fix: surface unanswered ask_user questions

docs/contract.md

@@ -165,7 +165,7 @@ This document defines the stable external behavior. It does not explain internal
 - semantically invalid payloads that reach tool execution return `error.kind === "invalid_input"` with structured `issues` and a transcript-friendly `Invalid ask_user payload:` message; their rendered status is `Invalid tool payload`
 - payloads missing schema-required fields fail Pi's schema validation before tool execution and use Pi's standard tool-error result without structured `details`
 - `mode: "submit"` is normal completion; `mode: "elaborate"` means the user asked the agent to continue with follow-up clarification based on notes
-- unanswered questions are omitted from `answers`
+- unanswered questions are omitted from `answers`, but non-cancelled submitted result text includes `<label>: (no answer)` in summary mode and `? <label>: (no answer)` in transcript rendering
 - in `mode: "elaborate"`, `answers` contains only committed answers; note-only entries move to `elaboration.items`
 - `continuation.strategy === "refine_only"` means the next ask should refine the current flow rather than restart it
 - `continuation.preservedAnswers` contains previously committed answers that should be kept as context and not re-asked

src/result-format.ts

@@ -13,6 +13,7 @@ export function formatResultLines(
 	for (const question of result.questions) {
 		const answer = result.answers[question.id];
 		if (!answer) {
+			lines.push(formatUnansweredLine(question.label, options.mode));
 			continue;
 		}
 
@@ -44,6 +45,15 @@ export function formatResultLines(
 	return lines;
 }
 
+function formatUnansweredLine(
+	questionLabel: string,
+	mode: "summary" | "render"
+): string {
+	return mode === "summary"
+		? `${questionLabel}: (no answer)`
+		: `? ${questionLabel}: (no answer)`;
+}
+
 function formatAnswerLine(
 	questionLabel: string,
 	answer: AskResult["answers"][string],

tests/result.test.ts

@@ -5,6 +5,7 @@ import { createInitialState } from "../src/state/create.ts";
 import { summarizeResult, toAskResult } from "../src/state/result.ts";
 import {
 	applyNumberShortcut,
+	confirmCurrentSelection,
 	enterOptionNoteMode,
 	enterQuestionNoteMode,
 	moveOption,
@@ -36,6 +37,71 @@ test("summarizeResult formats selected answers", () => {
 	assert.equal(renderResultText(result), "✓ Style: Rich");
 });
 
+test("submitted results surface unanswered questions without serializing answers", () => {
+	let state = createInitialState({
+		questions: [
+			{
+				id: "architecture",
+				label: "Architecture",
+				prompt: "How should we wire secrets?",
+				options: [{ value: "encrypted", label: "Encrypted" }],
+			},
+			{
+				id: "sources",
+				label: "Secret sources",
+				prompt: "Where do secrets come from?",
+				type: "multi",
+				options: [{ value: "env", label: ".env file" }],
+			},
+		],
+	});
+
+	state = applyNumberShortcut(state, 1);
+	state = confirmCurrentSelection(state);
+	state = confirmCurrentSelection(state);
+	const result = toAskResult(state);
+
+	assert.equal(result.answers.sources, undefined);
+	assert.equal(
+		summarizeResult(result),
+		"Architecture: Encrypted\nSecret sources: (no answer)"
+	);
+	assert.equal(
+		renderResultText(result),
+		"✓ Architecture: Encrypted\n? Secret sources: (no answer)"
+	);
+});
+
+test("submitted results surface every question when all are unanswered", () => {
+	const result = {
+		cancelled: false,
+		mode: "submit" as const,
+		questions: [
+			{
+				id: "scope",
+				label: "Scope",
+				prompt: "What scope?",
+				type: "single" as const,
+			},
+			{
+				id: "tests",
+				label: "Tests",
+				prompt: "Which tests?",
+				type: "multi" as const,
+			},
+		],
+		answers: {},
+	};
+	assert.equal(
+		summarizeResult(result),
+		"Scope: (no answer)\nTests: (no answer)"
+	);
+	assert.equal(
+		renderResultText(result),
+		"? Scope: (no answer)\n? Tests: (no answer)"
+	);
+});
+
 test("single questions presented as multi preserve requested type in results", () => {
 	let state = createInitialState(
 		{
@@ -584,14 +650,22 @@ test("invalid tool payload result is attributed to the tool call", () => {
 	assert.equal(renderResultText(result), "Invalid tool payload");
 });
 
-test("cancelled result renders as cancelled", () => {
+test("cancelled result hides unanswered questions", () => {
 	const result = {
 		title: "Interview",
 		cancelled: true,
 		mode: "submit" as const,
-		questions: [],
+		questions: [
+			{
+				id: "scope",
+				label: "Scope",
+				prompt: "What scope?",
+				type: "single" as const,
+			},
+		],
 		answers: {},
 	};
 
+	assert.equal(summarizeResult(result), "User cancelled the ask flow");
 	assert.equal(renderResultText(result), "Cancelled");
 });