fix: ask_user suggests tapping options without buttons (#137978)

* fix: avoid tap-only guidance in question prompts

* test: use public Teams API in question prompt contract

* test: assert question guidance through Teams rendering

Remove the intermediate presentation assertion so the regression exercises the
real card renderer before checking guidance. Retain the complete card and
plain-text expectations.

Co-authored-by: harshitgupta31415 <harshitgupta3.1415@gmail.com>

---------

Co-authored-by: Peter Steinberger <steipete@gmail.com>
Co-authored-by: harshitgupta31415 <harshitgupta3.1415@gmail.com>

src/agents/embedded-agent-subscribe.handlers.tools.test.ts

@@ -486,7 +486,7 @@ describe("handleToolExecutionStart read path checks", () => {
               "- Staging (Recommended): Safer default",
               "- Production",
               "",
-              "Tap an option, or reply with the option text or your own answer.",
+              "Reply with the number, the option text, or your own answer.",
             ].join("\n"),
           },
           {

src/agents/harness/user-input-bridge.ts

@@ -109,16 +109,14 @@ function buildAgentHarnessQuestionPresentation(params: {
     return undefined;
   }
   // The question stays in its own leading text block so reaction/native
-  // adapters can keep it while replacing the tap-only guidance below.
+  // adapters can keep it while replacing the reply guidance below.
   const optionGuidance = [
     ...options.map(
       (option) =>
         `- ${formatText(option.label)}${option.description ? `: ${formatText(option.description)}` : ""}`,
     ),
     "",
-    question.isOther
-      ? "Tap an option, or reply with the option text or your own answer."
-      : "Tap an option, or reply with the option number or text.",
+    questionReplyGuidance(params.questions),
   ].join("\n");
   return {
     blocks: [

test/contracts/ask-user-msteams-presentation.test.ts

@@ -0,0 +1,54 @@
+import { describe, expect, it } from "vitest";
+import { msteamsPlugin } from "../../extensions/msteams/api.js";
+import { buildAgentHarnessQuestionPromptPayload } from "../../src/agents/harness/user-input-bridge.js";
+
+describe("question reply guidance", () => {
+  it.each([
+    { isOther: false, guidance: "Reply with the number or option text." },
+    {
+      isOther: true,
+      guidance: "Reply with the number, the option text, or your own answer.",
+    },
+  ])(
+    "remains actionable without question buttons (isOther=$isOther)",
+    async ({ isOther, guidance }) => {
+      const payload = buildAgentHarnessQuestionPromptPayload({
+        questionId: "question-1",
+        questions: [
+          {
+            id: "target",
+            header: "Target",
+            question: "Where should this deploy?",
+            options: [{ label: "Staging", description: "Safer default" }, { label: "Production" }],
+            isOther,
+          },
+        ],
+      });
+      const presentation = payload.presentation;
+      if (!presentation) {
+        throw new Error("Expected a single-choice question presentation");
+      }
+      const optionText = ["- Staging: Safer default", "- Production", "", guidance].join("\n");
+
+      expect(payload.text).toContain(guidance);
+
+      // Teams supports buttons, but does not encode question actions as native controls.
+      const rendered = await msteamsPlugin.outbound?.renderPresentation?.({
+        payload,
+        presentation,
+        ctx: { cfg: {}, to: "conversation:test", text: payload.text, payload },
+      });
+      expect(rendered?.channelData?.msteams).toEqual({
+        presentationCard: {
+          type: "AdaptiveCard",
+          version: "1.4",
+          body: [
+            { type: "TextBlock", text: payload.text, wrap: true },
+            { type: "TextBlock", text: "Where should this deploy?", wrap: true },
+            { type: "TextBlock", text: optionText, wrap: true },
+          ],
+        },
+      });
+    },
+  );
+});