feat: add executor gateway contracts

docs/architecture/memind-orchestrator-boundary.md

@@ -86,6 +86,21 @@ The framework-neutral contracts are:
 - `orchestrator-event-v1`
 - `workflow-execution-request-v1`
 - `workflow-execution-decision-v1`
+- `executor-job-request-v1`
+- `executor-job-state-v1`
+- `executor-dispatch-decision-v1`
+
+The Phase 3.2 Executor Gateway owns the adapter registry and executor job state
+transition boundary. Requests contain workspace/artifact references,
+authorization and side-effect policy, timeout, cancellation, fallback, and an
+idempotency key. The store interface requires atomic create-if-absent semantics
+so retries return the original job and conflicting payloads fail closed.
+
+Goosed, Aider, and OpenHands currently appear only as disabled
+`contract-only` adapters. The reference in-memory store is non-durable and is
+not a deployment backend. The compile-time dispatch capability remains false,
+so creating a job records `blocked` state without importing an executor SDK,
+launching a process, or touching a workspace.
 
 The implemented internal API is:
 

ops/src/api/admin.ts

@@ -237,6 +237,16 @@ export type OrchestratorEngineDescriptor = {
   capabilities: string[];
 };
 
+export type OrchestratorExecutorDescriptor = {
+  id: string;
+  label: string;
+  kind: string;
+  enabled: boolean;
+  dispatchImplemented: boolean;
+  status: string;
+  capabilities: string[];
+};
+
 export type OrchestratorConfigState = {
   config: OrchestratorConfig;
   configVersion: number;
@@ -245,6 +255,7 @@ export type OrchestratorConfigState = {
   source: string;
   runtime: OrchestratorRuntime;
   engines: OrchestratorEngineDescriptor[];
+  executors: OrchestratorExecutorDescriptor[];
 };
 
 export type OrchestratorServiceHealth = {

ops/src/pages/admin/OrchestratorPage.tsx

@@ -169,6 +169,36 @@ export function OrchestratorPage() {
         </p>
       </div>
 
+      <div className="card grid">
+        <div>
+          <h3 style={{ margin: 0 }}>Executor Gateway</h3>
+          <p style={{ margin: '4px 0 0', color: '#68716c', fontSize: 13 }}>
+            Phase 3.2 仅注册版本化适配器契约；所有执行器均为 contract-only，不会启动进程或接管任务。
+          </p>
+        </div>
+        <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(220px, 1fr))', gap: 10 }}>
+          {(state.executors ?? []).map((executor) => (
+            <div
+              key={executor.id}
+              style={{ border: '1px solid #e4e9e6', borderRadius: 10, padding: 12 }}
+            >
+              <div style={{ display: 'flex', justifyContent: 'space-between', gap: 8 }}>
+                <strong>{executor.label}</strong>
+                <span style={{ color: executor.enabled ? '#2f6f57' : '#8a5a16', fontSize: 13 }}>
+                  {executor.status}
+                </span>
+              </div>
+              <p style={{ margin: '8px 0 0', color: '#68716c', fontSize: 13 }}>
+                {executor.capabilities.join(' · ') || '无能力声明'}
+              </p>
+              <small style={{ display: 'block', marginTop: 8 }}>
+                dispatch {executor.dispatchImplemented ? 'implemented' : 'disabled'}
+              </small>
+            </div>
+          ))}
+        </div>
+      </div>
+
       <OrchestratorShadowPanel />
 
       <OrchestratorExecutionPlanPanel />

services/orchestrator/README.md

@@ -93,6 +93,23 @@ reasons, task-type distribution, Native terminal coverage, recent decisions,
 and an explicit alert if any stored decision ever reports
 `handoffAllowed=true`.
 
+Phase 3.2 establishes the Executor Gateway boundary:
+
+- `executor-job-request-v1`, `executor-job-state-v1`, and
+  `executor-dispatch-decision-v1` remain independent of Goosed, Aider,
+  OpenHands, and LangGraph SDK types;
+- jobs use workspace and artifact references rather than host filesystem paths;
+- the store contract provides atomic idempotency, lookup, and state update
+  operations;
+- timeout, cancellation, fallback, authorization, network, and side-effect
+  controls are normalized before adapter selection;
+- Goosed, Aider, and OpenHands are registered as `contract-only` adapters;
+- the reference memory store is explicitly non-durable and used only for local
+  contract tests.
+
+`EXECUTOR_DISPATCH_IMPLEMENTED=false` is a code-level gate. Phase 3.2 can record
+blocked, idempotent job state but cannot invoke an adapter or launch a process.
+
 The default memindadm mode remains `off`. Canary and Active routing are not
 wired to the LangGraph executor in Phase 3. Native Agent Run remains the sole
 executor in every mode.

services/orchestrator/admin-config.mjs

@@ -7,6 +7,7 @@ import {
   normalizeWorkflowName,
   stableRolloutBucket,
 } from './contracts.mjs';
+import { listPhase3ExecutorAdapters } from './executor-gateway.mjs';
 
 const CONFIG_TABLE = 'h5_orchestrator_admin_config';
 const CONFIG_SCOPE = 'global';
@@ -301,6 +302,7 @@ export function createOrchestratorAdminConfigService(pool, {
         ...state,
         runtime: runtimeState(state.config, env),
         engines: engineCatalog(state.config),
+        executors: listPhase3ExecutorAdapters(),
       };
     },
 
@@ -333,6 +335,7 @@ export function createOrchestratorAdminConfigService(pool, {
         ...state,
         runtime: runtimeState(state.config, env),
         engines: engineCatalog(state.config),
+        executors: listPhase3ExecutorAdapters(),
         ...(probe ? { serviceHealth: await probeServiceHealth(state.config, { fetchImpl }) } : {}),
       };
     },

services/orchestrator/admin-config.test.mjs

@@ -35,6 +35,15 @@ test('orchestrator config defaults to a disabled native-safe runtime', async ()
   assert.equal(state.runtime.reason, 'mode_off');
   assert.equal(state.engines.find((engine) => engine.id === 'native').configured, true);
   assert.equal(state.engines.find((engine) => engine.id === 'langgraph').configured, false);
+  assert.deepEqual(
+    state.executors.map((executor) => executor.id),
+    ['goosed', 'aider', 'openhands'],
+  );
+  assert.equal(state.executors.every((executor) => executor.enabled === false), true);
+  assert.equal(
+    state.executors.every((executor) => executor.dispatchImplemented === false),
+    true,
+  );
 });
 
 test('orchestrator config normalizes unsafe values and keeps a workflow allowlist', () => {

services/orchestrator/executor-gateway.mjs

@@ -0,0 +1,418 @@
+import crypto from 'node:crypto';
+import { normalizeWorkflowEngineId } from './contracts.mjs';
+
+const EXECUTOR_JOB_REQUEST_VERSION = 'executor-job-request-v1';
+const EXECUTOR_JOB_STATE_VERSION = 'executor-job-state-v1';
+const EXECUTOR_DISPATCH_IMPLEMENTED = false;
+const MAX_INSTRUCTION_CHARACTERS = 32_000;
+const TERMINAL_JOB_STATUSES = new Set([
+  'succeeded',
+  'failed',
+  'cancelled',
+  'timed_out',
+  'blocked',
+]);
+
+const PHASE3_EXECUTOR_DESCRIPTORS = Object.freeze([
+  Object.freeze({
+    id: 'goosed',
+    label: 'Goosed',
+    kind: 'remote',
+    capabilities: Object.freeze(['session-execution', 'streaming', 'tools']),
+  }),
+  Object.freeze({
+    id: 'aider',
+    label: 'Aider',
+    kind: 'worker',
+    capabilities: Object.freeze(['code-edit', 'multi-file']),
+  }),
+  Object.freeze({
+    id: 'openhands',
+    label: 'OpenHands',
+    kind: 'worker',
+    capabilities: Object.freeze(['repo-task', 'code-edit', 'command-execution']),
+  }),
+]);
+
+function clone(value) {
+  return typeof structuredClone === 'function'
+    ? structuredClone(value)
+    : JSON.parse(JSON.stringify(value));
+}
+
+function clampInteger(value, fallback, min, max) {
+  const number = Number(value);
+  if (!Number.isFinite(number)) return fallback;
+  return Math.min(max, Math.max(min, Math.floor(number)));
+}
+
+function normalizeReference(value, fallbackKind) {
+  const source = value && typeof value === 'object' && !Array.isArray(value) ? value : {};
+  const kind = String(source.kind ?? fallbackKind ?? '').trim().slice(0, 64);
+  const id = String(source.id ?? '').trim().slice(0, 256);
+  return kind && id ? { kind, id } : null;
+}
+
+function stableValue(value) {
+  if (Array.isArray(value)) return value.map(stableValue);
+  if (!value || typeof value !== 'object') return value;
+  return Object.fromEntries(
+    Object.keys(value)
+      .sort()
+      .map((key) => [key, stableValue(value[key])]),
+  );
+}
+
+function fingerprint(value) {
+  return crypto
+    .createHash('sha256')
+    .update(JSON.stringify(stableValue(value)))
+    .digest('hex');
+}
+
+function gatewayError(code, message, status = 409) {
+  const error = new Error(message);
+  error.code = code;
+  error.status = status;
+  return error;
+}
+
+export function normalizeExecutorJobRequest(input = {}) {
+  const source = input && typeof input === 'object' && !Array.isArray(input) ? input : {};
+  const jobId = String(source.jobId ?? crypto.randomUUID()).trim();
+  const idempotencyKey = String(source.idempotencyKey ?? '').trim().slice(0, 200);
+  const executor = normalizeWorkflowEngineId(source.executor, '');
+  const instruction = String(source.task?.instruction ?? source.instruction ?? '')
+    .trim()
+    .slice(0, MAX_INSTRUCTION_CHARACTERS);
+  if (!jobId) throw gatewayError('EXECUTOR_JOB_ID_REQUIRED', 'Executor job requires jobId', 422);
+  if (!idempotencyKey) {
+    throw gatewayError(
+      'EXECUTOR_IDEMPOTENCY_KEY_REQUIRED',
+      'Executor job requires idempotencyKey',
+      422,
+    );
+  }
+  if (!executor) {
+    throw gatewayError('EXECUTOR_ID_REQUIRED', 'Executor job requires executor', 422);
+  }
+  if (!instruction) {
+    throw gatewayError('EXECUTOR_INSTRUCTION_REQUIRED', 'Executor job requires instruction', 422);
+  }
+  return {
+    version: EXECUTOR_JOB_REQUEST_VERSION,
+    jobId,
+    idempotencyKey,
+    executor,
+    task: {
+      type: String(source.task?.type ?? 'code_task').trim().slice(0, 128) || 'code_task',
+      instruction,
+      workspaceRef: normalizeReference(source.task?.workspaceRef, 'workspace'),
+      inputRefs: Array.isArray(source.task?.inputRefs)
+        ? source.task.inputRefs
+          .map((item) => normalizeReference(item, 'artifact'))
+          .filter(Boolean)
+          .slice(0, 100)
+        : [],
+    },
+    subject: {
+      tenantId: String(source.subject?.tenantId ?? '').trim() || null,
+      userId: String(source.subject?.userId ?? '').trim() || null,
+    },
+    authorization: {
+      executionAllowed: source.authorization?.executionAllowed === true,
+      actorId: String(source.authorization?.actorId ?? '').trim() || null,
+    },
+    policy: {
+      sideEffectsAllowed: source.policy?.sideEffectsAllowed === true,
+      networkAllowed: source.policy?.networkAllowed === true,
+    },
+    controls: {
+      timeoutMs: clampInteger(source.controls?.timeoutMs, 15 * 60_000, 500, 60 * 60_000),
+      cancellationAllowed: source.controls?.cancellationAllowed !== false,
+      fallbackExecutor: normalizeWorkflowEngineId(source.controls?.fallbackExecutor, ''),
+    },
+    metadata: source.metadata && typeof source.metadata === 'object'
+      ? clone(source.metadata)
+      : {},
+  };
+}
+
+function validateExecutorAdapter(adapter) {
+  if (!adapter || typeof adapter !== 'object') {
+    throw new Error('Executor adapter must be an object');
+  }
+  const id = normalizeWorkflowEngineId(adapter.id, '');
+  if (!id) throw new Error('Executor adapter requires a valid id');
+  for (const method of ['submit', 'cancel', 'getState', 'streamEvents']) {
+    if (typeof adapter[method] !== 'function') {
+      throw new Error(`Executor adapter ${id} missing method: ${method}`);
+    }
+  }
+  return id;
+}
+
+export function createExecutorAdapterRegistry(initialAdapters = []) {
+  const adapters = new Map();
+
+  function register(adapter) {
+    const id = validateExecutorAdapter(adapter);
+    if (adapters.has(id)) throw new Error(`Executor adapter already registered: ${id}`);
+    adapters.set(id, adapter);
+    return adapter;
+  }
+
+  for (const adapter of initialAdapters) register(adapter);
+
+  return {
+    register,
+    has(id) {
+      return adapters.has(normalizeWorkflowEngineId(id, ''));
+    },
+    get(id) {
+      return adapters.get(normalizeWorkflowEngineId(id, '')) ?? null;
+    },
+    list() {
+      return [...adapters.values()].map((adapter) => ({
+        id: adapter.id,
+        label: adapter.label ?? adapter.id,
+        kind: adapter.kind ?? 'plugin',
+        enabled: adapter.enabled === true,
+        dispatchImplemented: adapter.dispatchImplemented === true,
+        status: adapter.status ?? 'unknown',
+        capabilities: Array.isArray(adapter.capabilities)
+          ? [...adapter.capabilities]
+          : [],
+      }));
+    },
+  };
+}
+
+export function createDisabledExecutorAdapter(descriptor) {
+  const id = normalizeWorkflowEngineId(descriptor?.id, '');
+  if (!id) throw new Error('Disabled executor adapter requires a valid id');
+  const reject = () => {
+    throw gatewayError(
+      'EXECUTOR_ADAPTER_DISABLED',
+      `Executor adapter ${id} is contract-only and cannot dispatch`,
+    );
+  };
+  return {
+    id,
+    label: descriptor.label ?? id,
+    kind: descriptor.kind ?? 'plugin',
+    enabled: false,
+    dispatchImplemented: false,
+    status: 'contract-only',
+    capabilities: Array.isArray(descriptor.capabilities)
+      ? [...descriptor.capabilities]
+      : [],
+    submit: reject,
+    cancel: reject,
+    getState: reject,
+    async *streamEvents() {
+      reject();
+    },
+  };
+}
+
+export function createPhase3ExecutorAdapterRegistry() {
+  return createExecutorAdapterRegistry(
+    PHASE3_EXECUTOR_DESCRIPTORS.map(createDisabledExecutorAdapter),
+  );
+}
+
+export function listPhase3ExecutorAdapters() {
+  return createPhase3ExecutorAdapterRegistry().list();
+}
+
+export function createInMemoryExecutorJobStore() {
+  const byId = new Map();
+  const byIdempotencyKey = new Map();
+  return {
+    durable: false,
+    async getById(jobId) {
+      const value = byId.get(String(jobId ?? '').trim());
+      return value ? clone(value) : null;
+    },
+    async getByIdempotencyKey(key) {
+      const jobId = byIdempotencyKey.get(String(key ?? '').trim());
+      const value = jobId ? byId.get(jobId) : null;
+      return value ? clone(value) : null;
+    },
+    async createIfAbsent(record) {
+      const existingId = byIdempotencyKey.get(record.idempotencyKey);
+      if (existingId) return { created: false, record: clone(byId.get(existingId)) };
+      if (byId.has(record.jobId)) {
+        throw gatewayError('EXECUTOR_JOB_ID_CONFLICT', `Executor job id already exists: ${record.jobId}`);
+      }
+      byId.set(record.jobId, clone(record));
+      byIdempotencyKey.set(record.idempotencyKey, record.jobId);
+      return { created: true, record: clone(record) };
+    },
+    async update(record) {
+      if (!byId.has(record.jobId)) return null;
+      byId.set(record.jobId, clone(record));
+      return clone(record);
+    },
+  };
+}
+
+function validateJobStore(store) {
+  for (const method of ['getById', 'getByIdempotencyKey', 'createIfAbsent', 'update']) {
+    if (typeof store?.[method] !== 'function') {
+      throw new Error(`Executor job store missing method: ${method}`);
+    }
+  }
+}
+
+export function createExecutorGateway({
+  registry = createPhase3ExecutorAdapterRegistry(),
+  store = createInMemoryExecutorJobStore(),
+  nowMs = Date.now,
+} = {}) {
+  if (!registry?.has || !registry?.list) {
+    throw new Error('Executor Gateway requires an adapter registry');
+  }
+  validateJobStore(store);
+
+  function previewNormalized(request) {
+    const adapter = registry.get(request.executor);
+    const fallbackAdapter = request.controls.fallbackExecutor
+      ? registry.get(request.controls.fallbackExecutor)
+      : null;
+    const fallbackRegistered = Boolean(fallbackAdapter);
+    const fallbackAvailable = fallbackAdapter?.enabled === true
+      && fallbackAdapter?.dispatchImplemented === true;
+    const gates = {
+      implementation: EXECUTOR_DISPATCH_IMPLEMENTED,
+      adapterRegistered: Boolean(adapter),
+      adapterEnabled: adapter?.enabled === true,
+      executionAuthorized: request.authorization.executionAllowed,
+      sideEffectsAllowed: request.policy.sideEffectsAllowed,
+      idempotencyKeyPresent: Boolean(request.idempotencyKey),
+      workspaceReferencePresent: Boolean(request.task.workspaceRef),
+    };
+    return {
+      version: 'executor-dispatch-decision-v1',
+      jobId: request.jobId,
+      executor: request.executor,
+      fallbackExecutor: request.controls.fallbackExecutor || null,
+      fallbackRegistered,
+      fallbackAvailable,
+      dispatchAllowed: Object.values(gates).every(Boolean),
+      reason: EXECUTOR_DISPATCH_IMPLEMENTED
+        ? 'executor_adapter_unavailable'
+        : 'executor_dispatch_not_implemented',
+      gates,
+    };
+  }
+
+  async function preview(input) {
+    return previewNormalized(normalizeExecutorJobRequest(input));
+  }
+
+  async function createJob(input) {
+    const request = normalizeExecutorJobRequest(input);
+    const {
+      jobId: _jobId,
+      idempotencyKey: _idempotencyKey,
+      ...semanticRequest
+    } = request;
+    const requestFingerprint = fingerprint(semanticRequest);
+    const existing = await store.getByIdempotencyKey(request.idempotencyKey);
+    if (existing) {
+      if (existing.requestFingerprint !== requestFingerprint) {
+        throw gatewayError(
+          'EXECUTOR_IDEMPOTENCY_CONFLICT',
+          `Idempotency key already belongs to executor job ${existing.jobId}`,
+        );
+      }
+      return { created: false, job: existing };
+    }
+    const decision = previewNormalized(request);
+    const now = nowMs();
+    const record = {
+      version: EXECUTOR_JOB_STATE_VERSION,
+      jobId: request.jobId,
+      idempotencyKey: request.idempotencyKey,
+      requestFingerprint,
+      executor: request.executor,
+      status: 'blocked',
+      reason: decision.reason,
+      attempts: 0,
+      dispatchAllowed: false,
+      cancellationAllowed: request.controls.cancellationAllowed,
+      timeoutMs: request.controls.timeoutMs,
+      fallbackExecutor: decision.fallbackExecutor,
+      fallbackRegistered: decision.fallbackRegistered,
+      fallbackAvailable: decision.fallbackAvailable,
+      decision,
+      createdAt: now,
+      updatedAt: now,
+      startedAt: null,
+      completedAt: now,
+    };
+    const result = await store.createIfAbsent(record);
+    if (
+      !result.created
+      && result.record.requestFingerprint !== requestFingerprint
+    ) {
+      throw gatewayError(
+        'EXECUTOR_IDEMPOTENCY_CONFLICT',
+        `Idempotency key already belongs to executor job ${result.record.jobId}`,
+      );
+    }
+    return { created: result.created, job: result.record };
+  }
+
+  async function cancel(jobId, { reason = 'cancelled_by_request' } = {}) {
+    const current = await store.getById(jobId);
+    if (!current) return null;
+    if (current.status === 'cancelled' || !current.cancellationAllowed) return current;
+    if (TERMINAL_JOB_STATUSES.has(current.status) && current.status !== 'blocked') return current;
+    const now = nowMs();
+    return store.update({
+      ...current,
+      status: 'cancelled',
+      reason: String(reason).slice(0, 256),
+      updatedAt: now,
+      completedAt: now,
+    });
+  }
+
+  return {
+    preview,
+    createJob,
+    cancel,
+    getJob(jobId) {
+      return store.getById(jobId);
+    },
+    listAdapters() {
+      return registry.list();
+    },
+    status() {
+      return {
+        version: 'executor-gateway-status-v1',
+        dispatchImplemented: EXECUTOR_DISPATCH_IMPLEMENTED,
+        executionEnabled: false,
+        store: {
+          kind: store.durable ? 'durable' : 'memory',
+          durable: store.durable === true,
+        },
+        adapters: registry.list(),
+      };
+    },
+  };
+}
+
+export const executorGatewayInternals = {
+  EXECUTOR_DISPATCH_IMPLEMENTED,
+  EXECUTOR_JOB_REQUEST_VERSION,
+  EXECUTOR_JOB_STATE_VERSION,
+  MAX_INSTRUCTION_CHARACTERS,
+  PHASE3_EXECUTOR_DESCRIPTORS,
+  TERMINAL_JOB_STATUSES,
+  fingerprint,
+  stableValue,
+};

services/orchestrator/executor-gateway.test.mjs

@@ -0,0 +1,144 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import {
+  createExecutorAdapterRegistry,
+  createExecutorGateway,
+  createInMemoryExecutorJobStore,
+  createPhase3ExecutorAdapterRegistry,
+  normalizeExecutorJobRequest,
+} from './executor-gateway.mjs';
+
+function request(overrides = {}) {
+  return {
+    jobId: 'job-1',
+    idempotencyKey: 'run-1:node-execute:attempt-1',
+    executor: 'aider',
+    task: {
+      type: 'code_change',
+      instruction: 'Fix the login form validation',
+      workspaceRef: { kind: 'mindspace-workspace', id: 'workspace-1' },
+    },
+    subject: { userId: 'user-1' },
+    authorization: { executionAllowed: true, actorId: 'user-1' },
+    policy: { sideEffectsAllowed: true, networkAllowed: false },
+    controls: {
+      timeoutMs: 20_000,
+      cancellationAllowed: true,
+      fallbackExecutor: 'goosed',
+    },
+    ...overrides,
+  };
+}
+
+test('executor job contract uses resource references and bounded controls', () => {
+  const normalized = normalizeExecutorJobRequest(request({
+    task: {
+      instruction: 'x'.repeat(40_000),
+      workspaceRef: { kind: 'workspace', id: 'workspace-1' },
+      inputRefs: [
+        { kind: 'artifact', id: 'artifact-1' },
+        { kind: '', id: 'invalid' },
+      ],
+    },
+    controls: { timeoutMs: 100, fallbackExecutor: 'openhands' },
+  }));
+  assert.equal(normalized.version, 'executor-job-request-v1');
+  assert.equal(normalized.task.instruction.length, 32_000);
+  assert.deepEqual(normalized.task.workspaceRef, { kind: 'workspace', id: 'workspace-1' });
+  assert.deepEqual(normalized.task.inputRefs, [{ kind: 'artifact', id: 'artifact-1' }]);
+  assert.equal(normalized.controls.timeoutMs, 500);
+  assert.equal(normalized.controls.fallbackExecutor, 'openhands');
+  assert.equal('cwd' in normalized.task, false);
+});
+
+test('Phase 3 executor catalog exposes disabled Goosed, Aider and OpenHands adapters', () => {
+  const registry = createPhase3ExecutorAdapterRegistry();
+  assert.deepEqual(
+    registry.list().map((adapter) => adapter.id),
+    ['goosed', 'aider', 'openhands'],
+  );
+  for (const adapter of registry.list()) {
+    assert.equal(adapter.enabled, false);
+    assert.equal(adapter.dispatchImplemented, false);
+    assert.equal(adapter.status, 'contract-only');
+  }
+});
+
+test('executor adapter registry rejects incomplete and duplicate adapters', () => {
+  const registry = createExecutorAdapterRegistry();
+  assert.throws(() => registry.register({ id: 'broken' }), /missing method/);
+  const adapter = {
+    id: 'custom',
+    submit() {},
+    cancel() {},
+    getState() {},
+    async *streamEvents() {},
+  };
+  registry.register(adapter);
+  assert.throws(() => registry.register(adapter), /already registered/);
+});
+
+test('Executor Gateway records a blocked idempotent job without calling an adapter', async () => {
+  let now = 1000;
+  const gateway = createExecutorGateway({
+    store: createInMemoryExecutorJobStore(),
+    nowMs: () => now,
+  });
+  const preview = await gateway.preview(request());
+  assert.equal(preview.executor, 'aider');
+  assert.equal(preview.fallbackExecutor, 'goosed');
+  assert.equal(preview.fallbackRegistered, true);
+  assert.equal(preview.fallbackAvailable, false);
+  assert.equal(preview.dispatchAllowed, false);
+  assert.equal(preview.gates.implementation, false);
+  assert.equal(preview.gates.adapterEnabled, false);
+
+  const first = await gateway.createJob(request());
+  assert.equal(first.created, true);
+  assert.equal(first.job.status, 'blocked');
+  assert.equal(first.job.attempts, 0);
+  assert.equal(first.job.reason, 'executor_dispatch_not_implemented');
+
+  now = 2000;
+  const repeated = await gateway.createJob(request());
+  assert.equal(repeated.created, false);
+  assert.equal(repeated.job.jobId, first.job.jobId);
+  assert.equal(repeated.job.createdAt, 1000);
+});
+
+test('Executor Gateway rejects idempotency key reuse with a different payload', async () => {
+  const gateway = createExecutorGateway();
+  await gateway.createJob(request());
+  await assert.rejects(
+    () => gateway.createJob(request({
+      jobId: 'job-2',
+      task: {
+        type: 'code_change',
+        instruction: 'A different instruction',
+        workspaceRef: { kind: 'mindspace-workspace', id: 'workspace-1' },
+      },
+    })),
+    (error) => error.code === 'EXECUTOR_IDEMPOTENCY_CONFLICT',
+  );
+});
+
+test('Executor Gateway cancellation is idempotent and never invokes a disabled adapter', async () => {
+  let now = 1000;
+  const gateway = createExecutorGateway({ nowMs: () => now });
+  await gateway.createJob(request());
+  now = 1500;
+  const cancelled = await gateway.cancel('job-1', { reason: 'user_cancelled' });
+  assert.equal(cancelled.status, 'cancelled');
+  assert.equal(cancelled.reason, 'user_cancelled');
+  assert.equal(cancelled.completedAt, 1500);
+  assert.deepEqual(await gateway.cancel('job-1'), cancelled);
+  assert.equal(await gateway.cancel('missing-job'), null);
+});
+
+test('Executor Gateway status remains hard-disabled with a non-durable reference store', () => {
+  const status = createExecutorGateway().status();
+  assert.equal(status.version, 'executor-gateway-status-v1');
+  assert.equal(status.dispatchImplemented, false);
+  assert.equal(status.executionEnabled, false);
+  assert.deepEqual(status.store, { kind: 'memory', durable: false });
+});