fix(reply): suppress unscheduled-reminder note when session already has active cron

Before appending the "I did not schedule a reminder" guard note, check the
cron store for enabled jobs matching the current session key.  This prevents
false positives when the agent references an existing cron created in a
prior turn (e.g. "I'll ping you when it's done" while a monitoring cron is
already running).

The check only fires on the rare path where the text matches commitment
patterns AND no cron was added in the current turn, so the added I/O is
negligible.

Closes #32228

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/auto-reply/reply/agent-runner.misc.runreplyagent.test.ts

@@ -67,6 +67,15 @@ vi.mock("./queue.js", async () => {
   };
 });
 
+const loadCronStoreMock = vi.fn();
+vi.mock("../../cron/store.js", async () => {
+  const actual = await vi.importActual<typeof import("../../cron/store.js")>("../../cron/store.js");
+  return {
+    ...actual,
+    loadCronStore: (...args: unknown[]) => loadCronStoreMock(...args),
+  };
+});
+
 import { runReplyAgent } from "./agent-runner.js";
 
 type RunWithModelFallbackParams = {
@@ -80,6 +89,9 @@ beforeEach(() => {
   runCliAgentMock.mockClear();
   runWithModelFallbackMock.mockClear();
   runtimeErrorMock.mockClear();
+  loadCronStoreMock.mockClear();
+  // Default: no cron jobs in store.
+  loadCronStoreMock.mockResolvedValue({ version: 1, jobs: [] });
   resetSystemEventsForTest();
 
   // Default: no provider switch; execute the chosen provider+model.
@@ -1180,6 +1192,87 @@ describe("runReplyAgent reminder commitment guard", () => {
       text: "I'll remind you tomorrow morning.",
     });
   });
+
+  it("suppresses guard note when session already has an active cron job", async () => {
+    loadCronStoreMock.mockResolvedValueOnce({
+      version: 1,
+      jobs: [
+        {
+          id: "existing-job",
+          name: "monitor-task",
+          enabled: true,
+          sessionKey: "main",
+          createdAtMs: Date.now() - 60_000,
+          updatedAtMs: Date.now() - 60_000,
+        },
+      ],
+    });
+
+    runEmbeddedPiAgentMock.mockResolvedValueOnce({
+      payloads: [{ text: "I'll ping you when it's done." }],
+      meta: {},
+      successfulCronAdds: 0,
+    });
+
+    const result = await createRun();
+    expect(result).toMatchObject({
+      text: "I'll ping you when it's done.",
+    });
+  });
+
+  it("still appends guard note when cron jobs exist but not for the current session", async () => {
+    loadCronStoreMock.mockResolvedValueOnce({
+      version: 1,
+      jobs: [
+        {
+          id: "unrelated-job",
+          name: "daily-news",
+          enabled: true,
+          sessionKey: "other-session",
+          createdAtMs: Date.now() - 60_000,
+          updatedAtMs: Date.now() - 60_000,
+        },
+      ],
+    });
+
+    runEmbeddedPiAgentMock.mockResolvedValueOnce({
+      payloads: [{ text: "I'll remind you tomorrow morning." }],
+      meta: {},
+      successfulCronAdds: 0,
+    });
+
+    const result = await createRun();
+    expect(result).toMatchObject({
+      text: "I'll remind you tomorrow morning.\n\nNote: I did not schedule a reminder in this turn, so this will not trigger automatically.",
+    });
+  });
+
+  it("still appends guard note when cron jobs for session exist but are disabled", async () => {
+    loadCronStoreMock.mockResolvedValueOnce({
+      version: 1,
+      jobs: [
+        {
+          id: "disabled-job",
+          name: "old-monitor",
+          enabled: false,
+          sessionKey: "main",
+          createdAtMs: Date.now() - 60_000,
+          updatedAtMs: Date.now() - 60_000,
+        },
+      ],
+    });
+
+    runEmbeddedPiAgentMock.mockResolvedValueOnce({
+      payloads: [{ text: "I'll check back in an hour." }],
+      meta: {},
+      successfulCronAdds: 0,
+    });
+
+    const result = await createRun();
+    expect(result).toMatchObject({
+      text: "I'll check back in an hour.\n\nNote: I did not schedule a reminder in this turn, so this will not trigger automatically.",
+    });
+  });
 });
 
 describe("runReplyAgent fallback reasoning tags", () => {