fix(cron): force fresh isolated session IDs

src/cron/isolated-agent/run.skill-filter.test.ts

@@ -327,6 +327,16 @@ describe("runCronIsolatedAgentTurn — skill filter", () => {
     ]);
   });
 
+  it("forces a fresh session for isolated cron runs", async () => {
+    const result = await runCronIsolatedAgentTurn(makeParams());
+
+    expect(result.status).toBe("ok");
+    expect(resolveCronSessionMock).toHaveBeenCalledOnce();
+    expect(resolveCronSessionMock.mock.calls[0]?.[0]).toMatchObject({
+      forceNew: true,
+    });
+  });
+
   it("reuses cached snapshot when version and normalized skillFilter are unchanged", async () => {
     resolveAgentSkillsFilterMock.mockReturnValue([" weather ", "meme-factory", "weather"]);
     resolveCronSessionMock.mockReturnValue({

src/cron/isolated-agent/run.ts

@@ -270,6 +270,8 @@ export async function runCronIsolatedAgentTurn(params: {
     sessionKey: agentSessionKey,
     agentId,
     nowMs: now,
+    // Isolated cron runs must not carry prior turn context across executions.
+    forceNew: params.job.sessionTarget === "isolated",
   });
   const runSessionId = cronSession.sessionEntry.sessionId;
   const runSessionKey = baseSessionKey.startsWith("cron:")