diff --git a/AGENTS.md b/AGENTS.md
index 1494d3fcf8..4dfbedb97b 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -76,7 +76,7 @@ printf '%s\n' "$out" | grep -q '\[tool call\] echo({"text":"ci smoke"})'
 printf '%s\n' "$out" | grep -q '\[tool result\] ECHO: CI SMOKE'
 test -n "$(find .sessions -path '.sessions/cwd-*/main-session-*.jsonl' -type f -print -quit)"
 rm -rf .sessions
-pnpm exec vitest run --config vitest.e2e.config.ts packages/ui/stdio-agent/tests/built-bin.e2e.ts packages/ui/acp-agent/tests/built-bin.e2e.ts packages/ui/jsonrpc/tests/built-scope-carrier.e2e.ts packages/workflow/workflow-workerthread/tests/built-worker.e2e.ts packages/code-runtime/code-runtime-worker/tests/built-lib.e2e.ts
+pnpm exec vitest run --config vitest.e2e.config.ts packages/ui/stdio-agent/tests/built-bin.e2e.ts packages/ui/acp-agent/tests/built-bin.e2e.ts packages/workflow/workflow-workerthread/tests/built-worker.e2e.ts packages/code-runtime/code-runtime-worker/tests/built-lib.e2e.ts
 ```
 
 `test:coverage`, not `test`, is the gating run ([why](docs/testing.md)); a sign-off counts only for commands actually run.
diff --git a/docs/testing.md b/docs/testing.md
index a1a841296a..23cca651fe 100644
--- a/docs/testing.md
+++ b/docs/testing.md
@@ -25,7 +25,7 @@ An e2e assertion re-runs the command or re-reads the file externally; a keyword
 
 - A plugin shipped via `cordis.yml` needs at least one test through the REAL Loader path: hand-built `ctx.plugin({...})` mounts bypass `unwrapExports` and cannot catch a broken export shape ([postmortem 0001](postmortem/0001-acp-default-export-drops-inject.md); export-shape rules in [packages/AGENTS.md](../packages/AGENTS.md)).
 - A guard only guards if the regression actually fails it. For a plugin without `inject` (bundle/composition plugins), a Loader smoke stays green under a broken export shape — add an explicit `expect('default' in mod).toBe(false)` plus an `unwrapExports` round-trip assertion, and prove it: introduce the regression, watch red, revert.
-- "Real entry path" means the published artifact: a package `bin` runs built `lib/bin.js` under plain `node`, exposing failures tsx masks (settle races, module resolution, swallowed load failures). The same applies to non-index runtime entries (the worker-thread sibling `lib/worker.cjs`) and singleton modules shared across bundles (`packages/ui/jsonrpc/tests/built-scope-carrier.e2e.ts`). Keep the built-artifact smokes green (`packages/ui/*/tests/built-bin.e2e.ts`, `packages/code-runtime/code-runtime-worker/tests/built-lib.e2e.ts`), and assert a genuinely-missing config exits non-zero.
+- "Real entry path" means the published artifact: the package `bin` points at built `lib/bin.js` under plain `node`, which tsx masks (settle races, module resolution, a swallowed load failure exiting 0). The same applies to any non-index runtime entry the built package resolves at run time (the worker-thread runtime's sibling `lib/worker.cjs`). Keep the built-artifact smokes green (`packages/ui/*/tests/built-bin.e2e.ts`, `packages/code-runtime/code-runtime-worker/tests/built-lib.e2e.ts`), and assert a genuinely-missing config exits non-zero.
 - An e2e that spawns an example from a temp cwd sets `TSX_TSCONFIG_PATH` to the repo-root tsconfig, or it silently falls back to stale built `lib/` ([examples/AGENTS.md](../examples/AGENTS.md)).
 
 ## When a snapshot test is required
diff --git a/packages/ui/jsonrpc/package.json b/packages/ui/jsonrpc/package.json
index bf4fe39118..be19ab7217 100644
--- a/packages/ui/jsonrpc/package.json
+++ b/packages/ui/jsonrpc/package.json
@@ -28,7 +28,6 @@
     "@deepseek-ai/dsh-agent": "^0.0.1",
     "@deepseek-ai/dsh-llm": "^0.0.1",
     "@deepseek-ai/dsh-llm-deepseek": "^0.0.1",
-    "@deepseek-ai/dsh-scope": "^0.0.1",
     "@deepseek-ai/dsh-session": "^0.0.1",
     "@deepseek-ai/dsh-subagent": "^0.0.1",
     "cordis": "^4.0.0-rc.6"
@@ -39,7 +38,6 @@
     "@deepseek-ai/dsh-agent-core": "workspace:^",
     "@deepseek-ai/dsh-llm": "workspace:^",
     "@deepseek-ai/dsh-llm-deepseek": "workspace:^",
-    "@deepseek-ai/dsh-scope": "workspace:^",
     "@deepseek-ai/dsh-session": "workspace:^",
     "@deepseek-ai/dsh-session-persistence-jsonl": "workspace:^",
     "@deepseek-ai/dsh-subagent": "workspace:^",
diff --git a/packages/ui/jsonrpc/tests/built-scope-carrier.e2e.ts b/packages/ui/jsonrpc/tests/built-scope-carrier.e2e.ts
deleted file mode 100644
index 159600e49c..0000000000
--- a/packages/ui/jsonrpc/tests/built-scope-carrier.e2e.ts
+++ /dev/null
@@ -1,121 +0,0 @@
-/**
- * Built-artifact guard for the scope carrier shared by `dsh-subagent` and
- * `dsh-jsonrpc`. The carrier registry is module-local, so both bundles must
- * externalize `dsh-scope`; source-mode tests cannot expose an accidentally
- * inlined second registry. This test runs the real `lib/index.js` bundles in a
- * plain Node subprocess, disposes the child before settlement, and requires the
- * SDK completion notification to retain the delegating parent.
- */
-
-import { execFile } from 'node:child_process'
-import { existsSync } from 'node:fs'
-import { fileURLToPath } from 'node:url'
-import { promisify } from 'node:util'
-import { describe, expect, it } from 'vitest'
-
-const repoRoot = fileURLToPath(new URL('../../../../', import.meta.url))
-const jsonrpcBundle = fileURLToPath(new URL('../lib/index.js', import.meta.url))
-const execFileAsync = promisify(execFile)
-
-const builtRuntimeProbe = String.raw`
-import { mkdtemp, rm } from "node:fs/promises";
-import { tmpdir } from "node:os";
-import { join, resolve } from "node:path";
-import { pathToFileURL } from "node:url";
-
-const load = (path) => import(pathToFileURL(resolve(path)).href);
-const [
-  { Context },
-  agentCore,
-  { default: SubagentService },
-  { default: SessionPersistenceJsonl },
-  { HarnessSdkServer },
-  { SessionId },
-] = await Promise.all([
-  load("vendor/cordis/lib/index.js"),
-  load("packages/core/agent-core/lib/index.js"),
-  load("packages/subagent/subagent/lib/index.js"),
-  load("packages/session-persistence/session-persistence-jsonl/lib/index.js"),
-  load("packages/ui/jsonrpc/lib/index.js"),
-  load("packages/core/session/lib/index.js"),
-]);
-
-const storageRoot = await mkdtemp(join(tmpdir(), "jsonrpc-built-scope-"));
-const ctx = new Context();
-try {
-  await ctx.plugin(agentCore);
-  await ctx.plugin(SubagentService);
-  await ctx.plugin(SessionPersistenceJsonl, { root: storageRoot });
-  await new Promise((ready) => setTimeout(ready, 50));
-
-  const notifications = [];
-  const server = new HarnessSdkServer(ctx, {
-    request() { return Promise.reject(new Error("unexpected host request")); },
-    notify(method, params) { notifications.push({ method, params }); },
-  });
-  const parent = await ctx.agents.create({
-    sessionId: SessionId("built-parent"),
-    meta: { cwd: storageRoot },
-    agentOptions: { model: "test" },
-  });
-  const child = await ctx.agents.create({
-    sessionId: SessionId("built-child"),
-    meta: { cwd: storageRoot, parentSession: SessionId("built-parent") },
-    agentOptions: { model: "test" },
-  });
-  const result = Promise.withResolvers();
-  const unregister = ctx.subagents.registerProvider({
-    name: "built-local",
-    capabilities: { outputSchema: false, depthLimit: false, toolFilter: false, persona: false },
-    inheritsParentContext: false,
-    start() {
-      return Promise.resolve({
-        id: child.agent.id,
-        result: result.promise,
-        dispose() { return Promise.resolve(); },
-      });
-    },
-  });
-  const run = await ctx.subagents.start("built-local", {
-    parent: parent.agent,
-    prompt: [],
-    signal: new AbortController().signal,
-  });
-  await child.dispose();
-  result.resolve({ output: [], stopReason: "completed" });
-  await run.result;
-  await Promise.resolve();
-
-  console.log(JSON.stringify(notifications.filter(({ method }) => method === "subagent.finished")));
-  await run.dispose();
-  unregister();
-  await parent.dispose();
-  await server.shutdown();
-} finally {
-  await ctx.fiber.dispose();
-  await rm(storageRoot, { recursive: true, force: true });
-}
-`
-
-describe.skipIf(!existsSync(jsonrpcBundle))('dsh-jsonrpc BUILT scope carrier', () => {
-  it('preserves parent-scoped completion after child disposal', async () => {
-    const { stdout, stderr } = await execFileAsync(process.execPath, ['--input-type=module', '-e', builtRuntimeProbe], {
-      cwd: repoRoot,
-      timeout: 15_000,
-    })
-
-    expect(stderr).not.toContain('listener threw')
-    expect(JSON.parse(stdout) as unknown).toEqual([{
-      method: 'subagent.finished',
-      params: {
-        provider: 'built-local',
-        agentId: 'built-child',
-        parentSessionId: 'built-parent',
-        childSessionId: 'built-child',
-        status: 'ok',
-        stopReason: 'completed',
-        lastAssistantMessage: [],
-      },
-    }])
-  })
-})
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index dec8c3024f..6214564eae 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1288,9 +1288,6 @@ importers:
       '@deepseek-ai/dsh-llm-deepseek':
         specifier: workspace:^
         version: link:../../llm/llm-deepseek
-      '@deepseek-ai/dsh-scope':
-        specifier: workspace:^
-        version: link:../../core/scope
       '@deepseek-ai/dsh-session':
         specifier: workspace:^
         version: link:../../core/session
diff --git a/scripts/run-gates.ts b/scripts/run-gates.ts
index e1c41149ca..131501abb0 100644
--- a/scripts/run-gates.ts
+++ b/scripts/run-gates.ts
@@ -332,7 +332,6 @@ function builtBinSmokeGate(): Gate {
     'vitest.e2e.config.ts',
     'packages/ui/stdio-agent/tests/built-bin.e2e.ts',
     'packages/ui/acp-agent/tests/built-bin.e2e.ts',
-    'packages/ui/jsonrpc/tests/built-scope-carrier.e2e.ts',
     // The worker-entry packages' built bundles: the only automated proof
     // that lib/index.js resolves its sibling lib/worker.cjs under plain node
     // (the e2e lane runs unbuilt, so these files self-skip there).