fix: handle prompt-too-long by resetting session and continuing inline directives

src/auto-reply/command-reply.test.ts

@@ -251,6 +251,35 @@ describe("runCommandReply (pi)", () => {
     expect(meta.killed).toBe(true);
   });
 
+  it("surfaces prompt-too-long and flags meta for session reset", async () => {
+    mockPiRpc({
+      stdout:
+        '{"type":"agent_end","message":{"role":"assistant","content":[],"errorMessage":"400 {\\"type\\":\\"error\\",\\"error\\":{\\"type\\":\\"invalid_request_error\\",\\"message\\":\\"prompt is too long: 200333 tokens > 200000 maximum\\"}}"}}',
+      stderr: "",
+      code: 0,
+    });
+
+    const { payloads, meta } = await runCommandReply({
+      reply: {
+        mode: "command",
+        command: ["pi", "{{Body}}"],
+        agent: { kind: "pi" },
+      },
+      templatingCtx: noopTemplateCtx,
+      sendSystemOnce: false,
+      isNewSession: false,
+      isFirstTurnInSession: false,
+      systemSent: false,
+      timeoutMs: 1000,
+      timeoutSeconds: 1,
+      commandRunner: vi.fn(),
+      enqueue: enqueueImmediate,
+    });
+
+    expect(payloads?.[0]?.text).toMatch(/history is too long/i);
+    expect(meta.agentMeta?.extra?.promptTooLong).toBe(true);
+  });
+
   it("collapses rpc deltas instead of emitting raw JSON spam", async () => {
     mockPiRpc({
       stdout: [