Read OAuth 2.0 token responses from the send instead of the filesystem

Both token requests opened HttpResponse.bodyPath with readFileSync, which ties the plugin to bodies living on a filesystem. The send now hands the body back, so they read it from there and keep working once bodies move into the blob DB and in the browser Worker, where there is no fs to read. text() on a response with no body returns "", which is what the bodyPath check produced, so an empty response still parses to {} rather than throwing.
Hand the body back from send instead of holding it for a lookup
2026-08-17 00:52:09 +02:00 · 2026-08-16 10:09:43 -07:00 · 2026-08-16 10:07:44 -07:00 · 2026-08-16 10:00:35 -07:00 · 2026-08-16 09:54:56 -07:00 · 2026-08-16 09:35:03 -07:00
123 changed files with 7007 additions and 1808 deletions
@@ -2,6 +2,18 @@
 # It is not intended for manual editing.
 version = 4

+[[package]]
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+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc86a613208ca7d144ca24f6ec49c5cdfa5c05a46f2f7ab5880ff99371f165de"
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+ "macroific 3.0.1",
+ "proc-macro2",
+ "quote",
+ "syn 3.0.3",
+]
+
 [[package]]
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@@ -40,18 +52,6 @@ dependencies = [
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-[[package]]
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- "once_cell",
- "version_check",
- "zerocopy",
-]
-
 [[package]]
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@@ -1066,10 +1066,11 @@ dependencies = [

 [[package]]
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-version = "1.2.26"
+version = "1.4.3"
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 dependencies = [
+ "find-msvc-tools",
 "jobserver",
 "libc",
 "shlex",
@@ -1386,6 +1387,16 @@ dependencies = [
 "windows-sys 0.61.2",
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+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "cfg-if",
+ "wasm-bindgen",
+]
+
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 checksum = "da692b8d1080ea3045efaab14434d40468c3d8657e42abddfffca87b428f4c1b"

+[[package]]
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+dependencies = [
+ "impartial-ord",
+ "itoa",
+ "macroific 3.0.1",
+ "proc-macro2",
+ "quote",
+ "syn 3.0.3",
+]
+
 [[package]]
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@@ -2361,6 +2386,18 @@ dependencies = [
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+[[package]]
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+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a8211ab12c36b63c269e17873331dc1da196a3edb7a5c79015677ef972da34a"
+dependencies = [
+ "macroific 3.0.1",
+ "proc-macro2",
+ "quote",
+ "syn 3.0.3",
+]
+
 [[package]]
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@@ -2417,6 +2454,12 @@ dependencies = [
 "windows-sys 0.59.0",
 ]

+[[package]]
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+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d45db016d36b838f563236e9193d0ee6ce38f3f68b6c94e914b4929c96bbb890"
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@@ -2849,8 +2892,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "335ff9f135e4384c8150d6f27c6daed433577f86b4750418338c01a1a2528592"
 dependencies = [
 "cfg-if",
+ "js-sys",
 "libc",
 "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasm-bindgen",
 ]

 [[package]]
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 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 dependencies = [
- "ahash 0.7.8",
+ "ahash",
 ]

 [[package]]
@@ -3099,9 +3144,6 @@ name = "hashbrown"
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- "ahash 0.8.12",
-]

 [[package]]
 name = "hashbrown"
@@ -3131,11 +3173,11 @@ checksum = "ed5909b6e89a2db4456e54cd5f673791d7eca6732202bbf2a9cc504fe2f9b84a"

 [[package]]
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-version = "0.9.1"
+version = "0.11.1"
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-checksum = "6ba4ff7128dee98c7dc9794b6a411377e1404dba1c97deb8d1a55297bd25d8af"
+checksum = "824e001ac4f3012dd16a264bec811403a67ca9deb6c102fc5049b32c4574b35f"
 dependencies = [
- "hashbrown 0.14.5",
+ "hashbrown 0.16.1",
 ]

 [[package]]
@@ -3497,6 +3539,17 @@ dependencies = [
 "tiff",
 ]

+[[package]]
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+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 3.0.3",
+]
+
 [[package]]
 name = "include_dir"
 version = "0.7.4"
@@ -3516,6 +3569,40 @@ dependencies = [
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+[[package]]
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+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69ff41758cbd104e91033bb53bc449bec7eea65652960c81eddf3fc146ecea19"
+dependencies = [
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+ "cfg-if",
+ "delegate-display",
+ "derive_more 2.1.1",
+ "fancy_constructor",
+ "indexed_db_futures_macros_internal",
+ "js-sys",
+ "sealed 0.6.0",
+ "smallvec",
+ "thiserror 2.0.17",
+ "tokio",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+]
+
+[[package]]
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+dependencies = [
+ "macroific 2.0.0",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.101",
+]
+
 [[package]]
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@@ -3561,17 +3648,6 @@ dependencies = [
 "cfb",
 ]

-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "proc-macro2",
- "quote",
- "syn 2.0.101",
-]
-
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@@ -4007,9 +4083,9 @@ dependencies = [

 [[package]]
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+checksum = "95b4103cffefa72eb8428cb6b47d6627161e51c2739fc5e3b734584157bc642a"
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@@ -4109,6 +4185,102 @@ version = "0.1.1"
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 checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"

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+ "macroific_core 2.0.0",
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+ "macroific_core 3.0.1",
+ "macroific_macro 3.0.1",
+]
+
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+dependencies = [
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+ "syn 2.0.101",
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+ "syn 2.0.101",
+]
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+ "syn 3.0.3",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "macroific_attr_parse 2.0.0",
+ "macroific_core 2.0.0",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.101",
+]
+
+[[package]]
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+version = "3.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e30d63cb102648965753f0d47a6ab171b1cbb1fb5c363f4784ea986782fc7b77"
+dependencies = [
+ "macroific_attr_parse 3.0.1",
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+ "proc-macro2",
+ "quote",
+ "syn 3.0.3",
+]
+
 [[package]]
 name = "malloc_buf"
 version = "0.0.6"
@@ -6242,9 +6414,9 @@ dependencies = [

 [[package]]
 name = "r2d2_sqlite"
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+version = "0.32.0"
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+checksum = "a2ebd03c29250cdf191da93a35118b4567c2ef0eacab54f65e058d6f4c9965f6"
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 "rusqlite",
@@ -7130,10 +7302,20 @@ dependencies = [
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 [[package]]
-name = "rusqlite"
-version = "0.32.1"
+name = "rsqlite-vfs"
+version = "0.1.1"
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+checksum = "c51c9ae4df8a7fba42103df5c621fa3c37eccf3a3c650879e90fc48b11cc192c"
+dependencies = [
+ "hashbrown 0.16.1",
+ "thiserror 2.0.17",
+]
+
+[[package]]
+name = "rusqlite"
+version = "0.38.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1c93dd1c9683b438c392c492109cb702b8090b2bfc8fed6f6e4eb4523f17af3"
 dependencies = [
 "bitflags 2.11.0",
 "chrono",
@@ -7142,6 +7324,7 @@ dependencies = [
 "hashlink",
 "libsqlite3-sys",
 "smallvec",
+ "sqlite-wasm-rs",
 ]

 [[package]]
@@ -7423,20 +7606,20 @@ checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"

 [[package]]
 name = "sea-query"
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+version = "1.0.2"
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-checksum = "64c91783d1514b99754fc6a4079081dcc2c587dadbff65c48c7f62297443536a"
+checksum = "546040c653a705e60ec65ecd3191a809603734bebbc225775916dea9ae409b31"
 dependencies = [
 "chrono",
- "inherent",
+ "itoa",
 "sea-query-derive",
 ]

 [[package]]
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-version = "0.4.3"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
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 dependencies = [
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@@ -7448,9 +7631,9 @@ dependencies = [

 [[package]]
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+version = "0.8.0"
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 dependencies = [
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@@ -7462,6 +7645,28 @@ version = "4.1.0"
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+[[package]]
+name = "sealed"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.101",
+]
+
+[[package]]
+name = "sealed"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b68e2ea526d9fb32f23ca8894fb5da9e743f34c2f41701f0501dc8a25c4b343"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 3.0.3",
+]
+
 [[package]]
 name = "security-framework"
 version = "2.11.1"
@@ -7861,9 +8066,9 @@ dependencies = [

 [[package]]
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-version = "1.3.0"
+version = "2.0.1"
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+checksum = "f8fadd59c855ef2080decdef8ff161eb6661b86933c9d82e5ba29dc602a55aba"

 [[package]]
 name = "signal-hook"
@@ -8031,6 +8236,34 @@ dependencies = [
 "system-deps",
 ]

+[[package]]
+name = "sqlite-wasm-rs"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc3efc0da82635d7e1ced0053bbbfa8c7ab9645d0bf36ceb4f7127bb85315d75"
+dependencies = [
+ "cc",
+ "js-sys",
+ "rsqlite-vfs",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "sqlite-wasm-vfs"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f7a5c9ac229421d577bb5a9bb59048838509958b218dd4e0b3c1214a87c361e"
+dependencies = [
+ "indexed_db_futures",
+ "js-sys",
+ "rsqlite-vfs",
+ "thiserror 2.0.17",
+ "tokio",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+]
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.0"
@@ -8165,6 +8398,17 @@ dependencies = [
 "unicode-ident",
 ]

+[[package]]
+name = "syn"
+version = "3.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53e9bae58849f64dfa4f5d5ae372c8341f7305f82a3868709269343628b659a3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "sync_wrapper"
 version = "1.0.2"
@@ -10952,6 +11196,7 @@ name = "yaak"
 version = "0.1.0"
 dependencies = [
 "async-trait",
+ "base64 0.22.1",
 "log 0.4.29",
 "md5 0.8.0",
 "serde_json",
@@ -11023,6 +11268,7 @@ dependencies = [
 "uuid",
 "yaak",
 "yaak-api",
+ "yaak-commands",
 "yaak-common",
 "yaak-core",
 "yaak-crypto",
@@ -11035,6 +11281,7 @@ dependencies = [
 "yaak-models",
 "yaak-plugins",
 "yaak-rpc",
+ "yaak-rpc-schema",
 "yaak-sse",
 "yaak-sync",
 "yaak-system-appearance",
@@ -11101,6 +11348,24 @@ dependencies = [
 "zip",
 ]

+[[package]]
+name = "yaak-commands"
+version = "0.0.0"
+dependencies = [
+ "log 0.4.29",
+ "serde_json",
+ "tempfile",
+ "thiserror 2.0.17",
+ "tokio",
+ "yaak",
+ "yaak-core",
+ "yaak-crypto",
+ "yaak-models",
+ "yaak-plugins",
+ "yaak-rpc-schema",
+ "yaak-templates",
+]
+
 [[package]]
 name = "yaak-common"
 version = "0.1.0"
@@ -11135,6 +11400,7 @@ name = "yaak-database"
 version = "0.1.0"
 dependencies = [
 "chrono",
+ "getrandom 0.2.16",
 "include_dir",
 "log 0.4.29",
 "nanoid",
@@ -11147,6 +11413,7 @@ dependencies = [
 "serde_json",
 "thiserror 2.0.17",
 "ts-rs",
+ "uuid",
 ]

 [[package]]
@@ -11372,6 +11639,22 @@ dependencies = [
 "ts-rs",
 ]

+[[package]]
+name = "yaak-rpc-schema"
+version = "0.0.0"
+dependencies = [
+ "serde",
+ "ts-rs",
+ "yaak-git",
+ "yaak-grpc",
+ "yaak-models",
+ "yaak-plugins",
+ "yaak-sse",
+ "yaak-sync",
+ "yaak-templates",
+ "yaak-ws",
+]
+
 [[package]]
 name = "yaak-sse"
 version = "0.1.0"
@@ -11414,6 +11697,7 @@ version = "0.1.0"
 dependencies = [
 "regex 1.11.1",
 "tauri",
+ "yaak-core",
 ]

 [[package]]
@@ -11437,6 +11721,7 @@ version = "0.1.0"
 dependencies = [
 "log 0.4.29",
 "p12",
+ "pem",
 "rustls",
 "rustls-pemfile",
 "rustls-platform-verifier",
@@ -11447,6 +11732,23 @@ dependencies = [
 "yasna",
 ]

+[[package]]
+name = "yaak-web"
+version = "0.1.0"
+dependencies = [
+ "console_error_panic_hook",
+ "js-sys",
+ "log 0.4.29",
+ "serde",
+ "serde-wasm-bindgen",
+ "serde_json",
+ "sqlite-wasm-rs",
+ "sqlite-wasm-vfs",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "yaak-models",
+]
+
 [[package]]
 name = "yaak-window"
 version = "0.1.0"
@@ -2,9 +2,11 @@
 resolver = "2"
 members = [
  "crates/yaak",
+  "crates/yaak-commands",
  # Common/foundation crates
  "crates/common/yaak-database",
  "crates/common/yaak-rpc",
+  "crates/common/yaak-rpc-schema",
  # Shared crates (no Tauri dependency)
  "crates/yaak-core",
  "crates/yaak-common",
@@ -19,6 +21,7 @@ members = [
  "crates/yaak-templates",
  "crates/yaak-tls",
  "crates/yaak-ws",
+  "crates/yaak-web",
  "crates/yaak-api",
  "crates/yaak-proxy",
  # Proxy-specific crates
@@ -63,10 +66,12 @@ ts-rs = "11.1.0"
 # Internal crates - common/foundation
 yaak-database = { path = "crates/common/yaak-database" }
 yaak-rpc = { path = "crates/common/yaak-rpc" }
+yaak-rpc-schema = { path = "crates/common/yaak-rpc-schema" }

 # Internal crates - shared
 yaak-core = { path = "crates/yaak-core" }
 yaak = { path = "crates/yaak" }
+yaak-commands = { path = "crates/yaak-commands" }
 yaak-common = { path = "crates/yaak-common" }
 yaak-crypto = { path = "crates/yaak-crypto" }
 yaak-git = { path = "crates/yaak-git" }
@@ -44,6 +44,25 @@ After bootstrapping, start the app in development mode:
 npm start
 ```

+## Run the App in a Browser
+
+The client can also run as a plain web page, with no Tauri and no local process
+behind it. Set `YAAK_TARGET=web` and start the frontend on its own:
+
+```shell
+YAAK_TARGET=web npm run dev --workspace @yaakapp/yaak-client
+```
+
+That flag picks the browser host in `packages/platform/src/web/`, which answers
+commands from an IndexedDB database the page owns instead of from the Rust
+engine. Data persists across reloads and is shared between tabs on the same
+origin. Sending HTTP is not available yet — the Send button reports that and
+everything else about the request is still saved. `packages/platform/src/web/README.md`
+lists which commands the browser host implements and which it declines.
+
+Desktop builds are unaffected: without the flag the platform package installs
+the Tauri host exactly as before.
+
 ## SQLite Migrations

 New migrations can be created from the `src-tauri/` directory:
@@ -1,3 +1,4 @@
+import { platform } from "@yaakapp-internal/platform";
 import type { SettingsTab } from "../components/Settings/Settings";
 import { activeWorkspaceIdAtom } from "../hooks/useActiveWorkspace";
 import { createFastMutation } from "../hooks/useFastMutation";
@@ -14,11 +15,19 @@ export const openSettings = createFastMutation<void, string, SettingsTabWithSubt
    const workspaceId = jotaiStore.get(activeWorkspaceIdAtom);
    if (workspaceId == null) return;

-    const location = router.buildLocation({
-      to: "/workspaces/$workspaceId/settings",
-      params: { workspaceId },
-      search: { tab: (tab ?? undefined) as SettingsTab | undefined },
-    });
+    const to = "/workspaces/$workspaceId/settings" as const;
+    const params = { workspaceId };
+    const search = { tab: (tab ?? undefined) as SettingsTab | undefined };
+
+    // Settings is its own window where the host has windows to give. Where it
+    // doesn't — a browser tab — the same route opens in place, which is the
+    // whole difference: it is already a route, not a separate app.
+    if (!platform.capabilities.multiWindow) {
+      await router.navigate({ to, params, search });
+      return;
+    }
+
+    const location = router.buildLocation({ to, params, search });

    await rpc("cmd_new_child_window", {
      url: location.href,
@@ -1,3 +1,4 @@
+import { platform } from "@yaakapp-internal/platform";
 import { createFastMutation } from "../hooks/useFastMutation";
 import { getRecentCookieJars } from "../hooks/useRecentCookieJars";
 import { getRecentEnvironments } from "../hooks/useRecentEnvironments";
@@ -24,7 +25,9 @@ export const switchWorkspace = createFastMutation<
      request_id: requestId,
    };

-    if (inNewWindow) {
+    // A host without windows opens the workspace here instead. Refusing would
+    // strand the user on the workspace they were trying to leave.
+    if (inNewWindow && platform.capabilities.multiWindow) {
      const location = router.buildLocation({
        to: "/workspaces/$workspaceId",
        params: { workspaceId },
@@ -1,6 +1,6 @@
 import type { RpcPayload } from "@yaakapp-internal/platform";
 import { platform } from "@yaakapp-internal/platform";
-import type { RpcSchema } from "@yaakapp-internal/tauri-client";
+import type { RpcSchema } from "@yaakapp-internal/rpc-schema";

 /**
 * Every backend command the app can call: the generated wire schema, one field
@@ -1,5 +1,5 @@
 import type { HttpRequest } from "@yaakapp-internal/models";
-import type { EphemeralHttpResponse } from "@yaakapp-internal/tauri-client";
+import type { EphemeralHttpResponse } from "@yaakapp-internal/rpc-schema";
 import { getActiveCookieJar } from "../hooks/useActiveCookieJar";
 import { rpc } from "./rpc";

@@ -17,9 +17,37 @@ const standardFontsDir = normalizePath(
  path.join(path.dirname(require.resolve("pdfjs-dist/package.json")), "standard_fonts"),
 );

+/**
+ * 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
+ * else builds the desktop app exactly as before.
+ */
+const yaakTarget = process.env.YAAK_TARGET === "web" ? "web" : "desktop";
+
 // https://vitejs.dev/config/
 export default defineConfig(async () => {
  return {
+    resolve: {
+      alias:
+        yaakTarget === "web"
+          ? {
+              // Resolve the platform package to its browser entry, so a web
+              // build never pulls `@tauri-apps/*` into the graph at all. A
+              // build-time branch inside the package would not manage that:
+              // the dead branch folds away, but the imports it guarded stay.
+              "@yaakapp-internal/platform": path.resolve(
+                import.meta.dirname,
+                "../../packages/platform/src/index.web.ts",
+              ),
+            }
+          : {},
+    },
+    // The browser host runs the model layer in a worker; that bundle needs the
+    // same wasm and top-level-await handling as the main one.
+    worker: {
+      format: "es" as const,
+      plugins: () => [wasm(), topLevelAwait()],
+    },
    plugins: [
      wasm(),
      tanstackRouter({
@@ -1,5 +1,7 @@
 use crate::context::CliExecutionContext;
 use arboard::Clipboard;
+use base64::Engine;
+use base64::prelude::BASE64_STANDARD;
 use console::Term;
 use inquire::{Confirm, Editor, Password, PasswordDisplayMode, Select, Text};
 use serde_json::Value;
@@ -12,6 +14,7 @@ use yaak::plugin_events::{
    GroupedPluginEvent, HostRequest, SharedPluginEventContext, handle_shared_plugin_event,
 };
 use yaak::render::{render_grpc_request, render_http_request};
+use yaak::response_body::FileResponseBodyStore;
 use yaak::send::{SendHttpRequestWithPluginsParams, send_http_request_with_plugins};
 use yaak_crypto::manager::EncryptionManager;
 use yaak_http::cookies::get_cookie_value_from_jar;
@@ -131,6 +134,7 @@ async fn build_plugin_reply(

    match handle_shared_plugin_event(
        &host_context.query_manager,
+        &FileResponseBodyStore::new(&host_context.query_manager),
        &event.payload,
        SharedPluginEventContext { plugin_name, workspace_id: shared_workspace_id },
    ) {
@@ -223,7 +227,15 @@ async fn build_plugin_reply(
                .await
                {
                    Ok(result) => Some(InternalEventPayload::SendHttpRequestResponse(
-                        SendHttpRequestResponse { http_response: result.response },
+                        SendHttpRequestResponse {
+                            http_response: result.response,
+                            // Nothing saved this body, so the reply is the only
+                            // place the plugin can get it.
+                            body: result
+                                .response_body
+                                .returned_bytes()
+                                .map(|b| BASE64_STANDARD.encode(b)),
+                        },
                    )),
                    Err(err) => Some(InternalEventPayload::ErrorResponse(ErrorResponse {
                        error: format!("Failed to send HTTP request in CLI: {err}"),
@@ -10,9 +10,9 @@ chrono = { workspace = true, features = ["serde"] }
 log = { workspace = true }
 include_dir = "0.7"
 r2d2 = "0.8.10"
-r2d2_sqlite = "0.25.0"
-rusqlite = { version = "0.32.1", features = ["bundled", "chrono"] }
-sea-query = { version = "0.32.1", features = ["with-chrono", "attr"] }
+r2d2_sqlite = "0.32"
+rusqlite = { version = "0.38", features = ["bundled", "chrono"] }
+sea-query = { version = "1.0", features = ["with-chrono", "attr"] }
 serde = { workspace = true, features = ["derive"] }
 serde_json = { workspace = true }
 ts-rs = { workspace = true, features = ["chrono-impl"] }
@@ -39,7 +39,7 @@ md5 = "0.8.0"
 notify = "8.0.0"
 pretty_graphql = "0.2"
 r2d2 = "0.8.10"
-r2d2_sqlite = "0.25.0"
+r2d2_sqlite = "0.32"
 mime_guess = "2.0.5"
 rand = "0.9.0"
 reqwest = { workspace = true, features = [
@@ -73,12 +73,14 @@ url = "2"
 tokio-util = { version = "0.7", features = ["codec"] }
 ts-rs = { workspace = true }
 yaak-rpc = { workspace = true }
+yaak-rpc-schema = { workspace = true }
 uuid = "1.12.1"
 yaak-api = { workspace = true }
 yaak-common = { workspace = true }
 yaak-tauri-utils = { workspace = true }
 yaak-core = { workspace = true }
 yaak = { workspace = true }
+yaak-commands = { workspace = true }
 yaak-crypto = { workspace = true }
 yaak-fonts = { workspace = true }
 yaak-git = { workspace = true }
@@ -1,7 +1,5 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.

-export type GitWatchResult = { unlistenEvent: string, };
-
 export type PluginUpdateInfo = { name: string, currentVersion: string, latestVersion: string, };

 export type PluginUpdateNotification = { updateCount: number, plugins: Array<PluginUpdateInfo>, };
@@ -12,8 +10,6 @@ export type UpdateResponse = { "type": "ack" } | { "type": "action", action: Upd

 export type UpdateResponseAction = "install" | "skip";

-export type WatchResult = { unlistenEvent: string, };
-
 export type YaakNotification = { timestamp: string, timeout: number | null, id: string, title: string | null, message: string, color: string | null, action: YaakNotificationAction | null, };

 export type YaakNotificationAction = { label: string, url: string, };
@@ -1,4 +1,4 @@
-// ts-rs owns bindings/index.ts and rewrites it on export, so this hand-written
-// entry point is where the generated files come together.
-export * from "./bindings/gen_rpc";
+// ts-rs owns bindings/index.ts and rewrites it on export. What remains here
+// after the RPC schema moved to @yaakapp-internal/rpc-schema is the
+// desktop-only surface: updater and notification types.
 export * from "./bindings/index";
@@ -1,51 +1,8 @@
 use crate::PluginContextExt;
 use crate::error::Result;
-use std::sync::Arc;
-use tauri::{AppHandle, Manager, Runtime, State, WebviewWindow};
-use yaak_crypto::manager::EncryptionManager;
-use yaak_models::models::HttpRequestHeader;
-use yaak_models::queries::workspaces::default_headers;
+use tauri::{Runtime, State, WebviewWindow};
 use yaak_plugins::events::GetThemesResponse;
 use yaak_plugins::manager::PluginManager;
-use yaak_plugins::native_template_functions::{
-    decrypt_secure_template_function, encrypt_secure_template_function,
-};
-
-/// Extension trait for accessing the EncryptionManager from Tauri Manager types.
-pub trait EncryptionManagerExt<'a, R> {
-    fn crypto(&'a self) -> State<'a, EncryptionManager>;
-}
-
-impl<'a, R: Runtime, M: Manager<R>> EncryptionManagerExt<'a, R> for M {
-    fn crypto(&'a self) -> State<'a, EncryptionManager> {
-        self.state::<EncryptionManager>()
-    }
-}
-
-pub(crate) async fn cmd_decrypt_template<R: Runtime>(
-    window: WebviewWindow<R>,
-    template: &str,
-) -> Result<String> {
-    let encryption_manager = window.app_handle().state::<EncryptionManager>();
-    let plugin_context = window.plugin_context();
-    Ok(decrypt_secure_template_function(&encryption_manager, &plugin_context, template)?)
-}
-
-pub(crate) async fn cmd_secure_template<R: Runtime>(
-    app_handle: AppHandle<R>,
-    window: WebviewWindow<R>,
-    template: &str,
-) -> Result<String> {
-    let plugin_manager = Arc::new((*app_handle.state::<PluginManager>()).clone());
-    let encryption_manager = Arc::new((*app_handle.state::<EncryptionManager>()).clone());
-    let plugin_context = window.plugin_context();
-    Ok(encrypt_secure_template_function(
-        plugin_manager,
-        encryption_manager,
-        &plugin_context,
-        template,
-    )?)
-}

 pub(crate) async fn cmd_get_themes<R: Runtime>(
    window: WebviewWindow<R>,
@@ -53,40 +10,3 @@ pub(crate) async fn cmd_get_themes<R: Runtime>(
 ) -> Result<Vec<GetThemesResponse>> {
    Ok(plugin_manager.get_themes(&window.plugin_context()).await?)
 }
-
-pub(crate) async fn cmd_enable_encryption<R: Runtime>(
-    window: WebviewWindow<R>,
-    workspace_id: &str,
-) -> Result<()> {
-    window.crypto().ensure_workspace_key(workspace_id)?;
-    window.crypto().reveal_workspace_key(workspace_id)?;
-    Ok(())
-}
-
-pub(crate) async fn cmd_reveal_workspace_key<R: Runtime>(
-    window: WebviewWindow<R>,
-    workspace_id: &str,
-) -> Result<String> {
-    Ok(window.crypto().reveal_workspace_key(workspace_id)?)
-}
-
-pub(crate) async fn cmd_set_workspace_key<R: Runtime>(
-    window: WebviewWindow<R>,
-    workspace_id: &str,
-    key: &str,
-) -> Result<()> {
-    window.crypto().set_human_key(workspace_id, key)?;
-    Ok(())
-}
-
-pub(crate) async fn cmd_disable_encryption<R: Runtime>(
-    window: WebviewWindow<R>,
-    workspace_id: &str,
-) -> Result<()> {
-    window.crypto().disable_encryption(workspace_id)?;
-    Ok(())
-}
-
-pub(crate) fn cmd_default_headers() -> Vec<HttpRequestHeader> {
-    default_headers()
-}
@@ -41,6 +41,9 @@ pub enum Error {
    #[error(transparent)]
    YaakError(#[from] yaak::Error),

+    #[error(transparent)]
+    CommandError(#[from] yaak_commands::Error),
+
    #[error(transparent)]
    ClipboardError(#[from] tauri_plugin_clipboard_manager::Error),

@@ -2,7 +2,6 @@ use crate::error::{Error, Result};
 use chrono::Utc;
 use log::{debug, error, warn};
 use notify::Watcher;
-use serde::{Deserialize, Serialize};
 use std::path::Path;
 use std::sync::mpsc;
 use std::time::Duration;
@@ -10,18 +9,11 @@ use tauri::{AppHandle, Listener, Runtime};
 use tokio::select;
 use tokio::sync::watch;
 use tokio::time::sleep;
-use ts_rs::TS;
 use yaak_git::{GitWorktreeStatus, git_path_is_ignored, git_repository_paths, git_worktree_status};
+use yaak_rpc_schema::GitWatchResult;

 const GIT_STATUS_COALESCE_WINDOW: Duration = Duration::from_millis(250);

-#[derive(Debug, Clone, Serialize, Deserialize, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export, export_to = "index.ts")]
-pub(crate) struct GitWatchResult {
-    unlisten_event: String,
-}
-
 pub(crate) async fn watch_git_worktree_status<R, F>(
    app_handle: AppHandle<R>,
    dir: &Path,
@@ -8,14 +8,13 @@ use crate::import::{import_data, import_url};
 use crate::models_ext::{BlobManagerExt, QueryManagerExt};
 use crate::notifications::YaakNotifier;
 use crate::render::{render_grpc_request, render_json_value, render_template};
-use crate::rpc_ext::EphemeralHttpResponse;
 use crate::updates::{UpdateMode, UpdateTrigger, YaakUpdater};
 use crate::uri_scheme::handle_deep_link;
 use error::Result as YaakResult;
 use eventsource_client::{EventParser, SSE};
 use log::{debug, error, info, warn};
 use std::collections::HashMap;
-use std::path::{Path, PathBuf};
+use std::path::PathBuf;
 use std::str::FromStr;
 use std::sync::Arc;
 use std::time::Duration;
@@ -30,8 +29,8 @@ use tauri_plugin_log::{Builder, Target, TargetKind, log};
 use tokio::sync::Mutex;
 use tokio::task::block_in_place;
 use tokio::time;
-use yaak::export::{self, ExportDataParams};
 use yaak::send::ResponseBody;
+use yaak_commands::responses::locate_response_body;
 use yaak_common::command::new_checked_command;
 use yaak_crypto::manager::EncryptionManager;
 use yaak_grpc::manager::{GrpcConfig, GrpcHandle};
@@ -39,8 +38,7 @@ use yaak_grpc::{Code, ServiceDefinition};
 use yaak_mac_window::AppHandleMacWindowExt;
 use yaak_models::models::{
    AnyModel, CookieJar, Environment, GrpcConnection, GrpcConnectionState, GrpcEvent,
-    GrpcEventType, HttpRequest, HttpResponse, HttpResponseEvent, HttpResponseState, Workspace,
-    WorkspaceMeta,
+    GrpcEventType, HttpRequest, HttpResponse, HttpResponseState, Workspace,
 };
 use yaak_models::util::{BatchUpsertResult, UpdateSource};
 use yaak_plugins::events::{
@@ -55,11 +53,10 @@ use yaak_plugins::events::{
    InternalEventPayload, JsonPrimitive, PluginContext, RenderPurpose, ShowToastRequest,
 };
 use yaak_plugins::manager::PluginManager;
-use yaak_plugins::plugin_meta::{PluginMetadata, get_plugin_meta};
 use yaak_plugins::template_callback::PluginTemplateCallback;
+use yaak_rpc_schema::{AppMetaData, EphemeralHttpResponse};
 use yaak_sse::sse::ServerSentEvent;
 use yaak_tauri_utils::window::WorkspaceWindowTrait;
-use yaak_templates::format_json::format_json;
 use yaak_templates::strip_json_comments::strip_json_comments;
 use yaak_templates::{RenderErrorBehavior, RenderOptions, Tokens, transform_args};
 use yaak_tls::find_client_certificate;
@@ -184,22 +181,6 @@ impl<R: Runtime> PluginContextExt<R> for WebviewWindow<R> {
    }
 }

-#[derive(serde::Serialize, ts_rs::TS)]
-#[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to = "gen_rpc.ts")]
-pub struct AppMetaData {
-    is_dev: bool,
-    version: String,
-    cli_version: Option<String>,
-    name: String,
-    app_data_dir: String,
-    app_log_dir: String,
-    vendored_plugin_dir: String,
-    default_project_dir: String,
-    feature_updater: bool,
-    feature_license: bool,
-}
-
 async fn cmd_metadata<R: Runtime>(app_handle: AppHandle<R>) -> YaakResult<AppMetaData> {
    let app_data_dir = app_handle.path().app_data_dir()?;
    let app_log_dir = app_handle.path().app_log_dir()?;
@@ -1027,10 +1008,6 @@ async fn cmd_send_ephemeral_request<R: Runtime>(
    Ok(EphemeralHttpResponse { response: sent.response, body })
 }

-async fn cmd_format_json(text: &str) -> YaakResult<String> {
-    Ok(format_json(text, "  "))
-}
-
 async fn cmd_format_graphql(text: &str) -> YaakResult<String> {
    match pretty_graphql::format_text(text, &Default::default()) {
        Ok(formatted) => Ok(formatted),
@@ -1038,44 +1015,13 @@ async fn cmd_format_graphql(text: &str) -> YaakResult<String> {
    }
 }

-/// Where a response's body is, and what it is meant to be read as.
-struct ResponseBodyLocation {
-    /// None when the response has no stored body.
-    path: Option<PathBuf>,
-    /// The response's declared `Content-Type`, empty when it has none.
-    content_type: String,
-}
-
-/// Find a response's body from its id alone.
-///
-/// The frontend hands back an id and never a path, so the only bodies reachable
-/// here are ones the engine wrote and the database still knows about. A
-/// response that was never saved has no entry, and its body came back from the
-/// send that made it.
-fn locate_response_body<R: Runtime>(
-    app_handle: &AppHandle<R>,
-    response_id: &str,
-) -> YaakResult<ResponseBodyLocation> {
-    let response = app_handle.db().get_http_response(response_id)?;
-
-    Ok(ResponseBodyLocation {
-        path: response.body_path.map(PathBuf::from),
-        content_type: response
-            .headers
-            .iter()
-            .find(|h| h.name.eq_ignore_ascii_case("content-type"))
-            .map(|h| h.value.clone())
-            .unwrap_or_default(),
-    })
-}
-
 async fn cmd_http_response_body<R: Runtime>(
    window: WebviewWindow<R>,
    plugin_manager: State<'_, PluginManager>,
    response_id: &str,
    filter: Option<&str>,
 ) -> YaakResult<FilterResponse> {
-    let location = locate_response_body(window.app_handle(), response_id)?;
+    let location = locate_response_body(&window.db(), response_id)?;
    let Some(body_path) = location.path else {
        return Ok(FilterResponse { content: String::new(), error: None });
    };
@@ -1093,41 +1039,11 @@ async fn cmd_http_response_body<R: Runtime>(
    }
 }

-/// The body's path on this machine, for the desktop host to read or hand to the
-/// webview's asset protocol.
-///
-/// The frontend holds response ids; only `packages/platform`'s Tauri host sees
-/// the path, and only because it is about to open the file itself. Hosts
-/// without a filesystem serve the same bytes over HTTP instead.
-async fn cmd_http_response_body_path<R: Runtime>(
-    app_handle: AppHandle<R>,
-    response_id: &str,
-) -> YaakResult<Option<String>> {
-    let location = locate_response_body(&app_handle, response_id)?;
-    Ok(location.path.map(|p| p.to_string_lossy().to_string()))
-}
-
-async fn cmd_http_request_body<R: Runtime>(
-    app_handle: AppHandle<R>,
-    response_id: &str,
-) -> YaakResult<Option<Vec<u8>>> {
-    let body_id = format!("{}.request", response_id);
-    let chunks = app_handle.blobs().get_chunks(&body_id)?;
-
-    if chunks.is_empty() {
-        return Ok(None);
-    }
-
-    // Concatenate all chunks
-    let body: Vec<u8> = chunks.into_iter().flat_map(|c| c.data).collect();
-    Ok(Some(body))
-}
-
 async fn cmd_get_sse_events<R: Runtime>(
    app_handle: AppHandle<R>,
    response_id: &str,
 ) -> YaakResult<Vec<ServerSentEvent>> {
-    let Some(body_path) = locate_response_body(&app_handle, response_id)?.path else {
+    let Some(body_path) = locate_response_body(&app_handle.db(), response_id)?.path else {
        return Ok(Vec::new());
    };

@@ -1150,14 +1066,6 @@ async fn cmd_get_sse_events<R: Runtime>(
    Ok(events)
 }

-async fn cmd_get_http_response_events<R: Runtime>(
-    app_handle: AppHandle<R>,
-    response_id: &str,
-) -> YaakResult<Vec<HttpResponseEvent>> {
-    let events: Vec<HttpResponseEvent> = app_handle.db().list_http_response_events(response_id)?;
-    Ok(events)
-}
-
 async fn cmd_import_data<R: Runtime>(
    window: WebviewWindow<R>,
    file_path: &str,
@@ -1450,22 +1358,6 @@ async fn cmd_curl_to_request<R: Runtime>(
        })?)
 }

-async fn cmd_export_data<R: Runtime>(
-    app_handle: AppHandle<R>,
-    export_path: &str,
-    workspace_ids: Vec<&str>,
-    include_private_environments: bool,
-) -> YaakResult<()> {
-    let version = app_handle.package_info().version.to_string();
-    Ok(export::export_data(ExportDataParams {
-        query_manager: &app_handle.db_manager(),
-        yaak_version: &version,
-        export_path: Path::new(export_path),
-        workspace_ids,
-        include_private_environments,
-    })?)
-}
-
 /// Decodes base64 and writes the bytes to a file the user picked.
 ///
 /// The webview can't do this itself: its `fs` permissions are read-only and scoped to the app
@@ -1489,20 +1381,6 @@ async fn cmd_save_base64_to_binary<R: Runtime>(
    Ok(())
 }

-async fn cmd_save_response<R: Runtime>(
-    app_handle: AppHandle<R>,
-    response_id: &str,
-    filepath: &str,
-) -> YaakResult<()> {
-    let response = app_handle.db().get_http_response(response_id)?;
-
-    let body_path =
-        response.body_path.ok_or(GenericError("Response does not have a body".to_string()))?;
-    fs::copy(body_path, filepath).map_err(|e| GenericError(e.to_string()))?;
-
-    Ok(())
-}
-
 async fn cmd_send_http_request<R: Runtime>(
    app_handle: AppHandle<R>,
    window: WebviewWindow<R>,
@@ -1586,90 +1464,6 @@ async fn cmd_reload_plugins<R: Runtime>(
    Ok(errors)
 }

-async fn cmd_plugin_info<R: Runtime>(
-    id: &str,
-    app_handle: AppHandle<R>,
-    plugin_manager: State<'_, PluginManager>,
-) -> YaakResult<PluginMetadata> {
-    let plugin = app_handle.db().get_plugin(id)?;
-    if let Some(plugin_handle) = plugin_manager
-        .get_plugin_by_dir(plugin.directory.as_str())
-        .await
-    {
-        return Ok(plugin_handle.info());
-    }
-
-    if let Ok(metadata) = get_plugin_meta(&PathBuf::from(&plugin.directory)) {
-        return Ok(metadata);
-    }
-
-    Ok(fallback_plugin_metadata(&plugin.directory))
-}
-
-fn fallback_plugin_metadata(directory: &str) -> PluginMetadata {
-    let display_name = PathBuf::from(directory)
-        .file_name()
-        .and_then(|name| name.to_str())
-        .filter(|name| !name.is_empty())
-        .unwrap_or(directory)
-        .to_string();
-
-    PluginMetadata {
-        version: "Unavailable".to_string(),
-        name: directory.to_string(),
-        display_name,
-        description: Some(format!("Plugin metadata could not be loaded from {directory}")),
-        homepage_url: None,
-        repository_url: None,
-    }
-}
-
-async fn cmd_delete_all_grpc_connections<R: Runtime>(
-    request_id: &str,
-    app_handle: AppHandle<R>,
-    window: WebviewWindow<R>,
-) -> YaakResult<()> {
-    Ok(app_handle.db().delete_all_grpc_connections_for_request(
-        request_id,
-        &UpdateSource::from_window_label(window.label()),
-    )?)
-}
-
-async fn cmd_delete_send_history<R: Runtime>(
-    workspace_id: &str,
-    app_handle: AppHandle<R>,
-    window: WebviewWindow<R>,
-) -> YaakResult<()> {
-    Ok(app_handle.with_tx(|tx| {
-        let source = &UpdateSource::from_window_label(window.label());
-        tx.delete_all_http_responses_for_workspace(workspace_id, source)?;
-        tx.delete_all_grpc_connections_for_workspace(workspace_id, source)?;
-        tx.delete_all_websocket_connections_for_workspace(workspace_id, source)?;
-        Ok(())
-    })?)
-}
-
-async fn cmd_delete_all_http_responses<R: Runtime>(
-    request_id: &str,
-    app_handle: AppHandle<R>,
-    window: WebviewWindow<R>,
-) -> YaakResult<()> {
-    app_handle.db().delete_all_http_responses_for_request(
-        request_id,
-        &UpdateSource::from_window_label(window.label()),
-    )?;
-    Ok(())
-}
-
-async fn cmd_get_workspace_meta<R: Runtime>(
-    app_handle: AppHandle<R>,
-    workspace_id: &str,
-) -> YaakResult<WorkspaceMeta> {
-    let db = app_handle.db();
-    let workspace = db.get_workspace(workspace_id)?;
-    Ok(db.get_or_create_workspace_meta(&workspace.id)?)
-}
-
 async fn cmd_new_child_window<R: Runtime>(
    parent_window: WebviewWindow<R>,
    url: &str,
@@ -12,10 +12,8 @@ use tauri_plugin_dialog::{DialogExt, MessageDialogKind};
 use yaak_models::blob_manager::BlobManager;
 use yaak_models::client_db::ClientDb;
 use yaak_models::error::Result;
-use yaak_models::models::{AnyModel, GraphQlIntrospection, GrpcEvent, Settings, WebsocketEvent};
 use yaak_models::query_manager::QueryManager;
 use yaak_models::util::{ModelPayload, UpdateSource};
-use yaak_plugins::manager::PluginManager;

 const MODEL_CHANGES_RETENTION_HOURS: i64 = 1;
 const MODEL_CHANGES_POLL_INTERVAL_MS: u64 = 1000;
@@ -123,216 +121,12 @@ impl<'a, R: Runtime, M: Manager<R>> QueryManagerExt<'a, R> for M {
 /// Extension trait for accessing the BlobManager from Tauri Manager types.
 pub trait BlobManagerExt<'a, R> {
    fn blob_manager(&'a self) -> State<'a, BlobManager>;
-    fn blobs(&'a self) -> yaak_models::blob_manager::BlobContext;
 }

 impl<'a, R: Runtime, M: Manager<R>> BlobManagerExt<'a, R> for M {
    fn blob_manager(&'a self) -> State<'a, BlobManager> {
        self.state::<BlobManager>()
    }
-
-    fn blobs(&'a self) -> yaak_models::blob_manager::BlobContext {
-        let manager = self.state::<BlobManager>();
-        manager.inner().connect()
-    }
-}
-
-// Commands for yaak-models
-use tauri::WebviewWindow;
-
-pub(crate) fn models_upsert<R: Runtime>(
-    window: WebviewWindow<R>,
-    model: AnyModel,
-) -> Result<String> {
-    use yaak_models::error::Error::GenericError;
-
-    let db = window.db();
-    let blobs = window.blob_manager();
-    let source = &UpdateSource::from_window_label(window.label());
-    let id = match model {
-        AnyModel::CookieJar(m) => db.upsert_cookie_jar(&m, source)?.id,
-        AnyModel::Environment(m) => db.upsert_environment(&m, source)?.id,
-        AnyModel::Folder(m) => db.upsert_folder(&m, source)?.id,
-        AnyModel::GrpcRequest(m) => db.upsert_grpc_request(&m, source)?.id,
-        AnyModel::HttpRequest(m) => db.upsert_http_request(&m, source)?.id,
-        AnyModel::HttpResponse(m) => db.upsert_http_response(&m, source, &blobs)?.id,
-        AnyModel::KeyValue(m) => db.upsert_key_value(&m, source)?.id,
-        AnyModel::Plugin(m) => db.upsert_plugin(&m, source)?.id,
-        AnyModel::Settings(m) => db.upsert_settings(&m, source)?.id,
-        AnyModel::WebsocketRequest(m) => db.upsert_websocket_request(&m, source)?.id,
-        AnyModel::Workspace(m) => db.upsert_workspace(&m, source)?.id,
-        AnyModel::WorkspaceMeta(m) => db.upsert_workspace_meta(&m, source)?.id,
-        a => return Err(GenericError(format!("Cannot upsert AnyModel {a:?})"))),
-    };
-
-    Ok(id)
-}
-
-// Async so cascading deletes (e.g. a workspace with thousands of requests) run on a
-// blocking thread instead of stalling the main thread and all other IPC.
-pub(crate) async fn models_delete<R: Runtime>(
-    window: WebviewWindow<R>,
-    model: AnyModel,
-) -> Result<String> {
-    use yaak_models::error::Error::GenericError;
-
-    tauri::async_runtime::spawn_blocking(move || {
-        let blobs = window.blob_manager();
-        // Use transaction for deletions because it might recurse
-        window.with_tx(|tx| {
-            let source = &UpdateSource::from_window_label(window.label());
-            let id = match model {
-                AnyModel::CookieJar(m) => tx.delete_cookie_jar(&m, source)?.id,
-                AnyModel::Environment(m) => tx.delete_environment(&m, source)?.id,
-                AnyModel::Folder(m) => tx.delete_folder(&m, source)?.id,
-                AnyModel::GrpcConnection(m) => tx.delete_grpc_connection(&m, source)?.id,
-                AnyModel::GrpcRequest(m) => tx.delete_grpc_request(&m, source)?.id,
-                AnyModel::HttpRequest(m) => tx.delete_http_request(&m, source)?.id,
-                AnyModel::HttpResponse(m) => tx.delete_http_response(&m, source, &blobs)?.id,
-                AnyModel::Plugin(m) => tx.delete_plugin(&m, source)?.id,
-                AnyModel::WebsocketConnection(m) => tx.delete_websocket_connection(&m, source)?.id,
-                AnyModel::WebsocketRequest(m) => tx.delete_websocket_request(&m, source)?.id,
-                AnyModel::Workspace(m) => tx.delete_workspace(&m, source, &blobs)?.id,
-                a => return Err(GenericError(format!("Cannot delete AnyModel {a:?})"))),
-            };
-            Ok(id)
-        })
-    })
-    .await
-    .map_err(|e| GenericError(format!("Delete task failed: {e}")))?
-}
-
-pub(crate) fn models_duplicate<R: Runtime>(
-    window: WebviewWindow<R>,
-    model_type: String,
-    model_id: String,
-) -> Result<String> {
-    use yaak_models::error::Error::GenericError;
-
-    // Use transaction for duplications because it might recurse
-    window.with_tx(|tx| {
-        let source = &UpdateSource::from_window_label(window.label());
-        // Fetch the model fresh from the DB so the duplicate doesn't come from
-        // a stale frontend snapshot
-        let id = match model_type.as_str() {
-            "environment" => {
-                tx.duplicate_environment(&tx.get_environment(&model_id)?, source)?.id
-            }
-            "folder" => tx.duplicate_folder(&tx.get_folder(&model_id)?, source)?.id,
-            "grpc_request" => {
-                tx.duplicate_grpc_request(&tx.get_grpc_request(&model_id)?, source)?.id
-            }
-            "http_request" => {
-                tx.duplicate_http_request(&tx.get_http_request(&model_id)?, source)?.id
-            }
-            "websocket_request" => {
-                tx.duplicate_websocket_request(&tx.get_websocket_request(&model_id)?, source)?.id
-            }
-            t => return Err(GenericError(format!("Cannot duplicate model type {t}"))),
-        };
-
-        Ok(id)
-    })
-}
-
-pub(crate) fn models_websocket_events<R: Runtime>(
-    app_handle: tauri::AppHandle<R>,
-    connection_id: &str,
-) -> Result<Vec<WebsocketEvent>> {
-    Ok(app_handle.db().list_websocket_events(connection_id)?)
-}
-
-pub(crate) fn models_grpc_events<R: Runtime>(
-    app_handle: tauri::AppHandle<R>,
-    connection_id: &str,
-) -> Result<Vec<GrpcEvent>> {
-    Ok(app_handle.db().list_grpc_events(connection_id)?)
-}
-
-pub(crate) fn models_get_settings<R: Runtime>(app_handle: tauri::AppHandle<R>) -> Result<Settings> {
-    Ok(app_handle.db().get_settings())
-}
-
-pub(crate) fn models_get_graphql_introspection<R: Runtime>(
-    app_handle: tauri::AppHandle<R>,
-    request_id: &str,
-) -> Result<Option<GraphQlIntrospection>> {
-    Ok(app_handle.db().get_graphql_introspection(request_id))
-}
-
-pub(crate) fn models_upsert_graphql_introspection<R: Runtime>(
-    app_handle: tauri::AppHandle<R>,
-    request_id: &str,
-    workspace_id: &str,
-    content: Option<String>,
-    window: WebviewWindow<R>,
-) -> Result<GraphQlIntrospection> {
-    let source = UpdateSource::from_window_label(window.label());
-    Ok(app_handle.db().upsert_graphql_introspection(workspace_id, request_id, content, &source)?)
-}
-
-pub(crate) async fn models_workspace_models<R: Runtime>(
-    window: WebviewWindow<R>,
-    workspace_id: Option<&str>,
-    plugin_manager: State<'_, PluginManager>,
-) -> Result<String> {
-    let mut l: Vec<AnyModel> = Vec::new();
-
-    // Add the global models
-    {
-        let db = window.db();
-        l.push(db.get_settings().into());
-        l.append(&mut db.list_workspaces()?.into_iter().map(Into::into).collect());
-        l.append(&mut db.list_key_values()?.into_iter().map(Into::into).collect());
-    }
-
-    let plugins = {
-        let db = window.db();
-        db.list_plugins()?
-    };
-
-    let plugins = plugin_manager.resolve_plugins_for_runtime_from_db(plugins).await;
-    l.append(&mut plugins.into_iter().map(Into::into).collect());
-
-    // Add the workspace children
-    if let Some(wid) = workspace_id {
-        let db = window.db();
-        l.append(&mut db.list_cookie_jars(wid)?.into_iter().map(Into::into).collect());
-        l.append(&mut db.list_environments_ensure_base(wid)?.into_iter().map(Into::into).collect());
-        l.append(&mut db.list_folders(wid)?.into_iter().map(Into::into).collect());
-        l.append(&mut db.list_grpc_connections(wid)?.into_iter().map(Into::into).collect());
-        l.append(&mut db.list_grpc_requests(wid)?.into_iter().map(Into::into).collect());
-        l.append(&mut db.list_http_requests(wid)?.into_iter().map(Into::into).collect());
-        l.append(&mut db.list_http_responses(wid, None)?.into_iter().map(Into::into).collect());
-        l.append(&mut db.list_websocket_connections(wid)?.into_iter().map(Into::into).collect());
-        l.append(&mut db.list_websocket_requests(wid)?.into_iter().map(Into::into).collect());
-        l.append(&mut db.list_workspace_metas(wid)?.into_iter().map(Into::into).collect());
-    }
-
-    let j = serde_json::to_string(&l)?;
-
-    Ok(escape_str_for_webview(&j))
-}
-
-fn escape_str_for_webview(input: &str) -> String {
-    input
-        .chars()
-        .map(|c| {
-            let code = c as u32;
-            // ASCII
-            if code <= 0x7F {
-                c.to_string()
-                // BMP characters encoded normally
-            } else if code < 0xFFFF {
-                format!("\\u{:04X}", code)
-                // Beyond BMP encoded a surrogate pairs
-            } else {
-                let high = ((code - 0x10000) >> 10) + 0xD800;
-                let low = ((code - 0x10000) & 0x3FF) + 0xDC00;
-                format!("\\u{:04X}\\u{:04X}", high, low)
-            }
-        })
-        .collect()
 }

 /// Initialize database managers as a plugin (for initialization order).
@@ -7,6 +7,8 @@ use crate::{
    call_frontend, cookie_jar_from_window, environment_from_window, get_window_from_plugin_context,
    workspace_from_window,
 };
+use base64::Engine;
+use base64::prelude::BASE64_STANDARD;
 use chrono::Utc;
 use log::error;
 use std::sync::Arc;
@@ -16,6 +18,7 @@ use tauri_plugin_opener::OpenerExt;
 use yaak::plugin_events::{
    GroupedPluginEvent, HostRequest, SharedPluginEventContext, handle_shared_plugin_event,
 };
+use yaak::response_body::FileResponseBodyStore;
 use yaak_crypto::manager::EncryptionManager;
 use yaak_http::cookies::get_cookie_value_from_jar;
 use yaak_models::models::{HttpResponse, Plugin};
@@ -54,6 +57,7 @@ pub(crate) async fn handle_plugin_event<R: Runtime>(

    match handle_shared_plugin_event(
        app_handle.db_manager().inner(),
+        &FileResponseBodyStore::new(app_handle.db_manager().inner()),
        &event.payload,
        SharedPluginEventContext {
            plugin_name: &plugin_name,
@@ -313,8 +317,13 @@ async fn handle_host_plugin_request<R: Runtime>(
            )
            .await?;

+            // An ad-hoc request saves nothing, so the engine hands the body
+            // back and this reply is the only place the plugin can get it.
+            let body = http_response.body.returned_bytes().map(|b| BASE64_STANDARD.encode(b));
+
            Ok(Some(InternalEventPayload::SendHttpRequestResponse(SendHttpRequestResponse {
                http_response: http_response.response,
+                body,
            })))
        }
        HostRequest::OpenWindow(req) => {
@@ -194,12 +194,6 @@ pub async fn cmd_plugins_uninstall<R: Runtime>(
    Ok(delete_and_uninstall(plugin_manager, &query_manager, &plugin_context, plugin_id).await?)
 }

-pub async fn cmd_plugin_init_errors(
-    plugin_manager: State<'_, PluginManager>,
-) -> Result<Vec<(String, String)>> {
-    Ok(plugin_manager.take_init_errors().await)
-}
-
 pub async fn cmd_plugins_updates<R: Runtime>(
    app_handle: AppHandle<R>,
 ) -> Result<PluginUpdatesResponse> {
@@ -6,11 +6,10 @@ use crate::error::Result;
 use crate::models_ext::{BlobManagerExt, QueryManagerExt};
 use chrono::Utc;
 use log::warn;
-use serde::{Deserialize, Serialize};
 use std::path::Path;
 use tauri::{AppHandle, Listener, Runtime};
 use tokio::sync::watch;
-use ts_rs::TS;
+use yaak_rpc_schema::WatchResult;
 use yaak_sync::error::Error::InvalidSyncDirectory;
 use yaak_sync::sync::{
    FsCandidate, SyncOp, apply_sync_ops, apply_sync_state_ops, compute_sync_ops, get_db_candidates,
@@ -57,13 +56,6 @@ pub(crate) async fn cmd_sync_apply<R: Runtime>(
    Ok(())
 }

-#[derive(Debug, Clone, Serialize, Deserialize, TS)]
-#[serde(rename_all = "camelCase")]
-#[ts(export, export_to = "index.ts")]
-pub(crate) struct WatchResult {
-    unlisten_event: String,
-}
-
 pub(crate) async fn sync_watch<R, F>(
    app_handle: AppHandle<R>,
    sync_dir: &Path,
@@ -29,17 +29,6 @@ use yaak_templates::{RenderErrorBehavior, RenderOptions};
 use yaak_tls::find_client_certificate;
 use yaak_ws::{WebsocketManager, render_websocket_request};

-pub async fn cmd_ws_delete_connections<R: Runtime>(
-    request_id: &str,
-    app_handle: AppHandle<R>,
-    window: WebviewWindow<R>,
-) -> Result<()> {
-    Ok(app_handle.db().delete_all_websocket_connections_for_request(
-        request_id,
-        &UpdateSource::from_window_label(window.label()),
-    )?)
-}
-
 pub async fn cmd_ws_send<R: Runtime>(
    connection_id: &str,
    environment_id: Option<&str>,
@@ -7,3 +7,4 @@ publish = false
 [dependencies]
 tauri = { workspace = true }
 regex = "1.11.0"
+yaak-core = { workspace = true }
@@ -1,38 +1,53 @@
 use regex::Regex;
-use tauri::{Runtime, WebviewWindow};
+use tauri::{Runtime, Url, WebviewWindow};
+use yaak_core::WorkspaceContext;

 pub trait WorkspaceWindowTrait {
    fn workspace_id(&self) -> Option<String>;
    fn cookie_jar_id(&self) -> Option<String>;
    fn environment_id(&self) -> Option<String>;
    fn request_id(&self) -> Option<String>;
+    /// All four at once, from a single read of the window URL.
+    fn workspace_context(&self) -> WorkspaceContext;
 }

 impl<R: Runtime> WorkspaceWindowTrait for WebviewWindow<R> {
    fn workspace_id(&self) -> Option<String> {
-        let url = self.url().unwrap();
-        let re = Regex::new(r"/workspaces/(?<id>\w+)").unwrap();
-        match re.captures(url.as_str()) {
-            None => None,
-            Some(captures) => captures.name("id").map(|c| c.as_str().to_string()),
-        }
+        workspace_id_from_url(&self.url().unwrap())
    }

    fn cookie_jar_id(&self) -> Option<String> {
-        let url = self.url().unwrap();
-        let mut query_pairs = url.query_pairs();
-        query_pairs.find(|(k, _v)| k == "cookie_jar_id").map(|(_k, v)| v.to_string())
+        query_param(&self.url().unwrap(), "cookie_jar_id")
    }

    fn environment_id(&self) -> Option<String> {
-        let url = self.url().unwrap();
-        let mut query_pairs = url.query_pairs();
-        query_pairs.find(|(k, _v)| k == "environment_id").map(|(_k, v)| v.to_string())
+        query_param(&self.url().unwrap(), "environment_id")
    }

    fn request_id(&self) -> Option<String> {
+        query_param(&self.url().unwrap(), "request_id")
+    }
+
+    fn workspace_context(&self) -> WorkspaceContext {
        let url = self.url().unwrap();
-        let mut query_pairs = url.query_pairs();
-        query_pairs.find(|(k, _v)| k == "request_id").map(|(_k, v)| v.to_string())
+        WorkspaceContext {
+            workspace_id: workspace_id_from_url(&url),
+            environment_id: query_param(&url, "environment_id"),
+            cookie_jar_id: query_param(&url, "cookie_jar_id"),
+            request_id: query_param(&url, "request_id"),
+        }
    }
 }
+
+fn workspace_id_from_url(url: &Url) -> Option<String> {
+    let re = Regex::new(r"/workspaces/(?<id>\w+)").unwrap();
+    match re.captures(url.as_str()) {
+        None => None,
+        Some(captures) => captures.name("id").map(|c| c.as_str().to_string()),
+    }
+}
+
+fn query_param(url: &Url, key: &str) -> Option<String> {
+    let mut query_pairs = url.query_pairs();
+    query_pairs.find(|(k, _v)| k == key).map(|(_k, v)| v.to_string())
+}
@@ -9,12 +9,20 @@ chrono = { version = "0.4.38", features = ["serde"] }
 include_dir = "0.7"
 log = { workspace = true }
 nanoid = "0.4.0"
-r2d2 = "0.8.10"
-r2d2_sqlite = { version = "0.25.0" }
-rusqlite = { version = "0.32.1", features = ["bundled", "chrono"] }
-sea-query = { version = "0.32.1", features = ["with-chrono", "attr"] }
-sea-query-rusqlite = { version = "0.7.0", features = ["with-chrono"] }
+rusqlite = { version = "0.38", features = ["bundled", "chrono"] }
+sea-query-rusqlite = { version = "0.8.0", features = ["with-chrono"] }
+sea-query = { version = "1.0", features = ["with-chrono", "attr"] }
 serde = { workspace = true, features = ["derive"] }
 serde_json = { workspace = true }
 thiserror = { workspace = true }
 ts-rs = { workspace = true }
+
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
+r2d2 = "0.8.10"
+r2d2_sqlite = { version = "0.32" }
+
+# nanoid pulls getrandom, which needs to be told how to reach the browser's
+# CSPRNG on wasm32-unknown-unknown. Native targets are unaffected.
+[target.'cfg(target_arch = "wasm32")'.dependencies]
+getrandom = { version = "0.2", features = ["js"] }
+uuid = { version = "1", features = ["js"] }
@@ -1,9 +1,8 @@
-use r2d2::PooledConnection;
-use r2d2_sqlite::SqliteConnectionManager;
+use crate::pool::SqliteConn;
 use rusqlite::{Connection, Statement, ToSql, Transaction};

 pub enum ConnectionOrTx<'a> {
-    Connection(PooledConnection<SqliteConnectionManager>),
+    Connection(SqliteConn),
    Transaction(&'a Transaction<'a>),
 }

@@ -3,6 +3,7 @@ use crate::error::Error::ModelNotFound;
 use crate::error::Result;
 use crate::traits::UpsertModelInfo;
 use crate::update_source::UpdateSource;
+use sea_query::ExprTrait;
 use sea_query::{
    Asterisk, Expr, Func, IntoColumnRef, IntoIden, OnConflict, Query, SimpleExpr,
    SqliteQueryBuilder,
@@ -7,7 +7,7 @@ pub enum Error {
    SqlError(#[from] rusqlite::Error),

    #[error("SQL Pool error: {0}")]
-    SqlPoolError(#[from] r2d2::Error),
+    SqlPoolError(#[from] crate::pool::PoolError),

    #[error("Database error: {0}")]
    Database(String),
@@ -2,6 +2,7 @@ pub mod connection_or_tx;
 pub mod db_context;
 pub mod error;
 pub mod migrate;
+pub mod pool;
 pub mod traits;
 pub mod update_source;
 pub mod util;
@@ -11,13 +12,15 @@ pub use connection_or_tx::ConnectionOrTx;
 pub use db_context::DbContext;
 pub use error::{Error, Result};
 pub use migrate::run_migrations;
+pub use pool::{PoolError, SqliteConn, SqlitePool};
 pub use traits::{UpsertModelInfo, upsert_date};
 pub use update_source::{ModelChangeEvent, UpdateSource};
 pub use util::{generate_id, generate_id_of_length, generate_prefixed_id};

-// Re-export pool types that consumers will need
+// Re-export types that consumers will need
+#[cfg(not(target_arch = "wasm32"))]
 pub use r2d2;
+#[cfg(not(target_arch = "wasm32"))]
 pub use r2d2_sqlite;
 pub use rusqlite;
 pub use sea_query;
-pub use sea_query_rusqlite;
@@ -1,8 +1,7 @@
 use crate::error::Result;
+use crate::pool::SqlitePool;
 use include_dir::Dir;
 use log::{debug, info};
-use r2d2::Pool;
-use r2d2_sqlite::SqliteConnectionManager;
 use rusqlite::{OptionalExtension, params};

 const TRACKING_TABLE: &str = "_sqlx_migrations";
@@ -11,7 +10,7 @@ const TRACKING_TABLE: &str = "_sqlx_migrations";
 ///
 /// Migrations are sorted by filename (use timestamp prefixes like `00000001_init.sql`).
 /// Applied migrations are tracked in `_sqlx_migrations`.
-pub fn run_migrations(pool: &Pool<SqliteConnectionManager>, dir: &Dir<'_>) -> Result<()> {
+pub fn run_migrations(pool: &SqlitePool, dir: &Dir<'_>) -> Result<()> {
    info!("Running migrations");

    // Create tracking table
@@ -0,0 +1,80 @@
+//! Where connections come from.
+//!
+//! Every query in the model layer asks a pool for a connection, uses it, and
+//! hands it back. That is the whole contract, and it is the one place the
+//! desktop and the browser genuinely differ: the desktop has threads and wants
+//! an r2d2 pool; a browser tab has one thread, no way to spawn another, and one
+//! connection is exactly enough. Everything above this module is identical on
+//! both.
+//!
+//! On native targets `SqlitePool` *is* `r2d2::Pool` — a type alias, so nothing
+//! that already builds pools changes. On wasm it is one connection that every
+//! `get()` hands out a shared handle to.
+//!
+//! A `SqliteConn` only ever derefs immutably. The code above this layer opens
+//! transactions with [`rusqlite::Transaction::new_unchecked`], which takes
+//! `&Connection`; the `&mut` that `Connection::transaction` demands is a
+//! compile-time guard against nesting a transaction on one connection, and it
+//! is what would have forced the wasm pool to lend its connection exclusively.
+//! The model layer nests connections freely — a helper that already holds one
+//! calls another that asks for its own — so an exclusive lend would panic on
+//! the second ask. Sharing the handle instead makes nested *reads* work the way
+//! they do on the desktop; nested *write transactions* fail on both, only
+//! differently (here SQLite refuses the inner `BEGIN`; natively the inner
+//! connection blocks on `busy_timeout` and then fails).
+
+#[cfg(not(target_arch = "wasm32"))]
+mod imp {
+    use r2d2_sqlite::SqliteConnectionManager;
+
+    pub type SqlitePool = r2d2::Pool<SqliteConnectionManager>;
+    pub type SqliteConn = r2d2::PooledConnection<SqliteConnectionManager>;
+    pub type PoolError = r2d2::Error;
+}
+
+#[cfg(target_arch = "wasm32")]
+mod imp {
+    use rusqlite::Connection;
+    use std::ops::Deref;
+    use std::rc::Rc;
+
+    /// One connection, shared by everyone who asks.
+    ///
+    /// `Rc` rather than `Arc` because a `Connection` is `!Sync`, so wrapping
+    /// it in an `Arc` would buy no `Send`/`Sync` anyway — and there is one
+    /// thread here to be honest about.
+    #[derive(Clone, Debug)]
+    pub struct SqlitePool {
+        conn: Rc<Connection>,
+    }
+
+    impl SqlitePool {
+        pub fn single(conn: Connection) -> Self {
+            Self { conn: Rc::new(conn) }
+        }
+
+        /// Another handle to the connection. Cannot fail; the `Result` keeps
+        /// the signature identical to r2d2's so callers are written once.
+        pub fn get(&self) -> Result<SqliteConn, PoolError> {
+            Ok(SqliteConn(self.conn.clone()))
+        }
+    }
+
+    /// The error a `get()` would return if it could. It can't, so this has no
+    /// variants; it exists so `Error::SqlPoolError` has the same shape on both
+    /// targets.
+    #[derive(Debug, thiserror::Error)]
+    pub enum PoolError {}
+
+    #[derive(Debug)]
+    pub struct SqliteConn(Rc<Connection>);
+
+    impl Deref for SqliteConn {
+        type Target = Connection;
+        fn deref(&self) -> &Connection {
+            &self.0
+        }
+    }
+}
+
+pub use imp::*;
@@ -0,0 +1,18 @@
+[package]
+name = "yaak-rpc-schema"
+version = "0.0.0"
+edition = "2024"
+authors = ["Gregory Schier"]
+publish = false
+
+[dependencies]
+serde = { workspace = true, features = ["derive"] }
+ts-rs = { workspace = true }
+yaak-git = { workspace = true }
+yaak-grpc = { workspace = true }
+yaak-models = { workspace = true }
+yaak-plugins = { workspace = true }
+yaak-sse = { workspace = true }
+yaak-sync = { workspace = true }
+yaak-templates = { workspace = true }
+yaak-ws = { workspace = true }
@@ -0,0 +1,44 @@
+# yaak-rpc-schema
+
+The wire schema for the app's RPC surface: every command name, its request
+payload, and its response type, declared once.
+
+Every host that serves the Yaak UI — the desktop app today, the browser bridge
+and anything after it — imports these types and implements the commands against
+them. That is what keeps a request's shape from drifting between hosts, and it
+is why the TypeScript bindings (`bindings/gen_rpc.ts`, exposed to the frontend
+as `@yaakapp-internal/rpc-schema`) are generated from one place.
+
+Nothing here depends on Tauri or on any host. Request structs are plain data,
+and so are the few response types declared here rather than in an engine crate.
+Command *bodies* live with the host that runs them.
+
+## Adding a command
+
+1. Add its request struct and an entry in `with_commands!` in `src/lib.rs`.
+2. Write the adapter in each host — the desktop's live in
+   `crates-tauri/yaak-app-client/src/rpc_ext.rs`. A host that does not support
+   the command still has to say so; a missing adapter fails to compile.
+3. Regenerate the bindings: `cargo test -p yaak-rpc-schema` writes
+   `bindings/gen_rpc.ts`, which is committed.
+
+## How hosts consume the list
+
+`with_commands!` takes the name of a `macro_rules!` macro and calls it with the
+full `name(Req) -> Res` list. Each host writes a small macro that receives that
+list and builds its router:
+
+```rust
+macro_rules! register_commands {
+    ( $( $name:ident ( $req:ty ) -> $res:ty ),* $(,)? ) => {
+        pub fn build_router() -> RpcRouter<MyCtx> {
+            let mut router = RpcRouter::new();
+            $( router.register(stringify!($name), rpc_handler_async!($name)); )*
+            router
+        }
+    };
+}
+yaak_rpc_schema::with_commands!(register_commands);
+```
+
+The schema decides *what* commands exist; the host decides *how* each one runs.
@@ -0,0 +1,4 @@
+// The RPC wire schema, generated by ts-rs from the Rust declarations in
+// src/lib.rs. `RpcSchema` maps every command name to its (request, response)
+// pair; the app's `rpc()` helper derives its command union from it.
+export * from "./bindings/gen_rpc";
@@ -0,0 +1,6 @@
+{
+  "name": "@yaakapp-internal/rpc-schema",
+  "version": "1.0.0",
+  "private": true,
+  "main": "index.ts"
+}
@@ -0,0 +1,23 @@
+[package]
+name = "yaak-commands"
+version = "0.0.0"
+edition = "2024"
+authors = ["Gregory Schier"]
+publish = false
+
+[dependencies]
+log = { workspace = true }
+serde_json = { workspace = true }
+thiserror = { workspace = true }
+tokio = { workspace = true, features = ["rt"] }
+yaak = { workspace = true }
+yaak-core = { workspace = true }
+yaak-crypto = { workspace = true }
+yaak-models = { workspace = true }
+yaak-plugins = { workspace = true }
+yaak-rpc-schema = { workspace = true }
+yaak-templates = { workspace = true }
+
+[dev-dependencies]
+tempfile = "3"
+tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }
@@ -0,0 +1,23 @@
+//! Export and formatting.
+
+use crate::error::Result;
+use crate::host::Host;
+use std::path::Path;
+use yaak::export::{self, ExportDataParams};
+use yaak_rpc_schema::*;
+use yaak_templates::format_json::format_json;
+
+pub async fn cmd_export_data<H: Host>(host: H, req: CmdExportDataReq) -> Result<()> {
+    let version = host.app_version();
+    Ok(export::export_data(ExportDataParams {
+        query_manager: host.query_manager(),
+        yaak_version: &version,
+        export_path: Path::new(&req.export_path),
+        workspace_ids: req.workspace_ids.iter().map(|s| s.as_str()).collect(),
+        include_private_environments: req.include_private_environments,
+    })?)
+}
+
+pub async fn cmd_format_json<H: Host>(_host: H, req: CmdFormatJsonReq) -> Result<String> {
+    Ok(format_json(&req.text, "  "))
+}
@@ -0,0 +1,41 @@
+//! Workspace encryption keys and the `secure()` template function.
+
+use crate::error::Result;
+use crate::host::{Host, PluginHost};
+use yaak_plugins::native_template_functions::decrypt_secure_template_function;
+use yaak_rpc_schema::*;
+
+pub async fn cmd_enable_encryption<H: Host>(host: H, req: CmdEnableEncryptionReq) -> Result<()> {
+    host.encryption_manager().ensure_workspace_key(&req.workspace_id)?;
+    host.encryption_manager().reveal_workspace_key(&req.workspace_id)?;
+    Ok(())
+}
+
+pub async fn cmd_reveal_workspace_key<H: Host>(
+    host: H,
+    req: CmdRevealWorkspaceKeyReq,
+) -> Result<String> {
+    Ok(host.encryption_manager().reveal_workspace_key(&req.workspace_id)?)
+}
+
+pub async fn cmd_set_workspace_key<H: Host>(host: H, req: CmdSetWorkspaceKeyReq) -> Result<()> {
+    host.encryption_manager().set_human_key(&req.workspace_id, &req.key)?;
+    Ok(())
+}
+
+pub async fn cmd_disable_encryption<H: Host>(host: H, req: CmdDisableEncryptionReq) -> Result<()> {
+    host.encryption_manager().disable_encryption(&req.workspace_id)?;
+    Ok(())
+}
+
+pub async fn cmd_decrypt_template<H: Host>(host: H, req: CmdDecryptTemplateReq) -> Result<String> {
+    let plugin_context = host.plugin_context();
+    Ok(decrypt_secure_template_function(host.encryption_manager(), &plugin_context, &req.template)?)
+}
+
+pub async fn cmd_secure_template<H: PluginHost>(
+    host: H,
+    req: CmdSecureTemplateReq,
+) -> Result<String> {
+    host.encrypt_secure_template(&req.template).await
+}
@@ -0,0 +1,30 @@
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum Error {
+    #[error(transparent)]
+    Yaak(#[from] yaak::Error),
+
+    #[error(transparent)]
+    Model(#[from] yaak_models::error::Error),
+
+    #[error(transparent)]
+    Plugin(#[from] yaak_plugins::error::Error),
+
+    #[error(transparent)]
+    Crypto(#[from] yaak_crypto::error::Error),
+
+    #[error(transparent)]
+    Template(#[from] yaak_templates::error::Error),
+
+    #[error("JSON error: {0}")]
+    Json(#[from] serde_json::Error),
+
+    #[error("I/O error: {0}")]
+    Io(#[from] std::io::Error),
+
+    #[error("{0}")]
+    Generic(String),
+}
+
+pub type Result<T> = std::result::Result<T, Error>;
@@ -0,0 +1,118 @@
+//! What a command needs from whatever is running it.
+//!
+//! A command handler is invoked on behalf of one client (a desktop window today)
+//! and needs a handful of things from its surroundings: the shared engine
+//! managers, who the client is, what the client is looking at, and a little
+//! about the app. `Host` is that handful and nothing more. The desktop
+//! implements it over a `WebviewWindow`; a server would implement it over a
+//! connection. Handlers are generic over it, so the same handler body runs
+//! under either without knowing which.
+//!
+//! The surface grows only when a handler being moved here needs something new,
+//! and stays as narrow as those handlers allow. What is deliberately *not* here
+//! is anything only a desktop can do — open a native window, run the updater,
+//! show a native dialog — those handlers stay with the desktop.
+
+use std::future::Future;
+use yaak_core::WorkspaceContext;
+use yaak_crypto::manager::EncryptionManager;
+use yaak_models::blob_manager::{BlobContext, BlobManager};
+use yaak_models::client_db::ClientDb;
+use yaak_models::models::Plugin;
+use yaak_models::query_manager::QueryManager;
+use yaak_models::util::UpdateSource;
+use yaak_plugins::events::PluginContext;
+use yaak_plugins::plugin_meta::PluginMetadata;
+
+/// Only `Clone` is required here. `Send`/`Sync`/`'static` are deliberately
+/// *not*: a browser host is single-threaded and its connection pool is an
+/// `Rc<Connection>` — `rusqlite::Connection` is not `Sync` to begin with — so a
+/// thread-safety bound on the trait would lock that host out of implementing it
+/// at all. The router needs those bounds and states them itself, which is where
+/// they belong: they are a property of a particular transport, not of a command.
+pub trait Host: Clone {
+    /// Stable identity of the client this call is for. On the desktop this is
+    /// the window label. It rides on every model write so the client that made
+    /// a change can tell its own echo from everyone else's.
+    fn client_id(&self) -> &str;
+
+    /// What the client is currently looking at: workspace, environment, cookie
+    /// jar, request. Read at call time, since the client can navigate between
+    /// calls (and during one).
+    fn session(&self) -> WorkspaceContext;
+
+    /// The app version, as reported to the Yaak API and stamped on exports.
+    fn app_version(&self) -> String;
+
+    fn query_manager(&self) -> &QueryManager;
+    fn blob_manager(&self) -> &BlobManager;
+    fn encryption_manager(&self) -> &EncryptionManager;
+
+    // -- Conveniences derived from the above; hosts do not override these --
+
+    fn update_source(&self) -> UpdateSource {
+        UpdateSource::from_window_label(self.client_id())
+    }
+
+    fn plugin_context(&self) -> PluginContext {
+        PluginContext::new(Some(self.client_id().to_string()), self.session().workspace_id)
+    }
+
+    fn db(&self) -> ClientDb<'_> {
+        self.query_manager().connect()
+    }
+
+    fn blobs(&self) -> BlobContext {
+        self.blob_manager().connect()
+    }
+}
+
+/// A host that can also reach plugins.
+///
+/// Separate from [`Host`] so that a command which only touches the database
+/// never demands a plugin runtime it does not call: a host with no plugins
+/// still serves those, and only handlers bounded on `PluginHost` are closed to
+/// it.
+///
+/// These are *operations*, not a handle. Handing back a `&PluginManager` would
+/// have been shorter, but that type is specifically "spawn a Node sidecar and
+/// talk to it over a socket", and a browser host runs plugins in a Worker it
+/// reaches by message — it can answer any of the questions below and can never
+/// produce that type. Naming the questions instead of the answerer is what lets
+/// both hosts exist.
+///
+/// Same rule as [`Host`]: this grows only when a migrated handler needs
+/// something new, and stays as narrow as those handlers allow. Today it is the
+/// four things batch 1 asks for.
+///
+/// The types crossing this boundary still come from `yaak-plugins` — fine on
+/// the desktop, and once its plain data types are split out from its runtime
+/// that becomes an import-path change here rather than an interface one.
+pub trait PluginHost: Host {
+    /// What the running plugin runtime knows about the plugin installed in
+    /// `directory`, or `None` if it has not loaded one from there. Callers fall
+    /// back to reading the plugin's manifest off disk.
+    fn loaded_plugin_metadata(
+        &self,
+        directory: &str,
+    ) -> impl Future<Output = Option<PluginMetadata>>;
+
+    /// Failures from plugin initialization, drained — reporting them clears
+    /// them, so a caller that drops these has lost them.
+    fn take_plugin_init_errors(&self) -> impl Future<Output = Vec<(String, String)>>;
+
+    /// The plugin rows as the runtime sees them: the database says what is
+    /// installed, the runtime knows which are bundled and what version actually
+    /// loaded. A host without a runtime can return them untouched.
+    fn resolve_plugins(&self, plugins: Vec<Plugin>) -> impl Future<Output = Vec<Plugin>>;
+
+    /// Re-encrypt the `secure(...)` values in a template.
+    ///
+    /// Whole operation rather than its pieces because the encryption is only
+    /// half of it: the value is also run through the plugin template functions,
+    /// so this needs the plugin runtime and not just a key.
+    fn encrypt_secure_template(
+        &self,
+        template: &str,
+    ) -> impl Future<Output = crate::Result<String>>;
+}
@@ -0,0 +1,23 @@
+//! Command handlers for the RPC surface, written against [`Host`] instead of
+//! any particular host.
+//!
+//! `yaak_rpc_schema` declares what each command is called and what it takes
+//! and returns; this crate is where the bodies live. Every handler has the
+//! shape the router wants — `async fn(host, Req) -> Result<Res>` — so a host
+//! registers one with a one-line adapter (or none at all), and never
+//! redeclares a command.
+//!
+//! Not every command is here yet. Handlers move in as they are freed of
+//! host-specific types; the ones that stay behind are the ones only a desktop
+//! can serve (native windows, the updater, dialogs) or that still lean on it.
+
+pub mod data;
+pub mod encryption;
+pub mod error;
+pub mod host;
+pub mod models;
+pub mod plugins;
+pub mod responses;
+
+pub use error::{Error, Result};
+pub use host::{Host, PluginHost};
@@ -0,0 +1,179 @@
+//! Reads and writes of models, keyed by the client's identity so the frontend
+//! can suppress its own echoes.
+
+use crate::error::Result;
+use crate::host::{Host, PluginHost};
+use yaak_models::models::{
+    AnyModel, GraphQlIntrospection, GrpcEvent, HttpRequestHeader, Settings, WebsocketEvent,
+    WorkspaceMeta,
+};
+use yaak_models::queries::workspaces::default_headers;
+use yaak_rpc_schema::*;
+
+pub async fn models_upsert<H: Host>(host: H, req: ModelsUpsertReq) -> Result<String> {
+    let db = host.db();
+    let blobs = host.blob_manager();
+    let source = host.update_source();
+    Ok(yaak_models::models_ops::upsert_model(&db, blobs, req.model, &source)?)
+}
+
+/// Deletes cascade — a workspace can hold thousands of requests — and run in a
+/// transaction, which holds a raw connection for the duration.
+///
+/// Whether that wants a blocking thread is the *host's* question, not the
+/// delete's: a desktop with a multi-threaded runtime should keep this off the
+/// runtime (see its adapter), while a single-threaded host has nothing to move
+/// it to and runs it here. So this is the plain version, and a host that wants
+/// to relocate it calls [`models_delete_blocking`] itself.
+pub async fn models_delete<H: Host>(host: H, req: ModelsDeleteReq) -> Result<String> {
+    models_delete_blocking(&host, req)
+}
+
+/// The body of [`models_delete`], callable from a blocking context.
+pub fn models_delete_blocking<H: Host>(host: &H, req: ModelsDeleteReq) -> Result<String> {
+    let source = host.update_source();
+    Ok(host.query_manager().with_tx(|tx| {
+        yaak_models::models_ops::delete_model(tx, host.blob_manager(), req.model, &source)
+    })?)
+}
+
+/// Duplicates recurse, so this runs in a transaction too.
+pub async fn models_duplicate<H: Host>(host: H, req: ModelsDuplicateReq) -> Result<String> {
+    let source = host.update_source();
+    Ok(host.query_manager().with_tx(|tx| {
+        yaak_models::models_ops::duplicate_model(tx, &req.model_type, &req.model_id, &source)
+    })?)
+}
+
+pub async fn models_websocket_events<H: Host>(
+    host: H,
+    req: ModelsWebsocketEventsReq,
+) -> Result<Vec<WebsocketEvent>> {
+    Ok(host.db().list_websocket_events(&req.connection_id)?)
+}
+
+pub async fn models_grpc_events<H: Host>(
+    host: H,
+    req: ModelsGrpcEventsReq,
+) -> Result<Vec<GrpcEvent>> {
+    Ok(host.db().list_grpc_events(&req.connection_id)?)
+}
+
+pub async fn models_get_settings<H: Host>(host: H, _req: ModelsGetSettingsReq) -> Result<Settings> {
+    Ok(host.db().get_settings())
+}
+
+pub async fn models_get_graphql_introspection<H: Host>(
+    host: H,
+    req: ModelsGetGraphqlIntrospectionReq,
+) -> Result<Option<GraphQlIntrospection>> {
+    Ok(host.db().get_graphql_introspection(&req.request_id))
+}
+
+pub async fn models_upsert_graphql_introspection<H: Host>(
+    host: H,
+    req: ModelsUpsertGraphqlIntrospectionReq,
+) -> Result<GraphQlIntrospection> {
+    let source = host.update_source();
+    Ok(host.db().upsert_graphql_introspection(
+        &req.workspace_id,
+        &req.request_id,
+        req.content,
+        &source,
+    )?)
+}
+
+/// Everything the frontend's model store needs to boot, as one JSON string.
+///
+/// A string rather than a `Vec<AnyModel>` because the desktop has to escape
+/// this payload before it crosses into the webview (see its adapter), and the
+/// frontend `JSON.parse`s either form the same way.
+pub async fn models_workspace_models<H: PluginHost>(
+    host: H,
+    req: ModelsWorkspaceModelsReq,
+) -> Result<String> {
+    let mut l: Vec<AnyModel> = Vec::new();
+
+    // Add the global models
+    {
+        let db = host.db();
+        l.push(db.get_settings().into());
+        l.append(&mut db.list_workspaces()?.into_iter().map(Into::into).collect());
+        l.append(&mut db.list_key_values()?.into_iter().map(Into::into).collect());
+    }
+
+    let plugins = {
+        let db = host.db();
+        db.list_plugins()?
+    };
+
+    let plugins = host.resolve_plugins(plugins).await;
+    l.append(&mut plugins.into_iter().map(Into::into).collect());
+
+    // Add the workspace children
+    if let Some(wid) = req.workspace_id.as_deref() {
+        let db = host.db();
+        l.append(&mut db.list_cookie_jars(wid)?.into_iter().map(Into::into).collect());
+        l.append(&mut db.list_environments_ensure_base(wid)?.into_iter().map(Into::into).collect());
+        l.append(&mut db.list_folders(wid)?.into_iter().map(Into::into).collect());
+        l.append(&mut db.list_grpc_connections(wid)?.into_iter().map(Into::into).collect());
+        l.append(&mut db.list_grpc_requests(wid)?.into_iter().map(Into::into).collect());
+        l.append(&mut db.list_http_requests(wid)?.into_iter().map(Into::into).collect());
+        l.append(&mut db.list_http_responses(wid, None)?.into_iter().map(Into::into).collect());
+        l.append(&mut db.list_websocket_connections(wid)?.into_iter().map(Into::into).collect());
+        l.append(&mut db.list_websocket_requests(wid)?.into_iter().map(Into::into).collect());
+        l.append(&mut db.list_workspace_metas(wid)?.into_iter().map(Into::into).collect());
+    }
+
+    Ok(serde_json::to_string(&l)?)
+}
+
+pub async fn cmd_get_workspace_meta<H: Host>(
+    host: H,
+    req: CmdGetWorkspaceMetaReq,
+) -> Result<WorkspaceMeta> {
+    let db = host.db();
+    let workspace = db.get_workspace(&req.workspace_id)?;
+    Ok(db.get_or_create_workspace_meta(&workspace.id)?)
+}
+
+pub async fn cmd_delete_all_grpc_connections<H: Host>(
+    host: H,
+    req: CmdDeleteAllGrpcConnectionsReq,
+) -> Result<()> {
+    Ok(host.db().delete_all_grpc_connections_for_request(&req.request_id, &host.update_source())?)
+}
+
+pub async fn cmd_delete_all_http_responses<H: Host>(
+    host: H,
+    req: CmdDeleteAllHttpResponsesReq,
+) -> Result<()> {
+    host.db().delete_all_http_responses_for_request(&req.request_id, &host.update_source())?;
+    Ok(())
+}
+
+pub async fn cmd_ws_delete_connections<H: Host>(
+    host: H,
+    req: CmdWsDeleteConnectionsReq,
+) -> Result<()> {
+    Ok(host
+        .db()
+        .delete_all_websocket_connections_for_request(&req.request_id, &host.update_source())?)
+}
+
+pub async fn cmd_delete_send_history<H: Host>(host: H, req: CmdDeleteSendHistoryReq) -> Result<()> {
+    Ok(host.query_manager().with_tx(|tx| {
+        let source = &host.update_source();
+        tx.delete_all_http_responses_for_workspace(&req.workspace_id, source)?;
+        tx.delete_all_grpc_connections_for_workspace(&req.workspace_id, source)?;
+        tx.delete_all_websocket_connections_for_workspace(&req.workspace_id, source)?;
+        Ok::<(), yaak_models::error::Error>(())
+    })?)
+}
+
+pub async fn cmd_default_headers<H: Host>(
+    _host: H,
+    _req: CmdDefaultHeadersReq,
+) -> Result<Vec<HttpRequestHeader>> {
+    Ok(default_headers())
+}
@@ -0,0 +1,48 @@
+//! Plugin queries: what the runtime has loaded, and what failed to load.
+
+use crate::error::Result;
+use crate::host::PluginHost;
+use std::path::PathBuf;
+use yaak_plugins::plugin_meta::{PluginMetadata, get_plugin_meta};
+use yaak_rpc_schema::*;
+
+pub async fn cmd_plugin_info<H: PluginHost>(
+    host: H,
+    req: CmdPluginInfoReq,
+) -> Result<PluginMetadata> {
+    let plugin = host.db().get_plugin(&req.id)?;
+    if let Some(metadata) = host.loaded_plugin_metadata(&plugin.directory).await {
+        return Ok(metadata);
+    }
+
+    if let Ok(metadata) = get_plugin_meta(&PathBuf::from(&plugin.directory)) {
+        return Ok(metadata);
+    }
+
+    Ok(fallback_plugin_metadata(&plugin.directory))
+}
+
+fn fallback_plugin_metadata(directory: &str) -> PluginMetadata {
+    let display_name = PathBuf::from(directory)
+        .file_name()
+        .and_then(|name| name.to_str())
+        .filter(|name| !name.is_empty())
+        .unwrap_or(directory)
+        .to_string();
+
+    PluginMetadata {
+        version: "Unavailable".to_string(),
+        name: directory.to_string(),
+        display_name,
+        description: Some(format!("Plugin metadata could not be loaded from {directory}")),
+        homepage_url: None,
+        repository_url: None,
+    }
+}
+
+pub async fn cmd_plugin_init_errors<H: PluginHost>(
+    host: H,
+    _req: CmdPluginInitErrorsReq,
+) -> Result<Vec<(String, String)>> {
+    Ok(host.take_plugin_init_errors().await)
+}
@@ -0,0 +1,86 @@
+//! Reading back what a send left behind: response events, request bodies, and
+//! where a response body lives.
+
+use crate::error::{Error, Result};
+use crate::host::Host;
+use std::fs;
+use std::path::PathBuf;
+use yaak_models::client_db::ClientDb;
+use yaak_models::models::HttpResponseEvent;
+use yaak_rpc_schema::*;
+
+/// Where a response's body is, and what it is meant to be read as.
+pub struct ResponseBodyLocation {
+    /// None when the response has no stored body.
+    pub path: Option<PathBuf>,
+    /// The response's declared `Content-Type`, empty when it has none.
+    pub content_type: String,
+}
+
+/// Find a response's body from its id alone.
+///
+/// The frontend hands back an id and never a path, so the only bodies reachable
+/// here are ones the engine wrote and the database still knows about. A
+/// response that was never saved has no entry, and its body came back from the
+/// send that made it.
+pub fn locate_response_body(db: &ClientDb, response_id: &str) -> Result<ResponseBodyLocation> {
+    let response = db.get_http_response(response_id)?;
+
+    Ok(ResponseBodyLocation {
+        path: response.body_path.map(PathBuf::from),
+        content_type: response
+            .headers
+            .iter()
+            .find(|h| h.name.eq_ignore_ascii_case("content-type"))
+            .map(|h| h.value.clone())
+            .unwrap_or_default(),
+    })
+}
+
+pub async fn cmd_get_http_response_events<H: Host>(
+    host: H,
+    req: CmdGetHttpResponseEventsReq,
+) -> Result<Vec<HttpResponseEvent>> {
+    let events: Vec<HttpResponseEvent> = host.db().list_http_response_events(&req.response_id)?;
+    Ok(events)
+}
+
+/// The body's path on this machine, for the desktop host to read or hand to the
+/// webview's asset protocol.
+///
+/// The frontend holds response ids; only `packages/platform`'s Tauri host sees
+/// the path, and only because it is about to open the file itself. Hosts
+/// without a filesystem serve the same bytes over HTTP instead.
+pub async fn cmd_http_response_body_path<H: Host>(
+    host: H,
+    req: CmdHttpResponseBodyPathReq,
+) -> Result<Option<String>> {
+    let location = locate_response_body(&host.db(), &req.response_id)?;
+    Ok(location.path.map(|p| p.to_string_lossy().to_string()))
+}
+
+pub async fn cmd_http_request_body<H: Host>(
+    host: H,
+    req: CmdHttpRequestBodyReq,
+) -> Result<Option<Vec<u8>>> {
+    let body_id = format!("{}.request", req.response_id);
+    let chunks = host.blobs().get_chunks(&body_id)?;
+
+    if chunks.is_empty() {
+        return Ok(None);
+    }
+
+    // Concatenate all chunks
+    let body: Vec<u8> = chunks.into_iter().flat_map(|c| c.data).collect();
+    Ok(Some(body))
+}
+
+pub async fn cmd_save_response<H: Host>(host: H, req: CmdSaveResponseReq) -> Result<()> {
+    let response = host.db().get_http_response(&req.response_id)?;
+
+    let body_path =
+        response.body_path.ok_or(Error::Generic("Response does not have a body".to_string()))?;
+    fs::copy(body_path, &req.filepath).map_err(|e| Error::Generic(e.to_string()))?;
+
+    Ok(())
+}
@@ -0,0 +1,237 @@
+//! A host that is nothing but the trait: a temp database, a fixed client id,
+//! a fixed session. It exists to prove that the handlers really do run without
+//! a desktop around them, and that the client's identity reaches the writes.
+//!
+//! Neither host here has a plugin runtime — no `PluginManager`, no sidecar.
+//! `TestHost` implements `Host` alone, so a handler that reaches for plugins
+//! would not compile against it. `SingleThreadedHost` goes further and answers
+//! `PluginHost` too, without one, which is only possible because that trait
+//! names operations rather than handing back a manager.
+
+use std::rc::Rc;
+use std::sync::{Arc, Mutex};
+use tempfile::TempDir;
+use yaak_commands::models::{
+    cmd_default_headers, cmd_get_workspace_meta, models_delete, models_upsert,
+    models_workspace_models,
+};
+use yaak_commands::{Host, PluginHost};
+use yaak_core::WorkspaceContext;
+use yaak_crypto::manager::EncryptionManager;
+use yaak_models::blob_manager::BlobManager;
+use yaak_models::models::{AnyModel, Plugin, Workspace};
+use yaak_models::query_manager::QueryManager;
+use yaak_models::util::{ModelPayload, UpdateSource};
+use yaak_plugins::plugin_meta::PluginMetadata;
+use yaak_rpc_schema::{
+    CmdDefaultHeadersReq, CmdGetWorkspaceMetaReq, ModelsDeleteReq, ModelsUpsertReq,
+    ModelsWorkspaceModelsReq,
+};
+
+#[derive(Clone)]
+struct TestHost {
+    inner: Arc<Inner>,
+}
+
+struct Inner {
+    _dir: TempDir,
+    query_manager: QueryManager,
+    blob_manager: BlobManager,
+    encryption_manager: EncryptionManager,
+    /// Every model write the database reported, so a test can check who it
+    /// says made them.
+    writes: Mutex<Vec<ModelPayload>>,
+    rx: Mutex<std::sync::mpsc::Receiver<ModelPayload>>,
+}
+
+impl TestHost {
+    fn new() -> Self {
+        let dir = TempDir::new().expect("temp dir");
+        let (query_manager, blob_manager, rx) = yaak_models::init_standalone(
+            dir.path().join("db.sqlite"),
+            dir.path().join("blobs.sqlite"),
+        )
+        .expect("init db");
+        let encryption_manager = EncryptionManager::new(query_manager.clone(), "app.yaak.test");
+        Self {
+            inner: Arc::new(Inner {
+                _dir: dir,
+                query_manager,
+                blob_manager,
+                encryption_manager,
+                writes: Mutex::new(Vec::new()),
+                rx: Mutex::new(rx),
+            }),
+        }
+    }
+
+    fn drain_writes(&self) -> Vec<ModelPayload> {
+        let rx = self.inner.rx.lock().unwrap();
+        let mut writes = self.inner.writes.lock().unwrap();
+        while let Ok(payload) = rx.try_recv() {
+            writes.push(payload);
+        }
+        writes.drain(..).collect()
+    }
+}
+
+impl Host for TestHost {
+    fn client_id(&self) -> &str {
+        "test-client"
+    }
+
+    fn session(&self) -> WorkspaceContext {
+        WorkspaceContext::new().with_workspace("wk_test")
+    }
+
+    fn app_version(&self) -> String {
+        "0.0.0-test".to_string()
+    }
+
+    fn query_manager(&self) -> &QueryManager {
+        &self.inner.query_manager
+    }
+
+    fn blob_manager(&self) -> &BlobManager {
+        &self.inner.blob_manager
+    }
+
+    fn encryption_manager(&self) -> &EncryptionManager {
+        &self.inner.encryption_manager
+    }
+}
+
+#[tokio::test(flavor = "multi_thread")]
+async fn writes_carry_the_client_id() {
+    let host = TestHost::new();
+
+    let workspace = Workspace { name: "From a test".to_string(), ..Default::default() };
+    let id = models_upsert(host.clone(), ModelsUpsertReq { model: AnyModel::Workspace(workspace) })
+        .await
+        .expect("upsert");
+    assert!(id.starts_with("wk_"), "unexpected id {id}");
+
+    let writes = host.drain_writes();
+    assert_eq!(writes.len(), 1);
+    assert!(
+        matches!(&writes[0].update_source, UpdateSource::Window { label } if label == "test-client"),
+        "the write should be attributed to the calling client, got {:?}",
+        writes[0].update_source,
+    );
+
+    let meta =
+        cmd_get_workspace_meta(host.clone(), CmdGetWorkspaceMetaReq { workspace_id: id.clone() })
+            .await
+            .expect("workspace meta");
+    assert_eq!(meta.workspace_id, id);
+
+    // Deletes cascade inside a transaction; make sure that path works with no
+    // host doing anything special around it.
+    let workspace = host.db().get_workspace(&id).expect("get workspace");
+    let deleted =
+        models_delete(host.clone(), ModelsDeleteReq { model: AnyModel::Workspace(workspace) })
+            .await
+            .expect("delete");
+    assert_eq!(deleted, id);
+    assert!(host.db().get_workspace(&id).is_err(), "workspace should be gone");
+}
+
+#[tokio::test]
+async fn host_free_handlers_need_no_state() {
+    let host = TestHost::new();
+    let headers = cmd_default_headers(host, CmdDefaultHeadersReq {}).await.expect("headers");
+    assert!(!headers.is_empty());
+}
+
+/// A host that is deliberately **not** `Send` or `Sync`: it keeps its state in
+/// an `Rc`, the way a single-threaded browser host has to, since
+/// `rusqlite::Connection` is not `Sync` to begin with. It also has no plugin
+/// runtime of any kind — no `PluginManager`, no sidecar, nothing to spawn.
+///
+/// Nothing here asserts much at runtime; the test is largely that it compiles.
+/// A `Host` demanding thread-safety, or a `PluginHost` handing back a
+/// `&PluginManager`, would shut such a host out of the traits entirely and this
+/// file would stop building.
+#[derive(Clone)]
+struct SingleThreadedHost {
+    inner: Rc<Inner>,
+}
+
+impl Host for SingleThreadedHost {
+    fn client_id(&self) -> &str {
+        "tab-1"
+    }
+
+    fn session(&self) -> WorkspaceContext {
+        WorkspaceContext::new()
+    }
+
+    fn app_version(&self) -> String {
+        "0.0.0-web".to_string()
+    }
+
+    fn query_manager(&self) -> &QueryManager {
+        &self.inner.query_manager
+    }
+
+    fn blob_manager(&self) -> &BlobManager {
+        &self.inner.blob_manager
+    }
+
+    fn encryption_manager(&self) -> &EncryptionManager {
+        &self.inner.encryption_manager
+    }
+}
+
+/// Answering plugin questions with no plugin runtime behind them. A browser
+/// host would put a `postMessage` round-trip to its Worker where these return
+/// constants; the shape of the trait is what makes either possible.
+impl PluginHost for SingleThreadedHost {
+    async fn loaded_plugin_metadata(&self, _directory: &str) -> Option<PluginMetadata> {
+        None
+    }
+
+    async fn take_plugin_init_errors(&self) -> Vec<(String, String)> {
+        Vec::new()
+    }
+
+    async fn resolve_plugins(&self, plugins: Vec<Plugin>) -> Vec<Plugin> {
+        // No runtime to enrich them with; the database rows are still the truth
+        // about what is installed.
+        plugins
+    }
+
+    async fn encrypt_secure_template(&self, _template: &str) -> yaak_commands::Result<String> {
+        Err(yaak_commands::Error::Generic("no plugin runtime on this host".into()))
+    }
+}
+
+#[tokio::test]
+async fn a_single_threaded_host_can_implement_the_trait() {
+    let TestHost { inner } = TestHost::new();
+    let host = SingleThreadedHost { inner: Rc::new(Arc::into_inner(inner).expect("sole owner")) };
+
+    let workspace = Workspace { name: "From one thread".to_string(), ..Default::default() };
+    let id = models_upsert(host.clone(), ModelsUpsertReq { model: AnyModel::Workspace(workspace) })
+        .await
+        .expect("upsert");
+
+    // A `PluginHost` command, on a host with no plugin runtime at all. This is
+    // the one that could not be written when the trait handed back a
+    // `&PluginManager`.
+    let json = models_workspace_models(
+        host.clone(),
+        ModelsWorkspaceModelsReq { workspace_id: Some(id.clone()) },
+    )
+    .await
+    .expect("workspace models");
+    assert!(json.contains(&id), "the workspace should be in its own bootstrap payload");
+
+    // The delete path too, since it is the one that used to reach for a
+    // blocking thread this host does not have.
+    let workspace = host.db().get_workspace(&id).expect("get workspace");
+    let deleted = models_delete(host, ModelsDeleteReq { model: AnyModel::Workspace(workspace) })
+        .await
+        .expect("delete");
+    assert_eq!(deleted, id);
+}
@@ -1,5 +1,3 @@
-use std::path::PathBuf;
-
 /// Context for a workspace operation.
 ///
 /// In Tauri, this is extracted from the WebviewWindow URL.
@@ -37,20 +35,3 @@ impl WorkspaceContext {
        self
    }
 }
-
-/// Application context trait for accessing app-level resources.
-///
-/// This abstracts over Tauri's `AppHandle` for path resolution and app identity.
-/// Implemented by Tauri's AppHandle and by CLI's own context struct.
-pub trait AppContext: Send + Sync + Clone {
-    /// Returns the path to the application data directory.
-    /// This is where the database and other persistent data are stored.
-    fn app_data_dir(&self) -> PathBuf;
-
-    /// Returns the application identifier (e.g., "app.yaak.desktop").
-    /// Used for keyring access and other platform-specific features.
-    fn app_identifier(&self) -> &str;
-
-    /// Returns true if running in development mode.
-    fn is_dev(&self) -> bool;
-}
@@ -6,5 +6,5 @@
 mod context;
 mod error;

-pub use context::{AppContext, WorkspaceContext};
+pub use context::WorkspaceContext;
 pub use error::{Error, Result};
@@ -4,7 +4,9 @@ use log::{debug, info, warn};
 use reqwest::{Client, ClientBuilder, Proxy, redirect};
 use std::sync::{Arc, Mutex};
 use yaak_models::models::DnsOverride;
-use yaak_tls::{ClientCertificateConfig, get_tls_config, load_client_identity_pkcs12};
+use yaak_tls::{
+    ClientCertificateConfig, NativeClientIdentity, get_tls_config, load_native_client_identity,
+};

 pub const HTTP2_MAX_RESPONSE_HEADER_LIST_SIZE: u32 = 1024 * 1024;

@@ -61,12 +63,19 @@ static IDENTITY_IMPORT: Mutex<()> = Mutex::new(());
 fn build_native_tls_identity(
    client_cert: Option<ClientCertificateConfig>,
 ) -> Result<Option<native_tls::Identity>> {
-    let Some((pkcs12, password)) = load_client_identity_pkcs12(client_cert)? else {
+    let Some(material) = load_native_client_identity(client_cert)? else {
        return Ok(None);
    };

    let _guard = IDENTITY_IMPORT.lock().unwrap_or_else(|e| e.into_inner());
-    Ok(Some(native_tls::Identity::from_pkcs12(&pkcs12, &password)?))
+    Ok(Some(match material {
+        NativeClientIdentity::Pkcs12 { data, password } => {
+            native_tls::Identity::from_pkcs12(&data, &password)?
+        }
+        NativeClientIdentity::Pkcs8 { chain_pem, key_pem } => {
+            native_tls::Identity::from_pkcs8(&chain_pem, &key_pem)?
+        }
+    }))
 }

 #[derive(Clone)]
@@ -11,11 +11,9 @@ hex = { workspace = true }
 include_dir = "0.7"
 log = { workspace = true }
 nanoid = "0.4.0"
-r2d2 = "0.8.10"
-r2d2_sqlite = { version = "0.25.0" }
-rusqlite = { version = "0.32.1", features = ["bundled", "chrono"] }
-sea-query = { version = "0.32.1", features = ["with-chrono", "attr"] }
-sea-query-rusqlite = { version = "0.7.0", features = ["with-chrono"] }
+rusqlite = { version = "0.38", features = ["bundled", "chrono"] }
+sea-query = { version = "1.0", features = ["with-chrono", "attr"] }
+sea-query-rusqlite = { version = "0.8.0", features = ["with-chrono"] }
 serde = { workspace = true, features = ["derive"] }
 serde_json = { workspace = true }
 schemars = { workspace = true }
@@ -23,3 +21,7 @@ sha2 = { workspace = true }
 thiserror = { workspace = true }
 ts-rs = { workspace = true, features = ["chrono-impl", "serde-json-impl"] }
 yaak-core = { workspace = true }
+
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
+r2d2 = "0.8.10"
+r2d2_sqlite = { version = "0.32" }
@@ -2,9 +2,8 @@ use crate::error::Result;
 use crate::util::generate_prefixed_id;
 use include_dir::{Dir, include_dir};
 use log::{debug, info};
-use r2d2::Pool;
-use r2d2_sqlite::SqliteConnectionManager;
 use rusqlite::{OptionalExtension, params};
+use yaak_database::{SqliteConn, SqlitePool};

 static BLOB_MIGRATIONS_DIR: Dir = include_dir!("$CARGO_MANIFEST_DIR/blob_migrations");

@@ -29,11 +28,11 @@ impl BodyChunk {
 // whole app whenever the pool is exhausted.
 #[derive(Debug, Clone)]
 pub struct BlobManager {
-    pool: Pool<SqliteConnectionManager>,
+    pool: SqlitePool,
 }

 impl BlobManager {
-    pub fn new(pool: Pool<SqliteConnectionManager>) -> Self {
+    pub fn new(pool: SqlitePool) -> Self {
        Self { pool }
    }

@@ -45,7 +44,7 @@ impl BlobManager {

 /// Context for blob database operations.
 pub struct BlobContext {
-    conn: r2d2::PooledConnection<SqliteConnectionManager>,
+    conn: SqliteConn,
 }

 impl BlobContext {
@@ -131,7 +130,7 @@ impl BlobContext {
 }

 /// Run migrations for the blob database.
-pub fn migrate_blob_db(pool: &Pool<SqliteConnectionManager>) -> Result<()> {
+pub fn migrate_blob_db(pool: &SqlitePool) -> Result<()> {
    info!("Running blob database migrations");

    // Create migrations tracking table
@@ -198,9 +197,9 @@ pub fn migrate_blob_db(pool: &Pool<SqliteConnectionManager>) -> Result<()> {
 mod tests {
    use super::*;

-    fn create_test_pool() -> Pool<SqliteConnectionManager> {
-        let manager = SqliteConnectionManager::memory();
-        let pool = Pool::builder().max_size(1).build(manager).unwrap();
+    fn create_test_pool() -> SqlitePool {
+        let manager = r2d2_sqlite::SqliteConnectionManager::memory();
+        let pool = r2d2::Pool::builder().max_size(1).build(manager).unwrap();
        migrate_blob_db(&pool).unwrap();
        pool
    }
@@ -7,7 +7,7 @@ pub enum Error {
    SqlError(#[from] rusqlite::Error),

    #[error("SQL Pool error: {0}")]
-    SqlPoolError(#[from] r2d2::Error),
+    SqlPoolError(#[from] yaak_database::PoolError),

    #[error("Database error: {0}")]
    Database(String),
@@ -1,15 +1,12 @@
 use crate::blob_manager::{BlobManager, migrate_blob_db};
-use crate::error::{Error, Result};
+use crate::error::Result;
 use crate::migrate::migrate_db;
 use crate::query_manager::QueryManager;
 use crate::util::ModelPayload;
 use log::info;
-use r2d2::Pool;
-use r2d2_sqlite::SqliteConnectionManager;
-use std::fs::create_dir_all;
-use std::path::{Path, PathBuf};
+use std::path::Path;
 use std::sync::mpsc;
-use std::time::Duration;
+use yaak_database::SqlitePool;

 pub mod blob_manager;
 pub mod client_db;
@@ -17,22 +14,85 @@ mod connection_or_tx;
 pub mod error;
 pub mod migrate;
 pub mod models;
+pub mod models_ops;
 pub mod queries;
 pub mod query_manager;
 pub mod render;
 pub mod util;

-fn sqlite_file_manager(path: impl Into<PathBuf>) -> SqliteConnectionManager {
-    SqliteConnectionManager::file(path.into()).with_init(|conn| {
-        conn.pragma_update(None, "journal_mode", "WAL")?;
-        conn.pragma_update(None, "synchronous", "NORMAL")?;
-        conn.busy_timeout(Duration::from_millis(5000))
-    })
+/// Per-connection setup, applied by every pool on every connection it opens.
+fn init_connection(conn: &rusqlite::Connection) -> rusqlite::Result<()> {
+    conn.busy_timeout(std::time::Duration::from_millis(5000))
 }

-fn sqlite_memory_manager() -> SqliteConnectionManager {
-    SqliteConnectionManager::memory()
-        .with_init(|conn| conn.busy_timeout(Duration::from_millis(5000)))
+#[cfg(not(target_arch = "wasm32"))]
+fn init_file_connection(conn: &rusqlite::Connection) -> rusqlite::Result<()> {
+    conn.pragma_update(None, "journal_mode", "WAL")?;
+    conn.pragma_update(None, "synchronous", "NORMAL")?;
+    init_connection(conn)
+}
+
+/// The two ways a pool comes to exist, one per target.
+///
+/// On the desktop and CLI, an r2d2 pool over a file. In a browser, a single
+/// connection over whatever VFS the host registered before calling in — the
+/// path is a name inside that VFS, not a place on disk. Everything downstream
+/// of `SqlitePool` is target-agnostic; this is the only fork.
+#[cfg(not(target_arch = "wasm32"))]
+mod open {
+    use super::*;
+    use crate::error::Error;
+    use r2d2::Pool;
+    use r2d2_sqlite::SqliteConnectionManager;
+    use std::path::PathBuf;
+    use std::time::Duration;
+
+    pub fn file_pool(path: impl Into<PathBuf>, max_size: u32, min_idle: u32) -> Result<SqlitePool> {
+        let path: PathBuf = path.into();
+        // Create parent directories if needed
+        if let Some(parent) = path.parent() {
+            std::fs::create_dir_all(parent)?;
+        }
+        let manager = SqliteConnectionManager::file(path).with_init(|c| init_file_connection(c));
+        Pool::builder()
+            .max_size(max_size)
+            .min_idle(Some(min_idle))
+            .connection_timeout(Duration::from_secs(10))
+            .build(manager)
+            .map_err(|e| Error::Database(e.to_string()))
+    }
+
+    pub fn memory_pool() -> Result<SqlitePool> {
+        let manager = SqliteConnectionManager::memory().with_init(|c| init_connection(c));
+        // In-memory DB doesn't support multiple connections
+        Pool::builder().max_size(1).build(manager).map_err(|e| Error::Database(e.to_string()))
+    }
+}
+
+#[cfg(target_arch = "wasm32")]
+mod open {
+    use super::*;
+    use rusqlite::Connection;
+    use std::path::PathBuf;
+
+    pub fn file_pool(
+        path: impl Into<PathBuf>,
+        _max_size: u32,
+        _min_idle: u32,
+    ) -> Result<SqlitePool> {
+        // No WAL: the browser VFSs are single-connection and journal their own
+        // way; the pragma is accepted and ignored on some and rejected on
+        // others, so it is not applied at all here.
+        let conn = Connection::open(path.into())?;
+        init_connection(&conn)?;
+        Ok(SqlitePool::single(conn))
+    }
+
+    pub fn memory_pool() -> Result<SqlitePool> {
+        let conn = Connection::open_in_memory()?;
+        init_connection(&conn)?;
+        Ok(SqlitePool::single(conn))
+    }
 }

 /// Initialize the database managers for standalone (non-Tauri) usage.
@@ -46,40 +106,16 @@ pub fn init_standalone(
    let db_path = db_path.as_ref();
    let blob_path = blob_path.as_ref();

-    // Create parent directories if needed
-    if let Some(parent) = db_path.parent() {
-        create_dir_all(parent)?;
-    }
-    if let Some(parent) = blob_path.parent() {
-        create_dir_all(parent)?;
-    }
-
    // Main database pool. Sized for concurrent in-flight queries, not concurrent app
    // features — connections are held per-statement, so even heavy fan-out (e.g. many
    // gRPC streams) only needs a handful at once. Keep max_size modest: WAL connections
    // hold ~3 file descriptors each, and macOS GUI apps get a 256 fd soft limit.
    info!("Initializing app database {db_path:?}");
-    let manager = sqlite_file_manager(db_path);
-    let pool = Pool::builder()
-        .max_size(20)
-        .min_idle(Some(2))
-        .connection_timeout(Duration::from_secs(10))
-        .build(manager)
-        .map_err(|e| Error::Database(e.to_string()))?;
-
+    let pool = open::file_pool(db_path, 20, 2)?;
    migrate_db(&pool)?;

    info!("Initializing blobs database {blob_path:?}");
-
-    // Blob database pool
-    let blob_manager = sqlite_file_manager(blob_path);
-    let blob_pool = Pool::builder()
-        .max_size(10)
-        .min_idle(Some(1))
-        .connection_timeout(Duration::from_secs(10))
-        .build(blob_manager)
-        .map_err(|e| Error::Database(e.to_string()))?;
-
+    let blob_pool = open::file_pool(blob_path, 10, 1)?;
    migrate_blob_db(&blob_pool)?;

    let (tx, rx) = mpsc::channel();
@@ -92,22 +128,10 @@ pub fn init_standalone(
 /// Initialize the database managers with in-memory SQLite databases.
 /// Useful for testing and CI environments.
 pub fn init_in_memory() -> Result<(QueryManager, BlobManager, mpsc::Receiver<ModelPayload>)> {
-    // Main database pool
-    let manager = sqlite_memory_manager();
-    let pool = Pool::builder()
-        .max_size(1) // In-memory DB doesn't support multiple connections
-        .build(manager)
-        .map_err(|e| Error::Database(e.to_string()))?;
-
+    let pool = open::memory_pool()?;
    migrate_db(&pool)?;

-    // Blob database pool
-    let blob_manager = sqlite_memory_manager();
-    let blob_pool = Pool::builder()
-        .max_size(1)
-        .build(blob_manager)
-        .map_err(|e| Error::Database(e.to_string()))?;
-
+    let blob_pool = open::memory_pool()?;
    migrate_blob_db(&blob_pool)?;

    let (tx, rx) = mpsc::channel();
@@ -2,14 +2,13 @@ use crate::error::Error::MigrationError;
 use crate::error::Result;
 use include_dir::{Dir, DirEntry, include_dir};
 use log::{debug, info};
-use r2d2::Pool;
-use r2d2_sqlite::SqliteConnectionManager;
-use rusqlite::{OptionalExtension, TransactionBehavior, params};
+use rusqlite::{OptionalExtension, Transaction, TransactionBehavior, params};
 use sha2::{Digest, Sha384};
+use yaak_database::SqlitePool;

 static MIGRATIONS_DIR: Dir = include_dir!("$CARGO_MANIFEST_DIR/migrations");

-pub fn migrate_db(pool: &Pool<SqliteConnectionManager>) -> Result<()> {
+pub fn migrate_db(pool: &SqlitePool) -> Result<()> {
    info!("Running database migrations");

    // Ensure the table exists
@@ -43,8 +42,10 @@ pub fn migrate_db(pool: &Pool<SqliteConnectionManager>) -> Result<()> {
    let mut ran_migrations = 0;
    for entry in entries {
        num_migrations += 1;
-        let mut conn = pool.get()?;
-        let mut tx = conn.transaction_with_behavior(TransactionBehavior::Immediate)?;
+        let conn = pool.get()?;
+        // `new_unchecked` takes `&Connection`; see yaak_database::pool for why
+        // the pool never hands out `&mut`.
+        let mut tx = Transaction::new_unchecked(&conn, TransactionBehavior::Immediate)?;
        match run_migration(entry, &mut tx) {
            Ok(ran) => {
                if ran {
@@ -74,7 +75,7 @@ pub fn migrate_db(pool: &Pool<SqliteConnectionManager>) -> Result<()> {
 }

 fn run_migration(migration_path: &DirEntry, tx: &mut rusqlite::Transaction) -> Result<bool> {
-    let start = std::time::Instant::now();
+    let start = elapsed_timer();
    let (version, description) = split_migration_filename(migration_path.path().to_str().unwrap())
        .expect("Failed to parse migration filename");

@@ -97,7 +98,7 @@ fn run_migration(migration_path: &DirEntry, tx: &mut rusqlite::Transaction) -> R
    // Split on `;`? → optional depending on how your SQL is structured
    tx.execute_batch(&sql)?;

-    let execution_time = start.elapsed().as_nanos() as i64;
+    let execution_time = start();
    let checksum = sha384_hex_prefixed(sql.as_bytes());

    // NOTE: The success column is never used. It's just there for sqlx compatibility.
@@ -109,6 +110,21 @@ fn run_migration(migration_path: &DirEntry, tx: &mut rusqlite::Transaction) -> R
    Ok(true)
 }

+/// Nanoseconds since the timer was started, for the sqlx-compatible
+/// `execution_time` column. `Instant` does not exist on `wasm32-unknown-unknown`
+/// (there is no monotonic clock to ask), and the column is bookkeeping, so
+/// there it reads as zero rather than taking the migrator down with it.
+#[cfg(not(target_arch = "wasm32"))]
+fn elapsed_timer() -> impl Fn() -> i64 {
+    let start = std::time::Instant::now();
+    move || start.elapsed().as_nanos() as i64
+}
+
+#[cfg(target_arch = "wasm32")]
+fn elapsed_timer() -> impl Fn() -> i64 {
+    || 0
+}
+
 fn split_migration_filename(filename: &str) -> Option<(String, String)> {
    // Remove the .sql extension
    let trimmed = filename.strip_suffix(".sql")?;
@@ -0,0 +1,89 @@
+//! Generic model writes, shared by every host.
+//!
+//! `upsert`, `delete` and `duplicate` take an `AnyModel` and fan out to the
+//! typed query for its variant. That fan-out is long, mechanical, and has to
+//! grow a new arm every time a model is added — exactly the code that should
+//! not exist twice. The host supplies the database handles and the
+//! `UpdateSource` identifying who is writing; nothing here knows whether the
+//! caller is a desktop window or an HTTP request.
+
+use crate::blob_manager::BlobManager;
+use crate::client_db::ClientDb;
+use crate::error::Error::GenericError;
+use crate::error::Result;
+use crate::models::AnyModel;
+use crate::util::UpdateSource;
+
+pub fn upsert_model(
+    db: &ClientDb,
+    blobs: &BlobManager,
+    model: AnyModel,
+    source: &UpdateSource,
+) -> Result<String> {
+    let id = match model {
+        AnyModel::CookieJar(m) => db.upsert_cookie_jar(&m, source)?.id,
+        AnyModel::Environment(m) => db.upsert_environment(&m, source)?.id,
+        AnyModel::Folder(m) => db.upsert_folder(&m, source)?.id,
+        AnyModel::GrpcRequest(m) => db.upsert_grpc_request(&m, source)?.id,
+        AnyModel::HttpRequest(m) => db.upsert_http_request(&m, source)?.id,
+        AnyModel::HttpResponse(m) => db.upsert_http_response(&m, source, blobs)?.id,
+        AnyModel::KeyValue(m) => db.upsert_key_value(&m, source)?.id,
+        AnyModel::Plugin(m) => db.upsert_plugin(&m, source)?.id,
+        AnyModel::Settings(m) => db.upsert_settings(&m, source)?.id,
+        AnyModel::WebsocketRequest(m) => db.upsert_websocket_request(&m, source)?.id,
+        AnyModel::Workspace(m) => db.upsert_workspace(&m, source)?.id,
+        AnyModel::WorkspaceMeta(m) => db.upsert_workspace_meta(&m, source)?.id,
+        a => return Err(GenericError(format!("Cannot upsert AnyModel {a:?})"))),
+    };
+
+    Ok(id)
+}
+
+/// Deletes cascade, so callers run this inside a transaction.
+pub fn delete_model(
+    tx: &ClientDb,
+    blobs: &BlobManager,
+    model: AnyModel,
+    source: &UpdateSource,
+) -> Result<String> {
+    let id = match model {
+        AnyModel::CookieJar(m) => tx.delete_cookie_jar(&m, source)?.id,
+        AnyModel::Environment(m) => tx.delete_environment(&m, source)?.id,
+        AnyModel::Folder(m) => tx.delete_folder(&m, source)?.id,
+        AnyModel::GrpcConnection(m) => tx.delete_grpc_connection(&m, source)?.id,
+        AnyModel::GrpcRequest(m) => tx.delete_grpc_request(&m, source)?.id,
+        AnyModel::HttpRequest(m) => tx.delete_http_request(&m, source)?.id,
+        AnyModel::HttpResponse(m) => tx.delete_http_response(&m, source, blobs)?.id,
+        AnyModel::Plugin(m) => tx.delete_plugin(&m, source)?.id,
+        AnyModel::WebsocketConnection(m) => tx.delete_websocket_connection(&m, source)?.id,
+        AnyModel::WebsocketRequest(m) => tx.delete_websocket_request(&m, source)?.id,
+        AnyModel::Workspace(m) => tx.delete_workspace(&m, source, blobs)?.id,
+        a => return Err(GenericError(format!("Cannot delete AnyModel {a:?})"))),
+    };
+
+    Ok(id)
+}
+
+/// Duplicates recurse, so callers run this inside a transaction.
+///
+/// The model is re-read from the database rather than taken from the caller, so
+/// a duplicate never comes from a stale frontend snapshot.
+pub fn duplicate_model(
+    tx: &ClientDb,
+    model_type: &str,
+    model_id: &str,
+    source: &UpdateSource,
+) -> Result<String> {
+    let id = match model_type {
+        "environment" => tx.duplicate_environment(&tx.get_environment(model_id)?, source)?.id,
+        "folder" => tx.duplicate_folder(&tx.get_folder(model_id)?, source)?.id,
+        "grpc_request" => tx.duplicate_grpc_request(&tx.get_grpc_request(model_id)?, source)?.id,
+        "http_request" => tx.duplicate_http_request(&tx.get_http_request(model_id)?, source)?.id,
+        "websocket_request" => {
+            tx.duplicate_websocket_request(&tx.get_websocket_request(model_id)?, source)?.id
+        }
+        t => return Err(GenericError(format!("Cannot duplicate model type {t}"))),
+    };
+
+    Ok(id)
+}
@@ -3,6 +3,7 @@ use crate::error::Result;
 use crate::models::{GraphQlIntrospection, GraphQlIntrospectionIden};
 use crate::util::UpdateSource;
 use chrono::{Duration, Utc};
+use sea_query::ExprTrait;
 use sea_query::{Expr, Query, SqliteQueryBuilder};
 use sea_query_rusqlite::RusqliteBinder;

@@ -4,6 +4,7 @@ use crate::models::{GrpcConnection, GrpcConnectionIden, GrpcConnectionState};
 use crate::queries::MAX_HISTORY_ITEMS;
 use crate::util::UpdateSource;
 use log::debug;
+use sea_query::ExprTrait;
 use sea_query::{Expr, Query, SqliteQueryBuilder};
 use sea_query_rusqlite::RusqliteBinder;

@@ -5,6 +5,7 @@ use crate::models::{HttpResponse, HttpResponseIden, HttpResponseState};
 use crate::queries::MAX_HISTORY_ITEMS;
 use crate::util::UpdateSource;
 use log::{debug, error};
+use sea_query::ExprTrait;
 use sea_query::{Expr, Query, SqliteQueryBuilder};
 use sea_query_rusqlite::RusqliteBinder;
 use std::fs;
@@ -4,6 +4,7 @@ use crate::models::{KeyValue, KeyValueIden, UpsertModelInfo};
 use crate::util::UpdateSource;
 use chrono::NaiveDateTime;
 use log::error;
+use sea_query::ExprTrait;
 use sea_query::{Asterisk, Cond, Expr, Query, SqliteQueryBuilder};
 use sea_query_rusqlite::RusqliteBinder;

@@ -1,6 +1,7 @@
 use crate::client_db::ClientDb;
 use crate::error::Result;
 use crate::models::{PluginKeyValue, PluginKeyValueIden};
+use sea_query::ExprTrait;
 use sea_query::Keyword::CurrentTimestamp;
 use sea_query::{Asterisk, Cond, Expr, OnConflict, Query, SqliteQueryBuilder};
 use sea_query_rusqlite::RusqliteBinder;
@@ -2,6 +2,7 @@ use crate::client_db::ClientDb;
 use crate::error::Result;
 use crate::models::{SyncState, SyncStateIden, UpsertModelInfo};
 use crate::util::UpdateSource;
+use sea_query::ExprTrait;
 use sea_query::{Asterisk, Cond, Expr, Query, SqliteQueryBuilder};
 use sea_query_rusqlite::RusqliteBinder;
 use std::path::Path;
@@ -4,6 +4,7 @@ use crate::models::{WebsocketConnection, WebsocketConnectionIden, WebsocketConne
 use crate::queries::MAX_HISTORY_ITEMS;
 use crate::util::UpdateSource;
 use log::debug;
+use sea_query::ExprTrait;
 use sea_query::{Expr, Query, SqliteQueryBuilder};
 use sea_query_rusqlite::RusqliteBinder;

@@ -1,23 +1,21 @@
 use crate::client_db::ClientDb;
 use crate::error::Error::GenericError;
 use crate::util::ModelPayload;
-use r2d2::Pool;
-use r2d2_sqlite::SqliteConnectionManager;
-use rusqlite::TransactionBehavior;
+use rusqlite::{Transaction, TransactionBehavior};
 use std::sync::mpsc;
-use yaak_database::{ConnectionOrTx, DbContext};
+use yaak_database::{ConnectionOrTx, DbContext, SqlitePool};

 // Pool is internally synchronized — don't wrap it in a Mutex. A Mutex held across the
 // blocking `get()` serializes every DB access behind the slowest waiter, freezing the
 // whole app whenever the pool is exhausted.
 #[derive(Debug, Clone)]
 pub struct QueryManager {
-    pool: Pool<SqliteConnectionManager>,
+    pool: SqlitePool,
    events_tx: mpsc::Sender<ModelPayload>,
 }

 impl QueryManager {
-    pub fn new(pool: Pool<SqliteConnectionManager>, events_tx: mpsc::Sender<ModelPayload>) -> Self {
+    pub fn new(pool: SqlitePool, events_tx: mpsc::Sender<ModelPayload>) -> Self {
        QueryManager { pool, events_tx }
    }

@@ -46,9 +44,10 @@ impl QueryManager {
    where
        E: From<crate::error::Error>,
    {
-        let mut conn = self.pool.get().expect("Failed to get new DB connection from the pool");
-        let tx = conn
-            .transaction_with_behavior(TransactionBehavior::Immediate)
+        let conn = self.pool.get().expect("Failed to get new DB connection from the pool");
+        // `new_unchecked` takes `&Connection`; see yaak_database::pool for why
+        // the pool never hands out `&mut`.
+        let tx = Transaction::new_unchecked(&conn, TransactionBehavior::Immediate)
            .expect("Failed to start DB transaction");

        let ctx = DbContext::new(ConnectionOrTx::Transaction(&tx));
@@ -171,6 +171,12 @@ pub enum InternalEventPayload {

    FindHttpResponsesRequest(FindHttpResponsesRequest),
    FindHttpResponsesResponse(FindHttpResponsesResponse),
+
+    GetHttpResponseBodyInfoRequest(GetHttpResponseBodyInfoRequest),
+    GetHttpResponseBodyInfoResponse(GetHttpResponseBodyInfoResponse),
+    ReadHttpResponseBodyChunkRequest(ReadHttpResponseBodyChunkRequest),
+    ReadHttpResponseBodyChunkResponse(ReadHttpResponseBodyChunkResponse),
+
    ListHttpRequestsRequest(ListHttpRequestsRequest),
    ListHttpRequestsResponse(ListHttpRequestsResponse),
    ListFoldersRequest(ListFoldersRequest),
@@ -288,6 +294,15 @@ pub struct SendHttpRequestRequest {
 #[ts(export, export_to = "gen_events.ts")]
 pub struct SendHttpRequestResponse {
    pub http_response: HttpResponse,
+
+    /// The body, base64, when the send saved nothing.
+    ///
+    /// A request with no id behind it produces a response the model store never
+    /// sees, so it cannot be read back by id later the way a saved one can.
+    /// This is the only copy of it. `None` means the body was stored and should
+    /// be read with `read_http_response_body_chunk_request`.
+    #[ts(optional = nullable)]
+    pub body: Option<String>,
 }

 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
@@ -1413,6 +1428,62 @@ pub struct FindHttpResponsesResponse {
    pub http_responses: Vec<HttpResponse>,
 }

+/// Ask what a response's body is, before deciding whether to pull it.
+///
+/// Bodies are addressed by response id and never by path, so where the host
+/// keeps the bytes is its own business.
+#[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
+#[serde(default, rename_all = "camelCase")]
+#[ts(export, export_to = "gen_events.ts")]
+pub struct GetHttpResponseBodyInfoRequest {
+    pub response_id: String,
+}
+
+#[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
+#[serde(default, rename_all = "camelCase")]
+#[ts(export, export_to = "gen_events.ts")]
+pub struct GetHttpResponseBodyInfoResponse {
+    /// How many bytes are actually stored, which is not necessarily what the
+    /// `Content-Length` header claimed. Zero when the response has no body.
+    #[ts(type = "number")]
+    pub content_length: u64,
+
+    /// The response's `Content-Type` header, verbatim, so the reader can pick a
+    /// charset.
+    #[ts(optional = nullable)]
+    pub content_type: Option<String>,
+}
+
+/// Pull one window of a response body.
+///
+/// Reads are idempotent: the bytes live in durable storage, so the same window
+/// can be asked for as many times as the plugin likes.
+#[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
+#[serde(default, rename_all = "camelCase")]
+#[ts(export, export_to = "gen_events.ts")]
+pub struct ReadHttpResponseBodyChunkRequest {
+    pub response_id: String,
+    #[ts(type = "number")]
+    pub offset: u64,
+    #[ts(type = "number")]
+    pub length: u64,
+}
+
+#[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
+#[serde(default, rename_all = "camelCase")]
+#[ts(export, export_to = "gen_events.ts")]
+pub struct ReadHttpResponseBodyChunkResponse {
+    /// Base64, because the desktop transport is a WebSocket that only sends
+    /// text frames today. A host that can carry binary sends the bytes as they
+    /// are and fills this in from them.
+    pub data: String,
+
+    /// Bytes decoded from `data`. Short of the requested length means the body
+    /// ended here.
+    #[ts(type = "number")]
+    pub length: u64,
+}
+
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
 #[ts(export, export_to = "gen_events.ts")]
@@ -1,5 +1,5 @@
 import { platform } from "@yaakapp-internal/platform";
-import type { WatchResult } from "@yaakapp-internal/tauri-client";
+import type { WatchResult } from "@yaakapp-internal/rpc-schema";
 import { SyncOp } from "./bindings/gen_sync";
 import { WatchEvent } from "./bindings/gen_watch";

@@ -7,6 +7,7 @@ publish = false
 [dependencies]
 log = { workspace = true }
 p12 = "0.6.3"
+pem = "3"
 rustls = { workspace = true, default-features = false, features = ["ring"] }
 rustls-pemfile = "2"
 rustls-platform-verifier = { workspace = true }
@@ -18,7 +18,7 @@ pub mod error;
 const OID_RSA_ENCRYPTION: &[u64] = &[1, 2, 840, 113549, 1, 1, 1];
 const OID_EC_PUBLIC_KEY: &[u64] = &[1, 2, 840, 10045, 2, 1];

-/// Password for the PKCS#12 blob [`load_client_identity_pkcs12`] builds from PEM
+/// Password for the PKCS#12 blob [`load_native_client_identity`] builds from PEM
 /// files. The blob never leaves the process, so the value only has to agree with
 /// the caller that immediately re-parses it.
 const IN_MEMORY_PKCS12_PASSWORD: &str = "yaak";
@@ -107,16 +107,33 @@ fn load_client_cert(
    Ok(None)
 }

-/// Load the configured client certificate as PKCS#12 DER, along with the
-/// password needed to open it.
+/// A client identity in one of the encodings a native TLS stack accepts.
+pub enum NativeClientIdentity {
+    /// A PKCS#12 archive, with the password needed to open it.
+    Pkcs12 { data: Vec<u8>, password: String },
+    /// A PEM certificate chain, leaf first, with a PKCS#8 PEM private key.
+    Pkcs8 {
+        chain_pem: Vec<u8>,
+        key_pem: Vec<u8>,
+    },
+}
+
+/// Whether the platform's native TLS stack should be handed PEM material as
+/// PKCS#12 rather than PKCS#8.
 ///
-/// Native TLS stacks accept a client identity as either PKCS#12 or a PKCS#8
-/// PEM, and the PKCS#8 route rejects EC keys on macOS outright. Going through
-/// PKCS#12 keeps the key formats we accept identical to the rustls path, which
-/// reads PKCS#1 and SEC1 keys directly.
-pub fn load_client_identity_pkcs12(
+/// Both encodings lose something. PKCS#8 is rejected for EC keys by Security
+/// Framework on macOS and by SChannel on Windows, which imports keys through an
+/// RSA-only provider. PKCS#12 as the `p12` crate emits it is encrypted with
+/// SHA1/40-bit-RC2 (certificates) and SHA1/3DES (key), and OpenSSL 3 moved RC2
+/// into the legacy provider, so on Linux it fails to decrypt what we just
+/// wrote. Each platform therefore gets the encoding its own stack can read.
+const NATIVE_TLS_WANTS_PKCS12: bool = cfg!(any(target_vendor = "apple", target_os = "windows"));
+
+/// Load the configured client certificate in whichever encoding this platform's
+/// native TLS stack accepts.
+pub fn load_native_client_identity(
    client_cert: Option<ClientCertificateConfig>,
-) -> Result<Option<(Vec<u8>, String)>> {
+) -> Result<Option<NativeClientIdentity>> {
    let config = match client_cert {
        None => return Ok(None),
        Some(c) => c,
@@ -127,7 +144,10 @@ pub fn load_client_identity_pkcs12(
    if let Some(pfx_path) = &config.pfx_file {
        if !pfx_path.is_empty() {
            let data = fs::read(Path::new(pfx_path))?;
-            return Ok(Some((data, config.passphrase.clone().unwrap_or_default())));
+            return Ok(Some(NativeClientIdentity::Pkcs12 {
+                data,
+                password: config.passphrase.clone().unwrap_or_default(),
+            }));
        }
    }

@@ -136,13 +156,35 @@ pub fn load_client_identity_pkcs12(
    };

    let key_der = to_pkcs8_der(&key)?;
+
+    if !NATIVE_TLS_WANTS_PKCS12 {
+        return Ok(Some(to_pkcs8_identity(&certs, &key_der)));
+    }
+
    let (leaf, cas) = certs.split_first().ok_or(GenericError("No certificates found".into()))?;
    let cas: Vec<&[u8]> = cas.iter().map(|c| c.as_ref()).collect();

    let pfx = p12::PFX::new_with_cas(leaf, &key_der, &cas, IN_MEMORY_PKCS12_PASSWORD, "yaak")
        .ok_or(GenericError("Failed to build PKCS#12 from client certificate".into()))?;

-    Ok(Some((pfx.to_der(), IN_MEMORY_PKCS12_PASSWORD.to_string())))
+    Ok(Some(NativeClientIdentity::Pkcs12 {
+        data: pfx.to_der(),
+        password: IN_MEMORY_PKCS12_PASSWORD.to_string(),
+    }))
+}
+
+/// Re-encode a certificate chain and PKCS#8 key as the PEM pair native-tls
+/// expects. It only recognises a key whose first line is the PKCS#8 header, so
+/// the key has to arrive already converted by [`to_pkcs8_der`].
+fn to_pkcs8_identity(certs: &[CertificateDer<'static>], key_der: &[u8]) -> NativeClientIdentity {
+    let config = pem::EncodeConfig::new().set_line_ending(pem::LineEnding::LF);
+    let chain: Vec<pem::Pem> =
+        certs.iter().map(|c| pem::Pem::new("CERTIFICATE", c.as_ref())).collect();
+
+    NativeClientIdentity::Pkcs8 {
+        chain_pem: pem::encode_many_config(&chain, config).into_bytes(),
+        key_pem: pem::encode_config(&pem::Pem::new("PRIVATE KEY", key_der), config).into_bytes(),
+    }
 }

 /// Re-encode a private key as PKCS#8 DER, wrapping PKCS#1 and SEC1 keys.
@@ -379,3 +421,79 @@ pub fn find_client_certificate(

    None
 }
+
+#[cfg(test)]
+mod pkcs8_identity_tests {
+    use super::*;
+
+    const EC_CRT: &str = r#"-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----"#;
+
+    const EC_SEC1_KEY: &str = r#"-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIIoiiZ/hb4h6eHkZUVBTQFz7KLrVKJqQtWee2ygOjijNoAoGCCqGSM49
+AwEHoUQDQgAEwmGCoc4BxGkWhrGFYyUqF76K6C/KntcnhANFbX8RczAYPvm5D0NJ
+wrTMhX70ELV1mCGpMc7FicoSPMD41I+kEg==
+-----END EC PRIVATE KEY-----"#;
+
+    const EC_PKCS8_KEY: &str = r#"-----BEGIN PRIVATE KEY-----
+MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgiiKJn+FviHp4eRlR
+UFNAXPsoutUompC1Z57bKA6OKM2hRANCAATCYYKhzgHEaRaGsYVjJSoXvoroL8qe
+1yeEA0VtfxFzMBg++bkPQ0nCtMyFfvQQtXWYIakxzsWJyhI8wPjUj6QS
+-----END PRIVATE KEY-----"#;
+
+    fn pkcs8_identity(crt: &str, key: &str) -> (Vec<u8>, Vec<u8>) {
+        let certs: Vec<CertificateDer<'static>> =
+            rustls_pemfile::certs(&mut BufReader::new(crt.as_bytes()))
+                .map(|c| c.unwrap())
+                .collect();
+        let key_der = to_pkcs8_der(&load_private_key(key.as_bytes()).unwrap()).unwrap();
+
+        match to_pkcs8_identity(&certs, &key_der) {
+            NativeClientIdentity::Pkcs8 { chain_pem, key_pem } => (chain_pem, key_pem),
+            NativeClientIdentity::Pkcs12 { .. } => unreachable!("asked for PKCS#8"),
+        }
+    }
+
+    /// native-tls matches the PKCS#8 header as a literal prefix and rejects the
+    /// key outright when it does not line up, so pin it on every platform even
+    /// though only the OpenSSL backend is handed this encoding.
+    #[test]
+    fn every_key_format_re_encodes_to_a_pkcs8_pem() {
+        for (name, key) in [("SEC1", EC_SEC1_KEY), ("PKCS#8", EC_PKCS8_KEY)] {
+            let (chain_pem, key_pem) = pkcs8_identity(EC_CRT, key);
+
+            assert!(
+                key_pem.starts_with(b"-----BEGIN PRIVATE KEY-----\n"),
+                "{name} key did not re-encode to a PKCS#8 PEM"
+            );
+
+            let round_tripped: Vec<CertificateDer<'static>> =
+                rustls_pemfile::certs(&mut BufReader::new(chain_pem.as_slice()))
+                    .map(|c| c.unwrap())
+                    .collect();
+            let original: Vec<CertificateDer<'static>> =
+                rustls_pemfile::certs(&mut BufReader::new(EC_CRT.as_bytes()))
+                    .map(|c| c.unwrap())
+                    .collect();
+            assert_eq!(round_tripped, original, "{name} chain did not round-trip");
+        }
+    }
+
+    /// The two on-disk spellings of one EC key have to converge, because only
+    /// the PKCS#8 one survives the re-encode.
+    #[test]
+    fn sec1_and_pkcs8_spellings_of_one_key_agree() {
+        let (_, from_sec1) = pkcs8_identity(EC_CRT, EC_SEC1_KEY);
+        let (_, from_pkcs8) = pkcs8_identity(EC_CRT, EC_PKCS8_KEY);
+        assert_eq!(from_sec1, from_pkcs8);
+    }
+}
@@ -0,0 +1,37 @@
+[package]
+name = "yaak-web"
+version = "0.1.0"
+edition = "2024"
+publish = false
+
+# The desktop's model layer, compiled for a browser tab. See src/lib.rs.
+#
+# Building needs a clang with a WebAssembly backend: sqlite-wasm-rs compiles
+# sqlite3.c to wasm at build time, and Apple's clang cannot target it. See
+# build-wasm.cjs, which points cc at Homebrew LLVM when it is present.
+
+[package.metadata.wasm-pack.profile.release]
+wasm-opt = false # Matches yaak-templates; wasm-opt has caused errors in CI
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+# The whole crate is `#![cfg(target_arch = "wasm32")]`: on a native target it
+# is empty, so a workspace-wide `cargo test` neither builds SQLite's wasm shim
+# for the host (which fails) nor links a browser-only runtime. Everything that
+# only exists for wasm is a target-scoped dependency for the same reason.
+
+[dependencies]
+log = { workspace = true }
+serde = { workspace = true, features = ["derive"] }
+serde_json = { workspace = true }
+yaak-models = { workspace = true }
+
+[target.'cfg(target_arch = "wasm32")'.dependencies]
+console_error_panic_hook = "0.1"
+js-sys = "0.3"
+serde-wasm-bindgen = "0.6.5"
+sqlite-wasm-rs = "0.5"
+sqlite-wasm-vfs = "0.2"
+wasm-bindgen = "0.2.100"
+wasm-bindgen-futures = "0.4"
@@ -0,0 +1,79 @@
+const { execSync, spawnSync } = require("node:child_process");
+const fs = require("node:fs");
+const os = require("node:os");
+const path = require("node:path");
+
+// Same shape as crates/yaak-templates/build-wasm.cjs, plus one wrinkle: this
+// crate links SQLite, and sqlite-wasm-rs compiles sqlite3.c to wasm at build
+// time. That needs a C compiler with a WebAssembly backend, which Apple's
+// clang is not. So the build looks for one, and when it finds none it keeps
+// the committed pkg/ and says so — desktop developers never need this crate
+// rebuilt, and failing their `npm run bootstrap` over it would be wrong.
+
+if (process.env.SKIP_WASM_BUILD === "1") {
+  console.log("Skipping wasm-pack build (SKIP_WASM_BUILD=1)");
+  return;
+}
+
+/** A clang that can emit wasm32, or null. */
+function findWasmClang() {
+  const candidates = [
+    process.env.CC_wasm32_unknown_unknown,
+    "/opt/homebrew/opt/llvm/bin/clang", // Homebrew LLVM, Apple Silicon
+    "/usr/local/opt/llvm/bin/clang", // Homebrew LLVM, Intel
+    "clang", // Linux distros' clang usually has the backend built in
+  ].filter(Boolean);
+
+  for (const clang of candidates) {
+    const probe = spawnSync(clang, ["--print-targets"], { encoding: "utf8" });
+    if (probe.status === 0 && /\bwasm32\b/.test(probe.stdout)) return clang;
+  }
+  return null;
+}
+
+const clang = findWasmClang();
+if (clang == null) {
+  console.log(
+    [
+      "yaak-web: no C compiler with a WebAssembly backend found; keeping the committed pkg/.",
+      "  To rebuild: install LLVM (macOS: `brew install llvm`) or point CC_wasm32_unknown_unknown at one.",
+    ].join("\n"),
+  );
+  return;
+}
+
+// llvm-ar lives next to clang in every LLVM distribution
+const ar = path.join(path.dirname(clang), "llvm-ar");
+
+// Remap machine-specific paths that rustc embeds into the binary (panic
+// location strings), so builds are reproducible across machines
+const sysroot = execSync("rustc --print sysroot").toString().trim();
+const cargoHome = process.env.CARGO_HOME ?? path.join(os.homedir(), ".cargo");
+
+execSync("wasm-pack build --target bundler", {
+  stdio: "inherit",
+  cwd: __dirname,
+  env: {
+    ...process.env,
+    CC_wasm32_unknown_unknown: clang,
+    AR_wasm32_unknown_unknown: fs.existsSync(ar) ? ar : (process.env.AR_wasm32_unknown_unknown ?? ""),
+    RUSTFLAGS: `--remap-path-prefix=${cargoHome}=/cargo --remap-path-prefix=${sysroot}=/rustc`,
+  },
+});
+
+// Rewrite the generated entry to use Vite's ?init import style instead of
+// the ES Module Integration style that wasm-pack generates, which Vite/rolldown
+// does not support in production builds.
+const entry = path.join(__dirname, "pkg", "yaak_web.js");
+fs.writeFileSync(
+  entry,
+  [
+    'import init from "./yaak_web_bg.wasm?init";',
+    'export * from "./yaak_web_bg.js";',
+    'import * as bg from "./yaak_web_bg.js";',
+    'const instance = await init({ "./yaak_web_bg.js": bg });',
+    "bg.__wbg_set_wasm(instance.exports);",
+    "instance.exports.__wbindgen_start();",
+    "",
+  ].join("\n"),
+);
@@ -0,0 +1,6 @@
+// The desktop's model layer, compiled to wasm for the browser. See src/lib.rs.
+//
+// This is loaded by the SharedWorker in packages/platform/src/web/worker.ts and
+// nowhere else: it owns a SQLite database, and there must be exactly one of it
+// per origin.
+export { blob_delete, blob_get, blob_put, boot, rpc } from "./pkg";
@@ -0,0 +1,15 @@
+{
+  "name": "@yaakapp-internal/web",
+  "version": "1.0.0",
+  "private": true,
+  "main": "index.ts",
+  "scripts": {
+    "bootstrap": "npm run build",
+    "build": "run-s build:*",
+    "build:pack": "node build-wasm.cjs",
+    "build:clean": "rimraf ./pkg/.gitignore"
+  },
+  "devDependencies": {
+    "rimraf": "^6.1.2"
+  }
+}
@@ -0,0 +1,17 @@
+{
+  "name": "yaak-web",
+  "type": "module",
+  "version": "0.1.0",
+  "files": [
+    "yaak_web_bg.wasm",
+    "yaak_web.js",
+    "yaak_web_bg.js",
+    "yaak_web.d.ts"
+  ],
+  "main": "yaak_web.js",
+  "types": "yaak_web.d.ts",
+  "sideEffects": [
+    "./yaak_web.js",
+    "./snippets/*"
+  ]
+}
@@ -0,0 +1,36 @@
+/* tslint:disable */
+/* eslint-disable */
+
+export function blob_delete(id: string): void;
+
+/**
+ * The bytes stored under an id, or none. Ids are the desktop's: a response's
+ * own id for its body, `{responseId}.request` for the request that produced
+ * it. Bytes cross to JS as a `Uint8Array` rather than through JSON.
+ */
+export function blob_get(id: string): Uint8Array | undefined;
+
+/**
+ * Store bytes under an id, replacing anything already there. Chunked the way
+ * the desktop chunks, so a body written here reads back on a desktop that
+ * imports the database, and vice versa.
+ */
+export function blob_put(id: string, bytes: Uint8Array): void;
+
+/**
+ * Register the IndexedDB-backed VFS and open the database.
+ *
+ * Migrations run inside `init_standalone`, exactly as they do for the CLI.
+ * Safe to call more than once; later calls are no-ops.
+ */
+export function boot(): Promise<void>;
+
+/**
+ * Run one command as `label` (the calling tab's identity, which stands in for
+ * the desktop's window label on every write it makes).
+ *
+ * The payload shapes match the `Cmd*Req` types in `yaak-rpc-schema` — that
+ * crate itself pulls the git, gRPC and plugin crates for their response types
+ * and cannot come to wasm, so the handful needed here are declared locally.
+ */
+export function rpc(cmd: string, payload: any, label: string): any;
@@ -0,0 +1,6 @@
+import init from "./yaak_web_bg.wasm?init";
+export * from "./yaak_web_bg.js";
+import * as bg from "./yaak_web_bg.js";
+const instance = await init({ "./yaak_web_bg.js": bg });
+bg.__wbg_set_wasm(instance.exports);
+instance.exports.__wbindgen_start();
@@ -0,0 +1,975 @@
+/**
+ * @param {string} id
+ */
+export function blob_delete(id) {
+    const ptr0 = passStringToWasm0(id, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+    const len0 = WASM_VECTOR_LEN;
+    const ret = wasm.blob_delete(ptr0, len0);
+    if (ret[1]) {
+        throw takeFromExternrefTable0(ret[0]);
+    }
+}
+
+/**
+ * The bytes stored under an id, or none. Ids are the desktop's: a response's
+ * own id for its body, `{responseId}.request` for the request that produced
+ * it. Bytes cross to JS as a `Uint8Array` rather than through JSON.
+ * @param {string} id
+ * @returns {Uint8Array | undefined}
+ */
+export function blob_get(id) {
+    const ptr0 = passStringToWasm0(id, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+    const len0 = WASM_VECTOR_LEN;
+    const ret = wasm.blob_get(ptr0, len0);
+    if (ret[3]) {
+        throw takeFromExternrefTable0(ret[2]);
+    }
+    let v2;
+    if (ret[0] !== 0) {
+        v2 = getArrayU8FromWasm0(ret[0], ret[1]).slice();
+        wasm.__wbindgen_free(ret[0], ret[1] * 1, 1);
+    }
+    return v2;
+}
+
+/**
+ * Store bytes under an id, replacing anything already there. Chunked the way
+ * the desktop chunks, so a body written here reads back on a desktop that
+ * imports the database, and vice versa.
+ * @param {string} id
+ * @param {Uint8Array} bytes
+ */
+export function blob_put(id, bytes) {
+    const ptr0 = passStringToWasm0(id, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+    const len0 = WASM_VECTOR_LEN;
+    const ptr1 = passArray8ToWasm0(bytes, wasm.__wbindgen_malloc);
+    const len1 = WASM_VECTOR_LEN;
+    const ret = wasm.blob_put(ptr0, len0, ptr1, len1);
+    if (ret[1]) {
+        throw takeFromExternrefTable0(ret[0]);
+    }
+}
+
+/**
+ * Register the IndexedDB-backed VFS and open the database.
+ *
+ * Migrations run inside `init_standalone`, exactly as they do for the CLI.
+ * Safe to call more than once; later calls are no-ops.
+ * @returns {Promise<void>}
+ */
+export function boot() {
+    const ret = wasm.boot();
+    return ret;
+}
+
+/**
+ * Run one command as `label` (the calling tab's identity, which stands in for
+ * the desktop's window label on every write it makes).
+ *
+ * The payload shapes match the `Cmd*Req` types in `yaak-rpc-schema` — that
+ * crate itself pulls the git, gRPC and plugin crates for their response types
+ * and cannot come to wasm, so the handful needed here are declared locally.
+ * @param {string} cmd
+ * @param {any} payload
+ * @param {string} label
+ * @returns {any}
+ */
+export function rpc(cmd, payload, label) {
+    const ptr0 = passStringToWasm0(cmd, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+    const len0 = WASM_VECTOR_LEN;
+    const ptr1 = passStringToWasm0(label, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+    const len1 = WASM_VECTOR_LEN;
+    const ret = wasm.rpc(ptr0, len0, payload, ptr1, len1);
+    if (ret[2]) {
+        throw takeFromExternrefTable0(ret[1]);
+    }
+    return takeFromExternrefTable0(ret[0]);
+}
+export function __wbg_Error_bce6d499ff0a4aff(arg0, arg1) {
+    const ret = Error(getStringFromWasm0(arg0, arg1));
+    return ret;
+}
+export function __wbg_String_8564e559799eccda(arg0, arg1) {
+    const ret = String(arg1);
+    const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+    const len1 = WASM_VECTOR_LEN;
+    getDataViewMemory0().setInt32(arg0 + 4 * 1, len1, true);
+    getDataViewMemory0().setInt32(arg0 + 4 * 0, ptr1, true);
+}
+export function __wbg_Window_70131fc0c91e4b3c(arg0) {
+    const ret = arg0.Window;
+    return ret;
+}
+export function __wbg_WorkerGlobalScope_601c48015b8cc78e(arg0) {
+    const ret = arg0.WorkerGlobalScope;
+    return ret;
+}
+export function __wbg___wbindgen_bigint_get_as_i64_410e28c7b761ad83(arg0, arg1) {
+    const v = arg1;
+    const ret = typeof(v) === 'bigint' ? v : undefined;
+    getDataViewMemory0().setBigInt64(arg0 + 8 * 1, isLikeNone(ret) ? BigInt(0) : ret, true);
+    getDataViewMemory0().setInt32(arg0 + 4 * 0, !isLikeNone(ret), true);
+}
+export function __wbg___wbindgen_boolean_get_2304fb8c853028c8(arg0) {
+    const v = arg0;
+    const ret = typeof(v) === 'boolean' ? v : undefined;
+    return isLikeNone(ret) ? 0xFFFFFF : ret ? 1 : 0;
+}
+export function __wbg___wbindgen_debug_string_edece8177ad01481(arg0, arg1) {
+    const ret = debugString(arg1);
+    const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+    const len1 = WASM_VECTOR_LEN;
+    getDataViewMemory0().setInt32(arg0 + 4 * 1, len1, true);
+    getDataViewMemory0().setInt32(arg0 + 4 * 0, ptr1, true);
+}
+export function __wbg___wbindgen_in_07056af4f902c445(arg0, arg1) {
+    const ret = arg0 in arg1;
+    return ret;
+}
+export function __wbg___wbindgen_is_bigint_aeae3893f30ed54e(arg0) {
+    const ret = typeof(arg0) === 'bigint';
+    return ret;
+}
+export function __wbg___wbindgen_is_function_5cd60d5cf78b4eef(arg0) {
+    const ret = typeof(arg0) === 'function';
+    return ret;
+}
+export function __wbg___wbindgen_is_null_2042690d351e14f0(arg0) {
+    const ret = arg0 === null;
+    return ret;
+}
+export function __wbg___wbindgen_is_object_b4593df85baada48(arg0) {
+    const val = arg0;
+    const ret = typeof(val) === 'object' && val !== null;
+    return ret;
+}
+export function __wbg___wbindgen_is_string_dde0fd9020db4434(arg0) {
+    const ret = typeof(arg0) === 'string';
+    return ret;
+}
+export function __wbg___wbindgen_is_undefined_35bb9f4c7fd651d5(arg0) {
+    const ret = arg0 === undefined;
+    return ret;
+}
+export function __wbg___wbindgen_jsval_eq_c0ed08b3e0f393b9(arg0, arg1) {
+    const ret = arg0 === arg1;
+    return ret;
+}
+export function __wbg___wbindgen_jsval_loose_eq_0ad77b7717db155c(arg0, arg1) {
+    const ret = arg0 == arg1;
+    return ret;
+}
+export function __wbg___wbindgen_number_get_f73a1244370fcc2c(arg0, arg1) {
+    const obj = arg1;
+    const ret = typeof(obj) === 'number' ? obj : undefined;
+    getDataViewMemory0().setFloat64(arg0 + 8 * 1, isLikeNone(ret) ? 0 : ret, true);
+    getDataViewMemory0().setInt32(arg0 + 4 * 0, !isLikeNone(ret), true);
+}
+export function __wbg___wbindgen_string_get_d109740c0d18f4d7(arg0, arg1) {
+    const obj = arg1;
+    const ret = typeof(obj) === 'string' ? obj : undefined;
+    var ptr1 = isLikeNone(ret) ? 0 : passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+    var len1 = WASM_VECTOR_LEN;
+    getDataViewMemory0().setInt32(arg0 + 4 * 1, len1, true);
+    getDataViewMemory0().setInt32(arg0 + 4 * 0, ptr1, true);
+}
+export function __wbg___wbindgen_throw_9c31b086c2b26051(arg0, arg1) {
+    throw new Error(getStringFromWasm0(arg0, arg1));
+}
+export function __wbg__wbg_cb_unref_3fa391f3fcdb55f8(arg0) {
+    arg0._wbg_cb_unref();
+}
+export function __wbg_abort_70a701fced9ad53a() { return handleError(function (arg0) {
+    arg0.abort();
+}, arguments); }
+export function __wbg_bound_8d5dfa042d13a74b() { return handleError(function (arg0, arg1, arg2, arg3) {
+    const ret = IDBKeyRange.bound(arg0, arg1, arg2 !== 0, arg3 !== 0);
+    return ret;
+}, arguments); }
+export function __wbg_call_13665d9f14390edc() { return handleError(function (arg0, arg1) {
+    const ret = arg0.call(arg1);
+    return ret;
+}, arguments); }
+export function __wbg_call_dfde26266607c996() { return handleError(function (arg0, arg1, arg2) {
+    const ret = arg0.call(arg1, arg2);
+    return ret;
+}, arguments); }
+export function __wbg_clear_bb1b3ff877b62598() { return handleError(function (arg0) {
+    const ret = arg0.clear();
+    return ret;
+}, arguments); }
+export function __wbg_commit_e9c1332714c53826() { return handleError(function (arg0) {
+    arg0.commit();
+}, arguments); }
+export function __wbg_createObjectStore_7aa4cf3fcb65c75a() { return handleError(function (arg0, arg1, arg2, arg3) {
+    const ret = arg0.createObjectStore(getStringFromWasm0(arg1, arg2), arg3);
+    return ret;
+}, arguments); }
+export function __wbg_crypto_48300657fced39f9(arg0) {
+    const ret = arg0.crypto;
+    return ret;
+}
+export function __wbg_delete_bc03f88e7f14db56() { return handleError(function (arg0, arg1) {
+    const ret = arg0.delete(arg1);
+    return ret;
+}, arguments); }
+export function __wbg_done_54b8da57023b7ed2(arg0) {
+    const ret = arg0.done;
+    return ret;
+}
+export function __wbg_entries_564a7e8b1e54ede5(arg0) {
+    const ret = Object.entries(arg0);
+    return ret;
+}
+export function __wbg_error_a6fa202b58aa1cd3(arg0, arg1) {
+    let deferred0_0;
+    let deferred0_1;
+    try {
+        deferred0_0 = arg0;
+        deferred0_1 = arg1;
+        console.error(getStringFromWasm0(arg0, arg1));
+    } finally {
+        wasm.__wbindgen_free(deferred0_0, deferred0_1, 1);
+    }
+}
+export function __wbg_error_ef9cbaece146d1d5() { return handleError(function (arg0) {
+    const ret = arg0.error;
+    return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
+}, arguments); }
+export function __wbg_getAll_a0a54eef6ac20915() { return handleError(function (arg0, arg1) {
+    const ret = arg0.getAll(arg1);
+    return ret;
+}, arguments); }
+export function __wbg_getAll_bc4f4ec6a1504163() { return handleError(function (arg0) {
+    const ret = arg0.getAll();
+    return ret;
+}, arguments); }
+export function __wbg_getDate_a52123c8affc9072(arg0) {
+    const ret = arg0.getDate();
+    return ret;
+}
+export function __wbg_getDay_50a9ee1e4d17dc24(arg0) {
+    const ret = arg0.getDay();
+    return ret;
+}
+export function __wbg_getFullYear_d5d1f7de344fdc5b(arg0) {
+    const ret = arg0.getFullYear();
+    return ret;
+}
+export function __wbg_getHours_c974d920209733e8(arg0) {
+    const ret = arg0.getHours();
+    return ret;
+}
+export function __wbg_getMinutes_e2e8ae846b37b328(arg0) {
+    const ret = arg0.getMinutes();
+    return ret;
+}
+export function __wbg_getMonth_de70091920053153(arg0) {
+    const ret = arg0.getMonth();
+    return ret;
+}
+export function __wbg_getRandomValues_15134f5c0ae6b0d0() { return handleError(function (arg0, arg1) {
+    globalThis.crypto.getRandomValues(getArrayU8FromWasm0(arg0, arg1));
+}, arguments); }
+export function __wbg_getRandomValues_263d0aa5464054ee() { return handleError(function (arg0, arg1) {
+    arg0.getRandomValues(arg1);
+}, arguments); }
+export function __wbg_getSeconds_2782a558f414ec05(arg0) {
+    const ret = arg0.getSeconds();
+    return ret;
+}
+export function __wbg_getTime_09f1dd40a44edb30(arg0) {
+    const ret = arg0.getTime();
+    return ret;
+}
+export function __wbg_getTimezoneOffset_96cfb6ddebc9e5ca(arg0) {
+    const ret = arg0.getTimezoneOffset();
+    return ret;
+}
+export function __wbg_get_3e9a707ab7d352eb() { return handleError(function (arg0, arg1) {
+    const ret = Reflect.get(arg0, arg1);
+    return ret;
+}, arguments); }
+export function __wbg_get_98fdf51d029a75eb(arg0, arg1) {
+    const ret = arg0[arg1 >>> 0];
+    return ret;
+}
+export function __wbg_get_dcf82ab8aad1a593() { return handleError(function (arg0, arg1) {
+    const ret = Reflect.get(arg0, arg1);
+    return ret;
+}, arguments); }
+export function __wbg_get_unchecked_1dfe6d05ad91d9b7(arg0, arg1) {
+    const ret = arg0[arg1 >>> 0];
+    return ret;
+}
+export function __wbg_get_with_ref_key_6412cf3094599694(arg0, arg1) {
+    const ret = arg0[arg1];
+    return ret;
+}
+export function __wbg_global_e30ac0b7684506d0(arg0) {
+    const ret = arg0.global;
+    return ret;
+}
+export function __wbg_indexedDB_2e82cb845ce6b3ad() { return handleError(function (arg0) {
+    const ret = arg0.indexedDB;
+    return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
+}, arguments); }
+export function __wbg_indexedDB_a2139150e2ea2a08() { return handleError(function (arg0) {
+    const ret = arg0.indexedDB;
+    return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
+}, arguments); }
+export function __wbg_indexedDB_cbfeacc981615a77() { return handleError(function (arg0) {
+    const ret = arg0.indexedDB;
+    return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
+}, arguments); }
+export function __wbg_instanceof_ArrayBuffer_53db37b06f6b9afe(arg0) {
+    let result;
+    try {
+        result = arg0 instanceof ArrayBuffer;
+    } catch (_) {
+        result = false;
+    }
+    const ret = result;
+    return ret;
+}
+export function __wbg_instanceof_DomException_bc16ce893e8c7439(arg0) {
+    let result;
+    try {
+        result = arg0 instanceof DOMException;
+    } catch (_) {
+        result = false;
+    }
+    const ret = result;
+    return ret;
+}
+export function __wbg_instanceof_Error_b3f7e146d654031a(arg0) {
+    let result;
+    try {
+        result = arg0 instanceof Error;
+    } catch (_) {
+        result = false;
+    }
+    const ret = result;
+    return ret;
+}
+export function __wbg_instanceof_IdbDatabase_102b0fe5255eee9c(arg0) {
+    let result;
+    try {
+        result = arg0 instanceof IDBDatabase;
+    } catch (_) {
+        result = false;
+    }
+    const ret = result;
+    return ret;
+}
+export function __wbg_instanceof_IdbRequest_eef501cff5d0b7c1(arg0) {
+    let result;
+    try {
+        result = arg0 instanceof IDBRequest;
+    } catch (_) {
+        result = false;
+    }
+    const ret = result;
+    return ret;
+}
+export function __wbg_instanceof_Map_16f217b9a2a08d8c(arg0) {
+    let result;
+    try {
+        result = arg0 instanceof Map;
+    } catch (_) {
+        result = false;
+    }
+    const ret = result;
+    return ret;
+}
+export function __wbg_instanceof_Uint8Array_abd07d4bd221d50b(arg0) {
+    let result;
+    try {
+        result = arg0 instanceof Uint8Array;
+    } catch (_) {
+        result = false;
+    }
+    const ret = result;
+    return ret;
+}
+export function __wbg_isArray_94898ed3aad6947b(arg0) {
+    const ret = Array.isArray(arg0);
+    return ret;
+}
+export function __wbg_isSafeInteger_01e964d144ad3a55(arg0) {
+    const ret = Number.isSafeInteger(arg0);
+    return ret;
+}
+export function __wbg_iterator_1441b47f341dc34f() {
+    const ret = Symbol.iterator;
+    return ret;
+}
+export function __wbg_length_2591a0f4f659a55c(arg0) {
+    const ret = arg0.length;
+    return ret;
+}
+export function __wbg_length_56fcd3e2b7e0299d(arg0) {
+    const ret = arg0.length;
+    return ret;
+}
+export function __wbg_lowerBound_a64226f683db77bb() { return handleError(function (arg0, arg1) {
+    const ret = IDBKeyRange.lowerBound(arg0, arg1 !== 0);
+    return ret;
+}, arguments); }
+export function __wbg_message_324ac511aeaf710e(arg0) {
+    const ret = arg0.message;
+    return ret;
+}
+export function __wbg_message_e88a8d3ba2b91c2a(arg0, arg1) {
+    const ret = arg1.message;
+    const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+    const len1 = WASM_VECTOR_LEN;
+    getDataViewMemory0().setInt32(arg0 + 4 * 1, len1, true);
+    getDataViewMemory0().setInt32(arg0 + 4 * 0, ptr1, true);
+}
+export function __wbg_msCrypto_8c6d45a75ef1d3da(arg0) {
+    const ret = arg0.msCrypto;
+    return ret;
+}
+export function __wbg_name_fe88cfc178ec40b8(arg0, arg1) {
+    const ret = arg1.name;
+    const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+    const len1 = WASM_VECTOR_LEN;
+    getDataViewMemory0().setInt32(arg0 + 4 * 1, len1, true);
+    getDataViewMemory0().setInt32(arg0 + 4 * 0, ptr1, true);
+}
+export function __wbg_new_02d162bc6cf02f60() {
+    const ret = new Object();
+    return ret;
+}
+export function __wbg_new_070df68d66325372() {
+    const ret = new Map();
+    return ret;
+}
+export function __wbg_new_0_2722fcdb71a888a6() {
+    const ret = new Date();
+    return ret;
+}
+export function __wbg_new_1f236d63ba0c4784(arg0, arg1) {
+    const ret = new Error(getStringFromWasm0(arg0, arg1));
+    return ret;
+}
+export function __wbg_new_227d7c05414eb861() {
+    const ret = new Error();
+    return ret;
+}
+export function __wbg_new_310879b66b6e95e1() {
+    const ret = new Array();
+    return ret;
+}
+export function __wbg_new_7ddec6de44ff8f5d(arg0) {
+    const ret = new Uint8Array(arg0);
+    return ret;
+}
+export function __wbg_new_859b9002e2668e82(arg0) {
+    const ret = new Date(arg0);
+    return ret;
+}
+export function __wbg_new_from_slice_269e35316ed2d061(arg0, arg1) {
+    const ret = new Uint8Array(getArrayU8FromWasm0(arg0, arg1));
+    return ret;
+}
+export function __wbg_new_typed_c072c4ce9a2a0cdf(arg0, arg1) {
+    try {
+        var state0 = {a: arg0, b: arg1};
+        var cb0 = (arg0, arg1) => {
+            const a = state0.a;
+            state0.a = 0;
+            try {
+                return wasm_bindgen__convert__closures_____invoke__h2c72ca09e851b7f3(a, state0.b, arg0, arg1);
+            } finally {
+                state0.a = a;
+            }
+        };
+        const ret = new Promise(cb0);
+        return ret;
+    } finally {
+        state0.a = 0;
+    }
+}
+export function __wbg_new_with_length_99887c91eae4abab(arg0) {
+    const ret = new Uint8Array(arg0 >>> 0);
+    return ret;
+}
+export function __wbg_new_with_year_month_day_0ccdc1cc3a42b726(arg0, arg1, arg2) {
+    const ret = new Date(arg0 >>> 0, arg1, arg2);
+    return ret;
+}
+export function __wbg_next_2a4e19f4f5083b0f(arg0) {
+    const ret = arg0.next;
+    return ret;
+}
+export function __wbg_next_6429a146bf756f93() { return handleError(function (arg0) {
+    const ret = arg0.next();
+    return ret;
+}, arguments); }
+export function __wbg_node_95beb7570492fd97(arg0) {
+    const ret = arg0.node;
+    return ret;
+}
+export function __wbg_objectStore_b28adb984a77902e() { return handleError(function (arg0, arg1, arg2) {
+    const ret = arg0.objectStore(getStringFromWasm0(arg1, arg2));
+    return ret;
+}, arguments); }
+export function __wbg_open_40ab11cdd8f5ac5a() { return handleError(function (arg0, arg1, arg2, arg3) {
+    const ret = arg0.open(getStringFromWasm0(arg1, arg2), arg3 >>> 0);
+    return ret;
+}, arguments); }
+export function __wbg_process_b2fea42461d03994(arg0) {
+    const ret = arg0.process;
+    return ret;
+}
+export function __wbg_prototypesetcall_5f9bdc8d75e07276(arg0, arg1, arg2) {
+    Uint8Array.prototype.set.call(getArrayU8FromWasm0(arg0, arg1), arg2);
+}
+export function __wbg_push_b77c476b01548d0a(arg0, arg1) {
+    const ret = arg0.push(arg1);
+    return ret;
+}
+export function __wbg_put_848906967513a84d() { return handleError(function (arg0, arg1) {
+    const ret = arg0.put(arg1);
+    return ret;
+}, arguments); }
+export function __wbg_queueMicrotask_78d584b53af520f5(arg0) {
+    const ret = arg0.queueMicrotask;
+    return ret;
+}
+export function __wbg_queueMicrotask_b39ea83c7f01971a(arg0) {
+    queueMicrotask(arg0);
+}
+export function __wbg_randomFillSync_ca9f178fb14c88cb() { return handleError(function (arg0, arg1) {
+    arg0.randomFillSync(arg1);
+}, arguments); }
+export function __wbg_random_a8dfe52b70cb65a5() {
+    const ret = Math.random();
+    return ret;
+}
+export function __wbg_readyState_b7c530197b76b93b(arg0) {
+    const ret = arg0.readyState;
+    return (__wbindgen_enum_IdbRequestReadyState.indexOf(ret) + 1 || 3) - 1;
+}
+export function __wbg_require_7a9419e39d796c95() { return handleError(function () {
+    const ret = module.require;
+    return ret;
+}, arguments); }
+export function __wbg_resolve_d17db9352f5a220e(arg0) {
+    const ret = Promise.resolve(arg0);
+    return ret;
+}
+export function __wbg_result_c4cb33cd39c97cac() { return handleError(function (arg0) {
+    const ret = arg0.result;
+    return ret;
+}, arguments); }
+export function __wbg_set_24d0fa9e104112f9(arg0, arg1, arg2) {
+    arg0.set(getArrayU8FromWasm0(arg1, arg2));
+}
+export function __wbg_set_6be42768c690e380(arg0, arg1, arg2) {
+    arg0[arg1] = arg2;
+}
+export function __wbg_set_78ea6a19f4818587(arg0, arg1, arg2) {
+    arg0[arg1 >>> 0] = arg2;
+}
+export function __wbg_set_a0e911be3da02782() { return handleError(function (arg0, arg1, arg2) {
+    const ret = Reflect.set(arg0, arg1, arg2);
+    return ret;
+}, arguments); }
+export function __wbg_set_facb7a5914e0fa39(arg0, arg1, arg2) {
+    const ret = arg0.set(arg1, arg2);
+    return ret;
+}
+export function __wbg_set_key_path_8f8e19a098d0851c(arg0, arg1) {
+    arg0.keyPath = arg1;
+}
+export function __wbg_set_onabort_ed56d2172d920901(arg0, arg1) {
+    arg0.onabort = arg1;
+}
+export function __wbg_set_oncomplete_3f428ec13b20d7cc(arg0, arg1) {
+    arg0.oncomplete = arg1;
+}
+export function __wbg_set_onerror_38740b892815eedc(arg0, arg1) {
+    arg0.onerror = arg1;
+}
+export function __wbg_set_onerror_457b093a5063c7ec(arg0, arg1) {
+    arg0.onerror = arg1;
+}
+export function __wbg_set_onsuccess_b556141053d02ea7(arg0, arg1) {
+    arg0.onsuccess = arg1;
+}
+export function __wbg_set_onupgradeneeded_f885fa17614acd2b(arg0, arg1) {
+    arg0.onupgradeneeded = arg1;
+}
+export function __wbg_stack_3b0d974bbf31e44f(arg0, arg1) {
+    const ret = arg1.stack;
+    const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+    const len1 = WASM_VECTOR_LEN;
+    getDataViewMemory0().setInt32(arg0 + 4 * 1, len1, true);
+    getDataViewMemory0().setInt32(arg0 + 4 * 0, ptr1, true);
+}
+export function __wbg_static_accessor_GLOBAL_THIS_02344c9b09eb08a9() {
+    const ret = typeof globalThis === 'undefined' ? null : globalThis;
+    return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
+}
+export function __wbg_static_accessor_GLOBAL_ac6d4ac874d5cd54() {
+    const ret = typeof global === 'undefined' ? null : global;
+    return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
+}
+export function __wbg_static_accessor_SELF_9b2406c23aeb2023() {
+    const ret = typeof self === 'undefined' ? null : self;
+    return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
+}
+export function __wbg_static_accessor_WINDOW_b34d2126934e16ba() {
+    const ret = typeof window === 'undefined' ? null : window;
+    return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
+}
+export function __wbg_subarray_7c6a0da8f3b4a1ba(arg0, arg1, arg2) {
+    const ret = arg0.subarray(arg1 >>> 0, arg2 >>> 0);
+    return ret;
+}
+export function __wbg_target_84e05e84ffc12989(arg0) {
+    const ret = arg0.target;
+    return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
+}
+export function __wbg_then_837494e384b37459(arg0, arg1) {
+    const ret = arg0.then(arg1);
+    return ret;
+}
+export function __wbg_toString_1dda136fd8f30a5f(arg0) {
+    const ret = arg0.toString();
+    return ret;
+}
+export function __wbg_transaction_213e4f585d3d1b40(arg0) {
+    const ret = arg0.transaction;
+    return ret;
+}
+export function __wbg_transaction_b7261fed68fa4264() { return handleError(function (arg0, arg1, arg2, arg3) {
+    const ret = arg0.transaction(getStringFromWasm0(arg1, arg2), __wbindgen_enum_IdbTransactionMode[arg3]);
+    return ret;
+}, arguments); }
+export function __wbg_upperBound_f7daa7529e579cfc() { return handleError(function (arg0, arg1) {
+    const ret = IDBKeyRange.upperBound(arg0, arg1 !== 0);
+    return ret;
+}, arguments); }
+export function __wbg_value_9cc0518af87a489c(arg0) {
+    const ret = arg0.value;
+    return ret;
+}
+export function __wbg_versions_215a3ab1c9d5745a(arg0) {
+    const ret = arg0.versions;
+    return ret;
+}
+export function __wbindgen_cast_0000000000000001(arg0, arg1) {
+    // Cast intrinsic for `Closure(Closure { owned: true, function: Function { arguments: [Externref], shim_idx: 1104, ret: Result(Unit), inner_ret: Some(Result(Unit)) }, mutable: true }) -> Externref`.
+    const ret = makeMutClosure(arg0, arg1, wasm_bindgen__convert__closures_____invoke__hf84d53817e0238b4);
+    return ret;
+}
+export function __wbindgen_cast_0000000000000002(arg0, arg1) {
+    // Cast intrinsic for `Closure(Closure { owned: true, function: Function { arguments: [NamedExternref("Event")], shim_idx: 202, ret: Unit, inner_ret: Some(Unit) }, mutable: true }) -> Externref`.
+    const ret = makeMutClosure(arg0, arg1, wasm_bindgen__convert__closures_____invoke__h7e06bb925b918fbb);
+    return ret;
+}
+export function __wbindgen_cast_0000000000000003(arg0, arg1) {
+    // Cast intrinsic for `Closure(Closure { owned: true, function: Function { arguments: [NamedExternref("IDBVersionChangeEvent")], shim_idx: 180, ret: Result(Unit), inner_ret: Some(Result(Unit)) }, mutable: true }) -> Externref`.
+    const ret = makeMutClosure(arg0, arg1, wasm_bindgen__convert__closures_____invoke__ha579407f9663b071);
+    return ret;
+}
+export function __wbindgen_cast_0000000000000004(arg0, arg1) {
+    // Cast intrinsic for `Closure(Closure { owned: true, function: Function { arguments: [], shim_idx: 200, ret: Unit, inner_ret: Some(Unit) }, mutable: true }) -> Externref`.
+    const ret = makeMutClosure(arg0, arg1, wasm_bindgen__convert__closures_____invoke__h87640adb2bbfa2fc);
+    return ret;
+}
+export function __wbindgen_cast_0000000000000005(arg0) {
+    // Cast intrinsic for `F64 -> Externref`.
+    const ret = arg0;
+    return ret;
+}
+export function __wbindgen_cast_0000000000000006(arg0) {
+    // Cast intrinsic for `I64 -> Externref`.
+    const ret = arg0;
+    return ret;
+}
+export function __wbindgen_cast_0000000000000007(arg0, arg1) {
+    // Cast intrinsic for `Ref(Slice(U8)) -> NamedExternref("Uint8Array")`.
+    const ret = getArrayU8FromWasm0(arg0, arg1);
+    return ret;
+}
+export function __wbindgen_cast_0000000000000008(arg0, arg1) {
+    // Cast intrinsic for `Ref(String) -> Externref`.
+    const ret = getStringFromWasm0(arg0, arg1);
+    return ret;
+}
+export function __wbindgen_cast_0000000000000009(arg0) {
+    // Cast intrinsic for `U64 -> Externref`.
+    const ret = BigInt.asUintN(64, arg0);
+    return ret;
+}
+export function __wbindgen_init_externref_table() {
+    const table = wasm.__wbindgen_externrefs;
+    const offset = table.grow(4);
+    table.set(0, undefined);
+    table.set(offset + 0, undefined);
+    table.set(offset + 1, null);
+    table.set(offset + 2, true);
+    table.set(offset + 3, false);
+}
+function wasm_bindgen__convert__closures_____invoke__h87640adb2bbfa2fc(arg0, arg1) {
+    wasm.wasm_bindgen__convert__closures_____invoke__h87640adb2bbfa2fc(arg0, arg1);
+}
+
+function wasm_bindgen__convert__closures_____invoke__h7e06bb925b918fbb(arg0, arg1, arg2) {
+    wasm.wasm_bindgen__convert__closures_____invoke__h7e06bb925b918fbb(arg0, arg1, arg2);
+}
+
+function wasm_bindgen__convert__closures_____invoke__hf84d53817e0238b4(arg0, arg1, arg2) {
+    const ret = wasm.wasm_bindgen__convert__closures_____invoke__hf84d53817e0238b4(arg0, arg1, arg2);
+    if (ret[1]) {
+        throw takeFromExternrefTable0(ret[0]);
+    }
+}
+
+function wasm_bindgen__convert__closures_____invoke__ha579407f9663b071(arg0, arg1, arg2) {
+    const ret = wasm.wasm_bindgen__convert__closures_____invoke__ha579407f9663b071(arg0, arg1, arg2);
+    if (ret[1]) {
+        throw takeFromExternrefTable0(ret[0]);
+    }
+}
+
+function wasm_bindgen__convert__closures_____invoke__h2c72ca09e851b7f3(arg0, arg1, arg2, arg3) {
+    wasm.wasm_bindgen__convert__closures_____invoke__h2c72ca09e851b7f3(arg0, arg1, arg2, arg3);
+}
+
+
+const __wbindgen_enum_IdbRequestReadyState = ["pending", "done"];
+
+
+const __wbindgen_enum_IdbTransactionMode = ["readonly", "readwrite", "versionchange", "readwriteflush", "cleanup"];
+
+function addToExternrefTable0(obj) {
+    const idx = wasm.__externref_table_alloc();
+    wasm.__wbindgen_externrefs.set(idx, obj);
+    return idx;
+}
+
+const CLOSURE_DTORS = (typeof FinalizationRegistry === 'undefined')
+    ? { register: () => {}, unregister: () => {} }
+    : new FinalizationRegistry(state => wasm.__wbindgen_destroy_closure(state.a, state.b));
+
+function debugString(val) {
+    // primitive types
+    const type = typeof val;
+    if (type == 'number' || type == 'boolean' || val == null) {
+        return  `${val}`;
+    }
+    if (type == 'string') {
+        return `"${val}"`;
+    }
+    if (type == 'symbol') {
+        const description = val.description;
+        if (description == null) {
+            return 'Symbol';
+        } else {
+            return `Symbol(${description})`;
+        }
+    }
+    if (type == 'function') {
+        const name = val.name;
+        if (typeof name == 'string' && name.length > 0) {
+            return `Function(${name})`;
+        } else {
+            return 'Function';
+        }
+    }
+    // objects
+    if (Array.isArray(val)) {
+        const length = val.length;
+        let debug = '[';
+        if (length > 0) {
+            debug += debugString(val[0]);
+        }
+        for(let i = 1; i < length; i++) {
+            debug += ', ' + debugString(val[i]);
+        }
+        debug += ']';
+        return debug;
+    }
+    // Test for built-in
+    const builtInMatches = /\[object ([^\]]+)\]/.exec(toString.call(val));
+    let className;
+    if (builtInMatches && builtInMatches.length > 1) {
+        className = builtInMatches[1];
+    } else {
+        // Failed to match the standard '[object ClassName]'
+        return toString.call(val);
+    }
+    if (className == 'Object') {
+        // we're a user defined class or Object
+        // JSON.stringify avoids problems with cycles, and is generally much
+        // easier than looping through ownProperties of `val`.
+        try {
+            return 'Object(' + JSON.stringify(val) + ')';
+        } catch (_) {
+            return 'Object';
+        }
+    }
+    // errors
+    if (val instanceof Error) {
+        return `${val.name}: ${val.message}\n${val.stack}`;
+    }
+    // TODO we could test for more things here, like `Set`s and `Map`s.
+    return className;
+}
+
+function getArrayU8FromWasm0(ptr, len) {
+    ptr = ptr >>> 0;
+    return getUint8ArrayMemory0().subarray(ptr / 1, ptr / 1 + len);
+}
+
+let cachedDataViewMemory0 = null;
+function getDataViewMemory0() {
+    if (cachedDataViewMemory0 === null || cachedDataViewMemory0.buffer.detached === true || (cachedDataViewMemory0.buffer.detached === undefined && cachedDataViewMemory0.buffer !== wasm.memory.buffer)) {
+        cachedDataViewMemory0 = new DataView(wasm.memory.buffer);
+    }
+    return cachedDataViewMemory0;
+}
+
+function getStringFromWasm0(ptr, len) {
+    return decodeText(ptr >>> 0, len);
+}
+
+let cachedUint8ArrayMemory0 = null;
+function getUint8ArrayMemory0() {
+    if (cachedUint8ArrayMemory0 === null || cachedUint8ArrayMemory0.byteLength === 0) {
+        cachedUint8ArrayMemory0 = new Uint8Array(wasm.memory.buffer);
+    }
+    return cachedUint8ArrayMemory0;
+}
+
+function handleError(f, args) {
+    try {
+        return f.apply(this, args);
+    } catch (e) {
+        const idx = addToExternrefTable0(e);
+        wasm.__wbindgen_exn_store(idx);
+    }
+}
+
+function isLikeNone(x) {
+    return x === undefined || x === null;
+}
+
+function makeMutClosure(arg0, arg1, f) {
+    const state = { a: arg0, b: arg1, cnt: 1 };
+    const real = (...args) => {
+
+        // First up with a closure we increment the internal reference
+        // count. This ensures that the Rust closure environment won't
+        // be deallocated while we're invoking it.
+        state.cnt++;
+        const a = state.a;
+        state.a = 0;
+        try {
+            return f(a, state.b, ...args);
+        } finally {
+            state.a = a;
+            real._wbg_cb_unref();
+        }
+    };
+    real._wbg_cb_unref = () => {
+        if (--state.cnt === 0) {
+            wasm.__wbindgen_destroy_closure(state.a, state.b);
+            state.a = 0;
+            CLOSURE_DTORS.unregister(state);
+        }
+    };
+    CLOSURE_DTORS.register(real, state, state);
+    return real;
+}
+
+function passArray8ToWasm0(arg, malloc) {
+    const ptr = malloc(arg.length * 1, 1) >>> 0;
+    getUint8ArrayMemory0().set(arg, ptr / 1);
+    WASM_VECTOR_LEN = arg.length;
+    return ptr;
+}
+
+function passStringToWasm0(arg, malloc, realloc) {
+    if (realloc === undefined) {
+        const buf = cachedTextEncoder.encode(arg);
+        const ptr = malloc(buf.length, 1) >>> 0;
+        getUint8ArrayMemory0().subarray(ptr, ptr + buf.length).set(buf);
+        WASM_VECTOR_LEN = buf.length;
+        return ptr;
+    }
+
+    let len = arg.length;
+    let ptr = malloc(len, 1) >>> 0;
+
+    const mem = getUint8ArrayMemory0();
+
+    let offset = 0;
+
+    for (; offset < len; offset++) {
+        const code = arg.charCodeAt(offset);
+        if (code > 0x7F) break;
+        mem[ptr + offset] = code;
+    }
+    if (offset !== len) {
+        if (offset !== 0) {
+            arg = arg.slice(offset);
+        }
+        ptr = realloc(ptr, len, len = offset + arg.length * 3, 1) >>> 0;
+        const view = getUint8ArrayMemory0().subarray(ptr + offset, ptr + len);
+        const ret = cachedTextEncoder.encodeInto(arg, view);
+
+        offset += ret.written;
+        ptr = realloc(ptr, len, offset, 1) >>> 0;
+    }
+
+    WASM_VECTOR_LEN = offset;
+    return ptr;
+}
+
+function takeFromExternrefTable0(idx) {
+    const value = wasm.__wbindgen_externrefs.get(idx);
+    wasm.__externref_table_dealloc(idx);
+    return value;
+}
+
+let cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });
+cachedTextDecoder.decode();
+const MAX_SAFARI_DECODE_BYTES = 2146435072;
+let numBytesDecoded = 0;
+function decodeText(ptr, len) {
+    numBytesDecoded += len;
+    if (numBytesDecoded >= MAX_SAFARI_DECODE_BYTES) {
+        cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });
+        cachedTextDecoder.decode();
+        numBytesDecoded = len;
+    }
+    return cachedTextDecoder.decode(getUint8ArrayMemory0().subarray(ptr, ptr + len));
+}
+
+const cachedTextEncoder = new TextEncoder();
+
+if (!('encodeInto' in cachedTextEncoder)) {
+    cachedTextEncoder.encodeInto = function (arg, view) {
+        const buf = cachedTextEncoder.encode(arg);
+        view.set(buf);
+        return {
+            read: arg.length,
+            written: buf.length
+        };
+    };
+}
+
+let WASM_VECTOR_LEN = 0;
+
+
+let wasm;
+export function __wbg_set_wasm(val) {
+    wasm = val;
+}
@@ -0,0 +1,32 @@
+/* tslint:disable */
+/* eslint-disable */
+export const memory: WebAssembly.Memory;
+export const blob_delete: (a: number, b: number) => [number, number];
+export const blob_get: (a: number, b: number) => [number, number, number, number];
+export const blob_put: (a: number, b: number, c: number, d: number) => [number, number];
+export const boot: () => any;
+export const rpc: (a: number, b: number, c: any, d: number, e: number) => [number, number, number];
+export const rust_sqlite_wasm_abort: () => void;
+export const rust_sqlite_wasm_assert_fail: (a: number, b: number, c: number, d: number) => void;
+export const rust_sqlite_wasm_calloc: (a: number, b: number) => number;
+export const rust_sqlite_wasm_free: (a: number) => void;
+export const rust_sqlite_wasm_getentropy: (a: number, b: number) => number;
+export const rust_sqlite_wasm_localtime: (a: number) => number;
+export const rust_sqlite_wasm_malloc: (a: number) => number;
+export const rust_sqlite_wasm_realloc: (a: number, b: number) => number;
+export const sqlite3_os_end: () => number;
+export const sqlite3_os_init: () => number;
+export const wasm_bindgen__convert__closures_____invoke__hf84d53817e0238b4: (a: number, b: number, c: any) => [number, number];
+export const wasm_bindgen__convert__closures_____invoke__ha579407f9663b071: (a: number, b: number, c: any) => [number, number];
+export const wasm_bindgen__convert__closures_____invoke__h2c72ca09e851b7f3: (a: number, b: number, c: any, d: any) => void;
+export const wasm_bindgen__convert__closures_____invoke__h7e06bb925b918fbb: (a: number, b: number, c: any) => void;
+export const wasm_bindgen__convert__closures_____invoke__h87640adb2bbfa2fc: (a: number, b: number) => void;
+export const __wbindgen_malloc: (a: number, b: number) => number;
+export const __wbindgen_realloc: (a: number, b: number, c: number, d: number) => number;
+export const __wbindgen_exn_store: (a: number) => void;
+export const __externref_table_alloc: () => number;
+export const __wbindgen_externrefs: WebAssembly.Table;
+export const __wbindgen_free: (a: number, b: number, c: number) => void;
+export const __wbindgen_destroy_closure: (a: number, b: number) => void;
+export const __externref_table_dealloc: (a: number) => void;
+export const __wbindgen_start: () => void;
@@ -0,0 +1,356 @@
+//! The desktop's model layer, running in a browser.
+//!
+//! Nothing here is model logic. This crate registers a persistent VFS, opens
+//! the database through the same `init_standalone` the CLI uses, and answers
+//! the `models_*` commands by calling the same `ClientDb` queries the desktop
+//! does. A browser tab therefore stores exactly what a desktop install stores,
+//! migrations and all — the only thing that differs is where the SQLite pages
+//! live (IndexedDB) and who is calling in (a worker instead of Tauri).
+//!
+//! It is meant to be loaded once, in one place — a SharedWorker — because two
+//! SQLite instances over the same IndexedDB pages would corrupt them. The
+//! JavaScript side owns that; this crate assumes it is the only writer.
+//!
+//! The command surface is deliberately narrow: what the frontend needs to keep
+//! its model store coherent, and blob storage. Sending, plugins, git, sync and
+//! everything else with a socket or a filesystem behind it lives elsewhere.
+
+// Nothing in here means anything off wasm32, and building it there would drag
+// SQLite's wasm C shim into a native compile. So on any other target the crate
+// is empty — a workspace-wide `cargo test` passes through it.
+#![cfg(target_arch = "wasm32")]
+
+use std::cell::RefCell;
+use std::sync::mpsc;
+
+use serde::{Deserialize, Serialize};
+use wasm_bindgen::prelude::*;
+use yaak_models::blob_manager::{BlobManager, BodyChunk};
+use yaak_models::models::AnyModel;
+use yaak_models::models_ops;
+use yaak_models::query_manager::QueryManager;
+use yaak_models::util::{ModelPayload, UpdateSource};
+
+/// Names inside the VFS, not paths on any disk. Two files because the desktop
+/// keeps two: models in one, blobs in the other.
+const DB_NAME: &str = "yaak.db";
+const BLOB_DB_NAME: &str = "yaak-blobs.db";
+const VFS_NAME: &str = "yaak-idb";
+
+struct Host {
+    queries: QueryManager,
+    blobs: BlobManager,
+    events: mpsc::Receiver<ModelPayload>,
+}
+
+thread_local! {
+    static HOST: RefCell<Option<Host>> = const { RefCell::new(None) };
+}
+
+/* -------------------------------------------------------------------------- */
+/* Errors                                                                      */
+/* -------------------------------------------------------------------------- */
+
+/// What a failed command hands back to JavaScript: a real `Error`, so it
+/// throws like one, with `message` set to the model layer's own text.
+fn js_error(e: impl std::fmt::Display) -> JsValue {
+    js_sys::Error::new(&e.to_string()).into()
+}
+
+type Result<T> = std::result::Result<T, JsValue>;
+
+/* -------------------------------------------------------------------------- */
+/* Boot                                                                        */
+/* -------------------------------------------------------------------------- */
+
+/// Register the IndexedDB-backed VFS and open the database.
+///
+/// Migrations run inside `init_standalone`, exactly as they do for the CLI.
+/// Safe to call more than once; later calls are no-ops.
+#[wasm_bindgen]
+pub async fn boot() -> Result<()> {
+    console_error_panic_hook::set_once();
+
+    if HOST.with(|h| h.borrow().is_some()) {
+        return Ok(());
+    }
+
+    // "Relaxed" means writes land in memory first and are flushed to
+    // IndexedDB shortly after, rather than on every commit. It is the right
+    // trade for a client app: a tab closing mid-flush loses at most the last
+    // few writes, and the alternative (OPFS sync access handles) needs a
+    // dedicated worker per file and is not available everywhere.
+    let cfg = sqlite_wasm_vfs::relaxed_idb::RelaxedIdbCfgBuilder::new()
+        .vfs_name(VFS_NAME)
+        .preload(sqlite_wasm_vfs::relaxed_idb::Preload::All)
+        .build();
+    sqlite_wasm_vfs::relaxed_idb::install::<sqlite_wasm_rs::WasmOsCallback>(&cfg, true)
+        .await
+        .map_err(js_error)?;
+
+    let (queries, blobs, events) =
+        yaak_models::init_standalone(DB_NAME, BLOB_DB_NAME).map_err(js_error)?;
+
+    HOST.with(|h| *h.borrow_mut() = Some(Host { queries, blobs, events }));
+    Ok(())
+}
+
+fn with_host<T>(f: impl FnOnce(&Host) -> Result<T>) -> Result<T> {
+    HOST.with(|h| {
+        let h = h.borrow();
+        let host = h.as_ref().ok_or_else(|| js_error("yaak-web: call boot() before rpc()"))?;
+        f(host)
+    })
+}
+
+/* -------------------------------------------------------------------------- */
+/* Commands                                                                    */
+/* -------------------------------------------------------------------------- */
+
+/// A command's outcome, plus every model write it caused.
+///
+/// The writes ride along with the result rather than being fetched separately
+/// so the caller can announce them atomically with completion — a tab that
+/// awaits `models_upsert` must see its echo before or with the response, never
+/// after, or the store races the reply.
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct RpcOutcome {
+    result: serde_json::Value,
+    events: Vec<ModelPayload>,
+}
+
+/// Run one command as `label` (the calling tab's identity, which stands in for
+/// the desktop's window label on every write it makes).
+///
+/// The payload shapes match the `Cmd*Req` types in `yaak-rpc-schema`, but are
+/// declared locally and dispatched by name, which is the one place this host
+/// does not share the desktop's guarantees: the desktop builds its router from
+/// the schema, so every command has a handler by construction. Here a renamed
+/// command would surface as a runtime "not a command this host answers".
+///
+/// The fix is `yaak-commands` (the `Host` trait), not more machinery here —
+/// its `models::*` handlers are already this file, typed. Three things have to
+/// give before a wasm host can register them:
+///
+/// 1. `Host: Send + Sync`, which a browser cannot satisfy: there is one thread
+///    and the connection pool is an `Rc`.
+/// 2. `models_delete` reaches for `spawn_blocking`; there is nothing to spawn
+///    onto here.
+/// 3. `yaak-commands` depends on `yaak` and `yaak-plugins`, which pull the HTTP
+///    stack and the Node sidecar and do not build for wasm32.
+///
+/// None of those are hard; they are just not this PR.
+#[wasm_bindgen]
+pub fn rpc(cmd: &str, payload: JsValue, label: &str) -> Result<JsValue> {
+    let source = UpdateSource::from_window_label(label);
+
+    let result = with_host(|host| dispatch(host, cmd, payload, &source))?;
+    let events = with_host(|host| Ok(host.events.try_iter().collect::<Vec<_>>()))?;
+
+    use serde::Serialize as _;
+    RpcOutcome { result, events }
+        .serialize(&serde_wasm_bindgen::Serializer::json_compatible())
+        .map_err(js_error)
+}
+
+fn from_js<T: for<'de> Deserialize<'de>>(payload: JsValue) -> Result<T> {
+    serde_wasm_bindgen::from_value(payload).map_err(js_error)
+}
+
+fn to_json<T: Serialize>(value: T) -> Result<serde_json::Value> {
+    serde_json::to_value(value).map_err(js_error)
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct WorkspaceModelsReq {
+    workspace_id: Option<String>,
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct ModelReq {
+    model: AnyModel,
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct DuplicateReq {
+    model_type: String,
+    model_id: String,
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct WorkspaceIdReq {
+    workspace_id: String,
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct RequestIdReq {
+    request_id: String,
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct UpsertIntrospectionReq {
+    workspace_id: String,
+    request_id: String,
+    content: Option<String>,
+}
+
+fn dispatch(
+    host: &Host,
+    cmd: &str,
+    payload: JsValue,
+    source: &UpdateSource,
+) -> Result<serde_json::Value> {
+    match cmd {
+        // The one big read. Same list, same order, and the same four lazy
+        // creates (settings, first workspace, cookie jar, base environment) as
+        // `models_workspace_models` on the desktop — this call is where an
+        // empty database becomes a usable one. Returned as a JSON *string*
+        // because that is what the desktop returns and what the store parses.
+        "models_workspace_models" => {
+            let req: WorkspaceModelsReq = from_js(payload)?;
+            let db = host.queries.connect();
+            let mut list: Vec<AnyModel> = Vec::new();
+
+            list.push(db.get_settings().into());
+            list.extend(db.list_workspaces().map_err(js_error)?.into_iter().map(Into::into));
+            list.extend(db.list_key_values().map_err(js_error)?.into_iter().map(Into::into));
+            // No plugin runtime to resolve these against; the rows are still
+            // the truth about what is installed.
+            list.extend(db.list_plugins().map_err(js_error)?.into_iter().map(Into::into));
+
+            if let Some(wid) = req.workspace_id.as_deref() {
+                let e = js_error;
+                list.extend(db.list_cookie_jars(wid).map_err(e)?.into_iter().map(Into::into));
+                list.extend(
+                    db.list_environments_ensure_base(wid).map_err(e)?.into_iter().map(Into::into),
+                );
+                list.extend(db.list_folders(wid).map_err(e)?.into_iter().map(Into::into));
+                list.extend(db.list_grpc_connections(wid).map_err(e)?.into_iter().map(Into::into));
+                list.extend(db.list_grpc_requests(wid).map_err(e)?.into_iter().map(Into::into));
+                list.extend(db.list_http_requests(wid).map_err(e)?.into_iter().map(Into::into));
+                list.extend(
+                    db.list_http_responses(wid, None).map_err(e)?.into_iter().map(Into::into),
+                );
+                list.extend(
+                    db.list_websocket_connections(wid).map_err(e)?.into_iter().map(Into::into),
+                );
+                list.extend(
+                    db.list_websocket_requests(wid).map_err(e)?.into_iter().map(Into::into),
+                );
+                list.extend(db.list_workspace_metas(wid).map_err(e)?.into_iter().map(Into::into));
+            }
+
+            to_json(serde_json::to_string(&list).map_err(js_error)?)
+        }
+
+        "models_upsert" => {
+            let req: ModelReq = from_js(payload)?;
+            let db = host.queries.connect();
+            let id =
+                models_ops::upsert_model(&db, &host.blobs, req.model, source).map_err(js_error)?;
+            to_json(id)
+        }
+
+        // Deletes and duplicates cascade, so they run in a transaction, as on
+        // the desktop.
+        "models_delete" => {
+            let req: ModelReq = from_js(payload)?;
+            let id = host
+                .queries
+                .with_tx(|tx| models_ops::delete_model(tx, &host.blobs, req.model, source))
+                .map_err(js_error)?;
+            to_json(id)
+        }
+
+        "models_duplicate" => {
+            let req: DuplicateReq = from_js(payload)?;
+            let id = host
+                .queries
+                .with_tx(|tx| {
+                    models_ops::duplicate_model(tx, &req.model_type, &req.model_id, source)
+                })
+                .map_err(js_error)?;
+            to_json(id)
+        }
+
+        "models_get_settings" => to_json(host.queries.connect().get_settings()),
+
+        "models_get_graphql_introspection" => {
+            let req: RequestIdReq = from_js(payload)?;
+            to_json(host.queries.connect().get_graphql_introspection(&req.request_id))
+        }
+
+        "models_upsert_graphql_introspection" => {
+            let req: UpsertIntrospectionReq = from_js(payload)?;
+            let saved = host
+                .queries
+                .connect()
+                .upsert_graphql_introspection(
+                    &req.workspace_id,
+                    &req.request_id,
+                    req.content,
+                    source,
+                )
+                .map_err(js_error)?;
+            to_json(saved)
+        }
+
+        // Nothing here can open a socket, so no connection ever produced any.
+        "models_grpc_events" | "models_websocket_events" => to_json(Vec::<()>::new()),
+
+        "cmd_get_workspace_meta" => {
+            let req: WorkspaceIdReq = from_js(payload)?;
+            let db = host.queries.connect();
+            let workspace = db.get_workspace(&req.workspace_id).map_err(js_error)?;
+            to_json(db.get_or_create_workspace_meta(&workspace.id).map_err(js_error)?)
+        }
+
+        other => Err(js_error(format!("yaak-web: `{other}` is not a command this host answers"))),
+    }
+}
+
+/* -------------------------------------------------------------------------- */
+/* Blobs                                                                       */
+/* -------------------------------------------------------------------------- */
+
+/// The bytes stored under an id, or none. Ids are the desktop's: a response's
+/// own id for its body, `{responseId}.request` for the request that produced
+/// it. Bytes cross to JS as a `Uint8Array` rather than through JSON.
+#[wasm_bindgen]
+pub fn blob_get(id: &str) -> Result<Option<Vec<u8>>> {
+    with_host(|host| {
+        let chunks = host.blobs.connect().get_chunks(id).map_err(js_error)?;
+        if chunks.is_empty() {
+            return Ok(None);
+        }
+        Ok(Some(chunks.into_iter().flat_map(|c| c.data).collect()))
+    })
+}
+
+/// Store bytes under an id, replacing anything already there. Chunked the way
+/// the desktop chunks, so a body written here reads back on a desktop that
+/// imports the database, and vice versa.
+#[wasm_bindgen]
+pub fn blob_put(id: &str, bytes: &[u8]) -> Result<()> {
+    const CHUNK: usize = 512 * 1024;
+    with_host(|host| {
+        let ctx = host.blobs.connect();
+        ctx.delete_chunks(id).map_err(js_error)?;
+        for (i, part) in bytes.chunks(CHUNK).enumerate() {
+            ctx.insert_chunk(&BodyChunk::new(id, i as i32, part.to_vec())).map_err(js_error)?;
+        }
+        Ok(())
+    })
+}
+
+#[wasm_bindgen]
+pub fn blob_delete(id: &str) -> Result<()> {
+    with_host(|host| host.blobs.connect().delete_chunks(id).map_err(js_error))
+}
@@ -6,6 +6,7 @@ publish = false

 [dependencies]
 async-trait = "0.1"
+base64 = "0.22.1" # For carrying body chunks over a text-only plugin transport
 log = { workspace = true }
 md5 = "0.8.0"
 serde_json = { workspace = true }
@@ -3,6 +3,7 @@ pub mod export;
 pub mod import;
 pub mod plugin_events;
 pub mod render;
+pub mod response_body;
 pub mod send;

 pub use error::Error;
@@ -1,3 +1,6 @@
+use crate::response_body::ResponseBodyStore;
+use base64::Engine;
+use base64::prelude::BASE64_STANDARD;
 use yaak_models::models::AnyModel;
 use yaak_models::query_manager::QueryManager;
 use yaak_models::util::UpdateSource;
@@ -5,12 +8,14 @@ use yaak_plugins::events::{
    CloseWindowRequest, CopyTextRequest, DeleteKeyValueRequest, DeleteKeyValueResponse,
    DeleteModelRequest, DeleteModelResponse, ErrorResponse, FindHttpResponsesRequest,
    FindHttpResponsesResponse, GetCookieValueRequest, GetHttpRequestByIdRequest,
-    GetHttpRequestByIdResponse, GetKeyValueRequest, GetKeyValueResponse, InternalEventPayload,
-    ListCookieNamesRequest, ListFoldersRequest, ListFoldersResponse, ListHttpRequestsRequest,
-    ListHttpRequestsResponse, ListOpenWorkspacesRequest, OpenExternalUrlRequest, OpenWindowRequest,
-    PromptFormRequest, PromptTextRequest, ReloadResponse, RenderGrpcRequestRequest,
-    RenderHttpRequestRequest, SendHttpRequestRequest, SetKeyValueRequest, ShowToastRequest,
-    TemplateRenderRequest, UpsertModelRequest, UpsertModelResponse, WindowInfoRequest,
+    GetHttpRequestByIdResponse, GetHttpResponseBodyInfoRequest, GetHttpResponseBodyInfoResponse,
+    GetKeyValueRequest, GetKeyValueResponse, InternalEventPayload, ListCookieNamesRequest,
+    ListFoldersRequest, ListFoldersResponse, ListHttpRequestsRequest, ListHttpRequestsResponse,
+    ListOpenWorkspacesRequest, OpenExternalUrlRequest, OpenWindowRequest, PromptFormRequest,
+    PromptTextRequest, ReadHttpResponseBodyChunkRequest, ReadHttpResponseBodyChunkResponse,
+    ReloadResponse, RenderGrpcRequestRequest, RenderHttpRequestRequest, SendHttpRequestRequest,
+    SetKeyValueRequest, ShowToastRequest, TemplateRenderRequest, UpsertModelRequest,
+    UpsertModelResponse, WindowInfoRequest,
 };

 pub struct SharedPluginEventContext<'a> {
@@ -40,6 +45,8 @@ pub enum SharedRequest<'a> {
    ListFolders(&'a ListFoldersRequest),
    ListHttpRequests(&'a ListHttpRequestsRequest),
    FindHttpResponses(&'a FindHttpResponsesRequest),
+    GetHttpResponseBodyInfo(&'a GetHttpResponseBodyInfoRequest),
+    ReadHttpResponseBodyChunk(&'a ReadHttpResponseBodyChunkRequest),
    UpsertModel(&'a UpsertModelRequest),
    DeleteModel(&'a DeleteModelRequest),
 }
@@ -136,6 +143,12 @@ impl<'a> From<&'a InternalEventPayload> for GroupedPluginRequest<'a> {
            InternalEventPayload::FindHttpResponsesRequest(req) => {
                GroupedPluginRequest::Shared(SharedRequest::FindHttpResponses(req))
            }
+            InternalEventPayload::GetHttpResponseBodyInfoRequest(req) => {
+                GroupedPluginRequest::Shared(SharedRequest::GetHttpResponseBodyInfo(req))
+            }
+            InternalEventPayload::ReadHttpResponseBodyChunkRequest(req) => {
+                GroupedPluginRequest::Shared(SharedRequest::ReadHttpResponseBodyChunk(req))
+            }
            InternalEventPayload::UpsertModelRequest(req) => {
                GroupedPluginRequest::Shared(SharedRequest::UpsertModel(req))
            }
@@ -182,13 +195,17 @@ impl<'a> From<&'a InternalEventPayload> for GroupedPluginRequest<'a> {

 pub fn handle_shared_plugin_event<'a>(
    query_manager: &QueryManager,
+    body_store: &dyn ResponseBodyStore,
    payload: &'a InternalEventPayload,
    context: SharedPluginEventContext<'_>,
 ) -> GroupedPluginEvent<'a> {
    match GroupedPluginRequest::from(payload) {
-        GroupedPluginRequest::Shared(req) => {
-            GroupedPluginEvent::Handled(Some(build_shared_reply(query_manager, req, context)))
-        }
+        GroupedPluginRequest::Shared(req) => GroupedPluginEvent::Handled(Some(build_shared_reply(
+            query_manager,
+            body_store,
+            req,
+            context,
+        ))),
        GroupedPluginRequest::Host(req) => GroupedPluginEvent::ToHandle(req),
        GroupedPluginRequest::Ignore => GroupedPluginEvent::Handled(None),
    }
@@ -196,6 +213,7 @@ pub fn handle_shared_plugin_event<'a>(

 fn build_shared_reply(
    query_manager: &QueryManager,
+    body_store: &dyn ResponseBodyStore,
    request: SharedRequest<'_>,
    context: SharedPluginEventContext<'_>,
 ) -> InternalEventPayload {
@@ -283,6 +301,30 @@ fn build_shared_reply(
                http_responses,
            })
        }
+        SharedRequest::GetHttpResponseBodyInfo(req) => match body_store.info(&req.response_id) {
+            Ok(info) => InternalEventPayload::GetHttpResponseBodyInfoResponse(
+                GetHttpResponseBodyInfoResponse {
+                    content_length: info.content_length,
+                    content_type: info.content_type,
+                },
+            ),
+            Err(err) => InternalEventPayload::ErrorResponse(ErrorResponse {
+                error: format!("Failed to read body of response {}: {err}", req.response_id),
+            }),
+        },
+        SharedRequest::ReadHttpResponseBodyChunk(req) => {
+            match body_store.read_chunk(&req.response_id, req.offset, req.length) {
+                Ok(bytes) => InternalEventPayload::ReadHttpResponseBodyChunkResponse(
+                    ReadHttpResponseBodyChunkResponse {
+                        length: bytes.len() as u64,
+                        data: BASE64_STANDARD.encode(bytes),
+                    },
+                ),
+                Err(err) => InternalEventPayload::ErrorResponse(ErrorResponse {
+                    error: format!("Failed to read body of response {}: {err}", req.response_id),
+                }),
+            }
+        }
        SharedRequest::UpsertModel(req) => {
            use AnyModel::*;

@@ -437,10 +479,26 @@ fn build_shared_reply(
 #[cfg(test)]
 mod tests {
    use super::*;
+    use crate::response_body::{FileResponseBodyStore, ResponseBodyInfo};
+    use std::cell::RefCell;
    use tempfile::TempDir;
    use yaak_models::models::{AnyModel, Folder, HttpRequest, Workspace};
    use yaak_models::util::UpdateSource;

+    /// The real dispatch, with the store the desktop and CLI hand it.
+    fn dispatch<'a>(
+        query_manager: &QueryManager,
+        payload: &'a InternalEventPayload,
+        context: SharedPluginEventContext<'_>,
+    ) -> GroupedPluginEvent<'a> {
+        handle_shared_plugin_event(
+            query_manager,
+            &FileResponseBodyStore::new(query_manager),
+            payload,
+            context,
+        )
+    }
+
    fn seed_query_manager() -> (QueryManager, TempDir) {
        let temp_dir = TempDir::new().expect("Failed to create temp dir");
        let db_path = temp_dir.path().join("db.sqlite");
@@ -498,7 +556,7 @@ mod tests {
        let payload = InternalEventPayload::ListHttpRequestsRequest(
            yaak_plugins::events::ListHttpRequestsRequest { folder_id: None },
        );
-        let result = handle_shared_plugin_event(
+        let result = dispatch(
            &query_manager,
            &payload,
            SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
@@ -517,7 +575,7 @@ mod tests {
        let by_workspace_payload = InternalEventPayload::ListHttpRequestsRequest(
            yaak_plugins::events::ListHttpRequestsRequest { folder_id: None },
        );
-        let by_workspace = handle_shared_plugin_event(
+        let by_workspace = dispatch(
            &query_manager,
            &by_workspace_payload,
            SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: Some("wk_test") },
@@ -536,7 +594,7 @@ mod tests {
                folder_id: Some("fl_test".to_string()),
            },
        );
-        let by_folder = handle_shared_plugin_event(
+        let by_folder = dispatch(
            &query_manager,
            &by_folder_payload,
            SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
@@ -559,7 +617,7 @@ mod tests {
            limit: Some(1),
        });

-        let result = handle_shared_plugin_event(
+        let result = dispatch(
            &query_manager,
            &payload,
            SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: Some("wk_test") },
@@ -575,6 +633,104 @@ mod tests {
        }
    }

+    /// A store that answers from memory, standing in for whatever holds the
+    /// bytes — the point being that the dispatch below never learns which.
+    struct FakeBodyStore {
+        body: Vec<u8>,
+        reads: RefCell<Vec<(u64, u64)>>,
+    }
+
+    impl ResponseBodyStore for FakeBodyStore {
+        fn info(&self, _response_id: &str) -> crate::error::Result<ResponseBodyInfo> {
+            Ok(ResponseBodyInfo {
+                content_length: self.body.len() as u64,
+                content_type: Some("text/plain; charset=utf-8".to_string()),
+            })
+        }
+
+        fn read_chunk(
+            &self,
+            _response_id: &str,
+            offset: u64,
+            length: u64,
+        ) -> crate::error::Result<Vec<u8>> {
+            self.reads.borrow_mut().push((offset, length));
+            let start = (offset as usize).min(self.body.len());
+            let end = (start + length as usize).min(self.body.len());
+            Ok(self.body[start..end].to_vec())
+        }
+    }
+
+    #[test]
+    fn response_body_is_read_by_id_through_the_store() {
+        let (query_manager, _temp_dir) = seed_query_manager();
+        let store = FakeBodyStore { body: b"hello".to_vec(), reads: RefCell::new(Vec::new()) };
+
+        let info_payload = InternalEventPayload::GetHttpResponseBodyInfoRequest(
+            GetHttpResponseBodyInfoRequest { response_id: "rs_test".to_string() },
+        );
+        let info = handle_shared_plugin_event(
+            &query_manager,
+            &store,
+            &info_payload,
+            SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
+        );
+        match info {
+            GroupedPluginEvent::Handled(Some(
+                InternalEventPayload::GetHttpResponseBodyInfoResponse(resp),
+            )) => {
+                assert_eq!(resp.content_length, 5);
+                assert_eq!(resp.content_type.as_deref(), Some("text/plain; charset=utf-8"));
+            }
+            other => panic!("unexpected body info result: {other:?}"),
+        }
+
+        let chunk_payload = InternalEventPayload::ReadHttpResponseBodyChunkRequest(
+            ReadHttpResponseBodyChunkRequest {
+                response_id: "rs_test".to_string(),
+                offset: 1,
+                length: 3,
+            },
+        );
+        let chunk = handle_shared_plugin_event(
+            &query_manager,
+            &store,
+            &chunk_payload,
+            SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
+        );
+        match chunk {
+            GroupedPluginEvent::Handled(Some(
+                InternalEventPayload::ReadHttpResponseBodyChunkResponse(resp),
+            )) => {
+                assert_eq!(resp.length, 3);
+                assert_eq!(BASE64_STANDARD.decode(resp.data).unwrap(), b"ell");
+            }
+            other => panic!("unexpected body chunk result: {other:?}"),
+        }
+
+        assert_eq!(*store.reads.borrow(), vec![(1, 3)]);
+    }
+
+    #[test]
+    fn an_unreadable_response_body_becomes_an_error_reply() {
+        let (query_manager, _temp_dir) = seed_query_manager();
+        let payload = InternalEventPayload::GetHttpResponseBodyInfoRequest(
+            GetHttpResponseBodyInfoRequest { response_id: "rs_never_persisted".to_string() },
+        );
+        let result = dispatch(
+            &query_manager,
+            &payload,
+            SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
+        );
+
+        match result {
+            GroupedPluginEvent::Handled(Some(InternalEventPayload::ErrorResponse(resp))) => {
+                assert!(resp.error.contains("rs_never_persisted"), "unhelpful error: {}", resp.error)
+            }
+            other => panic!("unexpected missing-response result: {other:?}"),
+        }
+    }
+
    #[test]
    fn upsert_and_delete_model_are_shared_handled() {
        let (query_manager, _temp_dir) = seed_query_manager();
@@ -590,7 +746,7 @@ mod tests {
            }),
        });

-        let upsert_result = handle_shared_plugin_event(
+        let upsert_result = dispatch(
            &query_manager,
            &upsert_payload,
            SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: Some("wk_test") },
@@ -609,7 +765,7 @@ mod tests {
            model: "http_request".to_string(),
            id: "rq_test".to_string(),
        });
-        let delete_result = handle_shared_plugin_event(
+        let delete_result = dispatch(
            &query_manager,
            &delete_payload,
            SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: Some("wk_test") },
@@ -631,7 +787,7 @@ mod tests {
        let payload = InternalEventPayload::WindowInfoRequest(WindowInfoRequest {
            label: "main".to_string(),
        });
-        let result = handle_shared_plugin_event(
+        let result = dispatch(
            &query_manager,
            &payload,
            SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
@@ -0,0 +1,210 @@
+//! Reading response bodies back out, by response id.
+//!
+//! Plugins only ever name a response. Where its bytes actually live — files the
+//! engine wrote under `<data dir>/responses/<id>` today, blob rows later — is
+//! behind [`ResponseBodyStore`], so moving the bytes is a change to this file
+//! and nothing a plugin can see.
+//!
+//! Only saved responses are reachable by id. A send that saved nothing hands
+//! its body back with the reply instead, which is the only copy of it there is.
+
+use crate::error::Result;
+use std::fs::File;
+use std::io::{Read, Seek, SeekFrom};
+use yaak_models::query_manager::QueryManager;
+
+/// The most bytes one read will hand back, however much was asked for.
+///
+/// A chunk is buffered whole and, on the desktop transport, base64'd into a
+/// single WebSocket frame, so an unbounded request is a way to make the host
+/// allocate on a plugin's say-so.
+pub const MAX_CHUNK_BYTES: u64 = 8 * 1024 * 1024;
+
+/// What a stored body is, without reading any of it.
+#[derive(Debug, Clone, Default)]
+pub struct ResponseBodyInfo {
+    /// Bytes actually stored, which is not necessarily what `Content-Length`
+    /// claimed. Zero when the response has no body.
+    pub content_length: u64,
+    /// The response's `Content-Type` header, verbatim.
+    pub content_type: Option<String>,
+}
+
+/// Somewhere response bodies can be read from, a window at a time.
+///
+/// Reads are repeatable — the bytes are durable, so nothing is consumed by
+/// looking at it.
+pub trait ResponseBodyStore {
+    fn info(&self, response_id: &str) -> Result<ResponseBodyInfo>;
+
+    /// Bytes `[offset, offset + length)`, clamped to what is there. A short
+    /// read means the body ended.
+    fn read_chunk(&self, response_id: &str, offset: u64, length: u64) -> Result<Vec<u8>>;
+}
+
+/// The desktop and CLI store: the database says where the file is, and the
+/// filesystem holds it.
+pub struct FileResponseBodyStore<'a> {
+    query_manager: &'a QueryManager,
+}
+
+impl<'a> FileResponseBodyStore<'a> {
+    pub fn new(query_manager: &'a QueryManager) -> Self {
+        Self { query_manager }
+    }
+
+    /// The file backing a response, or `None` when it stored no body.
+    ///
+    /// Only responses the store knows about are reachable here. A send with no
+    /// request behind it never reaches the store at all, and its bytes come
+    /// back from the send instead — see `SendHttpRequestResponse::body`.
+    fn body_path(&self, response_id: &str) -> Result<Option<String>> {
+        Ok(self.query_manager.connect().get_http_response(response_id)?.body_path)
+    }
+}
+
+impl ResponseBodyStore for FileResponseBodyStore<'_> {
+    fn info(&self, response_id: &str) -> Result<ResponseBodyInfo> {
+        let response = self.query_manager.connect().get_http_response(response_id)?;
+
+        let content_type = response
+            .headers
+            .iter()
+            .find(|h| h.name.eq_ignore_ascii_case("content-type"))
+            .map(|h| h.value.clone());
+
+        let content_length = match response.body_path {
+            Some(path) => std::fs::metadata(path)?.len(),
+            None => 0,
+        };
+
+        Ok(ResponseBodyInfo { content_length, content_type })
+    }
+
+    fn read_chunk(&self, response_id: &str, offset: u64, length: u64) -> Result<Vec<u8>> {
+        let Some(path) = self.body_path(response_id)? else {
+            return Ok(Vec::new());
+        };
+
+        let length = length.min(MAX_CHUNK_BYTES);
+        if length == 0 {
+            return Ok(Vec::new());
+        }
+
+        let mut file = File::open(path)?;
+        file.seek(SeekFrom::Start(offset))?;
+
+        let mut buf = Vec::new();
+        file.take(length).read_to_end(&mut buf)?;
+        Ok(buf)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::io::Write;
+    use tempfile::TempDir;
+    use yaak_models::models::{HttpRequest, HttpResponse, HttpResponseHeader, Workspace};
+    use yaak_models::util::UpdateSource;
+
+    fn seed(body: Option<&[u8]>) -> (QueryManager, TempDir, String) {
+        let temp_dir = TempDir::new().unwrap();
+        let (query_manager, blob_manager, _rx) = yaak_models::init_standalone(
+            &temp_dir.path().join("db.sqlite"),
+            &temp_dir.path().join("blobs.sqlite"),
+        )
+        .unwrap();
+
+        query_manager
+            .connect()
+            .upsert_workspace(
+                &Workspace { id: "wk_test".to_string(), ..Default::default() },
+                &UpdateSource::Sync,
+            )
+            .unwrap();
+
+        query_manager
+            .connect()
+            .upsert_http_request(
+                &HttpRequest {
+                    id: "rq_test".to_string(),
+                    workspace_id: "wk_test".to_string(),
+                    ..Default::default()
+                },
+                &UpdateSource::Sync,
+            )
+            .unwrap();
+
+        let body_path = body.map(|bytes| {
+            let path = temp_dir.path().join("body");
+            let mut f = std::fs::File::create(&path).unwrap();
+            f.write_all(bytes).unwrap();
+            path.to_string_lossy().to_string()
+        });
+
+        let response = query_manager
+            .connect()
+            .upsert_http_response(
+                &HttpResponse {
+                    workspace_id: "wk_test".to_string(),
+                    request_id: "rq_test".to_string(),
+                    body_path,
+                    headers: vec![HttpResponseHeader {
+                        name: "Content-Type".to_string(),
+                        value: "application/json; charset=utf-8".to_string(),
+                    }],
+                    ..Default::default()
+                },
+                &UpdateSource::Sync,
+                &blob_manager,
+            )
+            .unwrap();
+
+        let id = response.id.clone();
+        (query_manager, temp_dir, id)
+    }
+
+    #[test]
+    fn info_reports_stored_size_and_content_type() {
+        let (qm, _tmp, id) = seed(Some(b"hello world"));
+        let info = FileResponseBodyStore::new(&qm).info(&id).unwrap();
+        assert_eq!(info.content_length, 11);
+        assert_eq!(info.content_type.as_deref(), Some("application/json; charset=utf-8"));
+    }
+
+    #[test]
+    fn chunks_cover_the_body_and_stop_short_at_the_end() {
+        let (qm, _tmp, id) = seed(Some(b"hello world"));
+        let store = FileResponseBodyStore::new(&qm);
+        assert_eq!(store.read_chunk(&id, 0, 5).unwrap(), b"hello");
+        assert_eq!(store.read_chunk(&id, 6, 100).unwrap(), b"world");
+        assert!(store.read_chunk(&id, 11, 100).unwrap().is_empty());
+        // Reading the same window twice gives the same bytes; nothing is consumed.
+        assert_eq!(store.read_chunk(&id, 0, 5).unwrap(), b"hello");
+    }
+
+    #[test]
+    fn a_response_with_no_body_is_empty_not_an_error() {
+        let (qm, _tmp, id) = seed(None);
+        let store = FileResponseBodyStore::new(&qm);
+        assert_eq!(store.info(&id).unwrap().content_length, 0);
+        assert!(store.read_chunk(&id, 0, 100).unwrap().is_empty());
+    }
+
+    #[test]
+    fn an_unknown_response_fails() {
+        let (qm, _tmp, _id) = seed(Some(b"hi"));
+        assert!(FileResponseBodyStore::new(&qm).info("rs_nope").is_err());
+    }
+
+    #[test]
+    fn an_unsaved_response_is_not_reachable_by_id() {
+        // Its bytes rode back with the send; there is nothing here to find, and
+        // guessing at a file named for the id is exactly what this must not do.
+        let (qm, tmp, _id) = seed(Some(b"hi"));
+        std::fs::write(tmp.path().join("rs_ephemeral1"), b"access_token=abc").unwrap();
+
+        assert!(FileResponseBodyStore::new(&qm).info("rs_ephemeral1").is_err());
+    }
+}
@@ -354,6 +354,19 @@ pub enum ResponseBody {
    Returned(Vec<u8>),
 }

+impl ResponseBody {
+    /// The bytes, when this is the only copy of them.
+    ///
+    /// Stored and streamed bodies belong to whoever holds them; only `Returned`
+    /// has to travel back to the caller.
+    pub fn returned_bytes(&self) -> Option<&[u8]> {
+        match self {
+            ResponseBody::Returned(bytes) => Some(bytes),
+            ResponseBody::Stored | ResponseBody::Streamed => None,
+        }
+    }
+}
+
 pub struct SendHttpRequestResult {
    pub rendered_request: HttpRequest,
    pub response: HttpResponse,
@@ -0,0 +1,3 @@
+{
+  "ignorePatterns": "crates/yaak-templates/pkg/**\ncrates/yaak-web/pkg/**\n**/bindings/gen_*.ts\npackage-lock.json\nCargo.lock"
+}
@@ -59,6 +59,7 @@
        "crates-tauri/yaak-fonts",
        "crates-tauri/yaak-license",
        "crates-tauri/yaak-mac-window",
+        "crates/common/yaak-rpc-schema",
        "crates/yaak-crypto",
        "crates/yaak-git",
        "crates/yaak-models",
@@ -66,6 +67,7 @@
        "crates/yaak-sse",
        "crates/yaak-sync",
        "crates/yaak-templates",
+        "crates/yaak-web",
        "crates/yaak-ws",
        "crates-proxy/yaak-proxy-lib",
        "apps/yaak-client",
@@ -290,6 +292,10 @@
      "name": "@yaakapp-internal/mac-window",
      "version": "1.0.0"
    },
+    "crates/common/yaak-rpc-schema": {
+      "name": "@yaakapp-internal/rpc-schema",
+      "version": "1.0.0"
+    },
    "crates/yaak-crypto": {
      "name": "@yaakapp-internal/crypto",
      "version": "1.0.0"
@@ -324,6 +330,13 @@
        "rimraf": "^6.1.2"
      }
    },
+    "crates/yaak-web": {
+      "name": "@yaakapp-internal/web",
+      "version": "1.0.0",
+      "devDependencies": {
+        "rimraf": "^6.1.2"
+      }
+    },
    "crates/yaak-ws": {
      "name": "@yaakapp-internal/ws",
      "version": "1.0.0"
@@ -5753,6 +5766,10 @@
      "resolved": "crates-proxy/yaak-proxy-lib",
      "link": true
    },
+    "node_modules/@yaakapp-internal/rpc-schema": {
+      "resolved": "crates/common/yaak-rpc-schema",
+      "link": true
+    },
    "node_modules/@yaakapp-internal/sse": {
      "resolved": "crates/yaak-sse",
      "link": true
@@ -5785,6 +5802,10 @@
      "resolved": "packages/ui",
      "link": true
    },
+    "node_modules/@yaakapp-internal/web": {
+      "resolved": "crates/yaak-web",
+      "link": true
+    },
    "node_modules/@yaakapp-internal/ws": {
      "resolved": "crates/yaak-ws",
      "link": true
@@ -17189,7 +17210,8 @@
        "@tauri-apps/plugin-dialog": "^2.7.1",
        "@tauri-apps/plugin-fs": "^2.5.1",
        "@tauri-apps/plugin-opener": "^2.5.4",
-        "@tauri-apps/plugin-os": "^2.3.2"
+        "@tauri-apps/plugin-os": "^2.3.2",
+        "@yaakapp-internal/rpc-schema": "^1.0.0"
      }
    },
    "packages/plugin-runtime": {
@@ -17204,7 +17226,7 @@
    },
    "packages/plugin-runtime-types": {
      "name": "@yaakapp/api",
-      "version": "0.8.0",
+      "version": "0.9.0",
      "dependencies": {
        "@types/node": "^24.0.13"
      },
@@ -58,6 +58,7 @@
    "crates-tauri/yaak-fonts",
    "crates-tauri/yaak-license",
    "crates-tauri/yaak-mac-window",
+    "crates/common/yaak-rpc-schema",
    "crates/yaak-crypto",
    "crates/yaak-git",
    "crates/yaak-models",
@@ -65,6 +66,7 @@
    "crates/yaak-sse",
    "crates/yaak-sync",
    "crates/yaak-templates",
+    "crates/yaak-web",
    "crates/yaak-ws",
    "crates-proxy/yaak-proxy-lib",
    "apps/yaak-client",
@@ -9,6 +9,8 @@
    "lint": "tsc --noEmit"
  },
  "dependencies": {
+    "@yaakapp-internal/rpc-schema": "^1.0.0",
+    "@yaakapp-internal/web": "^1.0.0",
    "@tauri-apps/api": "^2.11.0",
    "@tauri-apps/plugin-clipboard-manager": "^2.3.2",
    "@tauri-apps/plugin-dialog": "^2.7.1",
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Gregory Schier	0f8413c441	Read OAuth 2.0 token responses from the send instead of the filesystem Both token requests opened HttpResponse.bodyPath with readFileSync, which ties the plugin to bodies living on a filesystem. The send now hands the body back, so they read it from there and keep working once bodies move into the blob DB and in the browser Worker, where there is no fs to read. text() on a response with no body returns "", which is what the bodyPath check produced, so an empty response still parses to {} rather than throwing.	2026-08-16 10:09:43 -07:00
Gregory Schier	0e14625e62	Hand the body back from send instead of holding it for a lookup Holding an unsaved body against its response id let a plugin stash the id and read it in a later call, which would throw only sometimes and only for ad-hoc sends. Documenting that was never going to be enough. send now returns the response and its body together, so there is nothing to stash: an unsaved body is a value you were handed. ctx.httpResponse .body() goes back to meaning one thing, a saved response read by id, and refuses ids it has no row for. Reading is identical either way, so no caller has to know which kind of send it made.	2026-08-16 10:07:44 -07:00
Gregory Schier	8c72538102	Say on send() that an unsaved response's body is call-scoped	2026-08-16 10:00:35 -07:00
Gregory Schier	ffa6a610b8	Return the body of a send that saved nothing Replaces the response-directory fallback with what the frontend already does for ephemeral sends: the engine hands the body back, because it is the only copy. Guessing at a file named for an id was the store reaching around its own abstraction, and it is exactly what must not survive the move to blob storage. The send reply carries the bytes when the engine returned them, and the runtime holds them for the rest of the call that sent them, so ctx.httpResponse.body() answers for a saved and an unsaved response the same way. Unsaved ones now report a real contentType too, taken from the response the send already handed back.	2026-08-16 09:54:56 -07:00
Gregory Schier	8b031db685	Read bodies of responses the engine never recorded A send with no request behind it — a plugin's ad-hoc ctx.httpRequest.send, GraphQL introspection — gets a generated id and a body file, but no row. Resolving purely through the database refused those, which would have broken auth-oauth2 the moment it moved off readFileSync, since every request it sends is ad-hoc. The store now falls back to the response directory when there is no row, accepting only ids shaped the way the engine generates them. Such a response has no stored headers, so contentType is null and text() decodes as UTF-8 — which is what the filesystem readers did anyway.	2026-08-16 09:35:03 -07:00
Gregory Schier	96c8a95094	Add a plugin API for reading HTTP response bodies Plugins read bodies by response id through ctx.httpResponse.body() instead of opening HttpResponse.bodyPath themselves. The accessors are named after fetch's, minus the single-use semantics, since the bytes are durable and re-reading should work. Underneath is a chunked pull over the existing plugin protocol, so the host can move bodies off the filesystem without plugins noticing. text() now decodes with the response's charset rather than assuming UTF-8, and the buffering accessors refuse past 32 MiB and point at chunks().	2026-08-16 09:20:29 -07:00
Gregory SchierandGitHub	6a02cbe525	Add a Host trait and move DB/model commands off Tauri (#558 )	2026-08-16 08:41:35 -07:00
Gregory SchierandGitHub	6f91f76064	Run the desktop's model layer in the browser (#557 )	2026-08-16 07:34:48 -07:00
Gregory SchierandGitHub	32e92d484b	Let yaak-models compile for wasm32-unknown-unknown (#556 )	2026-08-15 14:55:54 -07:00
Gregory SchierandGitHub	cdbbef34f8	Fix native TLS client certificates on Linux (#554 )	2026-08-15 11:36:36 -07:00
Gregory Schier GitHub Claude Fable 5	4838353585	Move the RPC wire schema into a Tauri-free crate (#553 ) Co-authored-by: Claude Fable 5 <noreply@anthropic.com>	2026-08-15 11:25:27 -07:00
Gregory SchierandGitHub	93001e3da7	Extract generic model writes into yaak::models_ops (#552 )	2026-08-15 11:01:41 -07:00