fix(background-agent): route session prompts by directory

src/features/background-agent/manager-session-permission.test.ts

@@ -7,6 +7,38 @@ import { BackgroundManager } from "./manager"
 import { unsafeTestValue } from "../../../test-support/unsafe-test-value"
 
 describe("BackgroundManager session permission", () => {
+  test("passes parent directory route when prompting the child session", async () => {
+    // given
+    const promptCalls: Array<Record<string, unknown>> = []
+    const client = {
+      session: {
+        get: async () => ({ data: { directory: "/parent" } }),
+        create: async () => ({ data: { id: "ses_child" } }),
+        promptAsync: async (input: Record<string, unknown>) => {
+          promptCalls.push(input)
+          return {}
+        },
+        abort: async () => ({}),
+      },
+    }
+    const manager = new BackgroundManager({ pluginContext: unsafeTestValue<PluginInput>({ client, directory: tmpdir() }) })
+
+    // when
+    await manager.launch({
+      description: "Test task",
+      prompt: "Do something",
+      agent: "explore",
+      parentSessionId: "ses_parent",
+      parentMessageId: "msg_parent",
+    })
+    await new Promise(resolve => setTimeout(resolve, 50))
+    manager.shutdown()
+
+    // then
+    expect(promptCalls).toHaveLength(1)
+    expect(promptCalls[0]?.query).toEqual({ directory: "/parent" })
+  })
+
   test("passes query directory when loading the parent session", async () => {
     // given
     const getCalls: Array<Record<string, unknown>> = []