diff --git a/src/__tests__/report-phase-blocked.test.ts b/src/__tests__/report-phase-blocked.test.ts
new file mode 100644
index 0000000..3afad14
--- /dev/null
+++ b/src/__tests__/report-phase-blocked.test.ts
@@ -0,0 +1,224 @@
+/**
+ * PieceEngine integration tests: Report phase (Phase 2) blocked handling.
+ *
+ * Covers:
+ * - Report phase blocked propagates to PieceEngine's handleBlocked flow
+ * - User input triggers full movement retry (Phase 1 → 2 → 3)
+ * - Null user input aborts the piece
+ */
+
+import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
+import { existsSync, rmSync } from 'node:fs';
+
+// --- Mock setup (must be before imports that use these modules) ---
+
+vi.mock('../agents/runner.js', () => ({
+  runAgent: vi.fn(),
+}));
+
+vi.mock('../core/piece/evaluation/index.js', () => ({
+  detectMatchedRule: vi.fn(),
+}));
+
+vi.mock('../core/piece/phase-runner.js', () => ({
+  needsStatusJudgmentPhase: vi.fn().mockReturnValue(false),
+  runReportPhase: vi.fn().mockResolvedValue(undefined),
+  runStatusJudgmentPhase: vi.fn().mockResolvedValue(''),
+}));
+
+vi.mock('../shared/utils/index.js', async (importOriginal) => ({
+  ...(await importOriginal<Record<string, unknown>>()),
+  generateReportDir: vi.fn().mockReturnValue('test-report-dir'),
+}));
+
+// --- Imports (after mocks) ---
+
+import { PieceEngine } from '../core/piece/index.js';
+import { runReportPhase } from '../core/piece/index.js';
+import {
+  makeResponse,
+  makeMovement,
+  buildDefaultPieceConfig,
+  mockRunAgentSequence,
+  mockDetectMatchedRuleSequence,
+  createTestTmpDir,
+  applyDefaultMocks,
+} from './engine-test-helpers.js';
+import type { PieceConfig, OutputContractItem } from '../core/models/index.js';
+
+/**
+ * Build a piece config where a movement has outputContracts (triggering report phase).
+ * plan → implement (with report) → supervise
+ */
+function buildConfigWithReport(): PieceConfig {
+  const reportContract: OutputContractItem = {
+    name: '02-coder-scope.md',
+    label: 'Scope',
+    description: 'Scope report',
+  };
+
+  return buildDefaultPieceConfig({
+    movements: [
+      makeMovement('plan', {
+        rules: [
+          { condition: 'Requirements are clear', next: 'implement' },
+          { condition: 'Requirements unclear', next: 'ABORT' },
+        ],
+      }),
+      makeMovement('implement', {
+        outputContracts: [reportContract],
+        rules: [
+          { condition: 'Implementation complete', next: 'supervise' },
+          { condition: 'Cannot proceed', next: 'plan' },
+        ],
+      }),
+      makeMovement('supervise', {
+        rules: [
+          { condition: 'All checks passed', next: 'COMPLETE' },
+          { condition: 'Requirements unmet', next: 'plan' },
+        ],
+      }),
+    ],
+  });
+}
+
+describe('PieceEngine Integration: Report Phase Blocked Handling', () => {
+  let tmpDir: string;
+
+  beforeEach(() => {
+    vi.resetAllMocks();
+    applyDefaultMocks();
+    tmpDir = createTestTmpDir();
+  });
+
+  afterEach(() => {
+    if (existsSync(tmpDir)) {
+      rmSync(tmpDir, { recursive: true, force: true });
+    }
+  });
+
+  it('should abort when report phase is blocked and no onUserInput callback', async () => {
+    const config = buildConfigWithReport();
+    const engine = new PieceEngine(config, tmpDir, 'test task', { projectCwd: tmpDir });
+
+    // Phase 1 succeeds for plan, then implement
+    mockRunAgentSequence([
+      makeResponse({ persona: 'plan', content: 'Plan done' }),
+      makeResponse({ persona: 'implement', content: 'Impl done' }),
+    ]);
+
+    // plan → implement, then implement's report phase blocks
+    mockDetectMatchedRuleSequence([
+      { index: 0, method: 'phase1_tag' },
+    ]);
+
+    // Report phase returns blocked (only implement has outputContracts, so only one call)
+    const blockedResponse = makeResponse({ persona: 'implement', status: 'blocked', content: 'Need clarification for report' });
+    vi.mocked(runReportPhase).mockResolvedValueOnce({ blocked: true, response: blockedResponse });
+
+    const blockedFn = vi.fn();
+    const abortFn = vi.fn();
+    engine.on('movement:blocked', blockedFn);
+    engine.on('piece:abort', abortFn);
+
+    const state = await engine.run();
+
+    expect(state.status).toBe('aborted');
+    expect(blockedFn).toHaveBeenCalledOnce();
+    expect(abortFn).toHaveBeenCalledOnce();
+  });
+
+  it('should abort when report phase is blocked and onUserInput returns null', async () => {
+    const config = buildConfigWithReport();
+    const onUserInput = vi.fn().mockResolvedValue(null);
+    const engine = new PieceEngine(config, tmpDir, 'test task', { projectCwd: tmpDir, onUserInput });
+
+    mockRunAgentSequence([
+      makeResponse({ persona: 'plan', content: 'Plan done' }),
+      makeResponse({ persona: 'implement', content: 'Impl done' }),
+    ]);
+
+    mockDetectMatchedRuleSequence([
+      { index: 0, method: 'phase1_tag' },
+    ]);
+
+    const blockedResponse = makeResponse({ persona: 'implement', status: 'blocked', content: 'Need info for report' });
+    vi.mocked(runReportPhase).mockResolvedValueOnce({ blocked: true, response: blockedResponse });
+
+    const state = await engine.run();
+
+    expect(state.status).toBe('aborted');
+    expect(onUserInput).toHaveBeenCalledOnce();
+  });
+
+  it('should retry full movement when report phase is blocked and user provides input', async () => {
+    const config = buildConfigWithReport();
+    const onUserInput = vi.fn().mockResolvedValueOnce('User provided report clarification');
+    const engine = new PieceEngine(config, tmpDir, 'test task', { projectCwd: tmpDir, onUserInput });
+
+    mockRunAgentSequence([
+      // First: plan succeeds
+      makeResponse({ persona: 'plan', content: 'Plan done' }),
+      // Second: implement Phase 1 succeeds, but Phase 2 will block
+      makeResponse({ persona: 'implement', content: 'Impl done' }),
+      // Third: implement retried after user input (Phase 1 re-executes)
+      makeResponse({ persona: 'implement', content: 'Impl done with clarification' }),
+      // Fourth: supervise
+      makeResponse({ persona: 'supervise', content: 'All passed' }),
+    ]);
+
+    mockDetectMatchedRuleSequence([
+      // plan → implement
+      { index: 0, method: 'phase1_tag' },
+      // implement (blocked, no rule eval happens)
+      // implement retry → supervise
+      { index: 0, method: 'phase1_tag' },
+      // supervise → COMPLETE
+      { index: 0, method: 'phase1_tag' },
+    ]);
+
+    // Report phase: only implement has outputContracts; blocks first, succeeds on retry
+    const blockedResponse = makeResponse({ persona: 'implement', status: 'blocked', content: 'Need report clarification' });
+    vi.mocked(runReportPhase).mockResolvedValueOnce({ blocked: true, response: blockedResponse }); // implement (first attempt)
+    vi.mocked(runReportPhase).mockResolvedValueOnce(undefined); // implement (retry, succeeds)
+
+    const userInputFn = vi.fn();
+    engine.on('movement:user_input', userInputFn);
+
+    const state = await engine.run();
+
+    expect(state.status).toBe('completed');
+    expect(onUserInput).toHaveBeenCalledOnce();
+    expect(userInputFn).toHaveBeenCalledOnce();
+    expect(state.userInputs).toContain('User provided report clarification');
+  });
+
+  it('should propagate blocked content from report phase to engine response', async () => {
+    const config = buildConfigWithReport();
+    const engine = new PieceEngine(config, tmpDir, 'test task', { projectCwd: tmpDir });
+
+    mockRunAgentSequence([
+      makeResponse({ persona: 'plan', content: 'Plan done' }),
+      makeResponse({ persona: 'implement', content: 'Original impl content' }),
+    ]);
+
+    mockDetectMatchedRuleSequence([
+      { index: 0, method: 'phase1_tag' },
+    ]);
+
+    const blockedContent = 'Blocked: need specific file path for report';
+    const blockedResponse = makeResponse({ persona: 'implement', status: 'blocked', content: blockedContent });
+    vi.mocked(runReportPhase).mockResolvedValueOnce({ blocked: true, response: blockedResponse });
+
+    const blockedFn = vi.fn();
+    engine.on('movement:blocked', blockedFn);
+
+    const state = await engine.run();
+
+    expect(state.status).toBe('aborted');
+    expect(blockedFn).toHaveBeenCalledWith(
+      expect.objectContaining({ name: 'implement' }),
+      expect.objectContaining({ status: 'blocked', content: blockedContent }),
+    );
+  });
+});
diff --git a/src/core/piece/engine/MovementExecutor.ts b/src/core/piece/engine/MovementExecutor.ts
index 702560e..9f0d994 100644
--- a/src/core/piece/engine/MovementExecutor.ts
+++ b/src/core/piece/engine/MovementExecutor.ts
@@ -209,8 +209,15 @@ export class MovementExecutor {
     const phaseCtx = this.deps.optionsBuilder.buildPhaseRunnerContext(state, response.content, updatePersonaSession, this.deps.onPhaseStart, this.deps.onPhaseComplete);
 
     // Phase 2: report output (resume same session, Write only)
+    // When report phase returns blocked, propagate to PieceEngine's handleBlocked flow
     if (step.outputContracts && step.outputContracts.length > 0) {
-      await runReportPhase(step, movementIteration, phaseCtx);
+      const reportResult = await runReportPhase(step, movementIteration, phaseCtx);
+      if (reportResult?.blocked) {
+        response = { ...response, status: 'blocked', content: reportResult.response.content };
+        state.movementOutputs.set(step.name, response);
+        state.lastOutput = response;
+        return { response, instruction };
+      }
     }
 
     // Phase 3: status judgment (resume session, no tools, output status tag)
diff --git a/src/core/piece/index.ts b/src/core/piece/index.ts
index a2991e2..776c810 100644
--- a/src/core/piece/index.ts
+++ b/src/core/piece/index.ts
@@ -64,4 +64,4 @@ export { RuleEvaluator, type RuleMatch, type RuleEvaluatorContext, detectMatched
 export { AggregateEvaluator } from './evaluation/AggregateEvaluator.js';
 
 // Phase runner
-export { needsStatusJudgmentPhase, runReportPhase, runStatusJudgmentPhase } from './phase-runner.js';
+export { needsStatusJudgmentPhase, runReportPhase, runStatusJudgmentPhase, type ReportPhaseBlockedResult } from './phase-runner.js';
diff --git a/src/core/piece/phase-runner.ts b/src/core/piece/phase-runner.ts
index ac784b5..51b7a93 100644
--- a/src/core/piece/phase-runner.ts
+++ b/src/core/piece/phase-runner.ts
@@ -7,7 +7,7 @@
 
 import { existsSync, mkdirSync, readFileSync, writeFileSync } from 'node:fs';
 import { dirname, parse, resolve, sep } from 'node:path';
-import type { PieceMovement, Language } from '../models/types.js';
+import type { PieceMovement, Language, AgentResponse } from '../models/types.js';
 import type { PhaseName } from './types.js';
 import { runAgent, type RunAgentOptions } from '../../agents/runner.js';
 import { ReportInstructionBuilder } from './instruction/ReportInstructionBuilder.js';
@@ -18,6 +18,9 @@ import { buildSessionKey } from './session-key.js';
 
 const log = createLogger('phase-runner');
 
+/** Result when Phase 2 encounters a blocked status */
+export type ReportPhaseBlockedResult = { blocked: true; response: AgentResponse };
+
 export interface PhaseRunnerContext {
   /** Working directory (agent work dir, may be a clone) */
   cwd: string;
@@ -107,7 +110,7 @@ export async function runReportPhase(
   step: PieceMovement,
   movementIteration: number,
   ctx: PhaseRunnerContext,
-): Promise<void> {
+): Promise<ReportPhaseBlockedResult | void> {
   const sessionKey = buildSessionKey(step);
   let currentSessionId = ctx.getSessionId(sessionKey);
   if (!currentSessionId) {
@@ -153,6 +156,11 @@ export async function runReportPhase(
       throw error;
     }
 
+    if (reportResponse.status === 'blocked') {
+      ctx.onPhaseComplete?.(step, 2, 'report', reportResponse.content, reportResponse.status);
+      return { blocked: true, response: reportResponse };
+    }
+
     if (reportResponse.status !== 'done') {
       const errorMsg = reportResponse.error || reportResponse.content || 'Unknown error';
       ctx.onPhaseComplete?.(step, 2, 'report', reportResponse.content, reportResponse.status, errorMsg);