Add dedicated quick question API

server/tests/quick-question.test.ts

@@ -0,0 +1,27 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+import {
+  buildQuickQuestionMultiplexRequest,
+  QUICK_QUESTION_SYSTEM_PROMPT,
+} from "../src/llm/quick-question.js";
+
+test("quick question requests receive the server-owned one-shot system prompt", () => {
+  const request = buildQuickQuestionMultiplexRequest({
+    provider: "openai",
+    model: "gpt-4.1-mini",
+    question: "How do I reset my password?",
+    enabledTools: ["web_search"],
+    userLocation: "Los Angeles, CA",
+  });
+
+  assert.equal(request.persist, false);
+  assert.equal(request.chatId, undefined);
+  assert.deepEqual(request.messages, [
+    { role: "system", content: QUICK_QUESTION_SYSTEM_PROMPT },
+    { role: "user", content: "How do I reset my password?" },
+  ]);
+  assert.deepEqual(request.enabledTools, ["web_search"]);
+  assert.equal(request.userLocation, "Los Angeles, CA");
+  assert.match(QUICK_QUESTION_SYSTEM_PROMPT, /succinct, direct, self-contained answer/i);
+  assert.match(QUICK_QUESTION_SYSTEM_PROMPT, /do not ask follow-up questions/i);
+});