              label: "Back",
+              disabled: isLoading,
+              onClick: () => {
+                setPlan(null);
+                setItems([]);
+              },
+            },
+            {
+              label: isLoading
+                ? "Importing"
+                : changeCount > 0
+                  ? `Apply ${changeCount} ${changeCount === 1 ? "Change" : "Changes"}`
+                  : "Done",
+              color: "primary",
+              isLoading,
+              onClick: handleCommit,
+            },
+          ]}
         />
-        <Button
-          color="primary"
-          disabled={trimmedSource === "" || isLoading}
-          isLoading={isLoading}
+      </>
+    );
+  }
+
+  const destinationPicker = (
+    <HStack
+      space={2}
+      alignItems="center"
+      className={classNames(workspaces.length === 0 && "hidden")}
+    >
+      <Select
+        name="import-destination-kind"
+        label="Import into"
+        labelPosition="left"
+        size="sm"
+        value={destinationKind}
+        onChange={setDestinationChoice}
+        options={[
+          { value: "new", label: "New Workspace" },
+          ...(currentWorkspace != null
+            ? [{ value: "current" as const, label: "Current Workspace" }]
+            : []),
+          { value: "other", label: "Other Workspace" },
+        ]}
+      />
+      {destinationKind === "other" && (
+        <Select
+          name="import-destination-workspace"
+          label="Workspace"
+          hideLabel
           size="sm"
-          onClick={handleImport}
-        >
-          {isLoading ? "Importing" : "Import"}
-        </Button>
+          value={otherWorkspaceId ?? ""}
+          onChange={(id) => setOtherWorkspaceId(id === "" ? null : id)}
+          filterable
+          options={[
+            { value: "", label: "Select a workspace" },
+            ...workspaces
+              .filter((w) => w.id !== currentWorkspace?.id)
+              .map((w) => ({ value: w.id, label: w.name })),
+          ]}
+        />
+      )}
+    </HStack>
+  );
+
+  return (
+    <>
+      <VStack space={4} className="h-full pb-4">
+        <CommercialUseBanner source="data-import" title="Importing work data?" />
+
+        <ImportSourceList
+          sources={sources}
+          detections={detections}
+          disabled={isLoading}
+          onAdd={addSources}
+          onRemove={removeSource}
+          onError={setSourceError}
+        />
+
+        {sourceError != null && (
+          <Banner color="warning">
+            <FormattedError>{errorMessage(sourceError)}</FormattedError>
+          </Banner>
+        )}
+
+        {linkedWorkspace != null && linkedWorkspace.id !== destinationWorkspaceId && (
+          <div className="text-xs text-text-subtle">
+            {sources.length === 1 ? "This source was" : "These sources were"} last imported into{" "}
+            <InlineButton
+              onClick={() => {
+                if (linkedWorkspace.id === currentWorkspace?.id) {
+                  setDestinationChoice("current");
+                } else {
+                  setDestinationChoice("other");
+                  setOtherWorkspaceId(linkedWorkspace.id);
+                }
+              }}
+            >
+              {linkedWorkspace.name}
+            </InlineButton>
+          </div>
+        )}
       </VStack>
-    </VStack>
+      <DialogFooter
+        leftSlot={destinationPicker}
+        actions={[
+          { label: "Cancel", disabled: isLoading, onClick: cancel },
+          {
+            label: isLoading ? "Analyzing" : "Preview Import",
+            color: "primary",
+            disabled:
+              sources.length === 0 ||
+              !allDetected ||
+              isLoading ||
+              (destinationKind === "other" && otherWorkspaceId == null),
+            isLoading,
+            onClick: handlePreview,
+          },
+        ]}
+      />
+    </>
+  );
+}
+
+function ImportTreeRow({
+  row,
+  onResolveConflict,
+}: {
+  row: TreeRow;
+  onResolveConflict: (modelId: string, resolution: "keep_mine" | "take_source") => void;
+}) {
+  if (row.kind !== "item") {
+    return (
+      <>
+        {row.kind === "destination" && (
+          <Icon icon="box" size="sm" className="shrink-0 text-text-subtle" />
+        )}
+        <div className="truncate flex-1">{row.label}</div>
+        {row.kind === "destination" && row.isNew && (
+          <ActionChip label="new" help="Created by this import" color="success" />
+        )}
+      </>
+    );
+  }
+
+  const { item } = row;
+  const label = actionLabel(item);
+  return (
+    <>
+      <div className="truncate flex-1">{item.name}</div>
+      {item.action === "conflict" ? (
+        <div className="shrink-0">
+          <SegmentedControl
+            name={`conflict-${item.modelId}`}
+            label={`Resolve conflict for ${item.name}`}
+            hideLabel
+            size="2xs"
+            help={actionHelp(item)}
+            value={item.resolution ?? "keep_mine"}
+            onChange={(v) => onResolveConflict(item.modelId, v)}
+            options={[
+              { value: "keep_mine", label: "Keep mine" },
+              { value: "take_source", label: "Take source" },
+            ]}
+          />
+        </div>
+      ) : (
+        label != null && (
+          <ActionChip label={label} help={actionHelp(item)} color={actionColor(item)} />
+        )
+      )}
+    </>
+  );
+}
+
+function ActionChip({
+  label,
+  help,
+  color,
+}: {
+  label: string;
+  help: string | null;
+  color: ComponentProps<typeof Chip>["color"];
+}) {
+  return (
+    <Chip color={color}>
+      {label}
+      {help != null && <IconTooltip content={help} iconSize="xs" />}
+    </Chip>
+  );
+}
+
+function actionColor(item: ImportPlanItem): ComponentProps<typeof Chip>["color"] {
+  switch (item.action) {
+    case "create":
+      return "success";
+    case "update":
+      return "info";
+    case "delete":
+      return "danger";
+    case "keep_local":
+      return item.selected ? "warning" : "default";
+    case "unchanged":
+    case "conflict":
+    case "ignored":
+      return "default";
+  }
+}
+
+function actionLabel(item: ImportPlanItem): string | null {
+  switch (item.action) {
+    case "create":
+      return "new";
+    case "update":
+      return "updated";
+    case "delete":
+      return "removed";
+    case "keep_local":
+      return "edited";
+    case "ignored":
+      return "ignored";
+    default:
+      return null;
+  }
+}
+
+function actionHelp(item: ImportPlanItem): string | null {
+  const help = (text: string) =>
+    item.changedFields.length > 0
+      ? `${text} · ${item.changedFields.map(fieldLabel).join(", ")}`
+      : text;
+  switch (item.action) {
+    case "create":
+      return "Not in this workspace yet";
+    case "update":
+      return item.reason === "moved_into_ignored_folder"
+        ? "Moved into a folder that isn't imported. Importing that folder brings it along"
+        : help("Changed in the source since the last import");
+    case "delete":
+      return "Gone from the source since the last import. Checking it deletes it here";
+    case "keep_local":
+      return help("Changed here since the last import. Checking it reverts to the source");
+    case "conflict":
+      return help("Changed here and in the source since the last import");
+    case "ignored":
+      return "Not in this workspace. Imports leave it alone until you check it";
+    default:
+      return null;
+  }
+}
+
+function fieldLabel(field: string): string {
+  return field.replace(/([A-Z])/g, " $1").toLowerCase();
+}
+
+/** Every plan item above `item`, nearest first. */
+function ancestorsOf(item: ImportPlanItem, byId: Map<string, ImportPlanItem>): ImportPlanItem[] {
+  const ancestors: ImportPlanItem[] = [];
+  const seen = new Set<string>();
+  let parentId = item.parentId;
+  while (parentId != null && !seen.has(parentId)) {
+    seen.add(parentId);
+    const parent = byId.get(parentId);
+    if (parent == null) break;
+    ancestors.push(parent);
+    parentId = parent.parentId;
+  }
+  return ancestors;
+}
+
+/**
+ * A row of the preview tree. Most are plan items, but the destination workspace and the group the
+ * workspace's environments sit in are headings: they aggregate their children and decide nothing
+ * themselves.
+ */
+type TreeRow =
+  | { kind: "destination"; label: string; isNew: boolean }
+  | { kind: "group"; label: string }
+  | { kind: "item"; item: ImportPlanItem };
+
+function buildItemTree(items: ImportPlanItem[]): CheckboxTreeNode<TreeRow>[] {
+  const byId = new Map(items.map((i) => [i.modelId, i]));
+  const childrenOf = new Map<string, ImportPlanItem[]>();
+  const roots: ImportPlanItem[] = [];
+  for (const item of items) {
+    if (item.parentId != null && byId.has(item.parentId)) {
+      const siblings = childrenOf.get(item.parentId) ?? [];
+      siblings.push(item);
+      childrenOf.set(item.parentId, siblings);
+    } else {
+      roots.push(item);
+    }
+  }
+
+  const byKind = (list: ImportPlanItem[]) => [
+    ...list.filter((i) => i.model === "environment"),
+    ...list.filter((i) => i.model === "folder"),
+    ...list.filter((i) => i.model !== "environment" && i.model !== "folder"),
+  ];
+
+  const toNode = (item: ImportPlanItem, seen: Set<string>): CheckboxTreeNode<TreeRow> => ({
+    key: item.modelId,
+    data: { kind: "item", item },
+    children: seen.has(item.modelId)
+      ? []
+      : byKind(childrenOf.get(item.modelId) ?? []).map((c) =>
+          toNode(c, new Set([...seen, item.modelId])),
+        ),
+  });
+
+  // The workspace's environments have nothing to sit under — a sub-environment is a sibling of
+  // the base one, not its child — so a heading groups them into one thing to turn on and off.
+  const environments = roots.filter((i) => i.model === "environment");
+  const others = byKind(roots.filter((i) => i.model !== "environment"));
+  const nodes = others.map((r) => toNode(r, new Set()));
+  if (environments.length === 0) return nodes;
+  return [
+    {
+      key: "group:environments",
+      data: { kind: "group", label: "Variables" },
+      children: environments.map((e) => toNode(e, new Set())),
+    },
+    ...nodes,
+  ];
+}
+
+function collectRows(node: CheckboxTreeNode<TreeRow>): TreeRow[] {
+  return [node.data, ...node.children.flatMap(collectRows)];
+}
+
+/** A folder that isn't there yet, so anything inside it needs it brought in first. */
+function isMissingFolder(item: ImportPlanItem): boolean {
+  return item.model === "folder" && (item.action === "create" || item.action === "ignored");
+}
+
+/**
+ * The plan item a row's checkbox decides, if it decides one. An unchanged resource has nothing to
+ * decide and a conflict is decided by its own control, so neither takes a checkbox — nor rides
+ * along with a parent's.
+ */
+function togglableItem(row: TreeRow): ImportPlanItem | null {
+  if (row.kind !== "item") return null;
+  const { item } = row;
+  return item.action === "unchanged" || item.action === "conflict" ? null : item;
+}
+
+function togglableItems(node: CheckboxTreeNode<TreeRow>): ImportPlanItem[] {
+  return collectRows(node)
+    .map(togglableItem)
+    .filter((i) => i != null);
+}
+
+function nodeCheckedStatus(node: CheckboxTreeNode<TreeRow>): boolean | "indeterminate" | "hidden" {
+  const covered = togglableItems(node);
+  if (covered.length === 0) return "hidden";
+  const selected = covered.filter((i) => i.selected).length;
+  if (selected === covered.length) return true;
+  if (selected === 0) return false;
+  return "indeterminate";
+}
+
+function PreviewRow({ label, value }: { label: string; value: string }) {
+  return (
+    <div className="flex items-start justify-between gap-4 px-3 py-2 text-sm">
+      <span className="text-text-subtle">{label}</span>
+      <span className="text-right font-medium">{value}</span>
+    </div>
   );
 }

apps/yaak-client/components/ImportSourceList.tsx

@@ -0,0 +1,271 @@
+import { platform } from "@yaakapp-internal/platform";
+import { Icon, LoadingIcon } from "@yaakapp-internal/ui";
+import classNames from "classnames";
+import { type KeyboardEvent, type ReactNode, useEffect, useRef, useState } from "react";
+import { Button } from "./core/Button";
+import { IconButton } from "./core/IconButton";
+import { PathList, splitPath } from "./core/PathList";
+import { PlainInput } from "./core/PlainInput";
+
+export interface ImportSourcePath {
+  path: string;
+  kind?: "file" | "folder" | "url";
+}
+
+export type ImportSourceDetection =
+  | { status: "loading" }
+  | { status: "ok"; importer: string }
+  | { status: "error"; message: string };
+
+interface Props {
+  sources: ImportSourcePath[];
+  detections: Record<string, ImportSourceDetection>;
+  disabled?: boolean;
+  onAdd: (sources: ImportSourcePath[]) => void;
+  onRemove: (path: string) => void;
+  onError: (err: unknown) => void;
+}
+
+/** A bare hostname is a URL; local paths need an absolute or explicit relative prefix. */
+export function isImportFilePath(value: string): boolean {
+  return (
+    value.startsWith("/") ||
+    value.startsWith("./") ||
+    value.startsWith("../") ||
+    value.startsWith("~/") ||
+    value.startsWith("\\\\") ||
+    /^[a-zA-Z]:[\\/]/.test(value)
+  );
+}
+
+/** A typed or prefilled path is a URL unless it looks like a local path; kind is left for the host */
+export function toSourcePath(path: string): ImportSourcePath {
+  return { path, kind: isImportFilePath(path) ? undefined : "url" };
+}
+
+export function ImportSourceList({
+  sources,
+  detections,
+  disabled,
+  onAdd,
+  onRemove,
+  onError,
+}: Props) {
+  const ref = useRef<HTMLDivElement>(null);
+  const [isHovering, setIsHovering] = useState(false);
+  const [pathInput, setPathInput] = useState("");
+  const [showPathInput, setShowPathInput] = useState(false);
+  const pathInputRef = useRef<{ focus: () => void }>(null);
+  const trimmedPath = pathInput.trim();
+
+  const openPathInput = () => {
+    setShowPathInput(true);
+    // The add-row menu hands focus back to its trigger as it closes, on a timer, so focus after it
+    setTimeout(() => pathInputRef.current?.focus(), 50);
+  };
+
+  const closePathInput = () => {
+    setPathInput("");
+    setShowPathInput(false);
+  };
+
+  const addPath = () => {
+    if (!trimmedPath || disabled) return;
+    onAdd([toSourcePath(trimmedPath)]);
+    closePathInput();
+  };
+
+  useEffect(() => {
+    if (disabled) return;
+    return platform.window.onDragDrop((event) => {
+      if (event.type === "leave") {
+        setIsHovering(false);
+        return;
+      }
+      const rect = ref.current?.getBoundingClientRect();
+      const { x, y } = event.position;
+      const isOver =
+        rect != null && x >= rect.left && x <= rect.right && y >= rect.top && y <= rect.bottom;
+      if (event.type === "drop") {
+        if (isOver) onAdd(event.paths.map((path) => ({ path })));
+        setIsHovering(false);
+      } else {
+        setIsHovering(isOver);
+      }
+    });
+  }, [disabled, onAdd]);
+
+  const pick = async (directory: boolean) => {
+    try {
+      const selected = await platform.dialog.open({
+        title: directory ? "Select Import Folder" : "Select Import Files",
+        multiple: true,
+        directory,
+      });
+      if (selected == null) return;
+      onAdd(selected.map((path) => ({ path, kind: directory ? "folder" : "file" })));
+    } catch (err) {
+      onError(err);
+    }
+  };
+
+  const handlePathKeyDown = (event: KeyboardEvent) => {
+    if (event.key === "Enter") {
+      event.preventDefault();
+      addPath();
+    } else if (event.key === "Escape") {
+      event.stopPropagation();
+      closePathInput();
+    }
+  };
+
+  const pathInputEl = (
+    <PlainInput
+      ref={pathInputRef}
+      label="URL or file path"
+      hideLabel
+      size="sm"
+      autoFocus
+      disabled={disabled}
+      placeholder="Paste a URL or a file path"
+      onChange={setPathInput}
+      onKeyDownCapture={handlePathKeyDown}
+      rightSlot={
+        <div className="flex items-center gap-1 my-1 mr-1">
+          {trimmedPath !== "" && (
+            <Button size="xs" variant="border" onClick={addPath}>
+              Add
+            </Button>
+          )}
+          <IconButton size="xs" icon="x" title="Cancel" onClick={closePathInput} />
+        </div>
+      }
+    />
+  );
+
+  if (sources.length === 0) {
+    return (
+      <div className="flex-1 flex flex-col gap-2">
+        <div
+          ref={ref}
+          className={classNames(
+            "flex-1 rounded-lg border min-h-28 flex flex-col items-center justify-center gap-2 px-4 py-5 text-center text-text-subtle",
+            isHovering ? "border-notice bg-surface-highlight" : "border-dashed border-border",
+          )}
+        >
+          <Icon icon="folder_input" className="text-text-subtlest w-10! h-10! mb-1" />
+          {isHovering ? (
+            <span>Drop to add</span>
+          ) : (
+            <span>
+              Choose{" "}
+              <InlineButton disabled={disabled} onClick={() => pick(false)}>
+                files
+              </InlineButton>
+              , a{" "}
+              <InlineButton disabled={disabled} onClick={() => pick(true)}>
+                folder
+              </InlineButton>
+              , or a{" "}
+              <InlineButton disabled={disabled} onClick={openPathInput}>
+                URL
+              </InlineButton>
+              , or drag them here
+            </span>
+          )}
+          <span className="text-xs text-text-subtlest">
+            Supports OpenAPI, Swagger, Postman, Insomnia, Bruno, curl, and Yaak exports
+          </span>
+        </div>
+        {showPathInput && pathInputEl}
+      </div>
+    );
+  }
+
+  return (
+    <PathList
+      ref={ref}
+      hovering={isHovering}
+      disabled={disabled}
+      onRemove={onRemove}
+      addLabel="Add files, a folder, or a URL"
+      addHint="or drop them here"
+      addItems={[
+        { label: "Files", icon: "file", onSelect: () => pick(false) },
+        { label: "Folder", icon: "folder", onSelect: () => pick(true) },
+        { label: "URL or file path", icon: "globe", onSelect: openPathInput },
+      ]}
+      items={sources.map((source) => {
+        const detection = detections[source.path];
+        return {
+          path: source.path,
+          icon: sourceIcon(source),
+          failed: detection?.status === "error",
+          subtitle: <DetectionSubtitle path={source.path} detection={detection} />,
+        };
+      })}
+    >
+      {showPathInput && pathInputEl}
+    </PathList>
+  );
+}
+
+function DetectionSubtitle({
+  path,
+  detection,
+}: {
+  path: string;
+  detection: ImportSourceDetection | undefined;
+}) {
+  const { parent } = splitPath(path);
+  if (detection?.status === "loading") {
+    return (
+      <>
+        <LoadingIcon size="xs" />
+        Detecting format
+      </>
+    );
+  }
+  if (detection?.status === "error") return detection.message;
+  return (
+    <>
+      {detection?.status === "ok" && <span>{detection.importer}</span>}
+      {detection?.status === "ok" && parent !== "" && <span>·</span>}
+      {parent !== "" && <span className="truncate font-mono">{parent}</span>}
+    </>
+  );
+}
+
+function sourceIcon({ kind }: ImportSourcePath) {
+  switch (kind) {
+    case "url":
+      return "globe";
+    case "folder":
+      return "folder";
+    case "file":
+      return "file";
+    case undefined:
+      return "import";
+  }
+}
+
+export function InlineButton({
+  children,
+  disabled,
+  onClick,
+}: {
+  children: ReactNode;
+  disabled?: boolean;
+  onClick: () => void;
+}) {
+  return (
+    <button
+      type="button"
+      disabled={disabled}
+      className="underline decoration-current/40 underline-offset-3 hocus:decoration-current disabled:opacity-disabled"
+      onClick={onClick}
+    >
+      {children}
+    </button>
+  );
+}

apps/yaak-client/components/ModelSettingsEditor.tsx

@@ -2,7 +2,9 @@ import type {
   Folder,
   GrpcRequest,
   HttpRequest,
+  HttpVersion,
   InheritedBoolSetting,
+  InheritedHttpVersionSetting,
   InheritedIntSetting,
   WebsocketRequest,
   Workspace,
@@ -13,6 +15,7 @@ import {
   modelSupportsSetting,
   type RequestSettingDefinition,
   SETTING_FOLLOW_REDIRECTS,
+  SETTING_HTTP_VERSION,
   SETTING_REQUEST_MESSAGE_SIZE,
   SETTING_REQUEST_TIMEOUT,
   SETTING_SEND_COOKIES,
@@ -21,6 +24,7 @@ import {
 } from "../lib/requestSettings";
 import { Checkbox } from "./core/Checkbox";
 import { PlainInput } from "./core/PlainInput";
+import { Select } from "./core/Select";
 import {
   SettingOverrideRow,
   SettingRow,
@@ -38,37 +42,21 @@ interface Props {
   model: ModelWithSettings;
 }
 
-type ModelWithSettings =
-  | Workspace
-  | Folder
-  | HttpRequest
-  | WebsocketRequest
-  | GrpcRequest;
+type ModelWithSettings = Workspace | Folder | HttpRequest | WebsocketRequest | GrpcRequest;
 type ModelWithHttpSettings = Workspace | Folder | HttpRequest;
-type ModelWithTlsSettings =
-  | Workspace
-  | Folder
-  | HttpRequest
-  | WebsocketRequest
-  | GrpcRequest;
-type ModelWithCookieSettings =
-  | Workspace
-  | Folder
-  | HttpRequest
-  | WebsocketRequest;
-type ModelWithMessageSizeSettings =
-  | Workspace
-  | Folder
-  | WebsocketRequest
-  | GrpcRequest;
+type ModelWithTlsSettings = Workspace | Folder | HttpRequest | WebsocketRequest | GrpcRequest;
+type ModelWithCookieSettings = Workspace | Folder | HttpRequest | WebsocketRequest;
+type ModelWithMessageSizeSettings = Workspace | Folder | WebsocketRequest | GrpcRequest;
 type BooleanSetting = boolean | InheritedBoolSetting;
 type IntegerSetting = number | InheritedIntSetting;
+type HttpVersionSetting = HttpVersion | InheritedHttpVersionSetting;
 type CookieSettingsPatch = {
   settingSendCookies?: ModelWithCookieSettings["settingSendCookies"];
   settingStoreCookies?: ModelWithCookieSettings["settingStoreCookies"];
 };
 type HttpSettingsPatch = {
   settingFollowRedirects?: ModelWithHttpSettings["settingFollowRedirects"];
+  settingHttpVersion?: ModelWithHttpSettings["settingHttpVersion"];
   settingRequestTimeout?: ModelWithHttpSettings["settingRequestTimeout"];
 };
 type TlsSettingsPatch = {
@@ -78,10 +66,7 @@ type MessageSizeSettingsPatch = {
   settingRequestMessageSize?: ModelWithMessageSizeSettings["settingRequestMessageSize"];
 };
 
-export function ModelSettingsEditor({
-  model,
-  showSectionTitles = false,
-}: Props) {
+export function ModelSettingsEditor({ model, showSectionTitles = false }: Props) {
   const ancestors = useModelAncestors(model);
   const supportsHttpSettings = modelSupportsHttpSettings(model);
   const supportsCookieSettings = modelSupportsCookieSettings(model);
@@ -154,12 +139,26 @@ export function ModelSettingsEditor({
               }
             />
           )}
+          {supportsHttpSettings && (
+            <HttpVersionSettingRow
+              settingDefinition={SETTING_HTTP_VERSION}
+              setting={model.settingHttpVersion}
+              inheritedValue={resolveInheritedValue(
+                ancestors,
+                SETTING_HTTP_VERSION.modelKey,
+                model.settingHttpVersion,
+              )}
+              onChange={(settingHttpVersion) =>
+                patchHttpSettings(model, {
+                  settingHttpVersion,
+                })
+              }
+            />
+          )}
         </SettingsSection>
       )}
       {supportsCookieSettings && (
-        <SettingsSection
-          title={supportsTlsSettings || showSectionTitles ? "Cookies" : null}
-        >
+        <SettingsSection title={supportsTlsSettings || showSectionTitles ? "Cookies" : null}>
           <BooleanSettingRow
             settingDefinition={SETTING_SEND_COOKIES}
             setting={model.settingSendCookies}
@@ -195,7 +194,7 @@ export function ModelSettingsEditor({
 }
 
 export function countOverriddenSettings(model: ModelWithSettings) {
-  const settings: (BooleanSetting | IntegerSetting)[] = [];
+  const settings: (BooleanSetting | IntegerSetting | HttpVersionSetting)[] = [];
 
   if (modelSupportsCookieSettings(model)) {
     settings.push(model.settingSendCookies, model.settingStoreCookies);
@@ -204,22 +203,22 @@ export function countOverriddenSettings(model: ModelWithSettings) {
   settings.push(model.settingValidateCertificates);
 
   if (modelSupportsHttpSettings(model)) {
-    settings.push(model.settingFollowRedirects, model.settingRequestTimeout);
+    settings.push(
+      model.settingFollowRedirects,
+      model.settingRequestTimeout,
+      model.settingHttpVersion,
+    );
   }
 
   if (modelSupportsMessageSizeSettings(model)) {
     settings.push(model.settingRequestMessageSize);
   }
 
-  return settings.filter(
-    (setting) => isInheritedSetting(setting) && setting.enabled === true,
-  ).length;
+  return settings.filter((setting) => isInheritedSetting(setting) && setting.enabled === true)
+    .length;
 }
 
-function patchCookieSettings(
-  model: ModelWithCookieSettings,
-  patch: Partial<CookieSettingsPatch>,
-) {
+function patchCookieSettings(model: ModelWithCookieSettings, patch: Partial<CookieSettingsPatch>) {
   switch (model.model) {
     case "workspace":
       return patchModel(model, patch as Partial<Workspace>);
@@ -232,10 +231,7 @@ function patchCookieSettings(
   }
 }
 
-function patchHttpSettings(
-  model: ModelWithHttpSettings,
-  patch: Partial<HttpSettingsPatch>,
-) {
+function patchHttpSettings(model: ModelWithHttpSettings, patch: Partial<HttpSettingsPatch>) {
   switch (model.model) {
     case "workspace":
       return patchModel(model, patch as Partial<Workspace>);
@@ -246,10 +242,7 @@ function patchHttpSettings(
   }
 }
 
-function patchTlsSettings(
-  model: ModelWithTlsSettings,
-  patch: Partial<TlsSettingsPatch>,
-) {
+function patchTlsSettings(model: ModelWithTlsSettings, patch: Partial<TlsSettingsPatch>) {
   switch (model.model) {
     case "workspace":
       return patchModel(model, patch as Partial<Workspace>);
@@ -280,21 +273,15 @@ function patchMessageSizeSettings(
   }
 }
 
-function modelSupportsHttpSettings(
-  model: ModelWithSettings,
-): model is ModelWithHttpSettings {
+function modelSupportsHttpSettings(model: ModelWithSettings): model is ModelWithHttpSettings {
   return modelSupportsSetting(model, SETTING_REQUEST_TIMEOUT);
 }
 
-function modelSupportsCookieSettings(
-  model: ModelWithSettings,
-): model is ModelWithCookieSettings {
+function modelSupportsCookieSettings(model: ModelWithSettings): model is ModelWithCookieSettings {
   return modelSupportsSetting(model, SETTING_SEND_COOKIES);
 }
 
-function modelSupportsTlsSettings(
-  model: ModelWithSettings,
-): model is ModelWithTlsSettings {
+function modelSupportsTlsSettings(model: ModelWithSettings): model is ModelWithTlsSettings {
   return modelSupportsSetting(model, SETTING_VALIDATE_CERTIFICATES);
 }
 
@@ -317,11 +304,7 @@ function BooleanSettingRow({
 }) {
   const inherited = isInheritedSetting(setting);
   const overridden = inherited ? setting.enabled === true : false;
-  const value = inherited
-    ? overridden
-      ? setting.value
-      : inheritedValue
-    : setting;
+  const value = inherited ? (overridden ? setting.value : inheritedValue) : setting;
 
   if (!inherited) {
     return (
@@ -352,6 +335,63 @@ function BooleanSettingRow({
   );
 }
 
+const HTTP_VERSION_OPTIONS: { label: string; value: HttpVersion }[] = [
+  { label: "Automatic", value: "auto" },
+  { label: "HTTP/1.1", value: "http1" },
+  { label: "HTTP/2", value: "http2" },
+];
+
+function HttpVersionSettingRow({
+  inheritedValue,
+  setting,
+  settingDefinition,
+  onChange,
+}: {
+  inheritedValue: HttpVersion;
+  setting: HttpVersionSetting;
+  settingDefinition: RequestSettingDefinition<"settingHttpVersion">;
+  onChange: (setting: HttpVersionSetting) => void;
+}) {
+  const inherited = isInheritedSetting(setting);
+  const overridden = inherited ? setting.enabled === true : false;
+  const value = inherited ? (overridden ? setting.value : inheritedValue) : setting;
+
+  if (!inherited) {
+    return (
+      <SettingRow title={settingDefinition.title} description={settingDefinition.description}>
+        <Select
+          hideLabel
+          name={settingDefinition.modelKey}
+          label={settingDefinition.title}
+          size="sm"
+          value={value}
+          options={HTTP_VERSION_OPTIONS}
+          onChange={(value) => onChange(value)}
+        />
+      </SettingRow>
+    );
+  }
+
+  return (
+    <SettingOverrideRow
+      title={settingDefinition.title}
+      description={settingDefinition.description}
+      overridden={overridden}
+      onResetOverride={() => onChange({ ...setting, enabled: false })}
+    >
+      <Select
+        hideLabel
+        name={settingDefinition.modelKey}
+        label={settingDefinition.title}
+        size="sm"
+        value={value}
+        options={HTTP_VERSION_OPTIONS}
+        onChange={(value) => onChange({ ...setting, enabled: true, value })}
+      />
+    </SettingOverrideRow>
+  );
+}
+
 function IntegerSettingRow({
   inheritedValue,
   setting,
@@ -365,18 +405,11 @@ function IntegerSettingRow({
 }) {
   const inherited = isInheritedSetting(setting);
   const overridden = inherited ? setting.enabled === true : false;
-  const value = inherited
-    ? overridden
-      ? setting.value
-      : inheritedValue
-    : setting;
+  const value = inherited ? (overridden ? setting.value : inheritedValue) : setting;
 
   if (!inherited) {
     return (
-      <SettingRow
-        title={settingDefinition.title}
-        description={settingDefinition.description}
-      >
+      <SettingRow title={settingDefinition.title} description={settingDefinition.description}>
         <NumberUnitInput
           name={settingDefinition.modelKey}
           label={settingDefinition.title}
@@ -429,20 +462,13 @@ function MessageSizeSettingRow({
 }) {
   const inherited = isInheritedSetting(setting);
   const overridden = inherited ? setting.enabled === true : false;
-  const value = inherited
-    ? overridden
-      ? setting.value
-      : inheritedValue
-    : setting;
+  const value = inherited ? (overridden ? setting.value : inheritedValue) : setting;
   const displayValue = formatMegabytes(value);
   const placeholder = "0";
 
   if (!inherited) {
     return (
-      <SettingRow
-        title={settingDefinition.title}
-        description={settingDefinition.description}
-      >
+      <SettingRow title={settingDefinition.title} description={settingDefinition.description}>
         <MessageSizeInput
           name={settingDefinition.modelKey}
           label={settingDefinition.title}
@@ -567,13 +593,18 @@ function resolveInheritedValue(
   key: BooleanWorkspaceSettingKey,
   fallback: BooleanSetting,
 ): boolean;
+function resolveInheritedValue(
+  ancestors: (Folder | Workspace)[],
+  key: "settingHttpVersion",
+  fallback: HttpVersionSetting,
+): HttpVersion;
 function resolveInheritedValue(
   ancestors: (Folder | Workspace)[],
   key: keyof WorkspaceSettings,
-  fallback: BooleanSetting | IntegerSetting,
+  fallback: BooleanSetting | IntegerSetting | HttpVersionSetting,
 ) {
   for (const ancestor of ancestors) {
-    const setting = ancestor[key] as BooleanSetting | IntegerSetting;
+    const setting = ancestor[key] as BooleanSetting | IntegerSetting | HttpVersionSetting;
     if (isInheritedSetting(setting)) {
       if (setting.enabled === true) {
         return setting.value;
@@ -589,6 +620,7 @@ function resolveInheritedValue(
 type WorkspaceSettings = Pick<
   Workspace,
   | "settingFollowRedirects"
+  | "settingHttpVersion"
   | "settingRequestMessageSize"
   | "settingRequestTimeout"
   | "settingSendCookies"
@@ -598,14 +630,12 @@ type WorkspaceSettings = Pick<
 
 type BooleanWorkspaceSettingKey = Exclude<
   keyof WorkspaceSettings,
-  "settingRequestTimeout" | "settingRequestMessageSize"
+  "settingRequestTimeout" | "settingRequestMessageSize" | "settingHttpVersion"
 >;
 
 function formatMegabytes(bytes: number) {
   const megabytes = bytes / BYTES_PER_MB;
-  return Number.isInteger(megabytes)
-    ? `${megabytes}`
-    : megabytes.toFixed(3).replace(/\.?0+$/, "");
+  return Number.isInteger(megabytes) ? `${megabytes}` : megabytes.toFixed(3).replace(/\.?0+$/, "");
 }
 
 function parseMegabytes(value: string) {
@@ -626,9 +656,5 @@ function isValidInteger(value: string) {
 function isValidMegabytes(value: string) {
   if (value === "") return true;
   const megabytes = Number(value);
-  return (
-    Number.isFinite(megabytes) &&
-    megabytes >= 0 &&
-    megabytes <= MAX_MESSAGE_SIZE_MB
-  );
+  return Number.isFinite(megabytes) && megabytes >= 0 && megabytes <= MAX_MESSAGE_SIZE_MB;
 }

apps/yaak-client/components/Onboarding.tsx

@@ -0,0 +1,212 @@
+import type { Color } from "@yaakapp-internal/plugins";
+import { platform } from "@yaakapp-internal/platform";
+import { settingsAtom } from "@yaakapp-internal/models";
+import { HeaderSize, Heading, Icon, type IconProps, LoadingIcon } from "@yaakapp-internal/ui";
+import classNames from "classnames";
+import { useAtomValue } from "jotai";
+import { useState } from "react";
+import { openWorkspaceFromSyncDir } from "../commands/openWorkspaceFromSyncDir";
+import { showDialog } from "../lib/dialog";
+import { importData } from "../lib/importData";
+import {
+  createExampleWorkspace,
+  createFreshWorkspace,
+  type OnboardingChoice,
+  recordOnboardingChoice,
+} from "../lib/onboarding";
+import { showErrorToast } from "../lib/toast";
+import { CloneGitRepositoryDialog } from "./CloneGitRepositoryDialog";
+import { Button } from "./core/Button";
+
+/** Shown instead of a workspace when there are none. */
+export function Onboarding() {
+  const settings = useAtomValue(settingsAtom);
+  const { capabilities } = platform;
+  const canImport = capabilities.plugins;
+  const showAlreadyUsing = capabilities.localFiles || capabilities.git || canImport;
+  const [busy, setBusy] = useState<OnboardingChoice | null>(null);
+
+  const choose = (choice: OnboardingChoice, run: () => Promise<void> | void) => async () => {
+    recordOnboardingChoice(choice);
+    setBusy(choice);
+    try {
+      await run();
+    } catch (err) {
+      showErrorToast({
+        id: "onboarding-failed",
+        title: "Something went wrong",
+        message: String(err),
+      });
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  return (
+    <div className="grid grid-rows-[auto_minmax(0,1fr)] h-full w-full">
+      <HeaderSize
+        data-tauri-drag-region
+        size="lg"
+        className="x-theme-appHeader bg-surface"
+        osType={platform.osType()}
+        hideWindowControls={settings.hideWindowControls}
+        useNativeTitlebar={settings.useNativeTitlebar}
+        interfaceScale={settings.interfaceScale}
+      />
+      <div className="overflow-auto px-6 py-10 grid">
+        <div className="m-auto w-full max-w-lg flex flex-col gap-7">
+          <div className="flex flex-col gap-1.5">
+            <Heading>How would you like to get started?</Heading>
+            <p className="text-text-subtle">
+              {canImport
+                ? "Bring over existing work, try a real API, or start fresh."
+                : "Try a real API, or start fresh."}
+            </p>
+          </div>
+
+          <div className="flex flex-col gap-2">
+            {canImport && (
+              <StartOption
+                color="primary"
+                icon="folder_input"
+                title="Migrate from another tool"
+                description="Postman, Insomnia, Bruno, OpenAPI, or curl"
+                busy={busy === "import"}
+                disabled={busy != null}
+                onClick={choose("import", () => importData.mutateAsync())}
+              />
+            )}
+            <StartOption
+              color="info"
+              icon="flask"
+              title="Try Yaak with a real API"
+              description="Ready-made requests you can send right away"
+              busy={busy === "example"}
+              disabled={busy != null}
+              onClick={choose("example", createExampleWorkspace)}
+            />
+            <StartOption
+              color="success"
+              icon="plus"
+              title="Start fresh"
+              description="An empty workspace for your first request"
+              busy={busy === "fresh"}
+              disabled={busy != null}
+              onClick={choose("fresh", createFreshWorkspace)}
+            />
+          </div>
+
+          {showAlreadyUsing && (
+            <div className="pt-5 border-t border-dashed border-border-subtle flex flex-col items-start gap-2.5">
+              <span className="text-sm text-text-subtle">Already using Yaak?</span>
+              <div className="flex flex-wrap gap-2">
+                {capabilities.localFiles && (
+                  <Button
+                    size="xs"
+                    variant="border"
+                    color="secondary"
+                    leftSlot={<Icon icon="folder_open" size="sm" />}
+                    disabled={busy != null}
+                    onClick={choose("open_folder", async () => {
+                      const dir = await platform.dialog.open({
+                        title: "Select Workspace Directory",
+                        directory: true,
+                        multiple: false,
+                      });
+                      if (dir == null) return;
+                      await openWorkspaceFromSyncDir.mutateAsync(dir);
+                    })}
+                  >
+                    Open folder
+                  </Button>
+                )}
+                {capabilities.git && (
+                  <Button
+                    size="xs"
+                    variant="border"
+                    color="secondary"
+                    leftSlot={<Icon icon="git_branch" size="sm" />}
+                    disabled={busy != null}
+                    onClick={choose("clone_git", () => {
+                      showDialog({
+                        id: "clone-git-repository",
+                        size: "md",
+                        title: "Clone Git Repository",
+                        render: ({ hide }) => <CloneGitRepositoryDialog hide={hide} />,
+                      });
+                    })}
+                  >
+                    Clone repository
+                  </Button>
+                )}
+                {canImport && (
+                  <Button
+                    size="xs"
+                    variant="border"
+                    color="secondary"
+                    leftSlot={<Icon icon="import" size="sm" />}
+                    disabled={busy != null}
+                    onClick={choose("import_yaak", () => importData.mutateAsync())}
+                  >
+                    Import
+                  </Button>
+                )}
+              </div>
+            </div>
+          )}
+        </div>
+      </div>
+    </div>
+  );
+}
+
+function StartOption({
+  color,
+  icon,
+  title,
+  description,
+  onClick,
+  busy,
+  disabled,
+}: {
+  color: Color;
+  icon: IconProps["icon"];
+  title: string;
+  description: string;
+  onClick: () => void;
+  busy: boolean;
+  disabled: boolean;
+}) {
+  return (
+    <button
+      type="button"
+      disabled={disabled}
+      onClick={onClick}
+      className={classNames(
+        "group w-full text-left rounded-lg px-3 py-2.5 border border-border-subtle",
+        "grid grid-cols-[auto_minmax(0,1fr)_auto] items-center gap-3.5",
+        "enabled:hocus:bg-surface-highlight/50 enabled:hocus:border-border",
+        "outline-border-focus focus-visible:outline-2",
+        disabled && !busy && "opacity-disabled",
+      )}
+    >
+      {/* The banner theme tints this tile from the theme's own color for each option */}
+      <div
+        className={classNames(
+          `x-theme-banner--${color}`,
+          "size-10 rounded-md bg-surface-highlight grid place-items-center",
+        )}
+      >
+        {busy ? <LoadingIcon size="sm" /> : <Icon icon={icon} color={color} size="md" />}
+      </div>
+      <div className="min-w-0">
+        <div className="font-semibold text-text">{title}</div>
+        <div className="text-sm text-text-subtle">{description}</div>
+      </div>
+      <Icon
+        icon="chevron_right"
+        className="text-text-subtlest group-enabled:group-hover:text-text-subtle group-enabled:group-focus-visible:text-text-subtle"
+      />
+    </button>
+  );
+}

apps/yaak-client/components/RedirectToLatestWorkspace.tsx

@@ -7,6 +7,7 @@ import { getRecentRequests } from "../hooks/useRecentRequests";
 import { useRecentWorkspaces } from "../hooks/useRecentWorkspaces";
 import { fireAndForget } from "../lib/fireAndForget";
 import { router } from "../lib/router";
+import { Onboarding } from "./Onboarding";
 
 export function RedirectToLatestWorkspace() {
   const workspaces = useAtomValue(workspacesAtom);
@@ -14,10 +15,6 @@ export function RedirectToLatestWorkspace() {
 
   useEffect(() => {
     if (workspaces.length === 0 || recentWorkspaces == null) {
-      console.log("No workspaces found to redirect to. Skipping.", {
-        workspaces,
-        recentWorkspaces,
-      });
       return;
     }
 
@@ -34,11 +31,21 @@ export function RedirectToLatestWorkspace() {
           request_id: requestId,
         };
 
+        // Whatever created the first workspace may have already navigated into it
+        const currentId = router.history.location.pathname.match(/^\/workspaces\/([^/]+)/)?.[1];
+        if (workspaces.some((w) => w.id === currentId)) return;
+
         console.log("Redirecting to workspace", params, search);
         await router.navigate({ to: "/workspaces/$workspaceId", params, search });
       })(),
     );
   }, [recentWorkspaces, workspaces, workspaces.length]);
 
+  // The global models are loaded before the router mounts, so an empty list is a real
+  // first launch (or the last workspace was just deleted), not a store still loading
+  if (workspaces.length === 0) {
+    return <Onboarding />;
+  }
+
   return null;
 }

apps/yaak-client/components/Sidebar.tsx

@@ -941,10 +941,14 @@ const sidebarTreeAtom = atom<
 
     if (node.children != null) {
       childItems.sort((a, b) => {
-        if (a.sortPriority === b.sortPriority) {
-          return a.updatedAt > b.updatedAt ? 1 : -1;
+        if (a.sortPriority !== b.sortPriority) {
+          return a.sortPriority - b.sortPriority;
         }
-        return a.sortPriority - b.sortPriority;
+        // Keep equal-priority items in a stable order when they are edited.
+        if (a.createdAt !== b.createdAt) {
+          return a.createdAt > b.createdAt ? 1 : -1;
+        }
+        return a.id === b.id ? 0 : a.id > b.id ? 1 : -1;
       });
 
       for (const item of childItems) {

apps/yaak-client/components/SwitchWorkspaceDialog.tsx

@@ -1,11 +1,11 @@
 import type { Workspace } from "@yaakapp-internal/models";
 import { patchModel, settingsAtom } from "@yaakapp-internal/models";
-import { HStack, Icon, InlineCode, VStack } from "@yaakapp-internal/ui";
+import { Icon, InlineCode, VStack } from "@yaakapp-internal/ui";
 import { useAtomValue } from "jotai";
 import { useState } from "react";
 import { switchWorkspace } from "../commands/switchWorkspace";
-import { Button } from "./core/Button";
 import { Checkbox } from "./core/Checkbox";
+import { DialogFooter } from "./core/Dialog";
 
 interface Props {
   hide: () => void;
@@ -16,45 +16,33 @@ export function SwitchWorkspaceDialog({ hide, workspace }: Props) {
   const settings = useAtomValue(settingsAtom);
   const [remember, setRemember] = useState<boolean>(false);
 
+  const open = async (inNewWindow: boolean) => {
+    hide();
+    switchWorkspace.mutate({ workspaceId: workspace.id, inNewWindow });
+    if (remember) {
+      await patchModel(settings, { openWorkspaceNewWindow: inNewWindow });
+    }
+  };
+
   return (
     <VStack space={3}>
       <p>
         Where would you like to open <InlineCode>{workspace.name}</InlineCode>?
       </p>
-      <HStack space={2} justifyContent="start" className="flex-row-reverse">
-        <Button
-          className="focus"
-          color="primary"
-          onClick={async () => {
-            hide();
-            switchWorkspace.mutate({ workspaceId: workspace.id, inNewWindow: false });
-            if (remember) {
-              await patchModel(settings, { openWorkspaceNewWindow: false });
-            }
-          }}
-        >
-          This Window
-        </Button>
-        <Button
-          className="focus"
-          color="secondary"
-          rightSlot={<Icon icon="external_link" />}
-          onClick={async () => {
-            hide();
-            switchWorkspace.mutate({ workspaceId: workspace.id, inNewWindow: true });
-            if (remember) {
-              await patchModel(settings, { openWorkspaceNewWindow: true });
-            }
-          }}
-        >
-          New Window
-        </Button>
-      </HStack>
       {settings && (
-        <HStack justifyContent="end">
-          <Checkbox checked={remember} title="Remember my choice" onChange={setRemember} />
-        </HStack>
+        <Checkbox checked={remember} title="Remember my choice" onChange={setRemember} />
       )}
+      <DialogFooter
+        inline
+        actions={[
+          {
+            label: "New Window",
+            rightSlot: <Icon icon="external_link" />,
+            onClick: () => open(true),
+          },
+          { label: "This Window", color: "primary", autoFocus: true, onClick: () => open(false) },
+        ]}
+      />
     </VStack>
   );
 }

apps/yaak-client/components/TemplateFunctionDialog.tsx

@@ -11,7 +11,7 @@ import type { FnArg, Tokens } from "@yaakapp-internal/templates";
 import { parseTemplate } from "@yaakapp-internal/templates";
 import { HStack, InlineCode, LoadingIcon, useDebouncedValue } from "@yaakapp-internal/ui";
 import classNames from "classnames";
-import { useEffect, useMemo, useState } from "react";
+import { useEffect, useId, useMemo, useState } from "react";
 import { activeWorkspaceAtom } from "../hooks/useActiveWorkspace";
 import { useRenderTemplate } from "../hooks/useRenderTemplate";
 import { useTemplateFunctionConfig } from "../hooks/useTemplateFunctionConfig";
@@ -24,7 +24,7 @@ import { showDialog } from "../lib/dialog";
 import { convertTemplateToInsecure } from "../lib/encryption";
 import { jotaiStore } from "../lib/jotai";
 import { setupOrConfigureEncryption } from "../lib/setupOrConfigureEncryption";
-import { Button } from "./core/Button";
+import { DialogFooter } from "./core/Dialog";
 import { collectArgumentValues } from "./core/Editor/twig/util";
 import { IconButton } from "./core/IconButton";
 import { PlainInput } from "./core/PlainInput";
@@ -91,6 +91,7 @@ function InitializedTemplateFunctionDialog({
   const previewType = ogPreviewType == null ? "live" : ogPreviewType;
   const [showSecretsInPreview, toggleShowSecretsInPreview] = useToggle(false);
   const [argValues, setArgValues] = useState<Record<string, string | boolean>>(initialArgValues);
+  const formId = useId();
 
   const tokens: Tokens = useMemo(() => {
     const argTokens: FnArg[] = Object.keys(argValues).map((name) => ({
@@ -160,13 +161,14 @@ function InitializedTemplateFunctionDialog({
 
   return (
     <form
-      className="grid grid-rows-[minmax(0,1fr)_auto_auto] h-full max-h-[90vh]"
+      id={formId}
+      className="grid grid-rows-[minmax(0,1fr)_auto] h-full"
       onSubmit={(e) => {
         e.preventDefault();
         handleDone();
       }}
     >
-      <div className="overflow-y-auto h-full px-6">
+      <div className="overflow-y-auto h-full">
         {name === "secure" ? (
           <PlainInput
             required
@@ -188,75 +190,71 @@ function InitializedTemplateFunctionDialog({
           />
         )}
       </div>
-      <div className="px-6 border-t border-t-border pt-3 pb-6 bg-surface-highlight w-full flex flex-col gap-4">
-        {previewType !== "none" ? (
-          <div className="w-full grid grid-cols-1 grid-rows-[auto_auto]">
-            <HStack space={0.5}>
-              <HStack className="text-sm text-text-subtle" space={1.5}>
-                Rendered Preview
-                {rendered.isLoading && <LoadingIcon size="xs" />}
-              </HStack>
+      {previewType !== "none" ? (
+        <div className="w-full grid grid-cols-1 grid-rows-[auto_auto] border-t border-t-border pt-3">
+          <HStack space={0.5}>
+            <HStack className="text-sm text-text-subtle" space={1.5}>
+              Rendered Preview
+              {rendered.isLoading && <LoadingIcon size="xs" />}
+            </HStack>
+            <IconButton
+              size="xs"
+              iconSize="sm"
+              icon={showSecretsInPreview ? "lock" : "lock_open"}
+              title={showSecretsInPreview ? "Show preview" : "Hide preview"}
+              onClick={toggleShowSecretsInPreview}
+              className={classNames(
+                "ml-auto text-text-subtlest",
+                !dataContainsSecrets && "invisible",
+              )}
+            />
+          </HStack>
+          <div className="relative w-full max-h-40">
+            <InlineCode
+              className={classNames(
+                "block whitespace-pre-wrap select-text! cursor-text max-h-40 overflow-auto hide-scrollbars border-text-subtlest!",
+                tooLarge && "italic text-danger",
+              )}
+            >
+              {rendered.error || tagText.error ? (
+                <em className="text-danger">
+                  {`${rendered.error || tagText.error}`.replace(/^Render Error: /, "")}
+                </em>
+              ) : dataContainsSecrets && !showSecretsInPreview ? (
+                <span className="italic text-text-subtle">
+                  ------ sensitive values hidden ------
+                </span>
+              ) : tooLarge ? (
+                "too large to preview"
+              ) : (
+                rendered.data || <>&nbsp;</>
+              )}
+            </InlineCode>
+            <div className="absolute right-0.5 top-0 bottom-0 flex items-center">
               <IconButton
                 size="xs"
-                iconSize="sm"
-                icon={showSecretsInPreview ? "lock" : "lock_open"}
-                title={showSecretsInPreview ? "Show preview" : "Hide preview"}
-                onClick={toggleShowSecretsInPreview}
-                className={classNames(
-                  "ml-auto text-text-subtlest",
-                  !dataContainsSecrets && "invisible",
-                )}
+                icon="refresh"
+                className="text-text-subtle"
+                title="Refresh preview"
+                spin={rendered.isPending}
+                onClick={() => {
+                  setRenderKey(new Date().toISOString());
+                }}
               />
-            </HStack>
-            <div className="relative w-full max-h-40">
-              <InlineCode
-                className={classNames(
-                  "block whitespace-pre-wrap select-text! cursor-text max-h-40 overflow-auto hide-scrollbars border-text-subtlest!",
-                  tooLarge && "italic text-danger",
-                )}
-              >
-                {rendered.error || tagText.error ? (
-                  <em className="text-danger">
-                    {`${rendered.error || tagText.error}`.replace(/^Render Error: /, "")}
-                  </em>
-                ) : dataContainsSecrets && !showSecretsInPreview ? (
-                  <span className="italic text-text-subtle">
-                    ------ sensitive values hidden ------
-                  </span>
-                ) : tooLarge ? (
-                  "too large to preview"
-                ) : (
-                  rendered.data || <>&nbsp;</>
-                )}
-              </InlineCode>
-              <div className="absolute right-0.5 top-0 bottom-0 flex items-center">
-                <IconButton
-                  size="xs"
-                  icon="refresh"
-                  className="text-text-subtle"
-                  title="Refresh preview"
-                  spin={rendered.isPending}
-                  onClick={() => {
-                    setRenderKey(new Date().toISOString());
-                  }}
-                />
-              </div>
             </div>
           </div>
-        ) : (
-          <span />
-        )}
-        <div className="flex justify-stretch w-full grow gap-2 *:flex-1">
-          {templateFunction.data.name === "secure" && (
-            <Button variant="border" color="secondary" onClick={setupOrConfigureEncryption}>
-              Reveal Encryption Key
-            </Button>
-          )}
-          <Button type="submit" color="primary">
-            Save
-          </Button>
         </div>
-      </div>
+      ) : (
+        <span />
+      )}
+      <DialogFooter
+        actions={[
+          ...(templateFunction.data.name === "secure"
+            ? [{ label: "Reveal Encryption Key", onClick: setupOrConfigureEncryption }]
+            : []),
+          { label: "Save", color: "primary", form: formId },
+        ]}
+      />
     </form>
   );
 }
@@ -272,7 +270,6 @@ TemplateFunctionDialog.show = (
     id: `template-function-${Math.random()}`, // Allow multiple at once
     size: "md",
     className: "h-240",
-    noPadding: true,
     title: <InlineCode>{fn.name}(…)</InlineCode>,
     description: fn.description,
     render: ({ hide }) => {

apps/yaak-client/components/WebsocketRequestPane.tsx

@@ -110,6 +110,8 @@ export function WebsocketRequestPane({ style, fullHeight, className, activeReque
     [activeRequest.url, activeRequest.urlParameters, handleRenamePathPlaceholder],
   );
 
+  const hasDescription = activeRequest.description.trim().length > 0;
+
   const tabs = useMemo<TabItem[]>(() => {
     return [
       {
@@ -131,9 +133,10 @@ export function WebsocketRequestPane({ style, fullHeight, className, activeReque
       {
         value: TAB_DESCRIPTION,
         label: "Info",
+        rightSlot: hasDescription && <CountBadge count={true} />,
       },
     ];
-  }, [authTab, headersTab, numSettingsOverrides, urlParameterPairs.length]);
+  }, [authTab, hasDescription, headersTab, numSettingsOverrides, urlParameterPairs.length]);
 
   const { activeResponse } = usePinnedHttpResponse(activeRequestId);
   const { mutate: cancelResponse } = useCancelHttpResponse(activeResponse?.id ?? null);

apps/yaak-client/components/Workspace.tsx

@@ -40,6 +40,7 @@ import { ErrorBoundary } from "./ErrorBoundary";
 import { FolderLayout } from "./FolderLayout";
 import { GrpcConnectionLayout } from "./GrpcConnectionLayout";
 import { HttpRequestLayout } from "./HttpRequestLayout";
+import { RedirectToLatestWorkspace } from "./RedirectToLatestWorkspace";
 import Sidebar from "./Sidebar";
 import { SidebarActions } from "./SidebarActions";
 import { WebsocketRequestLayout } from "./WebsocketRequestLayout";
@@ -66,9 +67,8 @@ export function Workspace() {
     return { background };
   }, [activeEnvironment?.color]);
 
-  // We're loading still
   if (workspaces.length === 0) {
-    return null;
+    return <RedirectToLatestWorkspace />;
   }
 
   const header = (

apps/yaak-client/components/core/BulkPairEditor.test.ts

@@ -1,5 +1,10 @@
 import { describe, expect, test } from "vite-plus/test";
-import { parseBulkPairLine } from "./BulkPairEditor";
+import {
+  formatBulkPairLine,
+  formatBulkPairs,
+  parseBulkPairLine,
+  parseBulkPairs,
+} from "./BulkPairEditor";
 
 describe("parseBulkPairLine", () => {
   test("parses colon-space pairs as name and value", () => {
@@ -33,4 +38,130 @@ describe("parseBulkPairLine", () => {
       value: "bar\nbaz",
     });
   });
+
+  test("parses commented-out pairs as disabled", () => {
+    expect(parseBulkPairLine("# foo: bar")).toMatchObject({
+      enabled: false,
+      name: "foo",
+      value: "bar",
+    });
+  });
+
+  test("allows any whitespace after the comment marker", () => {
+    expect(parseBulkPairLine("#   foo: bar")).toMatchObject({
+      enabled: false,
+      name: "foo",
+      value: "bar",
+    });
+    expect(parseBulkPairLine("#\tfoo: bar")).toMatchObject({
+      enabled: false,
+      name: "foo",
+      value: "bar",
+    });
+  });
+
+  test("treats a # without whitespace after it as part of the name", () => {
+    expect(parseBulkPairLine("#foo: bar")).toMatchObject({
+      enabled: true,
+      name: "#foo",
+      value: "bar",
+    });
+  });
+
+  test("parses commented-out pairs with an empty value as disabled", () => {
+    expect(parseBulkPairLine("# token:")).toMatchObject({
+      enabled: false,
+      name: "token",
+      value: "",
+    });
+    expect(parseBulkPairLine("# token: ")).toMatchObject({
+      enabled: false,
+      name: "token",
+      value: "",
+    });
+  });
+
+  test("drops comments that are not pairs", () => {
+    expect(parseBulkPairLine("# just a comment")).toBeNull();
+    expect(parseBulkPairLine("# see http://example.com")).toBeNull();
+    expect(parseBulkPairLine("#")).toBeNull();
+  });
+
+  test("leaves values that start with # alone", () => {
+    expect(parseBulkPairLine("color: #fff")).toMatchObject({
+      enabled: true,
+      name: "color",
+      value: "#fff",
+    });
+  });
+});
+
+describe("formatBulkPairLine", () => {
+  test("formats enabled pairs as name and value", () => {
+    expect(formatBulkPairLine({ enabled: true, name: "foo", value: "bar" })).toBe("foo: bar");
+  });
+
+  test("treats pairs without an enabled flag as enabled", () => {
+    expect(formatBulkPairLine({ name: "foo", value: "bar" })).toBe("foo: bar");
+  });
+
+  test("comments out disabled pairs", () => {
+    expect(formatBulkPairLine({ enabled: false, name: "foo", value: "bar" })).toBe("# foo: bar");
+  });
+
+  test("escapes newlines in values", () => {
+    expect(formatBulkPairLine({ enabled: false, name: "foo", value: "a\nb" })).toBe("# foo: a\\nb");
+  });
+});
+
+describe("bulk pair round trip", () => {
+  test("preserves order and enabled state", () => {
+    const pairs = [
+      { enabled: true, name: "host", value: "example.com" },
+      { enabled: false, name: "token", value: "old" },
+      { enabled: true, name: "color", value: "#fff" },
+      { enabled: false, name: "multi", value: "a\nb" },
+      { enabled: true, name: "token", value: "new" },
+    ];
+
+    const text = formatBulkPairs(pairs);
+    expect(text).toBe(
+      ["host: example.com", "# token: old", "color: #fff", "# multi: a\\nb", "token: new"].join(
+        "\n",
+      ),
+    );
+
+    const parsed = parseBulkPairs(text);
+    expect(parsed.map(({ enabled, name, value }) => ({ enabled, name, value }))).toEqual(pairs);
+  });
+
+  test("preserves enabled pairs whose name starts with #", () => {
+    const pairs = [{ enabled: true, name: "#foo", value: "bar" }];
+    const text = formatBulkPairs(pairs);
+    expect(text).toBe("#foo: bar");
+    const parsed = parseBulkPairs(text);
+    expect(parsed.map(({ enabled, name, value }) => ({ enabled, name, value }))).toEqual(pairs);
+  });
+
+  test("preserves disabled pairs whose name starts with #", () => {
+    const pairs = [{ enabled: false, name: "#foo", value: "bar" }];
+    const text = formatBulkPairs(pairs);
+    expect(text).toBe("# #foo: bar");
+    const parsed = parseBulkPairs(text);
+    expect(parsed.map(({ enabled, name, value }) => ({ enabled, name, value }))).toEqual(pairs);
+  });
+
+  test("preserves disabled pairs with empty values", () => {
+    const pairs = [{ enabled: false, name: "token", value: "" }];
+    const parsed = parseBulkPairs(formatBulkPairs(pairs));
+    expect(parsed.map(({ enabled, name, value }) => ({ enabled, name, value }))).toEqual(pairs);
+  });
+
+  test("drops free-text comments and blank lines between pairs", () => {
+    const parsed = parseBulkPairs("# Auth\nfoo: bar\n\n# baz: qux\n# see the docs");
+    expect(parsed.map(({ enabled, name, value }) => ({ enabled, name, value }))).toEqual([
+      { enabled: true, name: "foo", value: "bar" },
+      { enabled: false, name: "baz", value: "qux" },
+    ]);
+  });
 });

apps/yaak-client/components/core/BulkPairEditor.tsx

@@ -14,20 +14,11 @@ export function BulkPairEditor({
   forcedEnvironmentId,
   stateKey,
 }: Props) {
-  const pairsText = useMemo(() => {
-    return pairs
-      .filter((p) => !(p.name.trim() === "" && p.value.trim() === ""))
-      .map(formatBulkPairLine)
-      .join("\n");
-  }, [pairs]);
+  const pairsText = useMemo(() => formatBulkPairs(pairs), [pairs]);
 
   const handleChange = useCallback(
     (text: string) => {
-      const pairs = text
-        .split("\n")
-        .filter((l: string) => l.trim())
-        .map(parseBulkPairLine);
-      onChange(pairs);
+      onChange(parseBulkPairs(text));
     },
     [onChange],
   );
@@ -47,13 +38,57 @@ export function BulkPairEditor({
   );
 }
 
-export function formatBulkPairLine(pair: Pair) {
-  const value = pair.value.replaceAll("\n", "\\n");
-  return `${pair.name}: ${value}`;
+export function formatBulkPairs(pairs: Pair[]): string {
+  return pairs
+    .filter((p) => !(p.name.trim() === "" && p.value.trim() === ""))
+    .map(formatBulkPairLine)
+    .join("\n");
 }
 
-export function parseBulkPairLine(line: string): PairWithId {
-  const [, name, value] = line.match(/^([^:]+):\s+(.*)$/) ?? [];
+export function parseBulkPairs(text: string): PairWithId[] {
+  return text
+    .split("\n")
+    .filter((l: string) => l.trim())
+    .map(parseBulkPairLine)
+    .filter((p) => p != null);
+}
+
+/**
+ * Format a pair as a `name: value` line. Disabled pairs are commented out dotenv-style, as
+ * `# name: value`, so the enabled state survives a round trip through {@link parseBulkPairLine}.
+ */
+export function formatBulkPairLine(pair: Pair) {
+  const value = pair.value.replaceAll("\n", "\\n");
+  const line = `${pair.name}: ${value}`;
+  return pair.enabled === false ? `# ${line}` : line;
+}
+
+const PAIR_REGEX = /^([^:]+):\s+(.*)$/;
+// Commented-out pairs may also end at the colon, so a hand-typed `# name:` isn't dropped
+const COMMENTED_PAIR_REGEX = /^([^:]+):(?:\s+(.*))?$/;
+// A # only marks a comment when followed by whitespace (or nothing), so `#foo: bar` stays an
+// enabled pair named `#foo`
+const COMMENT_PREFIX_REGEX = /^\s*#(?:\s+|$)/;
+
+/**
+ * Parse a `name: value` line into an enabled pair. A line starting with `# ` is a disabled pair
+ * if the rest of it parses as `name: value`, otherwise it's a free-text comment and `null` is
+ * returned so it can be dropped.
+ */
+export function parseBulkPairLine(line: string): PairWithId | null {
+  const commentPrefix = line.match(COMMENT_PREFIX_REGEX);
+  if (commentPrefix != null) {
+    const uncommented = line.slice(commentPrefix[0].length);
+    const match = uncommented.match(COMMENTED_PAIR_REGEX);
+    if (match == null) return null;
+    return { ...pairFromMatch(uncommented, match), enabled: false };
+  }
+
+  return pairFromMatch(line, line.match(PAIR_REGEX));
+}
+
+function pairFromMatch(line: string, match: RegExpMatchArray | null): PairWithId {
+  const [, name, value] = match ?? [];
   return {
     enabled: true,
     name: (name ?? line).trim(),

apps/yaak-client/components/core/CheckboxTree.tsx

@@ -0,0 +1,114 @@
+import { Icon } from "@yaakapp-internal/ui";
+import classNames from "classnames";
+import type { ReactNode } from "react";
+import { useState } from "react";
+import type { CheckboxProps } from "./Checkbox";
+import { Checkbox } from "./Checkbox";
+
+export interface CheckboxTreeNode<T> {
+  key: string;
+  data: T;
+  children: CheckboxTreeNode<T>[];
+}
+
+interface Props<T> {
+  node: CheckboxTreeNode<T>;
+  depth?: number;
+  /** Return "hidden" to render row alignment space instead of a checkbox */
+  checked: (node: CheckboxTreeNode<T>) => CheckboxProps["checked"] | "hidden";
+  onCheck: (node: CheckboxTreeNode<T>, checked: boolean) => void;
+  checkboxTitle?: (node: CheckboxTreeNode<T>) => string;
+  isCheckboxDisabled?: (node: CheckboxTreeNode<T>) => boolean;
+  /** An irrelevant row is hidden unless one of its descendants is relevant */
+  isRelevant: (node: CheckboxTreeNode<T>) => boolean;
+  /** A node that starts collapsed, so a large subtree doesn't crowd out the rest */
+  isCollapsedByDefault?: (node: CheckboxTreeNode<T>) => boolean;
+  renderRow: (node: CheckboxTreeNode<T>) => ReactNode;
+  onSelectRow?: (node: CheckboxTreeNode<T>) => void;
+  canSelectRow?: (node: CheckboxTreeNode<T>) => boolean;
+  isRowSelected?: (node: CheckboxTreeNode<T>) => boolean;
+}
+
+export function CheckboxTree<T>(props: Props<T>) {
+  const { node, depth = 0 } = props;
+  const [collapsed, setCollapsed] = useState<boolean>(
+    () => props.isCollapsedByDefault?.(node) ?? false,
+  );
+  if (!hasRelevantNode(node, props.isRelevant)) return null;
+
+  const checked = props.checked(node);
+  const selected = props.isRowSelected?.(node) ?? false;
+  const selectable = props.onSelectRow != null && (props.canSelectRow?.(node) ?? true);
+  const hasVisibleChildren = node.children.some((c) => hasRelevantNode(c, props.isRelevant));
+  const rowContent = (
+    <div className="flex-1 min-w-0 flex items-center gap-1 px-1 py-0.5 text-left">
+      {props.renderRow(node)}
+    </div>
+  );
+
+  return (
+    <div
+      className={classNames(
+        depth > 0 && "pl-4 ml-2 border-l border-dashed border-border-subtle relative",
+      )}
+    >
+      <div
+        className={classNames(
+          "relative flex gap-1 w-full h-xs items-center",
+          selected ? "text-text" : "text-text-subtle",
+        )}
+      >
+        {selected && (
+          <div className="absolute left-[-100vw] right-0 top-0 bottom-0 bg-surface-active opacity-30 -z-10" />
+        )}
+        {hasVisibleChildren ? (
+          <button
+            type="button"
+            aria-label={collapsed ? "Expand" : "Collapse"}
+            aria-expanded={!collapsed}
+            className="shrink-0 text-text-subtlest hocus:text-text"
+            onClick={() => setCollapsed((v) => !v)}
+          >
+            <Icon size="sm" icon={collapsed ? "chevron_right" : "chevron_down"} />
+          </button>
+        ) : (
+          <span aria-hidden className="w-4 shrink-0" />
+        )}
+        {checked === "hidden" ? (
+          <span aria-hidden className="w-4 mr-0.5 shrink-0" />
+        ) : (
+          <Checkbox
+            checked={checked}
+            title={props.checkboxTitle?.(node) ?? "Toggle"}
+            hideLabel
+            disabled={props.isCheckboxDisabled?.(node)}
+            onChange={(checked) => props.onCheck(node, checked)}
+          />
+        )}
+        {selectable ? (
+          <button
+            type="button"
+            className="flex-1 min-w-0 flex text-left"
+            onClick={() => props.onSelectRow?.(node)}
+          >
+            {rowContent}
+          </button>
+        ) : (
+          rowContent
+        )}
+      </div>
+
+      {!collapsed &&
+        node.children.map((child) => (
+          <CheckboxTree key={child.key} {...props} node={child} depth={depth + 1} />
+        ))}
+    </div>
+  );
+}
+
+function hasRelevantNode<T>(
+  node: CheckboxTreeNode<T>,
+  isRelevant: (node: CheckboxTreeNode<T>) => boolean,
+): boolean {
+  return isRelevant(node) || node.children.some((c) => hasRelevantNode(c, isRelevant));
+}

apps/yaak-client/components/core/Chip.tsx

@@ -0,0 +1,32 @@
+import type { Color } from "@yaakapp-internal/plugins";
+import classNames from "classnames";
+import type { ReactNode } from "react";
+
+interface Props {
+  color?: Color | "default";
+  className?: string;
+  children: ReactNode;
+}
+
+/** A small tinted label, like a Gmail or Trello label */
+export function Chip({ color = "default", className, children }: Props) {
+  return (
+    <span
+      className={classNames(
+        className,
+        "text-xs font-medium rounded-md px-2 py-0.5 bg-current/10 border border-current/10 shrink-0 whitespace-nowrap",
+        "inline-flex items-center gap-1",
+        color === "default" && "text-text-subtle",
+        color === "primary" && "text-primary",
+        color === "secondary" && "text-secondary",
+        color === "info" && "text-info",
+        color === "success" && "text-success",
+        color === "notice" && "text-notice",
+        color === "warning" && "text-warning",
+        color === "danger" && "text-danger",
+      )}
+    >
+      {children}
+    </span>
+  );
+}

apps/yaak-client/components/core/Confirm.tsx

@@ -1,9 +1,8 @@
 import type { Color } from "@yaakapp-internal/plugins";
-import { HStack } from "@yaakapp-internal/ui";
 import type { FormEvent } from "react";
-import { useState } from "react";
+import { useId, useState } from "react";
 import { CopyIconButton } from "../CopyIconButton";
-import { Button } from "./Button";
+import { DialogFooter } from "./Dialog";
 import { PlainInput } from "./PlainInput";
 
 export interface ConfirmProps {
@@ -22,6 +21,7 @@ export function Confirm({
   color = "primary",
 }: ConfirmProps) {
   const [confirm, setConfirm] = useState<string>("");
+  const formId = useId();
   const handleHide = () => {
     onResult(false);
     onHide();
@@ -38,7 +38,7 @@ export function Confirm({
   };
 
   return (
-    <form className="flex flex-col" onSubmit={handleSuccess}>
+    <form id={formId} className="flex flex-col" onSubmit={handleSuccess}>
       {requireTyping && (
         <PlainInput
           autoFocus
@@ -61,14 +61,19 @@ export function Confirm({
           }
         />
       )}
-      <HStack space={2} justifyContent="start" className="mt-2 mb-4 flex-row-reverse">
-        <Button type="submit" color={color} disabled={!didConfirm}>
-          {confirmText ?? "Confirm"}
-        </Button>
-        <Button onClick={handleHide} variant="border">
-          Cancel
-        </Button>
-      </HStack>
+      <DialogFooter
+        inline
+        actions={[
+          { label: "Cancel", onClick: handleHide },
+          {
+            label: confirmText ?? "Confirm",
+            color,
+            form: formId,
+            disabled: !didConfirm,
+            autoFocus: !requireTyping,
+          },
+        ]}
+      />
     </form>
   );
 }

apps/yaak-client/components/core/Dialog.tsx

@@ -1,20 +1,24 @@
 import type { DialogSize } from "@yaakapp-internal/plugins";
-import { Heading, Overlay } from "@yaakapp-internal/ui";
+import { Heading, HStack, Overlay } from "@yaakapp-internal/ui";
 import classNames from "classnames";
 import * as m from "motion/react-m";
 import type { ReactNode } from "react";
-import { useMemo } from "react";
+import { createContext, useContext, useMemo, useState } from "react";
+import { createPortal } from "react-dom";
+import { Button, type ButtonProps } from "./Button";
 import { IconButton } from "./IconButton";
 
 export interface DialogProps {
   children: ReactNode;
   open: boolean;
   onClose?: () => void;
-  disableBackdropClose?: boolean;
+  /** Block dismissal from the backdrop, Escape key, and built-in close button. */
+  disableClose?: boolean;
   title?: ReactNode;
   description?: ReactNode;
   className?: string;
   size?: DialogSize;
+  /** Hide the built-in close button without changing backdrop or Escape behavior. */
   hideX?: boolean;
   noPadding?: boolean;
   noScroll?: boolean;
@@ -27,7 +31,7 @@ export function Dialog({
   size = "full",
   open,
   onClose,
-  disableBackdropClose,
+  disableClose,
   title,
   description,
   hideX,
@@ -36,13 +40,14 @@ export function Dialog({
   vAlign = "center",
 }: DialogProps) {
   const titleId = useMemo(() => Math.random().toString(36).slice(2), []);
+  const [footerEl, setFooterEl] = useState<HTMLDivElement | null>(null);
   const descriptionId = useMemo(
     () => (description ? Math.random().toString(36).slice(2) : undefined),
     [description],
   );
 
   return (
-    <Overlay open={open} onClose={disableBackdropClose ? undefined : onClose} portalName="dialog">
+    <Overlay open={open} onClose={disableClose ? undefined : onClose} portalName="dialog">
       <div
         role="dialog"
         className={classNames(
@@ -58,7 +63,7 @@ export function Dialog({
           // NOTE: We handle Escape on the element itself so that it doesn't close multiple
           //   dialogs and can be intercepted by children if needed.
           if (e.key === "Escape") {
-            onClose?.();
+            if (!disableClose) onClose?.();
             e.stopPropagation();
             e.preventDefault();
           }
@@ -69,7 +74,7 @@ export function Dialog({
           animate={{ top: 0, scale: 1 }}
           className={classNames(
             className,
-            "grid grid-rows-[auto_auto_minmax(0,1fr)]",
+            "grid grid-rows-[auto_auto_minmax(0,1fr)_auto]",
             "grid-cols-1", // must be here for inline code blocks to correctly break words
             "relative bg-surface pointer-events-auto",
             "rounded-lg",
@@ -106,11 +111,13 @@ export function Dialog({
               !noScroll && "overflow-y-auto overflow-x-hidden",
             )}
           >
-            {children}
+            <DialogFooterSlot.Provider value={footerEl}>{children}</DialogFooterSlot.Provider>
           </div>
 
+          <div ref={setFooterEl} className="contents" />
+
           {/*Put close at the end so that it's the last thing to be tabbed to*/}
-          {!hideX && (
+          {!disableClose && !hideX && (
             <div className="ml-auto absolute right-1 top-1">
               <IconButton
                 className="opacity-70 hover:opacity-100"
@@ -127,3 +134,67 @@ export function Dialog({
     </Overlay>
   );
 }
+
+const DialogFooterSlot = createContext<HTMLDivElement | null>(null);
+
+export interface DialogFooterAction {
+  label: string;
+  onClick?: () => void;
+  /** Submit the form with this id, which can be anywhere in the dialog body */
+  form?: string;
+  color?: ButtonProps["color"];
+  variant?: ButtonProps["variant"];
+  disabled?: boolean;
+  isLoading?: boolean;
+  autoFocus?: boolean;
+  leftSlot?: ReactNode;
+  rightSlot?: ReactNode;
+}
+
+/**
+ * The action row at the bottom of a dialog. Render it anywhere in the dialog's content and it is
+ * placed below the scrolling body, outside its padding. `inline` drops the divider for small
+ * dialogs whose body never scrolls.
+ */
+export function DialogFooter({
+  actions,
+  leftSlot,
+  inline,
+}: {
+  actions: DialogFooterAction[];
+  leftSlot?: ReactNode;
+  inline?: boolean;
+}) {
+  const slot = useContext(DialogFooterSlot);
+  const footer = (
+    <footer
+      className={classNames(
+        "px-6 flex items-center gap-3",
+        inline ? "pt-1 pb-4" : "py-3 border-t border-border-subtle",
+      )}
+    >
+      {leftSlot != null && <div className="mr-auto min-w-0">{leftSlot}</div>}
+      <HStack space={2} justifyContent="end" className="ml-auto shrink-0">
+        {actions.map((action, i) => (
+          <Button
+            // Labels change with state ("Cloning...", "Apply 3 Changes"), so they can't be keys
+            key={i}
+            type={action.form != null ? "submit" : "button"}
+            form={action.form}
+            color={action.color ?? "secondary"}
+            variant={action.variant ?? (action.color == null ? "border" : "solid")}
+            disabled={action.disabled}
+            isLoading={action.isLoading}
+            autoFocus={action.autoFocus}
+            leftSlot={action.leftSlot}
+            rightSlot={action.rightSlot}
+            onClick={action.onClick}
+          >
+            {action.label}
+          </Button>
+        ))}
+      </HStack>
+    </footer>
+  );
+  return slot == null ? footer : createPortal(footer, slot);
+}

apps/yaak-client/components/core/Editor/Editor.tsx

@@ -442,7 +442,21 @@ function EditorInner({
           ? EditorState.fromJSON(cachedJsonState, config, stateFields)
           : EditorState.create(config);
 
-        const view = new EditorView({ state, parent: container });
+        // PERF: Built detached and attached in a microtask, rather than passing `parent` and
+        // letting the constructor attach it first.
+        //
+        // The constructor sets `contenteditable` on the content element and then reads
+        // `document.fonts.ready`. Both force the browser to flush style and layout when the
+        // element is already in the document, and whatever the previous editor attached has
+        // just dirtied it again — so mounting n editors in one commit costs n forced layouts.
+        // The environment editor mounts two per variable row (~60 of them), which is where its
+        // half-second open went.
+        //
+        // Building detached moves that work off the live document, and deferring the attach to
+        // a microtask means every editor in the commit is built before any of them is inserted:
+        // one forced layout for the batch instead of one each. The microtask still runs before
+        // paint, so nothing is visible in the meantime.
+        const view = new EditorView({ state });
 
         // For large documents, the parser may parse the max number of lines and fail to add
         // things like fold markers because of it.
@@ -450,12 +464,26 @@ function EditorInner({
         forceParsing(view, 9e6, 100);
 
         cm.current = { view, languageCompartment };
-        if (autoFocus) {
-          view.focus();
-        }
-        if (autoSelect) {
-          view.dispatch({ selection: { anchor: 0, head: view.state.doc.length } });
-        }
+        queueMicrotask(() => {
+          // The editor was torn down (or replaced) before we got here
+          if (cm.current?.view !== view) return;
+
+          // Runs after the surrounding try/catch has returned, so it needs its own
+          try {
+            container.appendChild(view.dom);
+            // Everything the constructor measured, it measured detached
+            view.requestMeasure();
+
+            if (autoFocus) {
+              view.focus();
+            }
+            if (autoSelect) {
+              view.dispatch({ selection: { anchor: 0, head: view.state.doc.length } });
+            }
+          } catch (e) {
+            console.log("Failed to attach Codemirror", e);
+          }
+        });
         setRef?.(view);
       } catch (e) {
         console.log("Failed to initialize Codemirror", e);
@@ -601,6 +629,8 @@ function getExtensions({
     EditorView.contentAttributes.of({
       autocapitalize: "off",
       autocorrect: "off",
+      // Keeps macOS Writing Tools from offering to write code for us
+      writingsuggestions: "false",
     }),
     EditorView.domEventHandlers({
       focus: () => {

apps/yaak-client/components/core/Editor/json-lint.test.ts

@@ -0,0 +1,46 @@
+import type { EditorView } from "@codemirror/view";
+import { describe, expect, test } from "vite-plus/test";
+import { jsonParseLinter } from "./json-lint";
+
+// The linter only reads the document text off the view
+function view(doc: string): EditorView {
+  return { state: { doc: { toString: () => doc } } } as EditorView;
+}
+
+const lint = jsonParseLinter();
+
+describe("jsonParseLinter", () => {
+  test("reports nothing for an empty document", () => {
+    expect(lint(view("  "))).toEqual([]);
+  });
+
+  test("reports nothing for valid JSON", () => {
+    expect(lint(view('{"a": 1}'))).toEqual([]);
+  });
+
+  test("reports a message for invalid JSON", () => {
+    expect(lint(view('{"a": }'))).toHaveLength(1);
+  });
+
+  test("ignores a template tag standing in for a value", () => {
+    expect(lint(view('{"a": "${[ my_var ]}"}'))).toEqual([]);
+  });
+
+  test("ignores a tag whose quoted argument contains `]}`", () => {
+    expect(lint(view(`{"a": "\${[ fn(arg='x]}y') ]}"}`))).toEqual([]);
+  });
+
+  test("ignores a tag whose quoted argument contains an escaped quote", () => {
+    expect(lint(view(`{"a": "\${[ fn(arg='it\\'s ]}') ]}"}`))).toEqual([]);
+  });
+
+  test("still reports errors around a tag with a quoted `]}`", () => {
+    expect(lint(view(`{"a": "\${[ fn(arg='x]}y') ]}",}`))).toHaveLength(1);
+  });
+
+  test("keeps the tag's length so error offsets stay correct", () => {
+    const doc = `{"a" "\${[ fn(arg='x]}y') ]}"}`;
+    const [error] = lint(view(doc));
+    expect(error?.from).toEqual(doc.indexOf('"${['));
+  });
+});

apps/yaak-client/components/core/Editor/json-lint.ts

@@ -1,8 +1,7 @@
 import type { Diagnostic } from "@codemirror/lint";
 import type { EditorView } from "@codemirror/view";
 import { type ParseError, parse, printParseErrorCode } from "jsonc-parser";
-
-const TEMPLATE_SYNTAX_REGEX = /\$\{\[[\s\S]*?]}/g;
+import { replaceTemplateTags } from "../../../lib/templateTags";
 
 // jsonc-parser reports error codes, so these are the words the editor shows for them
 const MESSAGES: Record<string, string> = {
@@ -32,9 +31,11 @@ interface JsonLintOptions {
 export function jsonParseLinter(options?: JsonLintOptions) {
   return (view: EditorView): Diagnostic[] => {
     const doc = view.state.doc.toString();
+    if (doc.trim() === "") return [];
+
     // We need lint to not break on stuff like {"foo:" ${[ ... ]}} so we'll replace all template
     // syntax with repeating `1` characters, so it's valid JSON and the position is still correct.
-    const escapedDoc = doc.replace(TEMPLATE_SYNTAX_REGEX, (m) => "1".repeat(m.length));
+    const escapedDoc = replaceTemplateTags(doc, (m) => "1".repeat(m.end - m.start));
 
     const errors: ParseError[] = [];
     parse(escapedDoc, errors, {

apps/yaak-client/components/core/Editor/json/breadcrumbExtension.ts

@@ -0,0 +1,41 @@
+import { syntaxTree } from "@codemirror/language";
+import type { Extension } from "@codemirror/state";
+import type { EditorView, ViewUpdate } from "@codemirror/view";
+import { ViewPlugin } from "@codemirror/view";
+import type { JsonPathSegment } from "./jsonPath";
+import { jsonPathSegmentsAt } from "./jsonPath";
+
+export interface BreadcrumbUpdate {
+  /** Path to the cursor, or `null` when the document isn't JSON. */
+  segments: JsonPathSegment[] | null;
+}
+
+/**
+ * Reports the JSON path under the cursor when the editor is created (it may restore a
+ * cached selection), and whenever the selection, document, or parsed tree changes. The
+ * tree matters because large documents parse in the background, so a path read early
+ * can be wrong until the parser reaches the cursor.
+ *
+ * The callback is not fired on blur: moving focus to the filter box (by clicking
+ * a crumb) must not erase the breadcrumb that was just acted on.
+ */
+export function jsonBreadcrumbExtension(onUpdate: (update: BreadcrumbUpdate) => void): Extension {
+  const report = (view: EditorView) => {
+    onUpdate({ segments: jsonPathSegmentsAt(view.state, view.state.selection.main.head) });
+  };
+
+  return ViewPlugin.define((view) => {
+    report(view);
+    return {
+      update(update: ViewUpdate) {
+        if (
+          update.selectionSet ||
+          update.docChanged ||
+          syntaxTree(update.startState) !== syntaxTree(update.state)
+        ) {
+          report(update.view);
+        }
+      },
+    };
+  });
+}

apps/yaak-client/components/core/Editor/json/jsonPath.test.ts

@@ -0,0 +1,136 @@
+import { EditorState } from "@codemirror/state";
+import { jsonc } from "@shopify/lang-jsonc";
+import { forceParsing } from "@codemirror/language";
+import { describe, expect, test } from "vite-plus/test";
+import { jsonPathSegmentsAt, jsonPathToSegments, segmentsToJsonPath } from "./jsonPath";
+
+function stateFor(doc: string): EditorState {
+  const state = EditorState.create({ doc, extensions: [jsonc()] });
+  // Ensure the whole doc is parsed so resolveInner sees a complete tree.
+  forceParsing({ state } as never, doc.length, 5000);
+  return state;
+}
+
+/** JSONPath produced when the cursor sits just after the first occurrence of `needle`. */
+function pathAt(doc: string, needle: string): string {
+  const pos = doc.indexOf(needle) + needle.length;
+  const segs = jsonPathSegmentsAt(stateFor(doc), pos);
+  if (segs == null) throw new Error("no JSON tree");
+  return segmentsToJsonPath(segs);
+}
+
+/** JSONPath produced when the cursor sits just before the first occurrence of `needle`. */
+function pathBefore(doc: string, needle: string): string {
+  const pos = doc.indexOf(needle);
+  const segs = jsonPathSegmentsAt(stateFor(doc), pos);
+  if (segs == null) throw new Error("no JSON tree");
+  return segmentsToJsonPath(segs);
+}
+
+describe("jsonPathSegmentsAt", () => {
+  test("nested object keys", () => {
+    const doc = `{ "address": { "geo": { "lat": "-37" } } }`;
+    expect(pathAt(doc, `-37`)).toBe(`$.address.geo.lat`);
+  });
+
+  test("array element index", () => {
+    const doc = `{ "featured": [ { "id": 1 }, { "id": 2 } ] }`;
+    expect(pathAt(doc, `2`)).toBe(`$.featured[1].id`);
+  });
+
+  test("root array element", () => {
+    const doc = `[ { "id": 1 }, { "id": 2 } ]`;
+    expect(pathAt(doc, `"id": 2`)).toBe(`$[1].id`);
+  });
+
+  test("key containing a dot uses bracket-quote notation", () => {
+    const doc = `{ "sort": { "link": { "filter": { "category.id": [ "100" ] } } } }`;
+    expect(pathAt(doc, `"100"`)).toBe(`$.sort.link.filter["category.id"][0]`);
+  });
+
+  test("cursor on a property name resolves that key", () => {
+    const doc = `{ "outer": { "inner": 5 } }`;
+    expect(pathAt(doc, `"inner"`)).toBe(`$.outer.inner`);
+  });
+
+  test("deeply nested arrays and objects", () => {
+    const doc = `{ "a": [ { "b": [ 10, 20, 30 ] } ] }`;
+    expect(pathAt(doc, `30`)).toBe(`$.a[0].b[2]`);
+  });
+
+  test("root scalar yields the root path", () => {
+    expect(pathAt(`"hello"`, `hello`)).toBe(`$`);
+  });
+
+  test("caret just before a key still resolves that key", () => {
+    // The character to the left is the object's whitespace, not the property.
+    const doc = `[\n  {\n    "userId": 1,\n    "body": "x"\n  }\n]`;
+    expect(pathBefore(doc, `"body"`)).toBe(`$[0].body`);
+  });
+
+  test("caret in a line's indentation resolves that line's member", () => {
+    // Caret in the blank indentation of the `title` line (structurally the
+    // object's whitespace) reads as being on `title`, not a neighbour.
+    const doc = `[\n  {\n    "userId": 1,\n    "id": 1,\n    "title": "x"\n  }\n]`;
+    const pos = doc.indexOf(`"title"`) - 2; // two spaces into the title line
+    const segs = jsonPathSegmentsAt(stateFor(doc), pos);
+    expect(segs == null ? null : segmentsToJsonPath(segs)).toBe(`$[0].title`);
+  });
+
+  test("caret at the end of an array element keeps the element index", () => {
+    // The caret sits after `}` where the left token is the object's close brace.
+    const doc = `[\n  { "id": 1 },\n  { "id": 2 }\n]`;
+    const pos = doc.indexOf(`},`) + 1;
+    const segs = jsonPathSegmentsAt(stateFor(doc), pos);
+    expect(segs == null ? null : segmentsToJsonPath(segs)).toBe(`$[0]`);
+  });
+
+  test("non-JSON documents return null", () => {
+    const state = EditorState.create({ doc: `<xml/>` });
+    expect(jsonPathSegmentsAt(state, 3)).toBeNull();
+  });
+});
+
+describe("segmentsToJsonPath", () => {
+  test("empty segment list is the root", () => {
+    expect(segmentsToJsonPath([])).toBe(`$`);
+  });
+
+  test("partial path via count", () => {
+    const segs = [
+      { kind: "key", key: "a" },
+      { kind: "index", index: 2 },
+      { kind: "key", key: "b" },
+    ] as const;
+    expect(segmentsToJsonPath([...segs], 2)).toBe(`$.a[2]`);
+  });
+});
+
+describe("jsonPathToSegments", () => {
+  test("round-trips paths built by segmentsToJsonPath", () => {
+    for (const path of ["$", "$[0]", "$[0].id", '$.data["user.name"][12]', '$["say \\"hi\\""]']) {
+      const segments = jsonPathToSegments(path);
+      expect(segments).not.toBeNull();
+      expect(segmentsToJsonPath(segments ?? [])).toBe(path);
+    }
+  });
+
+  test("returns null for paths that don't name a single location", () => {
+    for (const path of [
+      "$..id",
+      "$[*]",
+      "$.items[?(@.id)]",
+      "$[0:2]",
+      "items[0]",
+      "$.a b",
+      '$["\\q"]',
+      '$["unterminated]',
+      '$["line\nbreak"]',
+      "$[01]",
+      "$[9007199254740993]",
+      "$.$",
+    ]) {
+      expect(jsonPathToSegments(path)).toBeNull();
+    }
+  });
+});

apps/yaak-client/components/core/Editor/json/jsonPath.ts

@@ -0,0 +1,102 @@
+import { syntaxTree } from "@codemirror/language";
+import type { EditorState } from "@codemirror/state";
+import type { SyntaxNode } from "@lezer/common";
+import type { JsonPathSegment } from "@yaakapp-internal/lib/jsonPath";
+
+export { jsonPathToSegments } from "@yaakapp-internal/lib/jsonPath";
+export type { JsonPathSegment } from "@yaakapp-internal/lib/jsonPath";
+
+// Lezer node names from the JSONC grammar (@shopify/lang-jsonc). A JSON value is
+// exactly one of these; everything else in the tree is punctuation or a comment.
+const VALUE_NODES = new Set(["Object", "Array", "String", "Number", "True", "False", "Null"]);
+// The nodes with children that a caret can land "between" — its whitespace and
+// punctuation belong to the container, not to any value inside it.
+const CONTAINER_NODES = new Set(["Object", "Array", "JsoncText"]);
+
+/** Read a `PropertyName` (a quoted JSON string) back to its raw key. */
+function keyFromPropertyName(node: SyntaxNode, state: EditorState): string {
+  const raw = state.doc.sliceString(node.from, node.to);
+  try {
+    return JSON.parse(raw) as string;
+  } catch {
+    // A half-typed or malformed key still deserves a best-effort label.
+    return raw.replace(/^"|"$/g, "");
+  }
+}
+
+/** Index of `child` among the value elements of its parent `Array` node. */
+function indexInArray(array: SyntaxNode, child: SyntaxNode): number {
+  let idx = 0;
+  for (let c = array.firstChild; c != null; c = c.nextSibling) {
+    if (c.from === child.from && c.to === child.to) return idx;
+    if (VALUE_NODES.has(c.name)) idx++;
+  }
+  return idx;
+}
+
+/**
+ * The path from the document root to the member on the caret's line, or `null`
+ * when the document has no JSON tree (a different language, or empty). An empty
+ * array means the caret sits at the root value itself.
+ *
+ * A caret exactly on a token uses that token. A caret in a line's whitespace
+ * resolves to the enclosing object or array, so it's re-anchored to the first
+ * non-whitespace character on that line — in pretty-printed JSON each member
+ * starts its own line, so that's the member's own token. This tracks "the line
+ * I'm on" without guessing between neighbouring keys.
+ *
+ * From the anchor, each ancestor contributes a segment: a `Property` its key, a
+ * value directly inside an `Array` its index. Collected deepest-first, reversed.
+ */
+export function jsonPathSegmentsAt(state: EditorState, pos: number): JsonPathSegment[] | null {
+  const tree = syntaxTree(state);
+  if (tree.topNode.name !== "JsoncText") return null;
+
+  let node: SyntaxNode = tree.resolveInner(pos, -1);
+  if (CONTAINER_NODES.has(node.name)) {
+    const line = state.doc.lineAt(pos);
+    const indent = line.text.length - line.text.trimStart().length;
+    if (indent < line.text.length) {
+      node = tree.resolveInner(line.from + indent, 1);
+    }
+  }
+
+  const segments: JsonPathSegment[] = [];
+  let cur: SyntaxNode | null = node;
+  while (cur != null) {
+    const parent: SyntaxNode | null = cur.parent;
+    if (cur.name === "Property") {
+      const nameNode = cur.getChild("PropertyName");
+      if (nameNode != null) {
+        segments.push({ kind: "key", key: keyFromPropertyName(nameNode, state) });
+      }
+    } else if (parent != null && parent.name === "Array" && VALUE_NODES.has(cur.name)) {
+      segments.push({ kind: "index", index: indexInArray(parent, cur) });
+    }
+    cur = parent;
+  }
+
+  segments.reverse();
+  return segments;
+}
+
+const BARE_KEY = /^[A-Za-z_$][A-Za-z0-9_$]*$/;
+
+/** A single segment as JSONPath, choosing dot vs. bracket form for a key. */
+function segmentToJsonPath(segment: JsonPathSegment): string {
+  if (segment.kind === "index") return `[${segment.index}]`;
+  // jsonpath-plus interprets a bare `$` as its root operator.
+  if (BARE_KEY.test(segment.key) && segment.key !== "$") return `.${segment.key}`;
+  // Anything with a dot, space, quote, etc. must be a quoted bracket accessor.
+  // JSON.stringify gives correct double-quoting and escaping, matching the
+  // convention the JSONPath filter box already displays.
+  return `[${JSON.stringify(segment.key)}]`;
+}
+
+/**
+ * Build a JSONPath expression for the first `count` segments (all of them by
+ * default). `segmentsToJsonPath([])` is the root, `$`.
+ */
+export function segmentsToJsonPath(segments: JsonPathSegment[], count = segments.length): string {
+  return "$" + segments.slice(0, count).map(segmentToJsonPath).join("");
+}

apps/yaak-client/components/core/Editor/searchMatchCount.test.ts

@@ -0,0 +1,202 @@
+import { SearchQuery } from "@codemirror/search";
+import { EditorState } from "@codemirror/state";
+import { describe, expect, test } from "vite-plus/test";
+import {
+  currentMatch,
+  literalSearch,
+  MAX_COUNT,
+  MatchCounter,
+  normalizeDoc,
+  normalizeSearch,
+  scanNormalized,
+  scanQuery,
+} from "./searchMatchCount";
+
+type QueryConfig = ConstructorParameters<typeof SearchQuery>[0];
+
+const stateOf = (doc: string) => EditorState.create({ doc });
+
+/**
+ * The matches the counter finds, having checked them against the search panel's own cursor.
+ *
+ * The cursor decides which ranges the editor highlights and which one `find next` lands on, so
+ * a count that doesn't agree with it is a wrong count, however fast it was to produce.
+ */
+function matchesOf(doc: string, config: QueryConfig) {
+  const state = stateOf(doc);
+  const query = new SearchQuery(config);
+  const matches = new MatchCounter().matches(state, query);
+  expect(matches).toEqual(scanQuery(state, query));
+  return matches;
+}
+
+const countOf = (doc: string, config: QueryConfig) => matchesOf(doc, config).length;
+
+describe("counting", () => {
+  test("counts every match, whatever the case", () => {
+    expect(countOf("one Two three two", { search: "two" })).toBe(2);
+    expect(countOf("one Two three two", { search: "two", caseSensitive: true })).toBe(1);
+  });
+
+  test("skips matches overlapping an earlier one", () => {
+    expect(countOf("aaaaa", { search: "aa" })).toBe(2);
+    expect(countOf("ababa", { search: "aba" })).toBe(1);
+  });
+
+  test("treats a query as text, not as a pattern", () => {
+    expect(countOf("a.b axb", { search: "a.b" })).toBe(1);
+  });
+
+  test("unquotes escapes unless the query is literal", () => {
+    expect(countOf("one\ntwo\nthree", { search: "\\n" })).toBe(2);
+    expect(countOf("one\\ntwo", { search: "\\n", literal: true })).toBe(1);
+  });
+
+  test("counts regexp and whole word queries through the cursor", () => {
+    expect(literalSearch(new SearchQuery({ search: "a", regexp: true }))).toBe(null);
+    expect(literalSearch(new SearchQuery({ search: "a", wholeWord: true }))).toBe(null);
+    expect(countOf("a1 b2 c3", { search: "[a-z]\\d", regexp: true })).toBe(3);
+    expect(countOf("cat cats cat", { search: "cat", wholeWord: true })).toBe(2);
+  });
+
+  test("stops counting at the cap", () => {
+    expect(countOf("x".repeat(MAX_COUNT + 100), { search: "x" })).toBe(MAX_COUNT + 1);
+  });
+
+  test("reports where the matches are", () => {
+    expect(matchesOf("ab..ab", { search: "ab" })).toEqual([
+      { from: 0, to: 2 },
+      { from: 4, to: 6 },
+    ]);
+  });
+
+  test("finds nothing to match with an empty needle", () => {
+    expect(scanNormalized(normalizeDoc("abc", false), "")).toEqual([]);
+  });
+});
+
+describe("normalization", () => {
+  test("finds what a character decomposes into", () => {
+    // The é is one character holding an `e`, and the match covers the whole of it
+    expect(matchesOf("café", { search: "e" })).toEqual([{ from: 3, to: 4 }]);
+    expect(matchesOf("file", { search: "fi" })).toEqual([{ from: 0, to: 1 }]);
+    expect(matchesOf("a…b", { search: "..." })).toEqual([{ from: 1, to: 2 }]);
+    expect(countOf("one two", { search: "one two" })).toBe(1);
+    expect(countOf("ｆｕｌｌ width", { search: "full" })).toBe(1);
+  });
+
+  test("matches a decomposed query against composed text, and the reverse", () => {
+    expect(countOf("café", { search: "café" })).toBe(1);
+    expect(countOf("café", { search: "café" })).toBe(1);
+    expect(countOf("café", { search: "café" })).toBe(1);
+  });
+
+  test("keeps offsets straight after an expansion", () => {
+    expect(matchesOf("é.é.end", { search: "end" })).toEqual([{ from: 4, to: 7 }]);
+    expect(matchesOf("fififi stop", { search: "stop" })).toEqual([{ from: 4, to: 8 }]);
+  });
+
+  test("normalizes the query whole, the document by character", () => {
+    expect(normalizeSearch("CAFÉ", false)).toBe("café");
+    expect(normalizeSearch("CAFÉ", true)).toBe("CAFÉ");
+    // Whole-string NFKD would fold this to a final sigma, which the cursor never does
+    expect(normalizeDoc("ΟΔΟΣ", false).text).toBe("οδοσ");
+  });
+
+  test("leaves a document that normalizes to itself untouched", () => {
+    const { text, expansions } = normalizeDoc("plain 日本 🎉 text", false);
+    expect(text).toBe("plain 日本 🎉 text");
+    expect(expansions).toEqual([]);
+  });
+});
+
+describe("current match", () => {
+  const matches = [
+    { from: 0, to: 2 },
+    { from: 4, to: 6 },
+    { from: 8, to: 10 },
+  ];
+
+  test("counts from one, and reports 0 off a match", () => {
+    expect(currentMatch(matches, { from: 4, to: 6 })).toBe(2);
+    expect(currentMatch(matches, { from: 8, to: 10 })).toBe(3);
+    expect(currentMatch(matches, { from: 5, to: 5 })).toBe(2);
+    expect(currentMatch(matches, { from: 2, to: 3 })).toBe(0);
+    expect(currentMatch(matches, { from: 4, to: 7 })).toBe(0);
+    expect(currentMatch([], { from: 0, to: 0 })).toBe(0);
+  });
+
+  test("moving the selection doesn't scan again", () => {
+    const state = stateOf("a1 b2 c3");
+    const query = new SearchQuery({ search: "\\d", regexp: true });
+    const counter = new MatchCounter();
+    const found = counter.matches(state, query);
+
+    // The document a selection-only transaction leaves behind is the one already scanned
+    const moved = state.update({ selection: { anchor: 4, head: 5 } }).state;
+    expect(counter.matches(moved, query)).toBe(found);
+    expect(currentMatch(found, moved.selection.main)).toBe(2);
+  });
+});
+
+/**
+ * The mapping from normalized offsets back to document offsets is the part of this that can go
+ * quietly wrong, and only on input nobody thinks to write a case for. So generate the input.
+ */
+describe("against the cursor, on awkward text", () => {
+  const ALPHABET = [
+    ..."abcABC .\\\n".split(""),
+    "é",
+    "é",
+    "fi",
+    "…",
+    " ",
+    "İ",
+    "Σ",
+    "ς",
+    "日",
+    "🎉",
+    "Ⅻ",
+    "ｆ",
+    "①",
+    "́",
+  ];
+
+  /** Seeded, so a failure is the same failure next run */
+  function random(seed: number) {
+    let state = seed;
+    return () => {
+      state = (state * 1664525 + 1013904223) >>> 0;
+      return state / 2 ** 32;
+    };
+  }
+
+  for (const caseSensitive of [false, true]) {
+    test(`agrees on every generated document (caseSensitive: ${caseSensitive})`, () => {
+      const next = random(caseSensitive ? 20260831 : 7);
+
+      for (let round = 0; round < 400; round++) {
+        const doc = Array.from(
+          { length: 2 + Math.floor(next() * 60) },
+          () => ALPHABET[Math.floor(next() * ALPHABET.length)]!,
+        ).join("");
+
+        // Half the queries are lifted out of the document, so matches are actually found
+        const start = Math.floor(next() * doc.length);
+        const search =
+          next() < 0.5
+            ? doc.slice(start, start + 1 + Math.floor(next() * 3))
+            : Array.from(
+                { length: 1 + Math.floor(next() * 2) },
+                () => ALPHABET[Math.floor(next() * ALPHABET.length)]!,
+              ).join("");
+        if (search === "") continue;
+
+        const state = stateOf(doc);
+        const query = new SearchQuery({ search, caseSensitive });
+        const where = `doc=${JSON.stringify(doc)} search=${JSON.stringify(search)}`;
+        expect(new MatchCounter().matches(state, query), where).toEqual(scanQuery(state, query));
+      }
+    });
+  }
+});

apps/yaak-client/components/core/Editor/searchMatchCount.ts

@@ -1,7 +1,232 @@
-import { getSearchQuery, searchPanelOpen } from "@codemirror/search";
-import type { Extension } from "@codemirror/state";
+import { getSearchQuery, type SearchQuery, searchPanelOpen } from "@codemirror/search";
+import type { EditorState, Extension, Text } from "@codemirror/state";
 import { type EditorView, ViewPlugin, type ViewUpdate } from "@codemirror/view";
 
+/** Matches are counted no further than this, since an exact total stops being useful long before */
+export const MAX_COUNT = 9999;
+
+/** What normalizing rewrites: anything outside ASCII, plus the case it folds */
+const REWRITTEN = /\P{ASCII}|[A-Z]+/gu;
+const REWRITTEN_CASE_SENSITIVE = /\P{ASCII}/gu;
+
+export interface Match {
+  from: number;
+  to: number;
+}
+
+/** A character whose normalized form is a different length, shifting every offset past it */
+interface Expansion {
+  normFrom: number;
+  normTo: number;
+  docFrom: number;
+  docTo: number;
+}
+
+/** A document as SearchCursor compares it, with what's needed to get back to real offsets */
+export interface NormalizedDoc {
+  text: string;
+  expansions: Expansion[];
+}
+
+/**
+ * Rewrites a document the way SearchCursor does — NFKD, then a case fold unless the search is
+ * case-sensitive — in a single pass rather than one call per code point.
+ *
+ * The cursor spends 90% of its time asking ICU about one character at a time, which is what
+ * makes counting matches in a large response slow. Doing it a character at a time still matters
+ * for the result, since it keeps NFKD from reordering marks across characters, so the
+ * granularity stays and only the repeated work goes: each distinct character is normalized once
+ * and the answer reused, and ASCII runs never reach ICU at all.
+ */
+export function normalizeDoc(text: string, caseSensitive: boolean): NormalizedDoc {
+  const rewritten = new Map<string, string>();
+  const expansions: Expansion[] = [];
+  let shift = 0;
+
+  const normalized = text.replace(
+    caseSensitive ? REWRITTEN_CASE_SENSITIVE : REWRITTEN,
+    (chunk: string, at: number) => {
+      // An ASCII run only ever folds case, which can't change its length
+      if (chunk.charCodeAt(0) < 0x80) return chunk.toLowerCase();
+
+      let out = rewritten.get(chunk);
+      if (out === undefined) {
+        out = chunk.normalize("NFKD");
+        if (!caseSensitive) out = out.toLowerCase();
+        rewritten.set(chunk, out);
+      }
+
+      if (out.length !== chunk.length) {
+        expansions.push({
+          normFrom: at + shift,
+          normTo: at + shift + out.length,
+          docFrom: at,
+          docTo: at + chunk.length,
+        });
+        shift += out.length - chunk.length;
+      }
+
+      return out;
+    },
+  );
+
+  return { text: normalized, expansions };
+}
+
+/** The query as SearchCursor compares it, which it normalizes whole rather than by character */
+export function normalizeSearch(search: string, caseSensitive: boolean): string {
+  const normalized = search.normalize("NFKD");
+  return caseSensitive ? normalized : normalized.toLowerCase();
+}
+
+/** Every occurrence of `needle`, skipping matches that overlap an earlier one */
+export function scanNormalized(doc: NormalizedDoc, needle: string): Match[] {
+  const matches: Match[] = [];
+  if (needle === "") return matches;
+
+  const { text } = doc;
+  let pos = text.indexOf(needle);
+  while (pos >= 0) {
+    let end = pos + needle.length;
+    // However the query was cut, a match ends on a whole code point, as the cursor's do
+    if (isLowSurrogate(text.charCodeAt(end))) end++;
+
+    matches.push({ from: docStart(doc, pos), to: docEnd(doc, end) });
+    if (matches.length > MAX_COUNT) break;
+
+    pos = text.indexOf(needle, resumeAfter(doc, end));
+  }
+
+  return matches;
+}
+
+/** The same through the query's own cursor, which handles regexps and whole words */
+export function scanQuery(state: EditorState, query: SearchQuery): Match[] {
+  const matches: Match[] = [];
+  const cursor = query.getCursor(state);
+
+  for (let result = cursor.next(); !result.done; result = cursor.next()) {
+    matches.push({ from: result.value.from, to: result.value.to });
+    if (matches.length > MAX_COUNT) break;
+  }
+
+  return matches;
+}
+
+const isLowSurrogate = (code: number) => code >= 0xdc00 && code <= 0xdfff;
+
+/** The last character expansion beginning at or before `offset`, if there is one */
+function expansionAt({ expansions }: NormalizedDoc, offset: number): Expansion | null {
+  let low = 0;
+  let high = expansions.length - 1;
+  let found: Expansion | null = null;
+
+  while (low <= high) {
+    const mid = (low + high) >> 1;
+    if (expansions[mid]!.normFrom <= offset) {
+      found = expansions[mid]!;
+      low = mid + 1;
+    } else {
+      high = mid - 1;
+    }
+  }
+
+  return found;
+}
+
+function docStart(doc: NormalizedDoc, offset: number): number {
+  const expansion = expansionAt(doc, offset);
+  if (expansion == null) return offset;
+  // A match starting inside a character's expansion starts at the character
+  return offset < expansion.normTo
+    ? expansion.docFrom
+    : offset - (expansion.normTo - expansion.docTo);
+}
+
+/**
+ * Where scanning picks up after a match ending at `offset`.
+ *
+ * The cursor moves through the document a character at a time, so once a match ends inside a
+ * character's expansion the rest of that expansion is behind it — "…" holds three dots but only
+ * ever counts as one match of ".".
+ */
+function resumeAfter(doc: NormalizedDoc, offset: number): number {
+  const expansion = expansionAt(doc, offset);
+  return expansion != null && offset > expansion.normFrom && offset < expansion.normTo
+    ? expansion.normTo
+    : offset;
+}
+
+function docEnd(doc: NormalizedDoc, offset: number): number {
+  const expansion = expansionAt(doc, offset);
+  if (expansion == null) return offset;
+  if (offset <= expansion.normFrom) return expansion.docFrom;
+  // A match ending inside a character's expansion covers the whole character
+  return offset < expansion.normTo
+    ? expansion.docTo
+    : offset - (expansion.normTo - expansion.docTo);
+}
+
+/** Position of the match holding the selection, counting from one, or 0 when it isn't on one */
+export function currentMatch(matches: Match[], selection: { from: number; to: number }): number {
+  let index = 0;
+  for (const match of matches) {
+    index++;
+    if (match.from <= selection.from && match.to >= selection.to) return index;
+  }
+  return 0;
+}
+
+/** The text a plain query looks for, or null when only the cursor can answer it */
+export function literalSearch(query: SearchQuery): string | null {
+  if (query.regexp || query.wholeWord || query.test != null) return null;
+  // Mirrors SearchQuery's own unquoting, which the published type doesn't expose
+  return query.literal
+    ? query.search
+    : query.search.replace(/\\([nrt\\])/g, (_, ch) =>
+        ch === "n" ? "\n" : ch === "r" ? "\r" : ch === "t" ? "\t" : "\\",
+      );
+}
+
+/**
+ * Finds the matches for the search panel, keeping the normalized document and the matches it
+ * last found, so neither moving the selection nor typing another character starts over.
+ */
+export class MatchCounter {
+  private doc: { doc: Text; caseSensitive: boolean; normalized: NormalizedDoc } | null = null;
+  private last: { doc: Text; query: SearchQuery; matches: Match[] } | null = null;
+
+  matches(state: EditorState, query: SearchQuery): Match[] {
+    const last = this.last;
+    if (last != null && last.doc === state.doc && last.query.eq(query)) {
+      return last.matches;
+    }
+
+    const matches = this.scan(state, query);
+    this.last = { doc: state.doc, query, matches };
+    return matches;
+  }
+
+  private scan(state: EditorState, query: SearchQuery): Match[] {
+    const search = literalSearch(query);
+    if (search == null) return scanQuery(state, query);
+
+    const doc = this.normalizedDoc(state.doc, query.caseSensitive);
+    return scanNormalized(doc, normalizeSearch(search, query.caseSensitive));
+  }
+
+  private normalizedDoc(doc: Text, caseSensitive: boolean): NormalizedDoc {
+    const cached = this.doc;
+    if (cached != null && cached.doc === doc && cached.caseSensitive === caseSensitive) {
+      return cached.normalized;
+    }
+
+    const normalized = normalizeDoc(doc.toString(), caseSensitive);
+    this.doc = { doc, caseSensitive, normalized };
+    return normalized;
+  }
+}
+
 /**
  * A CodeMirror extension that displays the total number of search matches
  * inside the built-in search panel.
@@ -10,6 +235,7 @@ export function searchMatchCount(): Extension {
   return ViewPlugin.fromClass(
     class {
       private countEl: HTMLElement | null = null;
+      private counter = new MatchCounter();
 
       constructor(private view: EditorView) {
         this.updateCount();
@@ -38,38 +264,21 @@ export function searchMatchCount(): Extension {
         }
 
         this.ensureCountEl();
+        if (this.countEl == null) return;
 
         if (!query.search) {
-          if (this.countEl) {
-            this.countEl.textContent = "0/0";
-          }
+          this.countEl.textContent = "0/0";
           return;
         }
 
-        const selection = state.selection.main;
-        let count = 0;
-        let currentIndex = 0;
-        const MAX_COUNT = 9999;
-        const cursor = query.getCursor(state);
-        for (let result = cursor.next(); !result.done; result = cursor.next()) {
-          count++;
-          const match = result.value;
-          if (match.from <= selection.from && match.to >= selection.to) {
-            currentIndex = count;
-          }
-          if (count > MAX_COUNT) break;
-        }
-
-        if (this.countEl) {
-          if (count > MAX_COUNT) {
-            this.countEl.textContent = `${MAX_COUNT}+`;
-          } else if (count === 0) {
-            this.countEl.textContent = "0/0";
-          } else if (currentIndex > 0) {
-            this.countEl.textContent = `${currentIndex}/${count}`;
-          } else {
-            this.countEl.textContent = `0/${count}`;
-          }
+        const matches = this.counter.matches(state, query);
+        if (matches.length > MAX_COUNT) {
+          this.countEl.textContent = `${MAX_COUNT}+`;
+        } else if (matches.length === 0) {
+          this.countEl.textContent = "0/0";
+        } else {
+          const current = currentMatch(matches, state.selection.main);
+          this.countEl.textContent = `${current}/${matches.length}`;
         }
       }
 

apps/yaak-client/components/core/Editor/twig/completion.test.ts

@@ -0,0 +1,155 @@
+/* oxlint-disable no-template-curly-in-string */
+import { CompletionContext } from "@codemirror/autocomplete";
+import { json } from "@codemirror/lang-json";
+import { EditorState, type Extension, type TransactionSpec } from "@codemirror/state";
+import type { EditorView } from "@codemirror/view";
+import { describe, expect, test } from "vite-plus/test";
+import { singleLineExtensions } from "../singleLine";
+import { twigCompletion, type TwigCompletionOption } from "./completion";
+import { parser } from "./twig";
+
+const options: TwigCompletionOption[] = [
+  { name: "someVar", label: "someVar", type: "variable", value: "value", onClick: () => {} },
+  { name: "uuid.v4", label: "uuid.v4", type: "function", args: [], value: null, onClick: () => {} },
+];
+const source = twigCompletion({ options });
+
+// Both keyboard acceptance and clicking a suggestion invoke Completion.apply.
+function complete(input: string, label: string, extensions: Extension = []) {
+  const cursor = input.indexOf("|");
+  if (cursor < 0) throw new Error("Missing cursor marker");
+  let state = EditorState.create({
+    doc: input.slice(0, cursor) + input.slice(cursor + 1),
+    selection: { anchor: cursor },
+    extensions,
+  });
+  const result = source(new CompletionContext(state, cursor, false));
+  const completion = result?.options.find((option) => option.label === label);
+  expect(completion).toBeDefined();
+  const view = {
+    get state() {
+      return state;
+    },
+    dispatch(spec: TransactionSpec) {
+      state = state.update(spec).state;
+    },
+  } as EditorView;
+  if (typeof completion?.apply !== "function" || !result) throw new Error("Missing apply");
+  completion.apply(view, completion, result.from, cursor);
+  return state;
+}
+
+function expectValidTag(state: EditorState, expected: string) {
+  expect(state.doc.toString()).toBe(expected);
+  const tags: string[] = [];
+  parser.parse(expected).iterate({
+    enter(node) {
+      expect(node.type.isError).toBe(false);
+      if (node.name === "Tag") tags.push(expected.slice(node.from, node.to));
+    },
+  });
+  expect(tags).toHaveLength(1);
+}
+
+describe("twig completion", () => {
+  test.each(["${[\nsome|", "${[ \n\n\tsome|", "${[\nsome|\n ]}", "${[\n |"])(
+    "completes across multiline whitespace: %s",
+    (input) => expectValidTag(complete(input, "someVar"), "${[ someVar ]}"),
+  );
+
+  test.each(["${[\nuuid.v|", "${[\n uuid.v|()\n ]}"])(
+    "completes a function across multiline whitespace: %s",
+    (input) => expectValidTag(complete(input, "uuid.v4"), "${[ uuid.v4() ]}"),
+  );
+
+  test("preserves surrounding lines and literal pipes", () => {
+    expect(complete("before\n${[\nsome|\n]}\na | b", "someVar").doc.toString()).toBe(
+      "before\n${[ someVar ]}\na | b",
+    );
+  });
+
+  test("does not search past non-whitespace for an opener or closer", () => {
+    expect(complete("prefix\nsome|\nother ]}", "someVar").doc.toString()).toBe(
+      "prefix\n${[ someVar ]}\nother ]}",
+    );
+    expect(complete("${[some|\nother ]}", "someVar").doc.toString()).toBe(
+      "${[ someVar ]}\nother ]}",
+    );
+  });
+
+  test.each(["${[|", "${[ |", "${[  |"])(
+    "offers completion immediately after a template opener: %s",
+    (input) => {
+      expectValidTag(complete(input, "someVar"), "${[ someVar ]}");
+    },
+  );
+
+  test.each(["$", "{", "${", '{"value": "'])(
+    "does not automatically offer empty-name completions after %s",
+    (doc) => {
+      const state = EditorState.create({ doc });
+      expect(source(new CompletionContext(state, doc.length, false))).toBeNull();
+    },
+  );
+
+  test.each(["uuid|", "${[uuid|", "${[ uuid| ]}"])(
+    "completes a namespace before wrapping the final function: %s",
+    (input) => {
+      const namespace = complete(input, "uuid.*");
+      expect(namespace.doc.toString()).toBe(input.replace("uuid|", "uuid."));
+      const cursor = namespace.selection.main.head;
+      const next = namespace.sliceDoc(0, cursor) + "|" + namespace.sliceDoc(cursor);
+      expectValidTag(complete(next, "uuid.v4"), "${[ uuid.v4() ]}");
+    },
+  );
+
+  test.each(["some|", "${[some|", "${[ some|", "${[  someVar|", "${[\tsome|"])(
+    "completes a variable in a single-line value: %s",
+    (input) => {
+      const state = complete(input, "someVar", singleLineExtensions());
+      expectValidTag(state, "${[ someVar ]}");
+      expect(state.selection.main.head).toBe(state.doc.length);
+    },
+  );
+
+  test.each(["${[some|]}", "${[ some| ]}", "${[someVar|]}"])(
+    "reuses closing delimiters: %s",
+    (input) => {
+      expectValidTag(complete(input, "someVar"), "${[ someVar ]}");
+    },
+  );
+
+  test.each(["uuid.v|", "${[uuid.v|", "${[ uuid.v| ]}", "${[uuid.v|()]}"])(
+    "completes a function: %s",
+    (input) => {
+      expectValidTag(complete(input, "uuid.v4"), "${[ uuid.v4() ]}");
+    },
+  );
+
+  test("preserves surrounding JSON and its closing punctuation", () => {
+    expectValidTag(
+      complete('{"value":"${[some|","other":1}', "someVar", json()),
+      '{"value":"${[ someVar ]}","other":1}',
+    );
+  });
+
+  test("preserves surrounding text and other complete tags", () => {
+    expect(complete("${[ someVar ]} ${[some|]} trailing", "someVar").doc.toString()).toBe(
+      "${[ someVar ]} ${[ someVar ]} trailing",
+    );
+  });
+
+  test("does not consume closing punctuation without a template opener", () => {
+    expect(complete("[some|]}", "someVar").doc.toString()).toBe("[${[ someVar ]}]}");
+  });
+
+  test("invalidates cached suggestions when typing delimiters or a namespace separator", () => {
+    const state = EditorState.create({ doc: "some" });
+    const result = source(new CompletionContext(state, 4, false));
+    expect(result?.validFor).toBeInstanceOf(RegExp);
+    const validFor = result?.validFor as RegExp;
+    expect(validFor.test("someVar")).toBe(true);
+    expect(validFor.test("some ${[some")).toBe(false);
+    expect(validFor.test("uuid.")).toBe(false);
+  });
+});

apps/yaak-client/components/core/Editor/twig/completion.ts

@@ -1,5 +1,6 @@
 import type { Completion, CompletionContext } from "@codemirror/autocomplete";
 import { startCompletion } from "@codemirror/autocomplete";
+import type { EditorState } from "@codemirror/state";
 import type { TemplateFunction } from "@yaakapp-internal/plugins";
 
 const openTag = "${[ ";
@@ -36,6 +37,22 @@ export interface TwigCompletionConfig {
 
 const MIN_MATCH_NAME = 1;
 
+// Only inspect adjacent whitespace, including newlines, rather than copying the
+// entire document to look for a delimiter in large request bodies.
+function skipWhitespace(state: EditorState, pos: number, direction: -1 | 1) {
+  while (direction === -1 ? pos > 0 : pos < state.doc.length) {
+    const from = direction === -1 ? pos - 1 : pos;
+    if (!/\s/.test(state.sliceDoc(from, from + 1))) break;
+    pos += direction;
+  }
+  return pos;
+}
+
+function findOpenTag(state: EditorState, from: number) {
+  const end = skipWhitespace(state, from, -1);
+  return end >= 3 && state.sliceDoc(end - 3, end) === "${[" ? end - 3 : null;
+}
+
 export function twigCompletion({ options }: TwigCompletionConfig) {
   return function completions(context: CompletionContext) {
     const toStartOfName = context.matchBefore(/[\w_.]*/);
@@ -44,7 +61,8 @@ export function twigCompletion({ options }: TwigCompletionConfig) {
     if (toMatch === null) return null;
 
     const matchLen = toMatch.to - toMatch.from;
-    if (!context.explicit && toMatch.from > 0 && matchLen < MIN_MATCH_NAME) {
+    const hasOpenTag = findOpenTag(context.state, toMatch.from) !== null;
+    if (!context.explicit && !hasOpenTag && toMatch.from > 0 && matchLen < MIN_MATCH_NAME) {
       return null;
     }
 
@@ -83,6 +101,16 @@ export function twigCompletion({ options }: TwigCompletionConfig) {
             detail: o.type,
             type: o.type === "variable" ? "variable" : "function",
             apply: (view, _completion, from, to) => {
+              // Keep the completion range name-only for filtering, but replace a manually
+              // typed opener when accepting (through either the keyboard or the menu).
+              const opener = findOpenTag(view.state, from);
+              if (opener !== null) {
+                from = opener;
+                const hasParentheses =
+                  o.type === "function" && view.state.sliceDoc(to, to + 2) === "()";
+                const closer = skipWhitespace(view.state, to + (hasParentheses ? 2 : 0), 1);
+                if (view.state.sliceDoc(closer, closer + 2) === "]}") to = closer + 2;
+              }
               const insert = openTag + inner + closeTag;
               view.dispatch({
                 changes: { from, to, insert: insert },
@@ -103,7 +131,8 @@ export function twigCompletion({ options }: TwigCompletionConfig) {
 
     return {
       matchLen,
-      validFor: () => true, // Not really sure why this is all it needs
+      // Delimiters change the replacement range; dots change namespace options.
+      validFor: /^\w*$/,
       from: toMatch.from,
       options: sortedCompletions,
     };

apps/yaak-client/components/core/Editor/twig/highlight.ts

@@ -4,4 +4,6 @@ export const highlight = styleTags({
   TagOpen: t.bracket,
   TagClose: t.bracket,
   TagContent: t.keyword,
+  // Strings are part of the tag body, so they get the same color as the rest of it
+  TagString: t.keyword,
 });

apps/yaak-client/components/core/Editor/twig/twig.grammar

@@ -1,13 +1,17 @@
 @top Template { (Tag | Text)* }
 
+// `TagString` keeps a quoted argument from closing the tag, so `${[ fn(a='x]}y') ]}` stays a
+// single Tag. Only a terminated string matches, so a half-typed `'` degrades to TagContent and
+// the tag still closes at the next `]}`.
 @local tokens {
   TagClose { "]}" }
+  TagString { "'" (![\\'] | "\\" _)* "'" }
   @else TagContent
 }
 
 @skip { } {
   TagOpen { "${[" }
-  Tag { TagOpen (TagContent)+ TagClose }
+  Tag { TagOpen (TagContent | TagString)+ TagClose }
 }
 
 @tokens {

apps/yaak-client/components/core/Editor/twig/twig.terms.ts

@@ -3,5 +3,6 @@ export const Template = 1,
   Tag = 2,
   TagOpen = 3,
   TagContent = 4,
-  TagClose = 5,
-  Text = 6;
+  TagString = 5,
+  TagClose = 6,
+  Text = 7;

apps/yaak-client/components/core/Editor/twig/twig.test.ts

@@ -23,6 +23,10 @@ function hasError(input: string): boolean {
   return getNodeNames(input).includes("⚠");
 }
 
+function countTags(input: string): number {
+  return getNodeNames(input).filter((n) => n === "Tag").length;
+}
+
 describe("twig grammar", () => {
   describe("${[var]} format (valid template tags)", () => {
     test("parses simple variable as Tag", () => {
@@ -83,6 +87,50 @@ describe("twig grammar", () => {
     });
   });
 
+  describe("quoted strings inside tags", () => {
+    test("keeps a quoted `]}` inside the tag", () => {
+      const input = "${[ fn(a='x]}y') ]}";
+      expect(countTags(input)).toBe(1);
+      expect(hasError(input)).toBe(false);
+    });
+
+    test("keeps an escaped quote inside the string", () => {
+      const input = "${[ fn(a='it\\'s ]}') ]}";
+      expect(countTags(input)).toBe(1);
+      expect(hasError(input)).toBe(false);
+    });
+
+    test("parses a b64 string as one Tag", () => {
+      const input = "${[ b64'Zm9v' ]}";
+      expect(countTags(input)).toBe(1);
+      expect(hasError(input)).toBe(false);
+    });
+
+    test("closes at the first `]}` when a quote is left unterminated", () => {
+      // Half-typed strings must not swallow the rest of the document
+      const input = "${[ fn(a='unterminated ]} after";
+      expect(countTags(input)).toBe(1);
+      expect(hasError(input)).toBe(false);
+      const tag = parser.parse(input).topNode.getChild("Tag");
+      expect(input.slice(tag?.from ?? 0, tag?.to ?? 0)).toBe("${[ fn(a='unterminated ]}");
+    });
+
+    test("handles two tags with quoted `]}` in the same string", () => {
+      const input = "${[ a(x='1]}') ]} and ${[ b(y='2]}') ]}";
+      expect(countTags(input)).toBe(2);
+      expect(hasError(input)).toBe(false);
+    });
+
+    test("keeps JSON around a tag with a quoted `]}` intact", () => {
+      const tag = "${[ fn(a='x]}y') ]}";
+      const json = '{"a": "' + tag + '"}';
+      expect(countTags(json)).toBe(1);
+      expect(hasError(json)).toBe(false);
+      const node = parser.parse(json).topNode.getChild("Tag");
+      expect(json.slice(node?.from ?? 0, node?.to ?? 0)).toBe(tag);
+    });
+  });
+
   describe("edge cases", () => {
     test("handles $ at end of string", () => {
       expect(hasError("hello$")).toBe(false);

apps/yaak-client/components/core/Editor/twig/twig.ts

@@ -4,17 +4,24 @@ import { highlight } from "./highlight";
 export const parser = LRParser.deserialize({
   version: 14,
   states:
-    "!^QQOPOOOOOO'#C_'#C_OYOQO'#C^OOOO'#Cc'#CcQQOPOOOOOO'#Cd'#CdO_OQO,58xOOOO-E6a-E6aOOOO-E6b-E6bOOOO1G.d1G.d",
-  stateData: "g~OUROYPO~OSTO~OSTOTXO~O",
-  goto: "nXPPY^PPPbhTROSTQOSQSORVSQUQRWU",
-  nodeNames: "⚠ Template Tag TagOpen TagContent TagClose Text",
-  maxTerm: 10,
+    "!^QQOPOOOOOO'#C_'#C_OYOQO'#C^OOOO'#Cd'#CdQQOPOOOOOO'#Ce'#CeObOQO,58xOOOO-E6b-E6bOOOO-E6c-E6cOOOO1G.d1G.d",
+  stateData: "m~OVROZPO~OSTOTTO~OSTOTTOUXO~O",
+  goto: "oYPPZ_PPPPciTROSTQOSQSORVSQUQRWU",
+  nodeNames: "⚠ Template Tag TagOpen TagContent TagString TagClose Text",
+  maxTerm: 11,
   propSources: [highlight],
   skippedNodes: [0],
   repeatNodeCount: 2,
   tokenData:
-    "#{~RTOtbtu!zu;'Sb;'S;=`!o<%lOb~gTU~Otbtuvu;'Sb;'S;=`!o<%lOb~yVO#ob#o#p!`#p;'Sb;'S;=`!o<%l~b~Ob~~!u~!cSO!}b#O;'Sb;'S;=`!o<%lOb~!rP;=`<%lb~!zOU~~!}VO#ob#o#p#d#p;'Sb;'S;=`!o<%l~b~Ob~~!u~#gTO!}b!}#O#v#O;'Sb;'S;=`!o<%lOb~#{OY~",
-  tokenizers: [1, new LocalTokenGroup("b~RP#P#QU~XP#q#r[~aOT~~", 17, 4)],
+    "#{~RTOtbtu!zu;'Sb;'S;=`!o<%lOb~gTV~Otbtuvu;'Sb;'S;=`!o<%lOb~yVO#ob#o#p!`#p;'Sb;'S;=`!o<%l~b~Ob~~!u~!cSO!}b#O;'Sb;'S;=`!o<%lOb~!rP;=`<%lb~!zOV~~!}VO#ob#o#p#d#p;'Sb;'S;=`!o<%l~b~Ob~~!u~#gTO!}b!}#O#v#O;'Sb;'S;=`!o<%lOb~#{OZ~",
+  tokenizers: [
+    1,
+    new LocalTokenGroup(
+      "#R~RQwxX#P#Q!u~[VOwXwxqx#OX#O#Pv#P;'SX;'S;=`!o<%lOX~vOT~~yRO;'SX;'S;=`!S;=`OX~!VWOwXwxqx#OX#O#Pv#P;'SX;'S;=`!o;=`<%lX<%lOX~!rP;=`<%lX~!xP#q#r!{~#QOU~~",
+      94,
+      4,
+    ),
+  ],
   topRules: { Template: [0, 1] },
   tokenPrec: 0,
 });

apps/yaak-client/components/core/Link.tsx

@@ -1,4 +1,5 @@
 import { Link as RouterLink } from "@tanstack/react-router";
+import { platform } from "@yaakapp-internal/platform";
 import classNames from "classnames";
 import type { HTMLAttributes } from "react";
 import { appInfo } from "../../lib/appInfo";
@@ -33,7 +34,10 @@ export function Link({ href, children, noUnderline, className, ...other }: Props
         href={finalHref}
         target="_blank"
         rel={isYaakLink ? undefined : "noopener noreferrer"}
-        onClick={(e) => e.preventDefault()}
+        onClick={(e) => {
+          e.preventDefault();
+          void platform.openUrl(finalHref);
+        }}
         className={className}
         {...other}
       >

apps/yaak-client/components/core/PairEditor.tsx

@@ -113,7 +113,15 @@ function toPairData({ commitName: _commitName, ...pair }: EditablePairWithId): P
 /** Max number of pairs to show before prompting the user to reveal the rest */
 const MAX_INITIAL_PAIRS = 30;
 
-export function PairEditor({
+// Keyed on `stateKey` so no state survives a change of owner. Row ids alone can't tell owners
+// apart — two pair sets can share ids (eg. one duplicated from the other), and the same-rows
+// fast path below would swap in the new data without rebuilding the row editors, leaving any
+// still-focused input showing the old owner's text.
+export function PairEditor(props: PairEditorProps) {
+  return <PairEditorInner key={props.stateKey} {...props} />;
+}
+
+function PairEditorInner({
   allowFileValues,
   allowMultilineValues,
   className,

apps/yaak-client/components/core/PathList.tsx

@@ -0,0 +1,124 @@
+import { Icon, type IconProps } from "@yaakapp-internal/ui";
+import classNames from "classnames";
+import { forwardRef, type ReactNode } from "react";
+import { Dropdown, type DropdownItem } from "./Dropdown";
+import { IconButton } from "./IconButton";
+
+export interface PathListItem {
+  path: string;
+  icon: IconProps["icon"];
+  /** Replaces the parent-path line under the name */
+  subtitle?: ReactNode;
+  failed?: boolean;
+}
+
+interface Props {
+  items: PathListItem[];
+  disabled?: boolean;
+  onRemove: (path: string) => void;
+  addItems: DropdownItem[];
+  addLabel: string;
+  addHint?: string;
+  hovering?: boolean;
+  /** Rows rendered between the items and the add row, such as an inline input */
+  children?: ReactNode;
+}
+
+/** Selected files, folders, or URLs as cards, with a dashed add row that opens a menu. */
+export const PathList = forwardRef<HTMLDivElement, Props>(function PathList(
+  { items, disabled, onRemove, addItems, addLabel, addHint, hovering, children },
+  ref,
+) {
+  return (
+    <div
+      ref={ref}
+      className={classNames(
+        "flex flex-col gap-1.5 rounded-lg -m-1.5 p-1.5",
+        hovering && "bg-surface-highlight",
+      )}
+    >
+      {items.map((item) => {
+        const { name, parent } = splitPath(item.path);
+        return (
+          <div
+            key={item.path}
+            className={classNames(
+              "flex items-center gap-3 rounded-md pl-3 pr-1.5 py-2",
+              item.failed ? "bg-danger/10" : "bg-surface-highlight/50",
+            )}
+          >
+            <Icon
+              icon={item.icon}
+              className={classNames("shrink-0", item.failed ? "text-danger" : "text-text-subtle")}
+            />
+            <div className="min-w-0 flex-1" title={item.path}>
+              <div className="truncate text-sm font-semibold">{name}</div>
+              <div
+                className={classNames(
+                  "flex items-center gap-1.5 truncate text-xs",
+                  item.failed ? "text-danger" : "text-text-subtlest",
+                )}
+              >
+                {item.subtitle ??
+                  (parent !== "" && <span className="truncate font-mono">{parent}</span>)}
+              </div>
+            </div>
+            <IconButton
+              size="xs"
+              icon="trash"
+              iconColor="secondary"
+              title={`Remove ${name}`}
+              disabled={disabled}
+              className="shrink-0"
+              onClick={() => onRemove(item.path)}
+            />
+          </div>
+        );
+      })}
+      {children}
+      <Dropdown items={addItems}>
+        <button
+          type="button"
+          disabled={disabled}
+          className={classNames(
+            "h-sm w-full flex items-center gap-2 rounded-md border border-dashed px-3 text-sm text-text-subtle",
+            "hocus:border-border-focus hocus:text-text disabled:opacity-disabled",
+            hovering ? "border-notice" : "border-border",
+          )}
+        >
+          <Icon icon="plus" size="sm" className="text-text-subtlest" />
+          {hovering ? (
+            "Drop to add"
+          ) : (
+            <>
+              <span>{addLabel}</span>
+              {addHint != null && (
+                <span className="ml-auto text-xs text-text-subtlest">{addHint}</span>
+              )}
+            </>
+          )}
+        </button>
+      </Dropdown>
+    </div>
+  );
+});
+
+/** The last segment as the name and everything before it, shortened, as the parent. */
+export function splitPath(path: string): { name: string; parent: string } {
+  if (/^[a-z][a-z0-9+.-]*:\/\//i.test(path)) {
+    try {
+      const url = new URL(path);
+      const segments = url.pathname.split("/").filter(Boolean);
+      const name = segments.at(-1) ?? url.host;
+      const parent = segments.length > 0 ? `${url.host}/${segments.slice(0, -1).join("/")}` : "";
+      return { name, parent: parent.replace(/\/$/, "") };
+    } catch {
+      return { name: path, parent: "" };
+    }
+  }
+  const parts = path.split(/[/\\]/).filter(Boolean);
+  const name = parts.at(-1) ?? path;
+  const dirs = parts.slice(0, -1);
+  const parent = dirs.length > 3 ? `…/${dirs.slice(-3).join("/")}` : dirs.join("/");
+  return { name, parent };
+}

apps/yaak-client/components/core/PlainInput.tsx

@@ -205,6 +205,7 @@ export const PlainInput = forwardRef<{ focus: () => void }, PlainInputProps>(fun
             autoComplete="off"
             autoCapitalize="off"
             autoCorrect="off"
+            writingsuggestions="false"
             inputMode={inputMode}
             onChange={(e) => handleChange(e.target.value)}
             onPaste={(e) => onPaste?.(e.clipboardData.getData("Text"))}

apps/yaak-client/components/core/Prompt.tsx

@@ -1,10 +1,9 @@
 import type { FormInput, JsonPrimitive } from "@yaakapp-internal/plugins";
-import { HStack } from "@yaakapp-internal/ui";
 import type { FormEvent } from "react";
 import { useCallback, useEffect, useRef, useState } from "react";
 import { generateId } from "../../lib/generateId";
 import { DynamicForm } from "../DynamicForm";
-import { Button } from "./Button";
+import { DialogFooter } from "./Dialog";
 
 export interface PromptProps {
   inputs: FormInput[];
@@ -48,19 +47,15 @@ export function Prompt({
   const id = `prompt.form.${useRef(generateId()).current}`;
 
   return (
-    <form
-      className="grid grid-rows-[auto_auto] grid-cols-[minmax(0,1fr)] gap-4 mb-4"
-      onSubmit={handleSubmit}
-    >
+    <form id={id} className="grid grid-cols-[minmax(0,1fr)] mb-2" onSubmit={handleSubmit}>
       <DynamicForm inputs={inputs} onChange={setValue} data={value} stateKey={id} />
-      <HStack space={2} justifyContent="end">
-        <Button onClick={onCancel} variant="border" color="secondary">
-          {cancelText || "Cancel"}
-        </Button>
-        <Button type="submit" color="primary">
-          {confirmText || "Done"}
-        </Button>
-      </HStack>
+      <DialogFooter
+        inline
+        actions={[
+          { label: cancelText || "Cancel", onClick: onCancel },
+          { label: confirmText || "Done", color: "primary", form: id },
+        ]}
+      />
     </form>
   );
 }

apps/yaak-client/components/core/SegmentedControl.tsx

@@ -6,6 +6,7 @@ import { useStateWithDeps } from "../../hooks/useStateWithDeps";
 import { generateId } from "../../lib/generateId";
 import { Button } from "./Button";
 import { IconButton, type IconButtonProps } from "./IconButton";
+import { IconTooltip } from "./IconTooltip";
 import { Label } from "./Label";
 
 interface Props<T extends string> {
@@ -36,11 +37,15 @@ export function SegmentedControl<T extends string>({
   const containerRef = useRef<HTMLDivElement>(null);
   const id = useRef(`input-${generateId()}`);
 
+  // A visually hidden label has nowhere to show the help, so the last option carries it
+  const inlineHelp =
+    hideLabel && help ? <IconTooltip tabIndex={-1} content={help} iconSize="xs" /> : null;
+
   return (
     <div className="w-full grid">
       <Label
         htmlFor={id.current}
-        help={help}
+        help={hideLabel ? undefined : help}
         visuallyHidden={hideLabel}
         className={classNames(labelClassName)}
       >
@@ -78,9 +83,10 @@ export function SegmentedControl<T extends string>({
           }
         }}
       >
-        {options.map((o) => {
+        {options.map((o, i) => {
           const isSelected = selectedValue === o.value;
           const isActive = value === o.value;
+          const rightSlot = i === options.length - 1 ? inlineHelp : null;
           if (o.icon == null) {
             return (
               <Button
@@ -95,6 +101,7 @@ export function SegmentedControl<T extends string>({
                   isActive && "text-text!",
                   "focus:ring-1 focus:ring-border-focus",
                 )}
+                rightSlot={rightSlot}
                 onClick={() => onChange(o.value)}
               >
                 {o.label}
@@ -117,6 +124,7 @@ export function SegmentedControl<T extends string>({
                 )}
                 title={o.label}
                 icon={o.icon}
+                rightSlot={rightSlot}
                 onClick={() => onChange(o.value)}
               />
             );

apps/yaak-client/components/core/Select.tsx

@@ -119,9 +119,13 @@ export function Select<T extends string>({
           )}
         >
           <Button
-            className="w-full text-sm font-mono"
+            className={classNames(
+              "w-full text-sm font-mono",
+              disabled && "border-dotted",
+              isInvalidSelection && "border-danger",
+            )}
             justify="start"
-            variant="border"
+            variant="input"
             size={size}
             leftSlot={leftSlot}
             disabled={disabled}

apps/yaak-client/components/git/BranchSelectionDialog.tsx

@@ -1,43 +0,0 @@
-import { HStack, VStack } from "@yaakapp-internal/ui";
-import { useState } from "react";
-import { Button } from "../core/Button";
-import { Select } from "../core/Select";
-
-interface Props {
-  branches: string[];
-  onCancel: () => void;
-  onSelect: (branch: string) => void;
-  selectText: string;
-}
-
-export function BranchSelectionDialog({ branches, onCancel, onSelect, selectText }: Props) {
-  const [branch, setBranch] = useState<string>("__NONE__");
-  return (
-    <VStack
-      className="mb-4"
-      as="form"
-      space={4}
-      onSubmit={(e) => {
-        e.preventDefault();
-        onSelect(branch);
-      }}
-    >
-      <Select
-        name="branch"
-        hideLabel
-        label="Branch"
-        value={branch}
-        options={branches.map((b) => ({ label: b, value: b }))}
-        onChange={setBranch}
-      />
-      <HStack space={2} justifyContent="end">
-        <Button onClick={onCancel} variant="border" color="secondary">
-          Cancel
-        </Button>
-        <Button type="submit" color="primary">
-          {selectText}
-        </Button>
-      </HStack>
-    </VStack>
-  );
-}

apps/yaak-client/components/git/GitCommitDialog.tsx

@@ -1,4 +1,4 @@
-import type { GitStatusEntry } from "@yaakapp-internal/git";
+import type { GitStatus, GitStatusEntry } from "@yaakapp-internal/git";
 import { useGit } from "@yaakapp-internal/git";
 import type {
   Environment,
@@ -9,8 +9,7 @@ import type {
   Workspace,
 } from "@yaakapp-internal/models";
 import { Banner, HStack, Icon, InlineCode, SplitLayout } from "@yaakapp-internal/ui";
-import classNames from "classnames";
-import { useCallback, useMemo, useState } from "react";
+import { type ComponentProps, useCallback, useMemo, useState } from "react";
 import { modelToYaml } from "../../lib/diffYaml";
 import { trackFeatureUsage } from "../../lib/featureFeedback";
 import { resolvedModelName } from "../../lib/resolvedModelName";
@@ -19,8 +18,11 @@ import { showErrorToast } from "../../lib/toast";
 import { sync } from "../../init/sync";
 import { CommercialUseBanner } from "../CommercialUseBanner";
 import { Button } from "../core/Button";
+import { Chip } from "../core/Chip";
 import type { CheckboxProps } from "../core/Checkbox";
 import { Checkbox } from "../core/Checkbox";
+import type { CheckboxTreeNode } from "../core/CheckboxTree";
+import { CheckboxTree } from "../core/CheckboxTree";
 import { DiffViewer } from "../core/Editor/DiffViewer";
 import { Input } from "../core/Input";
 import { Separator } from "../core/Separator";
@@ -43,10 +45,7 @@ interface CommitTreeNode {
 
 export function GitCommitDialog({ syncDir, onDone, workspace }: Props) {
   const callbacks = useGitCallbacks(syncDir);
-  const [{ status }, { commit, commitAndPush, add, unstage, restore }] = useGit(
-    syncDir,
-    callbacks,
-  );
+  const [{ status }, { commit, commitAndPush, add, unstage, restore }] = useGit(syncDir, callbacks);
   const [isPushing, setIsPushing] = useState(false);
   const [commitError, setCommitError] = useState<string | null>(null);
   const [message, setMessage] = useState<string>("");
@@ -143,6 +142,15 @@ export function GitCommitDialog({ syncDir, onDone, workspace }: Props) {
     return next(workspace, []);
   }, [workspace, internalEntries]);
 
+  const treeNode: CheckboxTreeNode<CommitTreeNode> | null = useMemo(() => {
+    const toTreeNode = (n: CommitTreeNode): CheckboxTreeNode<CommitTreeNode> => ({
+      key: n.status.relaPath + n.status.status + n.status.staged,
+      data: n,
+      children: n.children.map(toTreeNode),
+    });
+    return tree == null ? null : toTreeNode(tree);
+  }, [tree]);
+
   const checkNode = useCallback(
     (treeNode: CommitTreeNode) => {
       const checked = nodeCheckedStatus(treeNode);
@@ -190,7 +198,7 @@ export function GitCommitDialog({ syncDir, onDone, workspace }: Props) {
     [restore],
   );
 
-  if (tree == null) {
+  if (tree == null || treeNode == null) {
     return null;
   }
 
@@ -221,12 +229,18 @@ export function GitCommitDialog({ syncDir, onDone, workspace }: Props) {
                   style={innerStyle}
                   className="h-full overflow-y-auto pb-3 pr-0.5 transform-cpu"
                 >
-                  <TreeNodeChildren
-                    node={tree}
-                    depth={0}
-                    onCheck={checkNode}
-                    onSelect={handleSelectChild}
-                    selectedPath={selectedEntry?.relaPath ?? null}
+                  <CheckboxTree
+                    node={treeNode}
+                    checked={(n) => nodeCheckedStatus(n.data)}
+                    onCheck={(n) => checkNode(n.data)}
+                    checkboxTitle={(n) =>
+                      nodeCheckedStatus(n.data) ? "Unstage change" : "Stage change"
+                    }
+                    isRelevant={(n) => n.data.status.status !== "current"}
+                    canSelectRow={(n) => n.data.status.status !== "current"}
+                    onSelectRow={(n) => handleSelectChild(n.data.status)}
+                    isRowSelected={(n) => selectedEntry?.relaPath === n.data.status.relaPath}
+                    renderRow={(n) => <CommitTreeRow node={n.data} />}
                   />
                   {externalEntries.find((e) => e.status !== "current") && (
                     <>
@@ -244,10 +258,7 @@ export function GitCommitDialog({ syncDir, onDone, workspace }: Props) {
                 </div>
               )}
               secondSlot={({ style: innerStyle }) => (
-                <div
-                  style={innerStyle}
-                  className="grid grid-rows-[minmax(0,1fr)_auto] gap-3 pb-2"
-                >
+                <div style={innerStyle} className="grid grid-rows-[minmax(0,1fr)_auto] gap-3 pb-2">
                   <Input
                     className="text-base! font-sans rounded-md"
                     placeholder="Commit message..."
@@ -301,96 +312,30 @@ export function GitCommitDialog({ syncDir, onDone, workspace }: Props) {
   );
 }
 
-function TreeNodeChildren({
-  node,
-  depth,
-  onCheck,
-  onSelect,
-  selectedPath,
-}: {
-  node: CommitTreeNode | null;
-  depth: number;
-  onCheck: (node: CommitTreeNode, checked: boolean) => void;
-  onSelect: (entry: GitStatusEntry) => void;
-  selectedPath: string | null;
-}) {
-  if (node === null) return null;
-  if (!isNodeRelevant(node)) return null;
-
-  const checked = nodeCheckedStatus(node);
-  const isSelected = selectedPath === node.status.relaPath;
-
+function CommitTreeRow({ node }: { node: CommitTreeNode }) {
   return (
-    <div
-      className={classNames(
-        depth > 0 && "pl-4 ml-2 border-l border-dashed border-border-subtle relative",
-      )}
-    >
-      <div
-        className={classNames(
-          "relative flex gap-1 w-full h-xs items-center",
-          isSelected ? "text-text" : "text-text-subtle",
-        )}
-      >
-        {isSelected && (
-          <div className="absolute left-[-100vw] right-0 top-0 bottom-0 bg-surface-active opacity-30 -z-10" />
-        )}
-        <Checkbox
-          checked={checked}
-          title={checked ? "Unstage change" : "Stage change"}
-          hideLabel
-          onChange={(checked) => onCheck(node, checked)}
+    <>
+      {node.model.model !== "http_request" &&
+      node.model.model !== "grpc_request" &&
+      node.model.model !== "websocket_request" ? (
+        <Icon
+          color="secondary"
+          icon={
+            node.model.model === "folder"
+              ? "folder"
+              : node.model.model === "environment"
+                ? "variable"
+                : "house"
+          }
         />
-        <button
-          type="button"
-          className={classNames("flex-1 min-w-0 flex items-center gap-1 px-1 py-0.5 text-left")}
-          onClick={() => node.status.status !== "current" && onSelect(node.status)}
-        >
-          {node.model.model !== "http_request" &&
-          node.model.model !== "grpc_request" &&
-          node.model.model !== "websocket_request" ? (
-            <Icon
-              color="secondary"
-              icon={
-                node.model.model === "folder"
-                  ? "folder"
-                  : node.model.model === "environment"
-                    ? "variable"
-                    : "house"
-              }
-            />
-          ) : (
-            <span aria-hidden className="w-4" />
-          )}
-          <div className="truncate flex-1">{resolvedModelName(node.model)}</div>
-          {node.status.status !== "current" && (
-            <InlineCode
-              className={classNames(
-                "py-0 bg-transparent w-24 text-center shrink-0",
-                node.status.status === "modified" && "text-info",
-                node.status.status === "untracked" && "text-success",
-                node.status.status === "removed" && "text-danger",
-              )}
-            >
-              {node.status.status}
-            </InlineCode>
-          )}
-        </button>
-      </div>
-
-      {node.children.map((childNode) => {
-        return (
-          <TreeNodeChildren
-            key={childNode.status.relaPath + childNode.status.status + childNode.status.staged}
-            node={childNode}
-            depth={depth + 1}
-            onCheck={onCheck}
-            onSelect={onSelect}
-            selectedPath={selectedPath}
-          />
-        );
-      })}
-    </div>
+      ) : (
+        <span aria-hidden className="w-4" />
+      )}
+      <div className="truncate flex-1">{resolvedModelName(node.model)}</div>
+      {node.status.status !== "current" && (
+        <Chip color={statusColor(node.status.status)}>{node.status.status}</Chip>
+      )}
+    </>
   );
 }
 
@@ -422,16 +367,9 @@ function ExternalTreeNode({
         <div className="grid grid-cols-[auto_minmax(0,1fr)_auto] gap-1 w-full items-center">
           <Icon color="secondary" icon="file_code" />
           <div className="truncate">{displayPath}</div>
-          <InlineCode
-            className={classNames(
-              "py-0 ml-auto bg-transparent w-24 text-center",
-              entry.status === "modified" && "text-info",
-              entry.status === "untracked" && "text-success",
-              entry.status === "removed" && "text-danger",
-            )}
-          >
+          <Chip className="ml-auto" color={statusColor(entry.status)}>
             {entry.status}
-          </InlineCode>
+          </Chip>
         </div>
       }
     />
@@ -495,15 +433,6 @@ function setCheckedAndChildren(
   if (toUnstage.length > 0) unstage({ relaPaths: toUnstage });
 }
 
-function isNodeRelevant(node: CommitTreeNode): boolean {
-  if (node.status.status !== "current") {
-    return true;
-  }
-
-  // Recursively check children
-  return node.children.some((c) => isNodeRelevant(c));
-}
-
 function DiffPanel({
   entry,
   onDiscardChanges,
@@ -526,13 +455,28 @@ function DiffPanel({
           size="2xs"
           variant="border"
           onClick={() => onDiscardChanges(entry)}
-        >Discard Changes</Button>
+        >
+          Discard Changes
+        </Button>
       </div>
-      <DiffViewer
-        original={prevYaml ?? ""}
-        modified={nextYaml ?? ""}
-        className="flex-1 min-h-0"
-      />
+      <DiffViewer original={prevYaml ?? ""} modified={nextYaml ?? ""} className="flex-1 min-h-0" />
     </div>
   );
 }
+
+function statusColor(status: GitStatus): ComponentProps<typeof Chip>["color"] {
+  switch (status) {
+    case "modified":
+      return "info";
+    case "untracked":
+      return "success";
+    case "removed":
+      return "danger";
+    case "conflict":
+      return "warning";
+    case "current":
+    case "renamed":
+    case "type_change":
+      return "default";
+  }
+}

apps/yaak-client/components/git/diverged.tsx

@@ -1,8 +1,8 @@
 import type { DivergedStrategy } from "@yaakapp-internal/git";
-import { HStack, InlineCode } from "@yaakapp-internal/ui";
+import { InlineCode } from "@yaakapp-internal/ui";
 import { useState } from "react";
 import { showDialog } from "../../lib/dialog";
-import { Button } from "../core/Button";
+import { DialogFooter } from "../core/Dialog";
 import { RadioCards } from "../core/RadioCards";
 
 type Resolution = "force_reset" | "merge";
@@ -34,7 +34,7 @@ function DivergedDialog({ remote, branch, onResult, onHide }: DivergedDialogProp
   };
 
   return (
-    <div className="flex flex-col gap-4 mb-4">
+    <div className="flex flex-col gap-4">
       <p className="text-text-subtle">
         Your local branch has diverged from{" "}
         <InlineCode>
@@ -59,18 +59,18 @@ function DivergedDialog({ remote, branch, onResult, onHide }: DivergedDialogProp
           },
         ]}
       />
-      <HStack space={2} justifyContent="start" className="flex-row-reverse">
-        <Button
-          color={selected === "force_reset" ? "danger" : "primary"}
-          disabled={selected == null}
-          onClick={handleSubmit}
-        >
-          {selected != null ? resolutionLabel[selected] : "Select an option"}
-        </Button>
-        <Button variant="border" onClick={handleCancel}>
-          Cancel
-        </Button>
-      </HStack>
+      <DialogFooter
+        inline
+        actions={[
+          { label: "Cancel", onClick: handleCancel },
+          {
+            label: selected != null ? resolutionLabel[selected] : "Select an option",
+            color: selected === "force_reset" ? "danger" : "primary",
+            disabled: selected == null,
+            onClick: handleSubmit,
+          },
+        ]}
+      />
     </div>
   );
 }
@@ -86,10 +86,8 @@ export async function promptDivergedStrategy({
     showDialog({
       id: "git-diverged",
       title: "Branches Diverged",
-      hideX: true,
       size: "sm",
-      disableBackdropClose: true,
-      onClose: () => resolve("cancel"),
+      disableClose: true,
       render: ({ hide }) =>
         DivergedDialog({
           remote,

apps/yaak-client/components/responseViewers/PdfViewer.tsx

@@ -3,18 +3,13 @@ import "react-pdf/dist/Page/AnnotationLayer.css";
 import "./PdfViewer.css";
 import type { PDFDocumentProxy } from "pdfjs-dist";
 import { useMemo, useRef, useState } from "react";
-import { Document, Page } from "react-pdf";
+import { Document, Page, pdfjs } from "react-pdf";
 import { useContainerSize } from "@yaakapp-internal/ui";
-import { fireAndForget } from "../../lib/fireAndForget";
+import pdfWorkerUrl from "./pdfWorker?worker&url";
 
-fireAndForget(
-  import("react-pdf").then(({ pdfjs }) => {
-    pdfjs.GlobalWorkerOptions.workerSrc = new URL(
-      "pdfjs-dist/build/pdf.worker.min.mjs",
-      import.meta.url,
-    ).toString();
-  }),
-);
+// Document can start loading during render, so configure its worker synchronously.
+// Vite bundles the installed PDF.js worker as a local asset, including offline builds.
+pdfjs.GlobalWorkerOptions.workerSrc = new URL(pdfWorkerUrl, import.meta.url).toString();
 
 interface Props {
   /** A URL for the body the host already stored. */
@@ -59,6 +54,8 @@ export function PdfViewer({ bodyUrl, data }: Props) {
   return (
     <div ref={containerRef} className="w-full h-full overflow-y-auto">
       <Document
+        // Keep the copied data stable: suspending the initial mount discards useMemo.
+        suspense={false}
         file={src}
         options={options}
         onLoadSuccess={onDocumentLoadSuccess}

apps/yaak-client/components/responseViewers/ResponseBreadcrumbBar.tsx

@@ -0,0 +1,192 @@
+import { Icon } from "@yaakapp-internal/ui";
+import classNames from "classnames";
+import { useCallback, useEffect, useLayoutEffect, useRef, useState } from "react";
+import type { JsonPathSegment } from "../core/Editor/json/jsonPath";
+import { IconButton } from "../core/IconButton";
+import { Tooltip } from "../core/Tooltip";
+
+interface Props {
+  segments: JsonPathSegment[];
+  appliedFilter: string | null;
+  /**
+   * How many leading segments make up the applied filter. `null` when unfiltered, or
+   * when the filter isn't a plain path and is shown as raw text instead.
+   */
+  appliedDepth: number | null;
+  filterError: boolean;
+  /** Called with the number of leading segments to filter to. `0` clears the filter. */
+  onSelect: (count: number) => void;
+}
+
+/**
+ * Shows where the cursor sits inside a response (`$ > sort > [0] > id`). An applied
+ * plain-path filter is the start of the trail, so any crumb moves it. While filtered,
+ * the bar is tinted so a lingering filter is hard to miss.
+ */
+export function ResponseBreadcrumbBar({
+  segments,
+  appliedFilter,
+  appliedDepth,
+  filterError,
+  onSelect,
+}: Props) {
+  const scrollRef = useRef<HTMLDivElement>(null);
+  const [overflow, setOverflow] = useState({ left: false, right: false });
+
+  const measure = useCallback(() => {
+    const el = scrollRef.current;
+    if (el == null) return;
+    const maxScroll = el.scrollWidth - el.clientWidth;
+    setOverflow({
+      left: el.scrollLeft > 1,
+      right: el.scrollLeft < maxScroll - 1,
+    });
+  }, []);
+
+  // Keep the deepest crumb (where the cursor is) in view as the path changes.
+  useLayoutEffect(() => {
+    const el = scrollRef.current;
+    if (el == null) return;
+    el.scrollLeft = el.scrollWidth;
+    measure();
+  }, [segments, measure]);
+
+  useEffect(() => {
+    const el = scrollRef.current;
+    if (el == null) return;
+    const observer = new ResizeObserver(measure);
+    observer.observe(el);
+    return () => observer.disconnect();
+  }, [measure]);
+
+  const scrollBy = useCallback((direction: -1 | 1) => {
+    const el = scrollRef.current;
+    if (el == null) return;
+    el.scrollBy({ left: direction * Math.max(120, el.clientWidth * 0.6), behavior: "smooth" });
+  }, []);
+
+  const isFiltered = appliedFilter != null;
+
+  return (
+    <div className="rounded bg-surface shadow pointer-events-auto">
+      <div
+        className={classNames(
+          "flex items-stretch h-6 rounded border overflow-hidden font-mono text-xs text-text-subtle select-none",
+          !isFiltered && "border-border-subtle",
+          isFiltered && !filterError && "border-primary/40 bg-primary/10",
+          filterError && "border-danger/40 bg-danger/10",
+        )}
+      >
+        {isFiltered && appliedDepth == null ? (
+          <span
+            className={classNames(
+              "flex items-center min-w-0 truncate px-2",
+              filterError ? "text-danger" : "text-primary",
+            )}
+          >
+            {appliedFilter}
+          </span>
+        ) : (
+          <Crumb
+            label="$"
+            tooltip="Clear filter"
+            isApplied={isFiltered}
+            onClick={appliedDepth != null && appliedDepth > 0 ? () => onSelect(0) : null}
+          />
+        )}
+        {overflow.left && (
+          <IconButton
+            size="xs"
+            icon="chevron_left"
+            title="Scroll breadcrumbs left"
+            iconColor="secondary"
+            onClick={() => scrollBy(-1)}
+            className="shrink-0 h-auto!"
+          />
+        )}
+        <div
+          ref={scrollRef}
+          onScroll={measure}
+          className="flex items-stretch min-w-0 overflow-x-auto hide-scrollbars whitespace-nowrap"
+        >
+          {segments.map((segment, i) => {
+            const count = i + 1;
+            const isApplied = appliedDepth != null && count <= appliedDepth;
+            const isClickable = (!isFiltered || appliedDepth != null) && count !== appliedDepth;
+            return (
+              <div key={i} className="flex items-stretch shrink-0">
+                <Icon
+                  icon="chevron_right"
+                  size="xs"
+                  className="text-text-subtlest shrink-0 self-center"
+                />
+                <Crumb
+                  label={segment.kind === "index" ? `[${segment.index}]` : segment.key}
+                  tooltip={
+                    segment.kind === "index"
+                      ? `Filter to element ${segment.index}`
+                      : `Filter to ${segment.key}`
+                  }
+                  isApplied={isApplied}
+                  onClick={isClickable ? () => onSelect(count) : null}
+                />
+              </div>
+            );
+          })}
+        </div>
+        {overflow.right && (
+          <IconButton
+            size="xs"
+            icon="chevron_right"
+            title="Scroll breadcrumbs right"
+            iconColor="secondary"
+            onClick={() => scrollBy(1)}
+            className="shrink-0 h-auto!"
+          />
+        )}
+      </div>
+    </div>
+  );
+}
+
+function Crumb({
+  label,
+  tooltip,
+  isApplied,
+  onClick,
+}: {
+  label: string;
+  tooltip: string;
+  isApplied: boolean;
+  onClick: (() => void) | null;
+}) {
+  const outerClassName = classNames("flex items-center px-0.5 py-0.5", isApplied && "text-primary");
+  const innerClassName = "flex items-center h-full px-1 rounded-sm";
+  if (onClick == null) {
+    return (
+      <span className={classNames(outerClassName, "shrink-0")}>
+        <span className={innerClassName}>{label}</span>
+      </span>
+    );
+  }
+
+  return (
+    <Tooltip content={tooltip} className="shrink-0 items-stretch!">
+      <button
+        type="button"
+        onClick={onClick}
+        className={classNames(outerClassName, "group/crumb focus-visible:outline-none")}
+      >
+        <span
+          className={classNames(
+            innerClassName,
+            "transition-colors group-hover/crumb:text-text group-hover/crumb:bg-surface-highlight",
+            "group-focus-visible/crumb:ring-1 group-focus-visible/crumb:ring-border-focus",
+          )}
+        >
+          {label}
+        </span>
+      </button>
+    </Tooltip>
+  );
+}

apps/yaak-client/components/responseViewers/TextViewer.tsx

@@ -1,18 +1,18 @@
 import type { ReactNode } from "react";
-import { Children, useCallback, useMemo } from "react";
-import { Banner, HStack, Icon, InlineCode } from "@yaakapp-internal/ui";
+import { Children, useCallback, useMemo, useState } from "react";
 import { useFormatText } from "../../hooks/useFormatText";
 import type { ResponseFilterApi } from "../../hooks/useResponseFilter";
-import { Button } from "../core/Button";
 import type { EditorProps } from "../core/Editor/Editor";
+import { jsonBreadcrumbExtension } from "../core/Editor/json/breadcrumbExtension";
+import type { JsonPathSegment } from "../core/Editor/json/jsonPath";
+import { jsonPathToSegments, segmentsToJsonPath } from "../core/Editor/json/jsonPath";
 import { hyperlink } from "../core/Editor/hyperlink/extension";
 import { Editor } from "../core/Editor/LazyEditor";
 import { IconButton } from "../core/IconButton";
 import { Input } from "../core/Input";
+import { ResponseBreadcrumbBar } from "./ResponseBreadcrumbBar";
 import { RecentFiltersDropdown } from "./RecentFiltersDropdown";
 
-const extraExtensions = [hyperlink];
-
 interface Props {
   text: string;
   language: EditorProps["language"];
@@ -38,12 +38,43 @@ export function TextViewer({
   filter,
   filterResult,
 }: Props) {
+  // Track the JSON path under the cursor to drive the breadcrumb bar. Selection
+  // works even in this read-only editor, so it updates as the user clicks around.
+  const [breadcrumbSegments, setBreadcrumbSegments] = useState<JsonPathSegment[]>([]);
+  const handleBreadcrumbUpdate = useCallback(
+    ({ segments }: { segments: JsonPathSegment[] | null }) =>
+      setBreadcrumbSegments((prev) => {
+        const next = segments ?? [];
+        return segmentsToJsonPath(prev) === segmentsToJsonPath(next) ? prev : next;
+      }),
+    [],
+  );
+  const extraExtensions = useMemo(
+    () =>
+      language === "json"
+        ? [hyperlink, jsonBreadcrumbExtension(handleBreadcrumbUpdate)]
+        : [hyperlink],
+    [language, handleBreadcrumbUpdate],
+  );
+
   const canFilter =
     filter != null && (language === "json" || language === "xml" || language === "html");
   const isSearching = filter?.isSearching ?? false;
   const appliedFilter = filter?.appliedFilter ?? null;
   const resultError = filterResult?.error ?? false;
 
+  // Filter output is always an array of matches, so under a plain-path filter the
+  // cursor's leading index is that single match and the rest extends the filter.
+  const appliedSegments =
+    appliedFilter != null && language === "json" ? jsonPathToSegments(appliedFilter) : null;
+  const pathSegments =
+    appliedSegments != null
+      ? [...appliedSegments, ...breadcrumbSegments.slice(1)]
+      : breadcrumbSegments;
+  const showBreadcrumbs =
+    filter != null &&
+    (appliedFilter != null || (language === "json" && breadcrumbSegments.length > 0));
+
   const handleFilterKeyDown = useCallback(
     (e: KeyboardEvent) => {
       if (filter == null) return;
@@ -155,16 +186,7 @@ export function TextViewer({
   }
 
   return (
-    <div className="grid grid-rows-[auto_minmax(0,1fr)] h-full w-full">
-      {appliedFilter && filter != null ? (
-        <AppliedFilterBar
-          filter={appliedFilter}
-          error={resultError}
-          onClear={() => filter.replaceFilter("")}
-        />
-      ) : (
-        <span />
-      )}
+    <div className="relative h-full w-full">
       <Editor
         readOnly
         className={className}
@@ -174,45 +196,23 @@ export function TextViewer({
         extraExtensions={extraExtensions}
         stateKey={stateKey}
       />
+      {showBreadcrumbs && (
+        <div className="absolute top-0 right-3 max-w-[70%] pointer-events-none">
+          <ResponseBreadcrumbBar
+            segments={language === "json" ? pathSegments : []}
+            appliedFilter={appliedFilter}
+            appliedDepth={appliedSegments?.length ?? null}
+            filterError={resultError}
+            onSelect={(count) =>
+              filter.replaceFilter(count === 0 ? "" : segmentsToJsonPath(pathSegments, count))
+            }
+          />
+        </div>
+      )}
     </div>
   );
 }
 
-/**
- * Shows what's actually filtering the body, which the filter box below can't convey
- * once it holds an edited expression that hasn't been applied yet.
- */
-function AppliedFilterBar({
-  filter,
-  error,
-  onClear,
-}: {
-  filter: string;
-  error: boolean;
-  onClear: () => void;
-}) {
-  return (
-    <Banner color={error ? "danger" : "info"} className="py-1! mb-2! text-sm">
-      <HStack space={2} className="min-w-0">
-        <Icon icon="filter" size="xs" className="shrink-0 opacity-70" />
-        <span className="truncate min-w-0" title={filter}>
-          Response filtered by <InlineCode>{filter}</InlineCode>
-          {error && " (invalid expression)"}
-        </span>
-        <Button
-          size="2xs"
-          variant="border"
-          color={error ? "danger" : "info"}
-          className="ml-auto shrink-0"
-          onClick={onClear}
-        >
-          Clear
-        </Button>
-      </HStack>
-    </Banner>
-  );
-}
-
 /** Convert \uXXXX to actual Unicode characters */
 function decodeUnicodeLiterals(text: string): string {
   return text.replace(/\\u([0-9a-fA-F]{4})/g, (_, hex) => {

apps/yaak-client/components/responseViewers/pdfWorker.ts

@@ -0,0 +1,3 @@
+// The worker has its own globals, so it needs the polyfills before PDF.js evaluates
+import "../../polyfills";
+import "pdfjs-dist/build/pdf.worker.min.mjs";

apps/yaak-client/hooks/useExportData.tsx

@@ -23,7 +23,6 @@ export function useExportData() {
         id: "export-data",
         title: "Export Data",
         size: "md",
-        noPadding: true,
         render: ({ hide }) => (
           <ExportDataDialog
             onHide={hide}

apps/yaak-client/hooks/useSendAnyHttpRequest.test.ts

@@ -0,0 +1,133 @@
+import { afterEach, beforeEach, describe, expect, test, vi } from "vite-plus/test";
+
+const mocks = vi.hoisted(() => ({
+  platform: { httpProxyUrl: "https://web.yaak.test" as string | null },
+  showConfirm: vi.fn<() => Promise<boolean>>(),
+  flushAllModelWrites: vi.fn(),
+  rpc: vi.fn(),
+}));
+
+vi.mock("@yaakapp-internal/platform", () => ({ platform: mocks.platform }));
+vi.mock("@yaakapp-internal/models", () => ({ flushAllModelWrites: mocks.flushAllModelWrites }));
+vi.mock("../lib/confirm", () => ({ showConfirm: mocks.showConfirm }));
+vi.mock("../lib/appInfo", () => ({ appInfo: { identifier: "app.yaak.web" } }));
+vi.mock("../lib/rpc", () => ({ rpc: mocks.rpc }));
+vi.mock("../lib/toast", () => ({ showToast: vi.fn() }));
+vi.mock("./useActiveCookieJar", () => ({ getActiveCookieJar: () => ({ id: "cj_test" }) }));
+vi.mock("./useActiveEnvironment", () => ({ getActiveEnvironment: () => ({ id: "ev_test" }) }));
+
+async function sender() {
+  return (await import("./useSendAnyHttpRequest")).sendAnyHttpRequest;
+}
+
+describe("web proxy confirmation before sending", () => {
+  let stored: Map<string, string>;
+
+  beforeEach(() => {
+    vi.resetModules();
+    vi.resetAllMocks();
+    mocks.platform.httpProxyUrl = "https://web.yaak.test";
+    mocks.rpc.mockResolvedValue({ id: "rs_test" });
+    stored = new Map();
+    vi.stubGlobal("localStorage", {
+      getItem: (key: string) => stored.get(key) ?? null,
+      setItem: (key: string, value: string) => stored.set(key, value),
+    });
+  });
+
+  afterEach(() => vi.unstubAllGlobals());
+
+  test("blocks all pending sends until one shared confirmation is accepted", async () => {
+    let decide!: (accepted: boolean) => void;
+    mocks.showConfirm.mockReturnValue(
+      new Promise((resolve) => {
+        decide = resolve;
+      }),
+    );
+    const send = await sender();
+    const first = send.mutateAsync("rq_one");
+    const second = send.mutateAsync("rq_two");
+
+    expect(mocks.showConfirm).toHaveBeenCalledTimes(1);
+    expect(mocks.flushAllModelWrites).not.toHaveBeenCalled();
+    expect(mocks.rpc).not.toHaveBeenCalled();
+    decide(true);
+    await Promise.all([first, second]);
+
+    expect(mocks.rpc).toHaveBeenCalledTimes(2);
+    expect(mocks.rpc).toHaveBeenCalledWith("cmd_send_http_request", {
+      requestId: "rq_one",
+      environmentId: "ev_test",
+      cookieJarId: "cj_test",
+    });
+    expect(stored.size).toBe(1);
+  });
+
+  test("cancel sends nothing, remembers nothing, and asks again next time", async () => {
+    mocks.showConfirm.mockResolvedValue(false);
+    const send = await sender();
+    expect(await send.mutateAsync("rq_one")).toBeNull();
+    expect(await send.mutateAsync("rq_one")).toBeNull();
+    expect(mocks.showConfirm).toHaveBeenCalledTimes(2);
+    expect(mocks.flushAllModelWrites).not.toHaveBeenCalled();
+    expect(mocks.rpc).not.toHaveBeenCalled();
+    expect(stored.size).toBe(0);
+  });
+
+  test("cancel applies to every send waiting on the dialog", async () => {
+    mocks.showConfirm.mockResolvedValue(false);
+    const send = await sender();
+    expect(await Promise.all([send.mutateAsync("rq_one"), send.mutateAsync("rq_two")])).toEqual([
+      null,
+      null,
+    ]);
+    expect(mocks.showConfirm).toHaveBeenCalledTimes(1);
+    expect(mocks.rpc).not.toHaveBeenCalled();
+  });
+
+  test("remembers acceptance across module reloads for the same proxy", async () => {
+    mocks.showConfirm.mockResolvedValue(true);
+    await (await sender()).mutateAsync("rq_one");
+    vi.resetModules();
+    await (await sender()).mutateAsync("rq_two");
+    expect(mocks.showConfirm).toHaveBeenCalledTimes(1);
+    expect(mocks.rpc).toHaveBeenCalledTimes(2);
+  });
+
+  test("requires a new decision when the proxy changes", async () => {
+    mocks.showConfirm.mockResolvedValueOnce(true).mockResolvedValueOnce(false);
+    const send = await sender();
+    await send.mutateAsync("rq_one");
+    mocks.platform.httpProxyUrl = "https://another-proxy.test";
+    expect(await send.mutateAsync("rq_two")).toBeNull();
+    expect(mocks.showConfirm).toHaveBeenCalledTimes(2);
+    expect(mocks.rpc).toHaveBeenCalledTimes(1);
+  });
+
+  test("still asks and remembers in this tab if browser storage is unavailable", async () => {
+    const unavailable = () => {
+      throw new Error("Storage unavailable");
+    };
+    vi.stubGlobal("localStorage", { getItem: unavailable, setItem: unavailable });
+    mocks.showConfirm.mockResolvedValue(true);
+    const send = await sender();
+    await send.mutateAsync("rq_one");
+    await send.mutateAsync("rq_two");
+    expect(mocks.showConfirm).toHaveBeenCalledTimes(1);
+    expect(mocks.rpc).toHaveBeenCalledTimes(2);
+  });
+
+  test("desktop sends directly without confirmation", async () => {
+    mocks.platform.httpProxyUrl = null;
+    await (await sender()).mutateAsync("rq_one");
+    expect(mocks.showConfirm).not.toHaveBeenCalled();
+    expect(mocks.rpc).toHaveBeenCalledTimes(1);
+    expect(stored.size).toBe(0);
+  });
+
+  test("an empty selection does not prompt or send", async () => {
+    expect(await (await sender()).mutateAsync(null)).toBeNull();
+    expect(mocks.showConfirm).not.toHaveBeenCalled();
+    expect(mocks.rpc).not.toHaveBeenCalled();
+  });
+});

apps/yaak-client/hooks/useSendAnyHttpRequest.ts

@@ -1,5 +1,6 @@
 import type { HttpResponse } from "@yaakapp-internal/models";
 import { flushAllModelWrites } from "@yaakapp-internal/models";
+import { confirmWebProxy } from "../lib/confirmWebProxy";
 import { rpc } from "../lib/rpc";
 import { getActiveCookieJar } from "./useActiveCookieJar";
 import { getActiveEnvironment } from "./useActiveEnvironment";
@@ -10,6 +11,10 @@ async function sendAnyHttpRequestById(id: string | null): Promise<HttpResponse |
     return null;
   }
 
+  if (!(await confirmWebProxy())) {
+    return null;
+  }
+
   await flushAllModelWrites();
 
   return rpc("cmd_send_http_request", {

apps/yaak-client/index.html

@@ -3,6 +3,9 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <link rel="icon" href="/favicon.ico" sizes="any" />
+    <link rel="icon" type="image/png" href="/icon-128.png" sizes="128x128" />
+    <link rel="apple-touch-icon" href="/icon-128.png" />
     <title>Yaak App</title>
     <!--  <script src="http://localhost:8097"></script>-->
 
@@ -28,6 +31,7 @@
     <div id="cm-portal" class="cm-portal"></div>
     <div id="react-portal"></div>
     <div id="radix-portal" class="cm-portal"></div>
+    <script type="module" src="/polyfills.ts"></script>
     <script type="module" src="/theme.ts"></script>
     <script type="module" src="/font-size.ts"></script>
     <script type="module" src="/font.ts"></script>

apps/yaak-client/lib/alert.ts

@@ -14,9 +14,8 @@ export function showAlert({ id, title, body, size = "sm" }: AlertArgs) {
   showDialog({
     id,
     title,
-    hideX: true,
     size,
-    disableBackdropClose: true, // Prevent accidental dismisses
+    disableClose: true,
     render: ({ hide }) => Alert({ onHide: hide, body }),
   });
 }

apps/yaak-client/lib/confirm.ts

@@ -18,9 +18,8 @@ export async function showConfirm({
   return new Promise((onResult: ConfirmProps["onResult"]) => {
     showDialog({
       ...extraProps,
-      hideX: true,
       size,
-      disableBackdropClose: true, // Prevent accidental dismisses
+      disableClose: true,
       render: ({ hide }) => Confirm({ onHide: hide, color, onResult, confirmText, requireTyping }),
     });
   });

apps/yaak-client/lib/confirmWebProxy.test.tsx

@@ -0,0 +1,64 @@
+import { renderToStaticMarkup } from "react-dom/server";
+import { afterEach, beforeEach, describe, expect, test, vi } from "vite-plus/test";
+import type { DialogInstance } from "../components/Dialogs";
+
+const mocks = vi.hoisted(() => ({
+  platform: { httpProxyUrl: "https://web.yaak.app" },
+  showDialog: vi.fn<(dialog: DialogInstance) => void>(),
+}));
+
+vi.mock("@yaakapp-internal/platform", () => ({ platform: mocks.platform }));
+vi.mock("./appInfo", () => ({ appInfo: { identifier: "app.yaak.web" } }));
+vi.mock("./dialog", () => ({ showDialog: mocks.showDialog }));
+vi.mock("../hooks/useHotKey", () => ({
+  useHotKey: vi.fn(),
+  useFormattedHotkey: () => null,
+}));
+
+describe("proxy consent disclosure", () => {
+  beforeEach(() => {
+    vi.resetModules();
+    vi.clearAllMocks();
+    vi.stubGlobal("localStorage", { getItem: () => null });
+  });
+
+  afterEach(() => vi.unstubAllGlobals());
+
+  test.each([
+    ["Yaak-hosted", "https://web.yaak.app"],
+    ["self-hosted", "https://yaak.example.com"],
+    ["local", "http://localhost:8080"],
+    ["split deployment", "https://send.example.com/relay"],
+  ])("identifies the %s proxy and requires an explicit decision", async (_, proxyUrl) => {
+    mocks.platform.httpProxyUrl = proxyUrl;
+    const { confirmWebProxy } = await import("./confirmWebProxy");
+    void confirmWebProxy();
+
+    const dialog = mocks.showDialog.mock.calls[0]?.[0];
+    expect(dialog).toMatchObject({
+      id: "web-proxy-consent",
+      title: "Requests in Yaak Web use a proxy",
+      size: "sm",
+      disableClose: true,
+    });
+    if (dialog == null) throw new Error("Expected the proxy consent dialog");
+
+    const disclosure = renderToStaticMarkup(<>{dialog.description}</>);
+    expect(disclosure).toContain(`>${proxyUrl}</code>`);
+    expect(disclosure).toMatch(/request and response data/i);
+    expect(disclosure).toContain("credentials");
+    expect(disclosure).toContain("server shown below");
+    expect(disclosure).not.toContain("Yaak’s servers");
+    expect(disclosure).toContain(
+      'href="https://yaak.app/docs/getting-started/web-proxy?ref=app.yaak.web"',
+    );
+    expect(disclosure).toContain('target="_blank"');
+    expect(disclosure).toContain("how the proxy works");
+
+    const Actions = dialog.render;
+    const actions = renderToStaticMarkup(<Actions hide={vi.fn()} />);
+    expect(actions).toMatch(/<button[^>]*type="submit"/);
+    expect(actions).toContain(">Send via Proxy<");
+    expect(actions).toContain(">Cancel<");
+  });
+});

apps/yaak-client/lib/confirmWebProxy.tsx

@@ -0,0 +1,60 @@
+import { platform } from "@yaakapp-internal/platform";
+import { InlineCode } from "@yaakapp-internal/ui";
+import { Link } from "../components/core/Link";
+import { showConfirm } from "./confirm";
+
+const acceptedProxies = new Set<string>();
+const pendingConfirmations = new Map<string, Promise<boolean>>();
+
+/** One decision for all pending sends; only acceptance is remembered. */
+export function confirmWebProxy(): Promise<boolean> {
+  const proxyUrl = platform.httpProxyUrl;
+  if (proxyUrl == null) return Promise.resolve(true);
+
+  const key = `yaak.webProxyConsent.v1:${proxyUrl}`;
+  try {
+    if (localStorage.getItem(key) === "accepted") return Promise.resolve(true);
+  } catch {
+    // Storage can be unavailable in private or restricted browsing.
+  }
+  if (acceptedProxies.has(proxyUrl)) return Promise.resolve(true);
+
+  const pending = pendingConfirmations.get(proxyUrl);
+  if (pending != null) return pending;
+
+  const confirmation = showConfirm({
+    id: "web-proxy-consent",
+    title: "Requests in Yaak Web use a proxy",
+    confirmText: "Send via Proxy",
+    description: (
+      <div className="space-y-3">
+        <p>
+          Yaak Web sends requests through a hosted proxy. Request and response data, including
+          credentials, pass through the server shown below.
+        </p>
+        <p>
+          <InlineCode className="break-all">{proxyUrl}</InlineCode>
+        </p>
+        <p>
+          Learn more about{" "}
+          <Link href="https://yaak.app/docs/getting-started/web-proxy">how the proxy works</Link>.
+        </p>
+      </div>
+    ),
+  })
+    .then((accepted) => {
+      if (accepted) {
+        acceptedProxies.add(proxyUrl);
+        try {
+          localStorage.setItem(key, "accepted");
+        } catch {
+          // Keep acceptance for this tab if it cannot be persisted.
+        }
+      }
+      return accepted;
+    })
+    .finally(() => pendingConfirmations.delete(proxyUrl));
+
+  pendingConfirmations.set(proxyUrl, confirmation);
+  return confirmation;
+}

apps/yaak-client/lib/contentType.ts

@@ -1,4 +1,4 @@
-import MimeType from "whatwg-mimetype";
+import { MIMEType } from "whatwg-mimetype";
 import type { EditorProps } from "../components/core/Editor/Editor";
 
 export function languageFromContentType(
@@ -90,10 +90,10 @@ export function isProbablyTextContentType(contentType: string | null): boolean {
   ].some((textType) => normalized === textType || normalized.endsWith(textType));
 }
 
-export function getMimeTypeFromContentType(contentType: string): MimeType {
+export function getMimeTypeFromContentType(contentType: string): MIMEType {
   try {
-    return new MimeType(contentType);
+    return new MIMEType(contentType);
   } catch {
-    return new MimeType("text/plain");
+    return new MIMEType("text/plain");
   }
 }

apps/yaak-client/lib/errorMessage.ts

@@ -0,0 +1,3 @@
+export function errorMessage(err: unknown): string {
+  return err instanceof Error ? err.message : String(err);
+}

apps/yaak-client/lib/graphqlSchema.ts

@@ -1,4 +1,5 @@
 import type { GraphQLSchema, IntrospectionQuery } from "graphql";
+import { errorMessage } from "./errorMessage";
 import { buildClientSchema, buildSchema, introspectionFromSchema } from "graphql";
 
 // Accepts either a GraphQL introspection JSON ({ data: { __schema } } or
@@ -45,7 +46,3 @@ export function tryBuildIntrospectionFromFile(
     };
   }
 }
-
-function errorMessage(e: unknown): string {
-  return e instanceof Error ? e.message : String(e);
-}

apps/yaak-client/lib/importData.tsx

@@ -1,14 +1,41 @@
-import type { BatchUpsertResult } from "@yaakapp-internal/models";
+import {
+  type BatchUpsertResult,
+  type ImportDestination,
+  type ImportPlan,
+  type ImportSource,
+  workspacesAtom,
+} from "@yaakapp-internal/models";
 import { FormattedError, VStack } from "@yaakapp-internal/ui";
 import { Button } from "../components/core/Button";
 import { ImportDataDialog } from "../components/ImportDataDialog";
+import type { ImportSourcePath } from "../components/ImportSourceList";
+import { activeWorkspaceAtom } from "../hooks/useActiveWorkspace";
 import { createFastMutation } from "../hooks/useFastMutation";
 import { showAlert } from "./alert";
 import { showDialog } from "./dialog";
+import { jotaiStore } from "./jotai";
 import { pluralizeCount } from "./pluralize";
 import { router } from "./router";
 import { rpc } from "./rpc";
 
+// Stable identities so the dialog's effects don't re-run (and cancel in-flight
+// fetches) every time the dialog container re-renders.
+const planSources = (sources: ImportSourcePath[], destination: ImportDestination) =>
+  rpc<ImportPlan>("cmd_import_data", {
+    filePaths: sources.filter((source) => source.kind !== "url").map((source) => source.path),
+    urls: sources.filter((source) => source.kind === "url").map((source) => source.path),
+    destination,
+  });
+const detectSource = (source: ImportSourcePath) =>
+  rpc<string>(
+    "cmd_detect_import_source",
+    source.kind === "url" ? { url: source.path } : { filePath: source.path },
+  );
+const listSources = (workspaceId: string) =>
+  rpc<ImportSource[]>("cmd_list_import_sources", { workspaceId });
+const findSourcesForOrigin = (args: { filePath?: string; url?: string }) =>
+  rpc<ImportSource[]>("cmd_import_sources_for_origin", args);
+
 export const importData = createFastMutation({
   mutationKey: ["import_data"],
   onError: (err: string) => {
@@ -21,29 +48,40 @@ export const importData = createFastMutation({
   },
   mutationFn: async () => {
     return new Promise<void>((resolve, reject) => {
+      const currentWorkspace = jotaiStore.get(activeWorkspaceAtom);
+      const workspaces = jotaiStore.get(workspacesAtom);
       showDialog({
         id: "import",
         title: "Import Data",
-        size: "sm",
+        size: "lg",
+        className: "h-[36rem]",
+        disableClose: true,
         render: ({ hide }) => {
-          const importAndHide = async (runImport: () => Promise<BatchUpsertResult>) => {
-            try {
-              await finishImport(await runImport());
-              resolve();
-            } catch (err) {
-              reject(err);
-            } finally {
-              hide();
-            }
+          const cancel = () => {
+            hide();
+            resolve();
+          };
+          const fail = (err: unknown) => {
+            hide();
+            reject(err);
+          };
+          const commit = async (plan: ImportPlan) => {
+            const imported = await rpc<BatchUpsertResult>("cmd_commit_import", { plan });
+            hide();
+            await finishImport(imported);
+            resolve();
           };
           return (
             <ImportDataDialog
-              importFile={(filePath) =>
-                importAndHide(() => rpc<BatchUpsertResult>("cmd_import_data", { filePath }))
-              }
-              importUrl={(url) =>
-                importAndHide(() => rpc<BatchUpsertResult>("cmd_import_url", { url }))
-              }
+              currentWorkspace={currentWorkspace}
+              workspaces={workspaces}
+              planSources={planSources}
+              detectSource={detectSource}
+              listSources={listSources}
+              findSourcesForOrigin={findSourcesForOrigin}
+              commit={commit}
+              cancel={cancel}
+              onError={fail}
             />
           );
         },

apps/yaak-client/lib/initGlobalListeners.tsx

@@ -12,7 +12,7 @@ import type {
   UpdateResponse,
   YaakNotification,
 } from "@yaakapp-internal/tauri-client";
-import { HStack, Icon, VStack } from "@yaakapp-internal/ui";
+import { HStack, Icon, InlineCode, VStack } from "@yaakapp-internal/ui";
 import { openSettings } from "../commands/openSettings";
 import { Button } from "../components/core/Button";
 import { ButtonInfiniteLoading } from "../components/core/ButtonInfiniteLoading";
@@ -180,9 +180,65 @@ function showUpdateInstalledToast(version: string) {
 
 async function showUpdateAvailableToast(updateInfo: UpdateInfo) {
   const UPDATE_TOAST_ID = "update-info";
-  const { version, replyEventId, downloaded } = updateInfo;
+  const { version, replyEventId, downloaded, install } = updateInfo;
 
-  jotaiStore.set(updateAvailableAtom, { version, downloaded });
+  jotaiStore.set(updateAvailableAtom, { version, downloaded, install });
+
+  const whatsNewButton = (
+    <Button
+      size="xs"
+      color="info"
+      variant="border"
+      rightSlot={<Icon icon="external_link" />}
+      onClick={async () => {
+        await platform.openUrl(`https://yaak.app/changelog/${version}`);
+      }}
+    >
+      What&apos;s New
+    </Button>
+  );
+
+  if (install !== "integrated") {
+    // Nothing to reply to here; the backend only told us so we can say how to update
+    const flatpak = install === "flatpak";
+    showToast({
+      id: UPDATE_TOAST_ID,
+      color: "info",
+      timeout: null,
+      message: (
+        <VStack>
+          <h2 className="font-semibold">Yaak {version} is available</h2>
+          <p className="text-text-subtle text-sm">
+            {flatpak ? (
+              <>
+                Update with <InlineCode>flatpak update</InlineCode> or your software center.
+              </>
+            ) : (
+              "Download the new version to upgrade."
+            )}
+          </p>
+        </VStack>
+      ),
+      action: () => (
+        <HStack space={1.5}>
+          {!flatpak && (
+            <Button
+              size="xs"
+              color="info"
+              rightSlot={<Icon icon="external_link" />}
+              onClick={async () => {
+                await platform.openUrl("https://yaak.app/download");
+              }}
+            >
+              Download
+            </Button>
+          )}
+          {whatsNewButton}
+        </HStack>
+      ),
+    });
+    return;
+  }
 
   // Acknowledge the event, so we don't time out and try the fallback update logic
   await platform.emit(replyEventId, { type: "ack" } satisfies UpdateResponse);
@@ -215,17 +271,7 @@ async function showUpdateAvailableToast(updateInfo: UpdateInfo) {
         >
           {downloaded ? "Install Now" : "Download and Install"}
         </ButtonInfiniteLoading>
-        <Button
-          size="xs"
-          color="info"
-          variant="border"
-          rightSlot={<Icon icon="external_link" />}
-          onClick={async () => {
-            await platform.openUrl(`https://yaak.app/changelog/${version}`);
-          }}
-        >
-          What&apos;s New
-        </Button>
+        {whatsNewButton}
       </HStack>
     ),
   });

apps/yaak-client/lib/jsonSchemaExample.test.ts

@@ -0,0 +1,251 @@
+import { describe, expect, test } from "vite-plus/test";
+import type { JsonSchema } from "./jsonSchemaExample";
+import { buildExampleFromSchema } from "./jsonSchemaExample";
+
+describe("buildExampleFromSchema", () => {
+  test("fills scalar fields with placeholders", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: {
+        name: { type: "string" },
+        age: { type: "number", format: "int32" },
+        active: { type: "boolean" },
+        data: { type: "string", format: "byte" },
+      },
+    };
+
+    expect(buildExampleFromSchema(schema)).toEqual({
+      name: "",
+      age: 0,
+      active: false,
+      data: "",
+    });
+  });
+
+  test("encodes 64-bit integers as strings", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: {
+        id: { type: "string", format: "int64" },
+        count: { type: "string", format: "uint64" },
+        offset: { type: "string", format: "sfixed64" },
+      },
+    };
+
+    expect(buildExampleFromSchema(schema)).toEqual({ id: "0", count: "0", offset: "0" });
+  });
+
+  test("fills date-time with a parseable timestamp", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: { createdAt: { type: "string", format: "date-time" } },
+    };
+
+    const example = buildExampleFromSchema(schema) as { createdAt: string };
+    expect(Number.isNaN(Date.parse(example.createdAt))).toBe(false);
+  });
+
+  test("fills a duration with a value that parses", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: { timeout: { type: "string", format: "duration" } },
+    };
+
+    // An empty string fails protobuf's Duration parsing, so the message wouldn't send
+    expect(buildExampleFromSchema(schema)).toEqual({ timeout: "0s" });
+  });
+
+  test("expands nested messages through $defs", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: { user: { $ref: "#/$defs/example.User" } },
+      $defs: {
+        "example.User": {
+          type: "object",
+          properties: {
+            name: { type: "string" },
+            address: { $ref: "#/$defs/example.Address" },
+          },
+        },
+        "example.Address": {
+          type: "object",
+          properties: { city: { type: "string" } },
+        },
+      },
+    };
+
+    expect(buildExampleFromSchema(schema)).toEqual({
+      user: { name: "", address: { city: "" } },
+    });
+  });
+
+  test("gives repeated fields a single placeholder item", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: {
+        tags: { type: "array", items: { type: "string" } },
+        users: { type: "array", items: { $ref: "#/$defs/example.User" } },
+        unknown: { type: "array" },
+      },
+      $defs: {
+        "example.User": { type: "object", properties: { name: { type: "string" } } },
+      },
+    };
+
+    expect(buildExampleFromSchema(schema)).toEqual({
+      tags: [""],
+      users: [{ name: "" }],
+      unknown: [],
+    });
+  });
+
+  test("uses the first value of an enum", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: {
+        status: { type: "string", enum: ["STATUS_UNSPECIFIED", "STATUS_ACTIVE"] },
+        empty: { type: "string", enum: [] },
+      },
+    };
+
+    expect(buildExampleFromSchema(schema)).toEqual({ status: "STATUS_UNSPECIFIED", empty: "" });
+  });
+
+  test("gives maps a single placeholder entry", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: {
+        labels: { type: "object", additionalProperties: { type: "string" } },
+        users: { type: "object", additionalProperties: { $ref: "#/$defs/example.User" } },
+      },
+      $defs: {
+        "example.User": { type: "object", properties: { name: { type: "string" } } },
+      },
+    };
+
+    expect(buildExampleFromSchema(schema)).toEqual({
+      labels: { key: "" },
+      users: { key: { name: "" } },
+    });
+  });
+
+  test("stops at the root self-reference", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: {
+        value: { type: "string" },
+        children: { type: "array", items: { $ref: "#" } },
+      },
+    };
+
+    expect(buildExampleFromSchema(schema)).toEqual({ value: "", children: [{}] });
+  });
+
+  test("stops at a cycle between messages", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: { node: { $ref: "#/$defs/example.Node" } },
+      $defs: {
+        "example.Node": {
+          type: "object",
+          properties: {
+            name: { type: "string" },
+            parent: { $ref: "#/$defs/example.Node" },
+            leaf: { $ref: "#/$defs/example.Leaf" },
+          },
+        },
+        "example.Leaf": {
+          type: "object",
+          properties: { node: { $ref: "#/$defs/example.Node" } },
+        },
+      },
+    };
+
+    expect(buildExampleFromSchema(schema)).toEqual({
+      node: { name: "", parent: {}, leaf: { node: {} } },
+    });
+  });
+
+  test("expands the same message twice when it is not on the same path", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: {
+        from: { $ref: "#/$defs/example.User" },
+        to: { $ref: "#/$defs/example.User" },
+      },
+      $defs: {
+        "example.User": { type: "object", properties: { name: { type: "string" } } },
+      },
+    };
+
+    expect(buildExampleFromSchema(schema)).toEqual({ from: { name: "" }, to: { name: "" } });
+  });
+
+  test("fills every branch of a flattened oneof", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: {
+        id: { type: "string" },
+        text: { type: "string" },
+        image: { $ref: "#/$defs/example.Image" },
+      },
+      $defs: {
+        "example.Image": { type: "object", properties: { url: { type: "string" } } },
+      },
+    };
+
+    expect(buildExampleFromSchema(schema)).toEqual({
+      id: "",
+      text: "",
+      image: { url: "" },
+    });
+  });
+
+  test("stops expanding once the node budget runs out", () => {
+    // Every level references the next one twice, so an unbounded walk would build 2^depth
+    // nodes without ever repeating a ref on the same path.
+    const depth = 16;
+    const $defs: Record<string, JsonSchema> = { [`d${depth}`]: { type: "string" } };
+    for (let i = 0; i < depth; i++) {
+      $defs[`d${i}`] = {
+        type: "object",
+        properties: {
+          a: { $ref: `#/$defs/d${i + 1}` },
+          b: { $ref: `#/$defs/d${i + 1}` },
+        },
+      };
+    }
+
+    const example = buildExampleFromSchema({
+      type: "object",
+      properties: { root: { $ref: "#/$defs/d0" } },
+      $defs,
+    });
+
+    // 2 ** 16 nodes unbounded; the budget holds it to a couple of thousand
+    expect(countNodes(example)).toBeLessThan(10_000);
+  });
+
+  test("handles messages without a known type", () => {
+    const schema: JsonSchema = {
+      type: "object",
+      properties: {
+        empty: {},
+        struct: { type: "object" },
+        missing: { $ref: "#/$defs/example.Nope" },
+      },
+    };
+
+    expect(buildExampleFromSchema(schema)).toEqual({ empty: null, struct: {}, missing: {} });
+  });
+});
+
+function countNodes(value: unknown): number {
+  if (Array.isArray(value)) {
+    return 1 + value.reduce((total: number, v) => total + countNodes(v), 0);
+  }
+  if (value !== null && typeof value === "object") {
+    return 1 + Object.values(value).reduce((total: number, v) => total + countNodes(v), 0);
+  }
+  return 1;
+}

apps/yaak-client/lib/jsonSchemaExample.ts

@@ -0,0 +1,121 @@
+/**
+ * Subset of JSON Schema emitted by the gRPC reflection layer for a method's
+ * input message. See `message_to_json_schema` in the `yaak-grpc` crate.
+ */
+export type JsonSchema = {
+  type?: string;
+  format?: string;
+  properties?: Record<string, JsonSchema>;
+  items?: JsonSchema;
+  additionalProperties?: JsonSchema;
+  enum?: unknown[];
+  $defs?: Record<string, JsonSchema>;
+  $ref?: string;
+};
+
+const DEFS_PREFIX = "#/$defs/";
+const ROOT_REF = "#";
+
+// Protobuf 64-bit integers are encoded as strings in the JSON mapping
+const STRING_NUMBER_FORMATS = ["int64", "uint64", "sint64", "fixed64", "sfixed64"];
+
+// Refs on sibling branches each expand their own subtree, so a schema that references the
+// same messages repeatedly can produce exponentially many nodes without ever cycling.
+const MAX_NODES = 5000;
+
+type Budget = { remaining: number };
+
+/** Build a sample message with placeholder values for every field in the schema */
+export function buildExampleFromSchema(schema: JsonSchema): unknown {
+  // The root is already being built, so a `#` ref anywhere below it is a cycle
+  return buildValue(schema, schema, new Set([ROOT_REF]), { remaining: MAX_NODES });
+}
+
+function buildValue(
+  schema: JsonSchema,
+  root: JsonSchema,
+  refPath: Set<string>,
+  budget: Budget,
+): unknown {
+  if (schema == null || typeof schema !== "object" || budget.remaining <= 0) {
+    return null;
+  }
+
+  budget.remaining -= 1;
+
+  if (typeof schema.$ref === "string") {
+    if (refPath.has(schema.$ref)) {
+      return {};
+    }
+    const resolved = resolveRef(schema.$ref, root);
+    if (resolved == null) {
+      return {};
+    }
+    return buildValue(resolved, root, new Set(refPath).add(schema.$ref), budget);
+  }
+
+  if (Array.isArray(schema.enum)) {
+    return schema.enum[0] ?? "";
+  }
+
+  switch (schema.type) {
+    case "object":
+      return buildObject(schema, root, refPath, budget);
+    case "array":
+      return schema.items == null ? [] : [buildValue(schema.items, root, refPath, budget)];
+    case "string":
+      return buildString(schema.format);
+    case "number":
+      return 0;
+    case "boolean":
+      return false;
+    default:
+      return null;
+  }
+}
+
+function buildObject(
+  schema: JsonSchema,
+  root: JsonSchema,
+  refPath: Set<string>,
+  budget: Budget,
+): unknown {
+  if (schema.properties != null && typeof schema.properties === "object") {
+    const example: Record<string, unknown> = {};
+    for (const [name, propertySchema] of Object.entries(schema.properties)) {
+      example[name] = buildValue(propertySchema, root, refPath, budget);
+    }
+    return example;
+  }
+
+  // Maps have no properties, only a value schema
+  if (schema.additionalProperties != null) {
+    return { key: buildValue(schema.additionalProperties, root, refPath, budget) };
+  }
+
+  return {};
+}
+
+function buildString(format: string | undefined): string {
+  if (format === "date-time") {
+    return new Date().toISOString();
+  }
+  // Duration JSON is a decimal string with an `s` suffix, and an empty one fails to parse
+  if (format === "duration") {
+    return "0s";
+  }
+  if (format != null && STRING_NUMBER_FORMATS.includes(format)) {
+    return "0";
+  }
+  return "";
+}
+
+function resolveRef(ref: string, root: JsonSchema): JsonSchema | null {
+  if (ref === ROOT_REF) {
+    return root;
+  }
+  if (!ref.startsWith(DEFS_PREFIX)) {
+    return null;
+  }
+  return root.$defs?.[ref.slice(DEFS_PREFIX.length)] ?? null;
+}

apps/yaak-client/lib/largeValue.ts

@@ -6,7 +6,6 @@ import type { SniffedValue } from "../components/core/Editor/sniffValue";
 import { isEncodedRun } from "../components/core/Editor/sniffValue";
 import { copyToClipboard } from "./copy";
 import { fireAndForget } from "./fireAndForget";
-import { rpc } from "./rpc";
 import { showToast } from "./toast";
 import { platform } from "@yaakapp-internal/platform";
 
@@ -212,35 +211,26 @@ export function copyImage(text: string, sniffed: SniffedValue, fallback: string)
     });
 }
 
-/** Base64 of a byte array, in chunks so a few megabytes don't blow the argument limit. */
-function toBase64(bytes: Uint8Array): string {
-  let binary = "";
-  for (let i = 0; i < bytes.length; i += 0x8000) {
-    binary += String.fromCharCode(...bytes.subarray(i, i + 0x8000));
-  }
-  return btoa(binary);
-}
-
 /**
  * Writes a collapsed value to a file the user picks.
  *
- * A value that is already base64 goes straight to the backend as-is — decoding it here only to
+ * A value that is already base64 is handed over as base64. These are the values
+ * the editor collapsed for being large, so decoding one here only for a host to
  * encode it again would walk megabytes twice for nothing.
  */
 export async function saveValue(text: string, sniffed: SniffedValue | null, name: string) {
   const ext = sniffed == null ? "txt" : (mime.getExtension(sniffed.mime) ?? "bin");
-  const filepath = await platform.dialog.save({ defaultPath: `${name}.${ext}`, title: "Save Value" });
-  if (filepath == null) {
+  const content =
+    sniffed == null
+      ? new TextEncoder().encode(text)
+      : sniffed.encoding === "base64"
+        ? { base64: normalizeBase64(payloadOf(text, sniffed)) }
+        : decodeValue(text, sniffed);
+
+  const savedTo = await platform.files.save(`${name}.${ext}`, content);
+  if (savedTo == null) {
     return; // Cancelled
   }
 
-  const data =
-    sniffed == null
-      ? toBase64(new TextEncoder().encode(text))
-      : sniffed.encoding === "base64"
-        ? normalizeBase64(payloadOf(text, sniffed))
-        : toBase64(decodeValue(text, sniffed));
-
-  await rpc("cmd_save_base64_to_binary", { filepath, data });
-  showToast({ message: `Saved to ${filepath}` });
+  showToast({ message: `Saved to ${savedTo}` });
 }

apps/yaak-client/lib/onboarding.ts

@@ -0,0 +1,44 @@
+import type { BatchUpsertResult } from "@yaakapp-internal/models";
+import { createGlobalModel } from "@yaakapp-internal/models";
+import { router } from "./router";
+import { rpc } from "./rpc";
+import { setKeyValue } from "./keyValueStore";
+
+export type OnboardingChoice =
+  | "import"
+  | "import_yaak"
+  | "example"
+  | "fresh"
+  | "open_folder"
+  | "clone_git";
+
+const NEW_WORKSPACE_NAME = "My Workspace";
+
+/**
+ * Remembered so later surfaces can lean toward what the user came for (an importer, the
+ * example, or a blank slate). Nothing reads it yet.
+ */
+export function recordOnboardingChoice(choice: OnboardingChoice) {
+  setKeyValue({
+    namespace: "global",
+    key: "onboarding",
+    value: { choice, at: new Date().toISOString() },
+  }).catch(console.error);
+}
+
+export async function createFreshWorkspace() {
+  const workspaceId = await createGlobalModel({ model: "workspace", name: NEW_WORKSPACE_NAME });
+  await router.navigate({ to: "/workspaces/$workspaceId", params: { workspaceId } });
+}
+
+export async function createExampleWorkspace() {
+  const created = await rpc<BatchUpsertResult>("cmd_create_example_workspace", {});
+  const workspace = created.workspaces[0];
+  if (workspace == null) throw new Error("Example workspace was not created");
+  const firstRequest = created.httpRequests.find((r) => r.name === "List posts");
+  await router.navigate({
+    to: "/workspaces/$workspaceId",
+    params: { workspaceId: workspace.id },
+    search: firstRequest ? { request_id: firstRequest.id } : {},
+  });
+}

apps/yaak-client/lib/prompt-form.tsx

@@ -25,13 +25,8 @@ export async function showPromptForm({
       id,
       title,
       description,
-      hideX: true,
       size: size ?? "sm",
-      disableBackdropClose: true, // Prevent accidental dismisses
-      onClose: () => {
-        // Click backdrop, close, or escape
-        resolve(null);
-      },
+      disableClose: true,
       render: ({ hide }) =>
         Prompt({
           onCancel: () => {

apps/yaak-client/lib/requestSettings.ts

@@ -5,6 +5,7 @@ type ModelType = AnyModel["model"];
 type WorkspaceRequestSettings = Pick<
   Workspace,
   | "settingFollowRedirects"
+  | "settingHttpVersion"
   | "settingRequestMessageSize"
   | "settingRequestTimeout"
   | "settingSendCookies"
@@ -18,9 +19,7 @@ type ModelTypeWithSetting<K extends RequestSettingKey> = {
   [M in ModelType]: K extends keyof ModelForType<M> ? M : never;
 }[ModelType];
 
-export type RequestSettingDefinition<
-  K extends RequestSettingKey = RequestSettingKey,
-> = {
+export type RequestSettingDefinition<K extends RequestSettingKey = RequestSettingKey> = {
   defaultValue: WorkspaceRequestSettings[K];
   description: string;
   modelKey: K;
@@ -46,8 +45,7 @@ export const SETTING_REQUEST_TIMEOUT = defineRequestSetting({
 
 export const SETTING_REQUEST_MESSAGE_SIZE = defineRequestSetting({
   defaultValue: 64 * 1024 * 1024,
-  description:
-    "Maximum gRPC or WebSocket message size in MB. Set to 0 to disable.",
+  description: "Maximum gRPC or WebSocket message size in MB. Set to 0 to disable.",
   modelKey: "settingRequestMessageSize",
   models: ["workspace", "folder", "websocket_request", "grpc_request"],
   title: "Message Size Limit",
@@ -57,13 +55,7 @@ export const SETTING_VALIDATE_CERTIFICATES = defineRequestSetting({
   defaultValue: true,
   description: "When disabled, skip validation of server certificates.",
   modelKey: "settingValidateCertificates",
-  models: [
-    "workspace",
-    "folder",
-    "http_request",
-    "websocket_request",
-    "grpc_request",
-  ],
+  models: ["workspace", "folder", "http_request", "websocket_request", "grpc_request"],
   title: "Validate TLS certificates",
 });
 
@@ -75,10 +67,17 @@ export const SETTING_FOLLOW_REDIRECTS = defineRequestSetting({
   title: "Follow redirects",
 });
 
+export const SETTING_HTTP_VERSION = defineRequestSetting({
+  defaultValue: "auto",
+  description: "Force HTTP/1.1 or HTTP/2 for servers that don't negotiate the version correctly.",
+  modelKey: "settingHttpVersion",
+  models: ["workspace", "folder", "http_request"],
+  title: "HTTP version",
+});
+
 export const SETTING_SEND_COOKIES = defineRequestSetting({
   defaultValue: true,
-  description:
-    "Attach matching cookies from the active cookie jar to outgoing requests.",
+  description: "Attach matching cookies from the active cookie jar to outgoing requests.",
   modelKey: "settingSendCookies",
   models: ["workspace", "folder", "http_request", "websocket_request"],
   title: "Automatically send cookies",
@@ -86,8 +85,7 @@ export const SETTING_SEND_COOKIES = defineRequestSetting({
 
 export const SETTING_STORE_COOKIES = defineRequestSetting({
   defaultValue: true,
-  description:
-    "Save cookies from Set-Cookie response headers to the active cookie jar.",
+  description: "Save cookies from Set-Cookie response headers to the active cookie jar.",
   modelKey: "settingStoreCookies",
   models: ["workspace", "folder", "http_request", "websocket_request"],
   title: "Automatically store cookies",

apps/yaak-client/lib/resolvedModelName.cases.ts

@@ -0,0 +1,79 @@
+/* oxlint-disable no-template-curly-in-string */
+
+/*
+ * Shared expectations for `resolvedModelName`.
+ *
+ * The request template function plugin carries a hand-copied `resolvedModelName` and template-tag
+ * scanner, because importing this module into the plugin bundle fails to build on Windows in CI.
+ * Both `resolvedModelName.test.ts` here and `plugins/template-function-request/tests/
+ * resolvedModelName.test.ts` iterate these cases, so changing an expectation on this side
+ * automatically exercises the plugin's copy and a drifting copy fails its own suite.
+ *
+ * Keep this file dependency-free — the plugin test imports it by relative path, so anything it
+ * pulls in would have to resolve from both packages.
+ */
+
+export interface ResolvedModelNameCase {
+  /** Test name, used as the `test.each` title on both sides. */
+  name: string;
+  /** `url` of the `http_request` under test. */
+  url: string;
+  /** `name` of the `http_request`, when the case is about an explicit name. */
+  requestName?: string;
+  /** What `resolvedModelName` must return. */
+  expected: string;
+}
+
+export const resolvedModelNameCases: ResolvedModelNameCase[] = [
+  {
+    name: "returns the name when there is one",
+    url: "https://example.com",
+    requestName: "My Request",
+    expected: "My Request",
+  },
+  {
+    name: "replaces a simple tag with its contents",
+    url: "${[ base_url ]}/users",
+    expected: "base_url/users",
+  },
+  {
+    name: "replaces a tag containing a quoted argument with a space",
+    url: "${[ fn(arg='my key') ]}/users",
+    expected: "fn(arg='my key')/users",
+  },
+  {
+    name: "replaces each tag in a multi-tag string",
+    url: "${[ fn(arg='my key') ]}/a/${[ other(b='x y') ]}/b",
+    expected: "fn(arg='my key')/a/other(b='x y')/b",
+  },
+  {
+    name: "keeps a quoted `]}` inside the tag",
+    url: "${[ fn(arg='x]}y') ]}/users",
+    expected: "fn(arg='x]}y')/users",
+  },
+  {
+    name: "keeps an escaped quote inside the tag",
+    url: "${[ fn(arg='it\\'s ]}') ]}/users",
+    expected: "fn(arg='it\\'s ]}')/users",
+  },
+  {
+    name: "closes at the first `]}` when a quote is left unterminated",
+    url: "${[ fn(arg='oops ]}/users",
+    expected: "fn(arg='oops/users",
+  },
+  {
+    name: "stops each tag at its first closing bracket",
+    url: "${[ a ]}${[ b ]}",
+    expected: "ab",
+  },
+  {
+    name: "strips the protocol",
+    url: "https://example.com/${[ path ]}",
+    expected: "example.com/path",
+  },
+  {
+    name: "falls back to a generic name when the url is empty",
+    url: "",
+    expected: "HTTP Request",
+  },
+];

apps/yaak-client/lib/resolvedModelName.test.ts

@@ -0,0 +1,21 @@
+import type { HttpRequest } from "@yaakapp-internal/models";
+import { describe, expect, test, vi } from "vite-plus/test";
+import { resolvedModelNameCases } from "./resolvedModelName.cases";
+
+// resolvedModelName only reads plain model fields, but its module imports pull in the
+// platform singleton, which needs a browser. Stub them out to keep this a pure unit test.
+vi.mock("@yaakapp-internal/models", () => ({ foldersAtom: {} }));
+vi.mock("./jotai", () => ({ jotaiStore: { get: () => [] } }));
+
+const { resolvedModelName } = await import("./resolvedModelName");
+
+function httpRequest(url: string, name = ""): HttpRequest {
+  return { id: "rq_test", model: "http_request", name, url } as HttpRequest;
+}
+
+describe("resolvedModelName", () => {
+  // Shared with the plugin's hand-copied scanner. See `resolvedModelName.cases.ts`.
+  test.each(resolvedModelNameCases)("$name", ({ url, requestName, expected }) => {
+    expect(resolvedModelName(httpRequest(url, requestName))).toEqual(expected);
+  });
+});

apps/yaak-client/lib/resolvedModelName.ts

@@ -1,6 +1,7 @@
 import type { AnyModel } from "@yaakapp-internal/models";
 import { foldersAtom } from "@yaakapp-internal/models";
 import { jotaiStore } from "./jotai";
+import { replaceTemplateTags } from "./templateTags";
 
 export function resolvedModelName(r: AnyModel | null): string {
   if (r == null) return "";
@@ -15,7 +16,7 @@ export function resolvedModelName(r: AnyModel | null): string {
   }
 
   // Replace variable syntax with variable name
-  const withoutVariables = r.url.replace(/\$\{\[\s*([^\]\s]+)\s*]}/g, "$1");
+  const withoutVariables = replaceTemplateTags(r.url, (m) => m.inner.trim());
   if (withoutVariables.trim() === "") {
     return r.model === "http_request"
       ? r.bodyType && r.bodyType === "graphql"

apps/yaak-client/lib/templateTags.test.ts

@@ -0,0 +1,176 @@
+/* oxlint-disable no-template-curly-in-string */
+
+import { describe, expect, test } from "vite-plus/test";
+import { findTemplateTags, replaceTemplateTags } from "./templateTags";
+
+/** Seeded so a fuzz failure reproduces. */
+function random(seed: number): () => number {
+  let state = seed;
+  return () => {
+    state = (state + 0x6d2b79f5) | 0;
+    let t = Math.imul(state ^ (state >>> 15), 1 | state);
+    t = (t + Math.imul(t ^ (t >>> 7), 61 | t)) ^ t;
+    return ((t ^ (t >>> 14)) >>> 0) / 4294967296;
+  };
+}
+
+function millis(run: () => void): number {
+  const started = performance.now();
+  run();
+  return performance.now() - started;
+}
+
+describe("findTemplateTags", () => {
+  test("finds a simple tag", () => {
+    expect(findTemplateTags("${[ my_var ]}")).toEqual([{ start: 0, end: 13, inner: " my_var " }]);
+  });
+
+  test("finds a tag surrounded by text", () => {
+    const text = 'a="${[ my_var ]}"';
+    expect(findTemplateTags(text)).toEqual([{ start: 3, end: 16, inner: " my_var " }]);
+    expect(text.slice(3, 16)).toEqual("${[ my_var ]}");
+  });
+
+  test("finds an empty tag", () => {
+    expect(findTemplateTags("${[]}")).toEqual([{ start: 0, end: 5, inner: "" }]);
+  });
+
+  test("keeps a quoted `]}` inside the tag", () => {
+    const text = "${[ fn(a='x]}y') ]}";
+    expect(findTemplateTags(text)).toEqual([
+      { start: 0, end: text.length, inner: " fn(a='x]}y') " },
+    ]);
+  });
+
+  test("keeps an escaped quote inside the string", () => {
+    const text = "${[ fn(a='it\\'s ]}') ]}";
+    expect(findTemplateTags(text)).toEqual([
+      { start: 0, end: text.length, inner: " fn(a='it\\'s ]}') " },
+    ]);
+  });
+
+  test("keeps a b64 string in one tag", () => {
+    const text = "${[ b64'Zm9v' ]}";
+    expect(findTemplateTags(text)).toEqual([{ start: 0, end: text.length, inner: " b64'Zm9v' " }]);
+  });
+
+  test("closes at the first `]}` when a quote is left unterminated", () => {
+    const text = "${[ fn(a='unterminated ]} rest";
+    expect(findTemplateTags(text)).toEqual([{ start: 0, end: 25, inner: " fn(a='unterminated " }]);
+    expect(text.slice(0, 25)).toEqual("${[ fn(a='unterminated ]}");
+  });
+
+  test("finds two tags with text between them", () => {
+    expect(findTemplateTags("one ${[ a ]} two ${[ b ]} three")).toEqual([
+      { start: 4, end: 12, inner: " a " },
+      { start: 17, end: 25, inner: " b " },
+    ]);
+  });
+
+  test("finds two adjacent tags", () => {
+    expect(findTemplateTags("${[ a ]} ${[ b ]}")).toEqual([
+      { start: 0, end: 8, inner: " a " },
+      { start: 9, end: 17, inner: " b " },
+    ]);
+  });
+
+  test("finds two tags that each quote a `]}`", () => {
+    const text = "${[ a(x='1]}') ]} and ${[ b(y='2]}') ]}";
+    expect(findTemplateTags(text)).toEqual([
+      { start: 0, end: 17, inner: " a(x='1]}') " },
+      { start: 22, end: 39, inner: " b(y='2]}') " },
+    ]);
+  });
+
+  test("finds nothing in an unclosed tag", () => {
+    expect(findTemplateTags("${[ no close")).toEqual([]);
+  });
+
+  test("finds nothing in text without tags", () => {
+    expect(findTemplateTags('{"a": "${b}", "c": 1}')).toEqual([]);
+  });
+
+  test("treats a nested `${[` as ordinary content", () => {
+    expect(findTemplateTags("${[ a ${[ b ]}")).toEqual([{ start: 0, end: 14, inner: " a ${[ b " }]);
+  });
+
+  test("finishes fast on a long run of quotes", () => {
+    const text = `\${[${"'".repeat(20_000)} ]}`;
+    let matches: unknown;
+    const elapsed = millis(() => {
+      matches = findTemplateTags(text);
+    });
+    expect(matches).toEqual([{ start: 0, end: text.length, inner: `${"'".repeat(20_000)} ` }]);
+    expect(elapsed).toBeLessThan(200);
+  });
+
+  test("finishes fast on a long run of unpairable quotes", () => {
+    // Every quote is escaped, so none of them opens a string that closes
+    const text = `\${[${"\\'".repeat(20_000)} ]}`;
+    let matches: unknown;
+    const elapsed = millis(() => {
+      matches = findTemplateTags(text);
+    });
+    expect(matches).toHaveLength(1);
+    expect(elapsed).toBeLessThan(200);
+  });
+
+  test("finishes fast on a long run of openers that never close", () => {
+    const text = "${[".repeat(20_000);
+    let matches: unknown;
+    const elapsed = millis(() => {
+      matches = findTemplateTags(text);
+    });
+    expect(matches).toEqual([]);
+    expect(elapsed).toBeLessThan(200);
+  });
+
+  test("never throws, and always reports real bounds", () => {
+    const alphabet = ["$", "{", "[", "]", "}", "'", "\\", "a", "b"];
+    const next = random(0x5eed);
+
+    for (let n = 0; n < 2_000; n++) {
+      let text = "";
+      const length = Math.floor(next() * 31);
+      for (let i = 0; i < length; i++) {
+        text += alphabet[Math.floor(next() * alphabet.length)];
+      }
+
+      let matches: ReturnType<typeof findTemplateTags> = [];
+      expect(() => {
+        matches = findTemplateTags(text);
+      }, text).not.toThrow();
+
+      let previousEnd = 0;
+      for (const match of matches) {
+        expect(text.slice(match.start, match.start + 3), text).toEqual("${[");
+        expect(text.slice(match.end - 2, match.end), text).toEqual("]}");
+        expect(text.slice(match.start + 3, match.end - 2), text).toEqual(match.inner);
+        expect(match.start, text).toBeGreaterThanOrEqual(previousEnd);
+        previousEnd = match.end;
+      }
+    }
+  });
+});
+
+describe("replaceTemplateTags", () => {
+  test("leaves text without tags alone", () => {
+    expect(replaceTemplateTags('{"a": 1}', () => "x")).toEqual('{"a": 1}');
+  });
+
+  test("replaces each tag with its trimmed contents", () => {
+    expect(replaceTemplateTags("${[ a ]}/x/${[ b ]}", (m) => m.inner.trim())).toEqual("a/x/b");
+  });
+
+  test("keeps the replaced length when padding", () => {
+    const tag = "${[ fn(arg='x]}y') ]}";
+    const text = `{"a": "${tag}"}`;
+    const replaced = replaceTemplateTags(text, (m) => "1".repeat(m.end - m.start));
+    expect(replaced).toEqual(`{"a": "${"1".repeat(tag.length)}"}`);
+    expect(replaced).toHaveLength(text.length);
+  });
+
+  test("leaves an unclosed tag in place", () => {
+    expect(replaceTemplateTags("${[ oops", () => "x")).toEqual("${[ oops");
+  });
+});

apps/yaak-client/lib/templateTags.ts

@@ -0,0 +1,137 @@
+/*
+ * Finding template tags in text.
+ *
+ * A tag closes at `]}`, but a quoted argument is allowed to contain `]}` of its own — the
+ * printer in `crates/yaak-templates` emits `${[ fn(a='x]}y') ]}` verbatim — so the scan has to
+ * step over quoted strings. It mirrors the Lezer grammar in
+ * `components/core/Editor/twig/twig.grammar`: a terminated `'…'` (where `\` escapes whatever
+ * follows it) is consumed whole, and an unterminated quote is just another character, so a
+ * half-typed tag still closes at the next `]}` instead of swallowing the rest of the document.
+ *
+ * This was a regex until CodeQL flagged it (js/polynomial-redos): matching an unterminated
+ * quote needed a negative lookahead that rescanned to the end of the input at every unpaired
+ * quote, which is quadratic on text an attacker picks. The scan below is linear instead — see
+ * the notes on `closingQuoteTable` and on the dead-end set in `findTemplateTags` for why.
+ */
+
+const QUOTE = 0x27; // '
+const BACKSLASH = 0x5c; // \
+const CLOSE_BRACKET = 0x5d; // ]
+const CLOSE_BRACE = 0x7d; // }
+
+/** The `${[`…`]}` bounds of one tag, and what sits between them. */
+export interface TemplateTagMatch {
+  /** Index of the `$` that opens the tag. */
+  start: number;
+  /** Index just past the closing `]}`. */
+  end: number;
+  /** Everything between `${[` and `]}`, not trimmed. */
+  inner: string;
+}
+
+/**
+ * For every index `i`, the index of the `'` that closes a string whose body starts at `i`, or
+ * `-1` when nothing does.
+ *
+ * Built right to left in a single pass, which is the trick that replaces the regex lookahead:
+ * whether a quote opens a terminated string depends only on the text after it, so the answer
+ * can be computed once for every position instead of re-derived at each quote. Skipping a
+ * string of any length then costs one lookup.
+ */
+function closingQuoteTable(text: string): Int32Array {
+  // Two extra slots so a `\` in the last position can read past the end and find `-1`
+  const table = new Int32Array(text.length + 2).fill(-1);
+  for (let i = text.length - 1; i >= 0; i--) {
+    const c = text.charCodeAt(i);
+    // A backslash escapes whatever follows it, including a quote
+    const next = c === BACKSLASH ? table[i + 2] : table[i + 1];
+    table[i] = c === QUOTE ? i : (next ?? -1);
+  }
+  return table;
+}
+
+/**
+ * Finds every template tag in `text`, in order and without overlaps.
+ *
+ * A `${[` with no `]}` after it isn't a tag, and neither is a `${[` nested inside a tag body —
+ * both are ordinary content, same as the regex this replaced treated them.
+ */
+export function findTemplateTags(text: string): TemplateTagMatch[] {
+  const matches: TemplateTagMatch[] = [];
+
+  // Both built only once a scan actually needs them, so short values allocate nothing
+  let closingQuotes: Int32Array | null = null;
+
+  /*
+   * Body positions a previous scan already ran off the end of the text from. Where a scan ends
+   * up depends only on where it starts, so a scan that walks into one of these would repeat
+   * that same walk and fail the same way, and can stop right there.
+   *
+   * That bound is what keeps the whole pass linear: every position enters this set at most
+   * once, and every step of every scan either visits a position for the first time or ends
+   * that scan.
+   */
+  let deadEnds: Set<number> | null = null;
+
+  let searchFrom = 0;
+  while (searchFrom < text.length) {
+    const start = text.indexOf("${[", searchFrom);
+    if (start < 0) break;
+
+    const visited: number[] = [];
+    let end = -1;
+    let i = start + 3;
+    while (i < text.length) {
+      if (deadEnds?.has(i)) break;
+      visited.push(i);
+
+      const c = text.charCodeAt(i);
+      if (c === QUOTE) {
+        closingQuotes ??= closingQuoteTable(text);
+        const close = closingQuotes[i + 1] ?? -1;
+        // An unterminated quote is an ordinary character, so only step over a closed string
+        i = close < 0 ? i + 1 : close + 1;
+        continue;
+      }
+
+      if (c === CLOSE_BRACKET && text.charCodeAt(i + 1) === CLOSE_BRACE) {
+        end = i + 2;
+        break;
+      }
+
+      i += 1;
+    }
+
+    if (end < 0) {
+      // Not a tag. Resume past the opener: a real tag may start inside a string this scan
+      // stepped over.
+      deadEnds ??= new Set();
+      for (const position of visited) deadEnds.add(position);
+      searchFrom = start + 3;
+      continue;
+    }
+
+    matches.push({ start, end, inner: text.slice(start + 3, end - 2) });
+    searchFrom = end;
+  }
+
+  return matches;
+}
+
+/** Rewrites every template tag in `text` with whatever `replace` returns for it. */
+export function replaceTemplateTags(
+  text: string,
+  replace: (match: TemplateTagMatch) => string,
+): string {
+  const matches = findTemplateTags(text);
+  if (matches.length === 0) return text;
+
+  let result = "";
+  let copiedTo = 0;
+  for (const match of matches) {
+    result += text.slice(copiedTo, match.start) + replace(match);
+    copiedTo = match.end;
+  }
+
+  return result + text.slice(copiedTo);
+}

apps/yaak-client/lib/validateHttpHeader.test.ts

@@ -0,0 +1,44 @@
+import { describe, expect, test } from "vite-plus/test";
+import { validateHttpHeader } from "./validateHttpHeader";
+
+describe("validateHttpHeader", () => {
+  test("allows an empty value", () => {
+    expect(validateHttpHeader("")).toEqual(true);
+  });
+
+  test("allows a plain header name", () => {
+    expect(validateHttpHeader("X-Api-Key")).toEqual(true);
+  });
+
+  test("rejects a header name with a space", () => {
+    expect(validateHttpHeader("X Api Key")).toEqual(false);
+  });
+
+  test("allows a simple template tag", () => {
+    expect(validateHttpHeader("${[ my_var ]}")).toEqual(true);
+  });
+
+  test("allows a tag containing a quoted argument with a space", () => {
+    expect(validateHttpHeader("${[ fn(arg='my key') ]}")).toEqual(true);
+  });
+
+  test("allows a multi-tag value", () => {
+    expect(validateHttpHeader("${[ fn(arg='my key') ]}-${[ other(b='x y') ]}")).toEqual(true);
+  });
+
+  test("allows a tag whose quoted argument contains `]}`", () => {
+    expect(validateHttpHeader("${[ fn(arg='x]}y') ]}")).toEqual(true);
+  });
+
+  test("allows a tag whose quoted argument contains an escaped quote", () => {
+    expect(validateHttpHeader("${[ fn(arg='it\\'s ]}') ]}")).toEqual(true);
+  });
+
+  test("rejects a tag with a quoted `]}` followed by an invalid character", () => {
+    expect(validateHttpHeader("${[ fn(arg='x]}y') ]} oops")).toEqual(false);
+  });
+
+  test("rejects a tag followed by an invalid character", () => {
+    expect(validateHttpHeader("${[ my_var ]} oops")).toEqual(false);
+  });
+});

apps/yaak-client/lib/validateHttpHeader.ts

@@ -0,0 +1,11 @@
+import { replaceTemplateTags } from "./templateTags";
+
+export function validateHttpHeader(v: string): boolean {
+  if (v === "") {
+    return true;
+  }
+
+  // Template strings are not allowed so we replace them with a valid example string
+  const withoutTemplateStrings = replaceTemplateTags(v, () => "123");
+  return withoutTemplateStrings.match(/^[a-zA-Z0-9-_]+$/) !== null;
+}

apps/yaak-client/package.json

@@ -9,7 +9,7 @@
     "lint": "tsc --noEmit"
   },
   "dependencies": {
-    "@codemirror/commands": "^6.8.1",
+    "@codemirror/commands": "^6.11.1",
     "@codemirror/lang-javascript": "^6.2.4",
     "@codemirror/lang-json": "^6.0.1",
     "@codemirror/lang-markdown": "^6.3.2",
@@ -19,7 +19,7 @@
     "@codemirror/merge": "^6.11.2",
     "@codemirror/search": "^6.5.11",
     "@dnd-kit/core": "^6.3.1",
-    "@gilbarbara/deep-equal": "^0.3.1",
+    "@gilbarbara/deep-equal": "^0.4.1",
     "@lezer/highlight": "^1.1.3",
     "@lezer/lr": "^1.3.3",
     "@mjackson/multipart-parser": "^0.10.1",
@@ -27,14 +27,14 @@
     "@replit/codemirror-vim": "^6.3.0",
     "@replit/codemirror-vscode-keymap": "^6.0.2",
     "@shopify/lang-jsonc": "^1.0.1",
-    "@tanstack/react-query": "^5.90.5",
-    "@tanstack/react-router": "^1.133.13",
-    "@tanstack/react-virtual": "^3.14.9",
+    "@tanstack/react-query": "^5.103.2",
+    "@tanstack/react-router": "^1.170.38",
+    "@tanstack/react-virtual": "^3.14.13",
     "@tauri-apps/api": "^2.11.0",
     "@tauri-apps/plugin-clipboard-manager": "^2.3.2",
     "@tauri-apps/plugin-dialog": "^2.7.1",
     "@tauri-apps/plugin-fs": "^2.5.1",
-    "@tauri-apps/plugin-log": "^2.8.0",
+    "@tauri-apps/plugin-log": "^2.9.2",
     "@tauri-apps/plugin-opener": "^2.5.4",
     "@tauri-apps/plugin-os": "^2.3.2",
     "@tauri-apps/plugin-shell": "^2.3.5",
@@ -45,26 +45,26 @@
     "date-fns": "^4.1.0",
     "deep-equal": "^2.2.3",
     "eventemitter3": "^5.0.1",
-    "focus-trap-react": "^11.0.4",
+    "focus-trap-react": "^12.0.3",
     "fuzzbunny": "^1.0.1",
-    "graphql": "^16.13.1",
-    "hexy": "^0.3.5",
+    "graphql": "^17.0.2",
+    "hexy": "^0.4.0",
     "history": "^5.3.0",
     "jotai": "^2.18.0",
     "jotai-family": "^1.0.1",
-    "js-md5": "^0.8.3",
+    "js-md5": "^0.9.2",
     "jsonc-parser": "^3.3.1",
-    "lucide-react": "^0.525.0",
+    "lucide-react": "^1.47.0",
     "mime": "^4.0.4",
-    "motion": "^12.4.7",
-    "nanoid": "^5.1.16",
+    "motion": "^13.4.0",
+    "nanoid": "^6.0.1",
     "papaparse": "^5.4.1",
     "parse-color": "^1.0.0",
     "react": "^19.2.0",
     "react-colorful": "^5.6.1",
     "react-dom": "^19.2.0",
     "react-markdown": "^10.1.0",
-    "react-pdf": "^10.0.1",
+    "react-pdf": "^11.0.0",
     "react-syntax-highlighter": "^16.1.0",
     "react-use": "^17.6.1",
     "rehype-stringify": "^10.0.1",
@@ -73,32 +73,30 @@
     "slugify": "^1.6.6",
     "uuid": "^14.0.0",
     "vkbeautify": "^0.99.3",
-    "whatwg-mimetype": "^4.0.0",
+    "whatwg-mimetype": "^5.0.0",
     "yaml": "^2.8.3"
   },
   "devDependencies": {
     "@lezer/generator": "^1.8.0",
     "@rolldown/plugin-babel": "^0.2.3",
-    "@tanstack/router-plugin": "^1.127.5",
+    "@tanstack/router-plugin": "^1.168.40",
     "@types/babel__core": "^7.20.5",
-    "@types/node": "^24.0.13",
+    "@types/node": "^22.20.4",
     "@types/papaparse": "^5.3.16",
     "@types/parse-color": "^1.0.3",
     "@types/react": "^19.2.0",
     "@types/react-dom": "^19.2.0",
     "@types/react-syntax-highlighter": "^15.5.13",
     "@types/uuid": "^10.0.0",
-    "@types/whatwg-mimetype": "^3.0.2",
+    "@types/whatwg-mimetype": "^5.0.0",
     "@vitejs/plugin-react": "^6.0.1",
     "@yaakapp-internal/theme": "^1.0.0",
     "@yaakapp-internal/ui": "^1.0.0",
     "babel-plugin-react-compiler": "^1.0.0",
-    "internal-ip": "^8.0.0",
-    "rollup": "^4.60.3",
-    "vite": "npm:@voidzero-dev/vite-plus-core@^0.2.9",
-    "vite-plugin-static-copy": "^3.3.0",
-    "vite-plugin-svgr": "^4.5.0",
+    "rollup": "^4.63.4",
+    "vite": "npm:@voidzero-dev/vite-plus-core@^0.3.3",
+    "vite-plugin-static-copy": "^4.1.1",
     "vite-plugin-wasm": "^3.5.0",
-    "vite-plus": "^0.2.9"
+    "vite-plus": "^0.3.3"
   }
 }

apps/yaak-client/polyfills.test.ts

@@ -0,0 +1,167 @@
+import { describe, expect, test, vi } from "vite-plus/test";
+import { getOrInsert, getOrInsertComputed, readableStreamValues, sumPrecise } from "./polyfills";
+
+describe("getOrInsert", () => {
+  test("returns the existing value without replacing it", () => {
+    const map = new Map([["a", 1]]);
+    expect(getOrInsert.call(map, "a", 2)).toBe(1);
+    expect(map.get("a")).toBe(1);
+  });
+
+  test("inserts and returns the value for a missing key", () => {
+    const map = new Map<string, number>();
+    expect(getOrInsert.call(map, "a", 2)).toBe(2);
+    expect(map.get("a")).toBe(2);
+  });
+
+  test("works on a WeakMap", () => {
+    const key = {};
+    const map = new WeakMap<object, number>();
+    expect(getOrInsert.call(map, key, 1)).toBe(1);
+    expect(getOrInsert.call(map, key, 2)).toBe(1);
+  });
+});
+
+describe("getOrInsertComputed", () => {
+  test("returns the existing value without calling the callback", () => {
+    const map = new Map([["a", 1]]);
+    const callback = vi.fn(() => 2);
+    expect(getOrInsertComputed.call(map, "a", callback)).toBe(1);
+    expect(callback).not.toHaveBeenCalled();
+  });
+
+  test("calls the callback with the key and inserts its result", () => {
+    const map = new Map<string, string>();
+    expect(getOrInsertComputed.call(map, "a", (key) => `${String(key)}!`)).toBe("a!");
+    expect(map.get("a")).toBe("a!");
+  });
+
+  test("stores what the callback returns even if the callback set the key", () => {
+    const map = new Map<string, number>();
+    const result = getOrInsertComputed.call(map, "a", () => {
+      map.set("a", 1);
+      return 2;
+    });
+    expect(result).toBe(2);
+    expect(map.get("a")).toBe(2);
+  });
+
+  test("canonicalizes -0 to +0", () => {
+    const map = new Map<number, number>();
+    getOrInsertComputed.call(map, -0, (key) => {
+      expect(Object.is(key, 0)).toBe(true);
+      return 1;
+    });
+    expect(Object.is([...map.keys()][0], 0)).toBe(true);
+  });
+
+  test("throws when the callback is not a function, even for an existing key", () => {
+    const map = new Map([["a", 1]]);
+    // @ts-expect-error testing a non-callable callback
+    expect(() => getOrInsertComputed.call(map, "a", 1)).toThrow(TypeError);
+  });
+
+  test("is installed on Map and WeakMap", () => {
+    const map = new Map<string, number[]>();
+    map.getOrInsertComputed("a", () => []).push(1);
+    map.getOrInsertComputed("a", () => []).push(2);
+    expect(map.get("a")).toEqual([1, 2]);
+
+    const key = {};
+    const weakMap = new WeakMap<object, number>();
+    expect(weakMap.getOrInsertComputed(key, () => 1)).toBe(1);
+    expect(weakMap.getOrInsert(key, 2)).toBe(1);
+  });
+});
+
+describe("sumPrecise", () => {
+  test("sums without intermediate rounding", () => {
+    expect(sumPrecise([1e20, 0.1, -1e20])).toBe(0.1);
+    expect(sumPrecise([0.1, 0.2, 0.3])).toBe(0.6);
+    expect(sumPrecise(Array.from({ length: 10 }, () => 0.1))).toBe(1);
+  });
+
+  test("rounds half to even on the final step", () => {
+    expect(sumPrecise([1, 1e-16, 1e-16])).toBe(1.0000000000000002);
+    expect(sumPrecise([1, 2 ** -53])).toBe(1);
+  });
+
+  test("handles zeroes, infinities and NaN like the spec", () => {
+    expect(Object.is(sumPrecise([]), -0)).toBe(true);
+    expect(Object.is(sumPrecise([-0, -0]), -0)).toBe(true);
+    expect(Object.is(sumPrecise([-0, 0]), 0)).toBe(true);
+    expect(Object.is(sumPrecise([1, -1]), 0)).toBe(true);
+    expect(sumPrecise([1, Infinity])).toBe(Infinity);
+    expect(sumPrecise([1, -Infinity])).toBe(-Infinity);
+    expect(sumPrecise([Infinity, -Infinity])).toBeNaN();
+    expect(sumPrecise([1, NaN])).toBeNaN();
+  });
+
+  test("accepts any iterable and rejects non-numbers", () => {
+    expect(sumPrecise(new Set([1, 2, 3]))).toBe(6);
+    // @ts-expect-error testing a non-number item
+    expect(() => sumPrecise([1, "2"])).toThrow(TypeError);
+  });
+
+  test("is installed on Math", () => {
+    expect(Math.sumPrecise([1, 2, 3])).toBe(6);
+  });
+});
+
+describe("readableStreamValues", () => {
+  const values = readableStreamValues<number>;
+
+  function streamOf(chunks: number[], onCancel?: () => void) {
+    return new ReadableStream<number>({
+      start(controller) {
+        for (const chunk of chunks) controller.enqueue(chunk);
+        controller.close();
+      },
+      cancel: onCancel,
+    });
+  }
+
+  test("yields every chunk and releases the lock", async () => {
+    const stream = streamOf([1, 2, 3]);
+    const seen: number[] = [];
+    for await (const chunk of values.call(stream)) seen.push(chunk);
+    expect(seen).toEqual([1, 2, 3]);
+    expect(stream.locked).toBe(false);
+  });
+
+  test("cancels the stream when the loop exits early", async () => {
+    const onCancel = vi.fn();
+    const stream = new ReadableStream<number>({
+      pull(controller) {
+        controller.enqueue(1);
+      },
+      cancel: onCancel,
+    });
+    for await (const _ of values.call(stream)) break;
+    expect(onCancel).toHaveBeenCalled();
+    expect(stream.locked).toBe(false);
+  });
+
+  test("leaves the stream open with preventCancel", async () => {
+    const onCancel = vi.fn();
+    const stream = streamOf([1, 2], onCancel);
+    for await (const _ of values.call(stream, { preventCancel: true })) break;
+    expect(onCancel).not.toHaveBeenCalled();
+    expect(stream.locked).toBe(false);
+  });
+
+  test("releases the lock and rethrows when cancelling rejects", async () => {
+    const stream = new ReadableStream<number>({
+      pull(controller) {
+        controller.enqueue(1);
+      },
+      cancel() {
+        throw new Error("cancel failed");
+      },
+    });
+    await expect(async () => {
+      for await (const _ of values.call(stream)) break;
+    }).rejects.toThrow("cancel failed");
+    expect(stream.locked).toBe(false);
+  });
+});

apps/yaak-client/polyfills.ts

@@ -0,0 +1,172 @@
+/**
+ * Built-ins that PDF.js's modern build calls unconditionally but the system WebKit on
+ * older macOS lacks: the upsert methods and `Math.sumPrecise` arrived in Safari 26.2,
+ * and async iteration of `ReadableStream` in Safari 27. Without them the PDF viewer
+ * throws as soon as it renders. Loaded first by `index.html`, and by `pdfWorker.ts`
+ * because the worker has its own globals.
+ *
+ * Each is defined only when missing, so newer engines keep their native versions.
+ */
+
+type KeyedCollection<K, V> = {
+  has(key: K): boolean;
+  get(key: K): V | undefined;
+  set(key: K, value: V): unknown;
+};
+
+/** https://tc39.es/proposal-upsert/#sec-map.prototype.getOrInsert */
+export function getOrInsert<K, V>(this: KeyedCollection<K, V>, key: K, value: V): V {
+  if (this.has(key)) return this.get(key) as V;
+  this.set(key, value);
+  return value;
+}
+
+/** https://tc39.es/proposal-upsert/#sec-map.prototype.getOrInsertComputed */
+export function getOrInsertComputed<K, V>(
+  this: KeyedCollection<K, V>,
+  key: K,
+  callbackfn: (key: K) => V,
+): V {
+  if (typeof callbackfn !== "function") {
+    throw new TypeError("getOrInsertComputed callback is not a function");
+  }
+  if (this.has(key)) return this.get(key) as V;
+  // Map keys are canonicalized, so -0 is stored and passed on as +0
+  const k = (Object.is(key, -0) ? 0 : key) as K;
+  const value = callbackfn(k);
+  // The spec sets after the callback even if the callback inserted the key itself
+  this.set(k, value);
+  return value;
+}
+
+/**
+ * https://tc39.es/proposal-math-sum/
+ *
+ * Shewchuk's exact summation with round-half-even on the final step (the algorithm
+ * behind Python's `math.fsum`). A finite input set whose running sum overflows
+ * partway through is not handled exactly, which PDF.js's byte lengths and widths
+ * never come near.
+ */
+export function sumPrecise(items: Iterable<number>): number {
+  const partials: number[] = [];
+  let allNegativeZero = true;
+  let sawNaN = false;
+  let sawPositiveInfinity = false;
+  let sawNegativeInfinity = false;
+
+  for (const item of items) {
+    if (typeof item !== "number") {
+      throw new TypeError("Math.sumPrecise requires an iterable of numbers");
+    }
+    if (!Object.is(item, -0)) allNegativeZero = false;
+    if (Number.isNaN(item)) {
+      sawNaN = true;
+    } else if (item === Infinity) {
+      sawPositiveInfinity = true;
+    } else if (item === -Infinity) {
+      sawNegativeInfinity = true;
+    } else {
+      let x = item;
+      let i = 0;
+      for (let y of partials) {
+        if (Math.abs(x) < Math.abs(y)) [x, y] = [y, x];
+        const hi = x + y;
+        const lo = y - (hi - x);
+        if (lo !== 0) partials[i++] = lo;
+        x = hi;
+      }
+      partials.length = i;
+      partials.push(x);
+    }
+  }
+
+  if (sawNaN || (sawPositiveInfinity && sawNegativeInfinity)) return NaN;
+  if (sawPositiveInfinity) return Infinity;
+  if (sawNegativeInfinity) return -Infinity;
+  if (allNegativeZero) return -0;
+
+  let n = partials.length;
+  let hi = 0;
+  let lo = 0;
+  if (n > 0) {
+    hi = partials[--n] as number;
+    while (n > 0) {
+      const x = hi;
+      const y = partials[--n] as number;
+      hi = x + y;
+      lo = y - (hi - x);
+      if (lo !== 0) break;
+    }
+    const next = partials[n - 1];
+    if (n > 0 && next != null && ((lo < 0 && next < 0) || (lo > 0 && next > 0))) {
+      const y = lo * 2;
+      const x = hi + y;
+      if (y === x - hi) hi = x;
+    }
+  }
+  return hi === 0 ? 0 : hi;
+}
+
+/** https://streams.spec.whatwg.org/#rs-asynciterator */
+export async function* readableStreamValues<R>(
+  this: ReadableStream<R>,
+  { preventCancel = false }: { preventCancel?: boolean } = {},
+): AsyncGenerator<R, undefined, undefined> {
+  const reader = this.getReader();
+  let finished = false;
+  try {
+    while (true) {
+      const { done, value } = await reader.read();
+      if (done) {
+        finished = true;
+        return;
+      }
+      yield value;
+    }
+  } catch (err) {
+    finished = true;
+    throw err;
+  } finally {
+    // Leaving the loop early (break, return, throw in the body) cancels the stream. The
+    // lock is released even if cancelling rejects, which then propagates as in the spec.
+    try {
+      if (!finished && !preventCancel) await reader.cancel();
+    } finally {
+      reader.releaseLock();
+    }
+  }
+}
+
+function define(target: object, key: PropertyKey, value: unknown) {
+  if (key in target) return;
+  Object.defineProperty(target, key, { value, writable: true, configurable: true });
+}
+
+define(Map.prototype, "getOrInsert", getOrInsert);
+define(Map.prototype, "getOrInsertComputed", getOrInsertComputed);
+define(WeakMap.prototype, "getOrInsert", getOrInsert);
+define(WeakMap.prototype, "getOrInsertComputed", getOrInsertComputed);
+define(Math, "sumPrecise", sumPrecise);
+if (typeof ReadableStream !== "undefined") {
+  define(ReadableStream.prototype, "values", readableStreamValues);
+  define(
+    ReadableStream.prototype,
+    Symbol.asyncIterator,
+    Reflect.get(ReadableStream.prototype, "values"),
+  );
+}
+
+// TypeScript's lib does not describe these yet
+declare global {
+  interface Map<K, V> {
+    getOrInsert(key: K, value: V): V;
+    getOrInsertComputed(key: K, callbackfn: (key: K) => V): V;
+  }
+  interface WeakMap<K extends WeakKey, V> {
+    getOrInsert(key: K, value: V): V;
+    getOrInsertComputed(key: K, callbackfn: (key: K) => V): V;
+  }
+  interface Math {
+    sumPrecise(items: Iterable<number>): number;
+  }
+}

apps/yaak-client/react-augment.d.ts

@@ -0,0 +1,8 @@
+import "react";
+
+declare module "react" {
+  interface HTMLAttributes<T> {
+    // Not in @types/react yet; opts editable elements out of macOS Writing Tools
+    writingsuggestions?: "true" | "false";
+  }
+}

apps/yaak-client/routes/index.tsx

@@ -1,10 +1,19 @@
 import { createFileRoute } from "@tanstack/react-router";
+import { Onboarding } from "../components/Onboarding";
 import { RedirectToLatestWorkspace } from "../components/RedirectToLatestWorkspace";
 
+type IndexSearchSchema = {
+  /** Show the home screen even when workspaces exist. Set by the dev menu. */
+  home?: true;
+};
+
 export const Route = createFileRoute("/")({
   component: RouteComponent,
+  validateSearch: (search: Record<string, unknown>): IndexSearchSchema =>
+    search.home === true ? { home: true } : {},
 });
 
 function RouteComponent() {
-  return <RedirectToLatestWorkspace />;
+  const { home } = Route.useSearch();
+  return home ? <Onboarding /> : <RedirectToLatestWorkspace />;
 }

apps/yaak-client/vite.config.ts

@@ -1,11 +1,11 @@
 // @ts-ignore
 import { tanstackRouter } from "@tanstack/router-plugin/vite";
 import react from "@vitejs/plugin-react";
+import fs from "node:fs";
 import { createRequire } from "node:module";
 import path from "node:path";
 import { defineConfig, normalizePath } from "vite-plus";
 import { viteStaticCopy } from "vite-plugin-static-copy";
-import svgr from "vite-plugin-svgr";
 import wasm from "vite-plugin-wasm";
 
 const require = createRequire(import.meta.url);
@@ -16,6 +16,12 @@ const standardFontsDir = normalizePath(
   path.join(path.dirname(require.resolve("pdfjs-dist/package.json")), "standard_fonts"),
 );
 
+// The app's own icons, served as the page icon rather than copied into the client:
+// the bundled app and the tab should not be able to disagree about what Yaak looks like.
+const iconsDir = normalizePath(
+  path.join(import.meta.dirname, "../../crates-tauri/yaak-app-client/icons/release"),
+);
+
 /**
  * Which host the platform package installs. `web` builds Yaak to run in a plain
  * browser tab, with its own IndexedDB store instead of the Rust engine; anything
@@ -23,6 +29,84 @@ const standardFontsDir = normalizePath(
  */
 const yaakTarget = process.env.YAAK_TARGET === "web" ? "web" : "desktop";
 
+const webUrl = "https://web.yaak.app";
+const webDir = normalizePath(path.join(import.meta.dirname, "web"));
+
+/** Link previews for the hosted web app. Meaningless inside the desktop window. */
+function webHead() {
+  return {
+    name: "web-head",
+    transformIndexHtml() {
+      const title = "Yaak in your browser";
+      const description = "No download, no setup. Open a tab and send your first request.";
+      return [
+        { tag: "meta", attrs: { name: "description", content: description } },
+        { tag: "meta", attrs: { property: "og:type", content: "website" } },
+        { tag: "meta", attrs: { property: "og:url", content: webUrl } },
+        { tag: "meta", attrs: { property: "og:title", content: title } },
+        { tag: "meta", attrs: { property: "og:description", content: description } },
+        { tag: "meta", attrs: { property: "og:image", content: `${webUrl}/og.png` } },
+        { tag: "meta", attrs: { property: "og:image:width", content: "1200" } },
+        { tag: "meta", attrs: { property: "og:image:height", content: "630" } },
+        { tag: "meta", attrs: { name: "twitter:card", content: "summary_large_image" } },
+        { tag: "meta", attrs: { name: "twitter:site", content: "@yaakapp" } },
+        { tag: "meta", attrs: { name: "twitter:title", content: title } },
+        { tag: "meta", attrs: { name: "twitter:description", content: description } },
+        { tag: "meta", attrs: { name: "twitter:image", content: `${webUrl}/og.png` } },
+      ];
+    },
+  };
+}
+
+/**
+ * Where `yaak-web` is listening, taken from the same variables that put it there.
+ *
+ * `HOST` is an instruction about what the server accepts rather than an address to
+ * dial, so a wildcard becomes loopback: the dev server and the send server share a
+ * machine.
+ */
+function sendServerUrl(): string {
+  const host = process.env.HOST?.trim();
+  const port = process.env.PORT?.trim() || "9227";
+  const wildcard = !host || host === "0.0.0.0" || host === "::" || host === "[::]";
+  return `http://${wildcard ? "127.0.0.1" : host}:${port}`;
+}
+
+/**
+ * Fails the build when a copied asset is not where the app fetches it from.
+ *
+ * `PdfViewer` and the page head address these by URL, but nothing ties those
+ * URLs to the copy targets below, and a target that mirrors its source path
+ * instead of landing at the root still builds cleanly — the miss only shows up
+ * as a 404 once the app runs.
+ */
+function verifyServedAssets(expected: string[]) {
+  let outDir = "";
+  return {
+    name: "verify-served-assets",
+    apply: "build" as const,
+    configResolved(config: { root: string; build: { outDir: string } }) {
+      outDir = path.resolve(config.root, config.build.outDir);
+    },
+    // After viteStaticCopy, which writes on `writeBundle`.
+    closeBundle() {
+      const missing = expected.filter((asset) => {
+        const full = path.join(outDir, asset);
+        if (!fs.existsSync(full)) return true;
+        const stat = fs.statSync(full);
+        return stat.isDirectory() && fs.readdirSync(full).length === 0;
+      });
+      if (missing.length > 0) {
+        throw new Error(
+          `Copied assets missing from ${outDir}: ${missing.join(", ")}. ` +
+            `Every viteStaticCopy target needs to strip its base path, or it lands ` +
+            `under a copy of the directories it came from instead.`,
+        );
+      }
+    },
+  };
+}
+
 // https://vitejs.dev/config/
 export default defineConfig(async () => {
   return {
@@ -56,14 +140,44 @@ export default defineConfig(async () => {
         generatedRouteTree: "./routeTree.gen.ts",
         autoCodeSplitting: true,
       }),
-      svgr(),
       react(),
       viteStaticCopy({
+        // v4 matches only files and always mirrors the source tree into the
+        // output, so every target here needs stripBase to land where it is
+        // actually served from — without it these end up under a copy of the
+        // path they came from, and nothing fails until the request 404s.
         targets: [
-          { src: cMapsDir, dest: "" },
-          { src: standardFontsDir, dest: "" },
+          { src: `${cMapsDir}/*`, dest: "cmaps", rename: { stripBase: true } },
+          {
+            src: `${standardFontsDir}/*`,
+            dest: "standard_fonts",
+            rename: { stripBase: true },
+          },
+          // `/favicon.ico` is requested by browsers whether or not anything links to it,
+          // so it is served under that name to keep a 404 out of every console.
+          {
+            src: `${iconsDir}/icon.ico`,
+            dest: "",
+            rename: { name: "favicon.ico", stripBase: true },
+          },
+          {
+            src: `${iconsDir}/128x128.png`,
+            dest: "",
+            rename: { name: "icon-128.png", stripBase: true },
+          },
+          ...(yaakTarget === "web"
+            ? [{ src: `${webDir}/og.png`, dest: "", rename: { stripBase: true } }]
+            : []),
         ],
       }),
+      ...(yaakTarget === "web" ? [webHead()] : []),
+      verifyServedAssets([
+        "cmaps",
+        "standard_fonts",
+        "favicon.ico",
+        "icon-128.png",
+        ...(yaakTarget === "web" ? ["og.png"] : []),
+      ]),
     ],
     build: {
       target: "esnext",
@@ -84,8 +198,28 @@ export default defineConfig(async () => {
     },
     clearScreen: false,
     server: {
+      // `HOST` names the interface, as it does most places: unset leaves Vite on
+      // loopback, `0.0.0.0` exposes it for reaching the dev server from another
+      // device.
+      host: process.env.HOST,
+      // Vite refuses a `Host` it does not recognise, which stops a page on a name the
+      // attacker controls from rebinding that name here and driving `/v1` as its own
+      // origin. Addresses are allowed already; only names need listing, so reaching
+      // this as `dev-box.example` means naming it. Deliberately not widened to "any
+      // host when exposed": the proxy below leads to an unauthenticated sender.
+      allowedHosts: process.env.ALLOWED_HOSTS?.split(",")
+        .map((h) => h.trim())
+        .filter(Boolean),
       port: parseInt(process.env.YAAK_CLIENT_DEV_PORT ?? process.env.YAAK_DEV_PORT ?? "1420", 10),
       strictPort: true,
+      // A web dev server is one origin, the way the built app is: `/v1` is passed
+      // through to `yaak-web` rather than the tab being told to call it directly.
+      // That is one address to open instead of two, no CORS in the loop, and a
+      // dev build that sends exactly the way a production build does.
+      proxy:
+        yaakTarget === "web"
+          ? { "/v1": { target: sendServerUrl(), changeOrigin: true } }
+          : undefined,
     },
     envPrefix: ["VITE_", "TAURI_"],
   };

apps/yaak-client/web/og.html

@@ -0,0 +1,129 @@
+<!doctype html>
+<!--
+  Source for og.png (1200x630). Re-render after editing:
+  cd apps/yaak-client/web && "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome" --headless=new --disable-gpu --hide-scrollbars --window-size=1200,630 --force-device-scale-factor=1 --virtual-time-budget=10000 --screenshot=og.png "file://$PWD/og.html"
+-->
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="preconnect" href="https://fonts.googleapis.com" />
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
+    <link
+      href="https://fonts.googleapis.com/css2?family=Inter:wght@500;600;800&family=JetBrains+Mono:wght@400;500&display=block"
+      rel="stylesheet"
+    />
+    <style>
+      * {
+        margin: 0;
+        padding: 0;
+        box-sizing: border-box;
+      }
+      html,
+      body {
+        width: 1200px;
+        height: 630px;
+        overflow: hidden;
+      }
+      body {
+        font-family: Inter, sans-serif;
+        color: hsl(245, 23%, 85%);
+        background:
+          radial-gradient(900px 600px at 0% 100%, hsl(160, 40%, 16%) 0%, transparent 60%),
+          radial-gradient(900px 600px at 100% 0%, hsl(275, 40%, 20%) 0%, transparent 60%),
+          linear-gradient(135deg, hsl(244, 23%, 12%) 0%, hsl(244, 23%, 15%) 100%);
+        -webkit-font-smoothing: antialiased;
+      }
+      .dots {
+        position: absolute;
+        inset: 0;
+        background-image: radial-gradient(hsla(245, 23%, 85%, 0.07) 1.2px, transparent 1.2px);
+        background-size: 28px 28px;
+        mask-image: radial-gradient(ellipse at 50% 40%, black 30%, transparent 75%);
+      }
+      .page {
+        position: relative;
+        height: 100%;
+        padding: 56px 64px;
+        display: flex;
+        flex-direction: column;
+      }
+      .brand {
+        display: flex;
+        align-items: center;
+        gap: 14px;
+        font-weight: 600;
+        font-size: 26px;
+      }
+      .brand img {
+        width: 48px;
+        height: 48px;
+        border-radius: 12px;
+      }
+      h1 {
+        margin-top: 52px;
+        font-size: 84px;
+        line-height: 1.05;
+        font-weight: 800;
+        letter-spacing: -0.03em;
+        color: hsl(245, 23%, 92%);
+      }
+      h1 em {
+        font-style: normal;
+        color: hsl(48, 80%, 63%);
+      }
+      p {
+        margin-top: 28px;
+        font-size: 34px;
+        line-height: 1.4;
+        font-weight: 500;
+        color: hsl(245, 18%, 68%);
+        max-width: 1040px;
+      }
+      .bar {
+        margin-top: auto;
+        display: flex;
+        align-items: center;
+        gap: 22px;
+        height: 72px;
+        padding: 0 28px;
+        border-radius: 12px;
+        background: hsla(244, 23%, 22%, 0.6);
+        border: 1px solid hsl(244, 23%, 28%);
+        font-family: "JetBrains Mono", monospace;
+        font-size: 28px;
+        box-shadow: 0 10px 40px hsla(244, 40%, 5%, 0.4);
+      }
+      .method {
+        color: hsl(245, 18%, 62%);
+        font-weight: 500;
+      }
+      .url .scheme {
+        color: hsl(245, 18%, 55%);
+      }
+      .url .host {
+        color: hsl(245, 23%, 92%);
+      }
+      .status {
+        margin-left: auto;
+        color: hsl(150, 99%, 44%);
+        font-weight: 500;
+      }
+    </style>
+  </head>
+  <body>
+    <div class="dots"></div>
+    <div class="page">
+      <div class="brand">
+        <img src="../../../crates-tauri/yaak-app-client/icons/release/128x128@2x.png" alt="" />
+        <span>Yaak</span>
+      </div>
+      <h1>Your favorite API client<br /><em>in your browser</em></h1>
+      <p>No download, no setup. Open a tab and send your first request.</p>
+      <div class="bar">
+        <span class="method">GET</span>
+        <span class="url"><span class="scheme">https://</span><span class="host">web.yaak.app</span></span>
+        <span class="status">200 OK</span>
+      </div>
+    </div>
+  </body>
+</html>