refactor: retire SDK-superseded code-mode scaffolding and rehome cell admission

.github/dependabot.yml

@@ -12,10 +12,12 @@ updates:
         update-types:
           - minor
           - patch
-    # packages/code-mode depends on the typescript JS API (transpileModule,
-    # ScriptTarget, …) at runtime; the 6.0+ native compiler removed those
-    # exports, so the package stays pinned to 5.9. The workspace root already
-    # compiles on 7.x, so ignoring >=6 only affects that runtime pin.
+    # Retained from when an in-house Code Mode transpiler used the typescript
+    # JS API (transpileModule, ScriptTarget, …) at runtime and had to stay on
+    # 5.9, since the 6.0+ native compiler removed those exports. That
+    # transpiler is gone — @ai-sdk/code-mode owns transpilation now, and no
+    # workspace pins typescript — so this ignore no longer has a subject.
+    # Dropping it is a dependency-policy call, not this refactor's to make.
     ignore:
       - dependency-name: 'typescript'
         versions:

.github/workflows/windows-sandbox-w0.yml

@@ -77,8 +77,6 @@ jobs:
         run: npm run build --workspace @maka/core
       - name: Build storage workspace
         run: npm run build --workspace @maka/storage
-      - name: Build code-mode workspace
-        run: npm run build --workspace @maka/code-mode
       - name: Build runtime workspace
         run: npm run build --workspace @maka/runtime
       - name: Run real filesystem-worker operations through the broker

apps/desktop/package.json

@@ -25,7 +25,7 @@
     "build:preload": "esbuild src/preload/preload.ts --bundle --platform=node --format=cjs --outfile=dist/preload/preload.cjs --external:electron",
     "build:overlay": "node ../../scripts/build-cursor-overlay.mjs",
     "build:renderer": "vite build && node ../../scripts/check-third-party-notices.mjs",
-    "build:workspace-deps": "npm --workspace @maka/code-mode run build && npm --workspace @maka/core run build && npm --workspace @maka/storage run build && npm --workspace @maka/mcp run build && npm --workspace @maka/runtime run build && npm --workspace @maka/runtime-host run build && npm --workspace @maka/computer-use run build && npm --workspace @maka/ui run build",
+    "build:workspace-deps": "npm --workspace @maka/core run build && npm --workspace @maka/storage run build && npm --workspace @maka/mcp run build && npm --workspace @maka/runtime run build && npm --workspace @maka/runtime-host run build && npm --workspace @maka/computer-use run build && npm --workspace @maka/ui run build",
     "package:macos-arm64": "electron-builder --config electron-builder.config.mjs --mac --arm64 --publish never",
     "package:windows-x64": "electron-builder --config electron-builder.config.mjs --win --x64 --publish never",
     "typecheck": "tsc -p tsconfig.preload.json --noEmit && tsc -p tsconfig.main.json --noEmit && tsc -p tsconfig.renderer.json --noEmit && tsc -p tsconfig.storybook.json --noEmit",

package.json

@@ -9,7 +9,6 @@
   "packageManager": "npm@11.19.0",
   "type": "module",
   "workspaces": [
-    "packages/code-mode",
     "packages/core",
     "packages/storage",
     "packages/mcp",
@@ -33,8 +32,8 @@
     "dev": "npm --workspace @maka/desktop run dev:hmr --",
     "dev:full": "npm run build && npm --workspace @maka/desktop run start",
     "cli:dev": "node packages/cli/dist/dev-cli.js",
-    "build": "npm --workspace @maka/code-mode run build && npm --workspace @maka/core run build && npm --workspace @maka/storage run build && npm --workspace @maka/mcp run build && npm --workspace @maka/runtime run build && npm --workspace @maka/runtime-host run build && npm --workspace @maka/computer-use run build && npm --workspace @maka/eval run build && npm --workspace maka-agent run build && npm --workspace @maka/ui run build && npm --workspace @maka/desktop run build",
-    "build:test": "npm run clean && npm --workspace @maka/code-mode run build && npm --workspace @maka/core run build && npm --workspace @maka/storage run build && npm --workspace @maka/mcp run build && npm --workspace @maka/runtime run build && npm --workspace @maka/runtime-host run build && npm --workspace @maka/computer-use run build && npm --workspace @maka/eval run build && npm --workspace maka-agent run build && npm --workspace @maka/ui run build && npm --workspace @maka/desktop run build:test",
+    "build": "npm --workspace @maka/core run build && npm --workspace @maka/storage run build && npm --workspace @maka/mcp run build && npm --workspace @maka/runtime run build && npm --workspace @maka/runtime-host run build && npm --workspace @maka/computer-use run build && npm --workspace @maka/eval run build && npm --workspace maka-agent run build && npm --workspace @maka/ui run build && npm --workspace @maka/desktop run build",
+    "build:test": "npm run clean && npm --workspace @maka/core run build && npm --workspace @maka/storage run build && npm --workspace @maka/mcp run build && npm --workspace @maka/runtime run build && npm --workspace @maka/runtime-host run build && npm --workspace @maka/computer-use run build && npm --workspace @maka/eval run build && npm --workspace maka-agent run build && npm --workspace @maka/ui run build && npm --workspace @maka/desktop run build:test",
     "clean": "node scripts/clean-build.mjs",
     "rebuild": "npm run clean && npm run build",
     "check:stale": "node scripts/check-stale-dist.mjs",

packages/cli/package.json

@@ -13,7 +13,7 @@
     "clean": "node ../../scripts/clean-paths.mjs dist tsconfig.tsbuildinfo",
     "build": "tsc -p tsconfig.json && node scripts/chmod-bin.mjs",
     "typecheck": "tsc -p tsconfig.json --noEmit",
-    "pretest": "npm --workspace @maka/code-mode run build && npm --workspace @maka/core run build && npm --workspace @maka/storage run build && npm --workspace @maka/mcp run build && npm --workspace @maka/runtime run build && npm --workspace @maka/runtime-host run build && npm --workspace @maka/eval run build",
+    "pretest": "npm --workspace @maka/core run build && npm --workspace @maka/storage run build && npm --workspace @maka/mcp run build && npm --workspace @maka/runtime run build && npm --workspace @maka/runtime-host run build && npm --workspace @maka/eval run build",
     "test": "npm run clean && npm run build && npm run test:dist",
     "test:dist": "node --test \"dist/**/*.test.js\""
   },

packages/core/package.json

@@ -42,6 +42,7 @@
     "./permission-profile": "./dist/permission-profile.js",
     "./windows-path": "./dist/windows-path.js",
     "./sandbox-boundary": "./dist/sandbox-boundary.js",
+    "./serialized-byte-length": "./dist/serialized-byte-length.js",
     "./permission-profile-compiler": "./dist/permission-profile-compiler.js",
     "./user-question": "./dist/user-question.js",
     "./connections": "./dist/connections.js",

packages/core/src/__tests__/serialized-byte-length.test.ts

@@ -0,0 +1,65 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { serializedByteLength } from '../serialized-byte-length.js';
+
+test('counts the bounded JSON representation used at the tool boundary', () => {
+  let inspectedPastLimit = false;
+  const trailing = Object.defineProperty({}, 'value', {
+    enumerable: true,
+    get: () => {
+      inspectedPastLimit = true;
+      throw new Error('must not inspect values after the byte limit');
+    },
+  });
+
+  assert.equal(serializedByteLength('\0'.repeat(10)), 62);
+  assert.equal(serializedByteLength(['x'.repeat(128), trailing], 32), 33);
+  assert.equal(inspectedPastLimit, false);
+});
+
+test('agrees with JSON.stringify on the payloads validation bounds', () => {
+  const payloads: unknown[] = [
+    { fileSystem: { entries: [{ path: '/tmp/工作区', scope: 'subtree', access: 'write' }] } },
+    { network: { enabled: true } },
+    { kind: 'managed', profile: { roots: [] }, revision: 3 },
+    // Every two-byte escape, so dropping one from the escape set and falling
+    // back to \\uXXXX shows up as a byte-count disagreement.
+    { text: 'tab\tnewline\nreturn\rbackspace\bformfeed\fquote"backslash\\ emoji😀 lone\ud800' },
+    [],
+    {},
+  ];
+
+  for (const payload of payloads) {
+    assert.equal(
+      serializedByteLength(payload),
+      new TextEncoder().encode(JSON.stringify(payload)).byteLength,
+      JSON.stringify(payload),
+    );
+  }
+});
+
+test('pins the deliberate departure from JSON.stringify at the top level', () => {
+  // `JSON.stringify(undefined)` is unrepresentable, but an absent result is not
+  // an oversized one: four bytes conservatively bounds what callers publish in
+  // its place. Reporting infinity here would read downstream as "result too
+  // large".
+  assert.equal(serializedByteLength(undefined), 4);
+  assert.equal(serializedByteLength(null), 4);
+});
+
+test('reports values JSON cannot represent as unrepresentable', () => {
+  const circular: Record<string, unknown> = {};
+  circular.self = circular;
+
+  for (const value of [
+    () => 'x',
+    Symbol('unserializable'),
+    1n,
+    circular,
+    { toJSON: () => 'x' },
+    new Date(0),
+    new (class Instance {})(),
+  ]) {
+    assert.equal(serializedByteLength(value), Number.POSITIVE_INFINITY, String(value?.toString()));
+  }
+});