diff --git a/tools/shadow-replay.mjs b/tools/shadow-replay.mjs
index 68a42fda..3a48aa35 100644
--- a/tools/shadow-replay.mjs
+++ b/tools/shadow-replay.mjs
@@ -10,6 +10,8 @@
  */
 import { floorDecide } from './floor-decide.mjs';
 import { snapshotNeeded } from './snapshot-decide.mjs';
+import { decide as supremeDecide } from './enforce-supreme-gate.mjs';
+import { freezePlan } from './plan-lock.mjs';
 
 // ── Фикстуры (данные) ──────────────────────────────────────────────────────
 
@@ -76,3 +78,16 @@ export function decideM6(toolUse) {
   const need = snapshotNeeded(toolUse && toolUse.name, (toolUse && toolUse.input) || {});
   return { blocked: !!need, reason: need ? 'снимок нужен (разрушительный Bash)' : 'снимок не нужен' };
 }
+
+export const REPLAY_KEY = 'shadow-replay-test-key';
+
+/** Заморозить синтетический план тест-ключом (artifactId=null → без проверки артефакта). */
+export function freezeReplayPlan(steps) {
+  return freezePlan({ steps, artifactId: null, key: REPLAY_KEY, nowMs: 0 });
+}
+
+/** М2: план-матч ядро через decide(). frozenArtifact=null (план без artifact_id). */
+export function decideM2(toolUse, frozenPlan, stepPtr) {
+  const r = supremeDecide({ toolUse, frozenPlan, frozenArtifact: null, stepPtr, key: REPLAY_KEY });
+  return { blocked: r.decision === 'block', reason: r.reason };
+}
diff --git a/tools/shadow-replay.test.mjs b/tools/shadow-replay.test.mjs
index fa496b9a..54435e2b 100644
--- a/tools/shadow-replay.test.mjs
+++ b/tools/shadow-replay.test.mjs
@@ -1,7 +1,7 @@
 import { describe, it, expect } from 'vitest';
 import {
   BENIGN_FIXTURE, RISKY_FIXTURE, M2_PLAN_STEPS, M2_EVENTS, M4_FIXTURE,
-  classifyOutcome, decideM5, decideM6,
+  classifyOutcome, decideM5, decideM6, decideM2, freezeReplayPlan,
 } from './shadow-replay.mjs';
 
 describe('shadow-replay fixtures', () => {
@@ -70,3 +70,19 @@ describe('М6 снимок адаптер', () => {
     expect(decideM6({ name: 'Bash', input: { command: 'git log' } }).blocked).toBe(false);
   });
 });
+
+describe('М2 стена адаптер', () => {
+  const plan = freezeReplayPlan(M2_PLAN_STEPS);
+  it('in-plan правка (шаг 1) → allow', () => {
+    expect(decideM2({ name: 'Edit', input: { file_path: 'app/Foo.php' } }, plan, 0).blocked).toBe(false);
+  });
+  it('observe (Read) → allow', () => {
+    expect(decideM2({ name: 'Read', input: { file_path: 'app/Foo.php' } }, plan, 0).blocked).toBe(false);
+  });
+  it('out-of-plan мутация → block', () => {
+    expect(decideM2({ name: 'Edit', input: { file_path: 'app/Other.php' } }, plan, 0).blocked).toBe(true);
+  });
+  it('seed skill → allow', () => {
+    expect(decideM2({ name: 'Skill', input: { skill: 'superpowers:writing-plans' } }, plan, 0).blocked).toBe(false);
+  });
+});