diff --git a/src/main/sessionToolingConfig.ts b/src/main/sessionToolingConfig.ts
new file mode 100644
index 0000000..81cfdc3
--- /dev/null
+++ b/src/main/sessionToolingConfig.ts
@@ -0,0 +1,100 @@
+import type {
+  RunTurnLspProfileConfig,
+  RunTurnMcpServerConfig,
+  RunTurnToolingConfig,
+} from '@shared/contracts/sidecar';
+import type {
+  LspProfileDefinition,
+  McpServerDefinition,
+  SessionToolingSelection,
+  WorkspaceToolingSettings,
+} from '@shared/domain/tooling';
+
+export function validateSessionToolingSelectionIds(
+  tooling: WorkspaceToolingSettings,
+  selection: SessionToolingSelection,
+): void {
+  const knownMcpServerIds = new Set(tooling.mcpServers.map((server) => server.id));
+  const unknownMcpServerIds = selection.enabledMcpServerIds.filter((id) => !knownMcpServerIds.has(id));
+  if (unknownMcpServerIds.length > 0) {
+    throw new Error(`Unknown MCP server "${unknownMcpServerIds[0]}".`);
+  }
+
+  const knownLspProfileIds = new Set(tooling.lspProfiles.map((profile) => profile.id));
+  const unknownLspProfileIds = selection.enabledLspProfileIds.filter((id) => !knownLspProfileIds.has(id));
+  if (unknownLspProfileIds.length > 0) {
+    throw new Error(`Unknown LSP profile "${unknownLspProfileIds[0]}".`);
+  }
+}
+
+export function buildRunTurnToolingConfig(
+  tooling: WorkspaceToolingSettings,
+  selection: SessionToolingSelection,
+): RunTurnToolingConfig | undefined {
+  const mcpServersById = new Map<string, McpServerDefinition>(
+    tooling.mcpServers.map((server) => [server.id, server]),
+  );
+  const lspProfilesById = new Map<string, LspProfileDefinition>(
+    tooling.lspProfiles.map((profile) => [profile.id, profile]),
+  );
+
+  const mcpServers = selection.enabledMcpServerIds.flatMap((id): RunTurnMcpServerConfig[] => {
+    const server = mcpServersById.get(id);
+    if (!server) {
+      return [];
+    }
+
+    if (server.transport === 'local') {
+      return [
+        {
+          id: server.id,
+          name: server.name,
+          transport: 'local',
+          tools: [...server.tools],
+          timeoutMs: server.timeoutMs,
+          command: server.command,
+          args: [...server.args],
+          cwd: server.cwd,
+        },
+      ];
+    }
+
+    return [
+      {
+        id: server.id,
+        name: server.name,
+        transport: server.transport,
+        tools: [...server.tools],
+        timeoutMs: server.timeoutMs,
+        url: server.url,
+      },
+    ];
+  });
+
+  const lspProfiles = selection.enabledLspProfileIds.flatMap((id): RunTurnLspProfileConfig[] => {
+    const profile = lspProfilesById.get(id);
+    if (!profile) {
+      return [];
+    }
+
+    return [
+      {
+        id: profile.id,
+        name: profile.name,
+        command: profile.command,
+        args: [...profile.args],
+        languageId: profile.languageId,
+        fileExtensions: [...profile.fileExtensions],
+      },
+    ];
+  });
+
+  if (mcpServers.length === 0 && lspProfiles.length === 0) {
+    return undefined;
+  }
+
+  return {
+    mcpServers,
+    lspProfiles,
+  };
+}
diff --git a/src/renderer/components/Sidebar.tsx b/src/renderer/components/Sidebar.tsx
index 91b8166..c13b2d9 100644
--- a/src/renderer/components/Sidebar.tsx
+++ b/src/renderer/components/Sidebar.tsx
@@ -528,7 +528,7 @@ export function Sidebar({
           <div>
             <span className="text-sm font-semibold text-zinc-100">eryx</span>
             <span className="ml-1.5 rounded bg-zinc-800 px-1 py-0.5 text-[9px] font-medium text-zinc-500">
-              BETA
+              ALPHA
             </span>
           </div>
         </div>
diff --git a/src/renderer/styles.css b/src/renderer/styles.css
index 58b3ef7..e44ed78 100644
--- a/src/renderer/styles.css
+++ b/src/renderer/styles.css
@@ -10,8 +10,8 @@
   --color-accent: #6366f1;
   --color-accent-hover: #818cf8;
   --color-accent-muted: rgba(99, 102, 241, 0.15);
-  --text-pill: 0.5rem;
-  --text-pill--line-height: 1;
+  --text-pill: 0.6875rem;
+  --text-pill--line-height: 1.2;
 }
 
 :root {
@@ -71,13 +71,6 @@ body {
   min-height: 100vh;
 }
 
-button,
-input,
-select,
-textarea {
-  font: inherit;
-}
-
 /* Scrollbar styling */
 ::-webkit-scrollbar {
   width: 6px;