fix(llm): isolate retry policy histories

packages/examples/acp-demo/tests/acp-agent.spec.ts

@@ -76,6 +76,16 @@ async function withIsolatedSkillHomes<T>(run: () => Promise<T>): Promise<T> {
 }
 
 describe('dsh-acp-demo composition', () => {
+  it('rejects app-level llmRetry config through plugin validation', async () => {
+    const ctx = new Context()
+    await expect(ctx.plugin(acpAgent, {
+      provider: 'mock',
+      model: 'mock',
+      workspaceContext: false,
+      llmRetry: { maxTransientRetries: 2 },
+    } as never)).rejects.toThrow(/llmRetry/)
+  })
+
   it('brings up the spine + persistence + the ACP bridge', async () => {
     const ctx = await mount({
       provider: 'mock',

packages/examples/acp-demo/tests/built-bin.e2e.ts

@@ -207,6 +207,20 @@ describe.skipIf(!existsSync(acpBin))('dsh-acp-demo BUILT bin (node lib/bin.js, n
     expect(code).not.toBe(0)
     expect(stderr).toContain('config file not found')
   }, 30_000)
+
+  it('rejects legacy app-level llmRetry through the published Loader path', async () => {
+    consumer = await makeConsumer()
+    const configPath = join(consumer, 'cordis.yml')
+    const config = await readFile(configPath, 'utf8')
+    await writeFile(configPath, config.replace(
+      '    workspaceContext: false',
+      '    workspaceContext: false\n    llmRetry:\n      maxTransientRetries: 2',
+    ))
+
+    const { code, stderr } = await runBinExpectingExit('./cordis.yml', consumer)
+    expect(code).not.toBe(0)
+    expect(stderr).toContain('llmRetry')
+  }, 30_000)
 })
 
 /** Spawn the built acp bin against `configArg` and resolve with its exit code + stderr. */