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feat(maestro): server-side prompt queue for structured sessions

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Prompts sent while a turn is active are queued on the daemon instead of
in the browser's React state. The queue is persisted in the session
sidecar and drained as the next turn when the current one completes.

Fixes the bug where queued messages were delivered to the wrong session
when switching focus in the UI: the client-side queue captured the new
sessionId in its drain closure.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Miguel Palhas
2026-09-12 14:10:55 +01:00
co-authored by Claude Opus 4.6
parent cd5bbcfcb1
commit ebe25a1a55
17 changed files with 266 additions and 137 deletions
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web/src/components/structured/StructuredPane.test.tsx
+5 -19
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@@ -308,7 +308,7 @@ describe("prompt and cancel", () => {
);
});
it("queues a second message while a turn is in flight, and sends it when the turn ends", async () => {
it("always POSTs a prompt even while a turn is active (server queues it)", async () => {
const { socket } = mount();
snapshot(socket, [], busy);
fireEvent.change(document.querySelector<HTMLTextAreaElement>(".structured-input")!, {
@@ -316,31 +316,17 @@ describe("prompt and cancel", () => {
});
fireEvent.submit(document.querySelector("form.structured-composer")!);
expect(sendStructuredPrompt).not.toHaveBeenCalled();
expect(document.querySelector(".st-row-queued")?.textContent).toBe("next up");
socket.emit({ type: "reduced_state", state: idle });
await waitFor(() => expect(sendStructuredPrompt).toHaveBeenCalledWith("s1", "next up"));
});
it("concatenates multiple queued messages into a single prompt", async () => {
it("renders server-side queued prompts from state", () => {
const { socket } = mount();
snapshot(socket, [], busy);
const input = document.querySelector<HTMLTextAreaElement>(".structured-input")!;
const form = document.querySelector("form.structured-composer")!;
snapshot(socket, [], { ...busy, queued_prompts: ["first", "second"] });
fireEvent.change(input, { target: { value: "first" } });
fireEvent.submit(form);
fireEvent.change(input, { target: { value: "second" } });
fireEvent.submit(form);
expect(sendStructuredPrompt).not.toHaveBeenCalled();
const queued = document.querySelectorAll(".st-row-queued");
expect(queued).toHaveLength(2);
socket.emit({ type: "reduced_state", state: idle });
await waitFor(() => expect(sendStructuredPrompt).toHaveBeenCalledWith("s1", "first\n\nsecond"));
expect(sendStructuredPrompt).toHaveBeenCalledTimes(1);
expect(queued[0].textContent).toBe("first");
expect(queued[1].textContent).toBe("second");
});
it("hands a failed send's draft back to the operator", async () => {