diff --git a/back/runtime/adapters/legacy-sequelize/cancellationDispatchRepository.ts b/back/runtime/adapters/legacy-sequelize/cancellationDispatchRepository.ts
index e52353e4..fcb297bb 100644
--- a/back/runtime/adapters/legacy-sequelize/cancellationDispatchRepository.ts
+++ b/back/runtime/adapters/legacy-sequelize/cancellationDispatchRepository.ts
@@ -1,3 +1,4 @@
+import { createHash } from 'crypto';
 import {
   DataTypes,
   Model,
@@ -55,6 +56,19 @@ const BLOCKING_RESULTS: readonly CancellationDispatchResult[] = [
   'unsupported',
   'invalid',
 ];
+const MAX_LEASE_DURATION_MS = 5 * 60_000;
+const MAX_RETRY_DELAY_MS = 24 * 60 * 60_000;
+
+export interface LegacySequelizeCancellationDispatchRepositoryOptions {
+  clock?: () => number;
+}
+
+function digestLeaseToken(value: string): string {
+  return createHash('sha256')
+    .update('qinglong.cancellation-dispatch-lease.v1\0', 'utf8')
+    .update(value, 'utf8')
+    .digest('hex');
+}
 
 interface CancellationDispatchRow {
   runId: string;
@@ -287,18 +301,13 @@ function assertClaim(command: ClaimCancellationDispatchCommand): void {
   assertId('owner', command.owner, 128);
   assertId('leaseToken', command.leaseToken, 128);
   assertTimestamp('requestedAtMs', command.requestedAtMs);
-  assertTimestamp('nowMs', command.nowMs);
   if (
     !Number.isSafeInteger(command.leaseDurationMs) ||
-    command.leaseDurationMs < 1
+    command.leaseDurationMs < 1 ||
+    command.leaseDurationMs > MAX_LEASE_DURATION_MS
   ) {
     throw new InvalidCancellationDispatchCommandError(
-      'leaseDurationMs must be a positive safe integer',
-    );
-  }
-  if (!Number.isSafeInteger(command.nowMs + command.leaseDurationMs)) {
-    throw new InvalidCancellationDispatchCommandError(
-      'lease expiry exceeds the supported range',
+      `leaseDurationMs must be between 1 and ${MAX_LEASE_DURATION_MS}`,
     );
   }
 }
@@ -311,7 +320,6 @@ function assertRecordResult(
   assertId('owner', command.owner, 128);
   assertId('leaseToken', command.leaseToken, 128);
   assertId('eventId', command.eventId);
-  assertTimestamp('atMs', command.atMs);
   if (
     !Number.isSafeInteger(command.expectedVersion) ||
     command.expectedVersion < 1
@@ -327,17 +335,18 @@ function assertRecordResult(
   }
   if (RETRYABLE_RESULTS.includes(command.result)) {
     if (
-      command.nextAttemptAtMs === undefined ||
-      !Number.isSafeInteger(command.nextAttemptAtMs) ||
-      command.nextAttemptAtMs <= command.atMs
+      command.retryDelayMs === undefined ||
+      !Number.isSafeInteger(command.retryDelayMs) ||
+      command.retryDelayMs < 1 ||
+      command.retryDelayMs > MAX_RETRY_DELAY_MS
     ) {
       throw new InvalidCancellationDispatchCommandError(
-        'retryable results require nextAttemptAtMs greater than atMs',
+        `retryable results require retryDelayMs between 1 and ${MAX_RETRY_DELAY_MS}`,
       );
     }
-  } else if (command.nextAttemptAtMs !== undefined) {
+  } else if (command.retryDelayMs !== undefined) {
     throw new InvalidCancellationDispatchCommandError(
-      'terminal results must not include nextAttemptAtMs',
+      'terminal results must not include retryDelayMs',
     );
   }
 }
@@ -417,7 +426,9 @@ function rowToDispatch(
       ? {}
       : { nextAttemptAtMs: Number(row.nextAttemptAtMs) }),
     ...(row.leaseOwner === null ? {} : { leaseOwner: row.leaseOwner }),
-    ...(row.leaseToken === null ? {} : { leaseToken: row.leaseToken }),
+    ...(row.leaseToken === null
+      ? {}
+      : { leaseTokenDigest: digestLeaseToken(row.leaseToken) }),
     ...(row.leaseExpiresAtMs === null
       ? {}
       : { leaseExpiresAtMs: Number(row.leaseExpiresAtMs) }),
@@ -447,12 +458,15 @@ function withoutScheduleAndLease(
   dispatch: CancellationDispatchRecord,
 ): Omit<
   CancellationDispatchRecord,
-  'nextAttemptAtMs' | 'leaseOwner' | 'leaseToken' | 'leaseExpiresAtMs'
+  | 'nextAttemptAtMs'
+  | 'leaseOwner'
+  | 'leaseTokenDigest'
+  | 'leaseExpiresAtMs'
 > {
   const {
     nextAttemptAtMs: _nextAttemptAtMs,
     leaseOwner: _leaseOwner,
-    leaseToken: _leaseToken,
+    leaseTokenDigest: _leaseTokenDigest,
     leaseExpiresAtMs: _leaseExpiresAtMs,
     ...rest
   } = dispatch;
@@ -466,12 +480,17 @@ export class LegacySequelizeCancellationDispatchRepository
   private readonly run: ModelStatic<CancellationDispatchRunInstance>;
   private readonly attempt: ModelStatic<CancellationDispatchAttemptInstance>;
   private readonly event: ModelStatic<CancellationDispatchEventInstance>;
+  private readonly clock: () => number;
 
-  constructor(private readonly database: Sequelize) {
+  constructor(
+    private readonly database: Sequelize,
+    options: LegacySequelizeCancellationDispatchRepositoryOptions = {},
+  ) {
     this.dispatch = defineDispatchModel(database);
     this.run = defineRunModel(database);
     this.attempt = defineAttemptModel(database);
     this.event = defineEventModel(database);
+    this.clock = options.clock ?? Date.now;
   }
 
   async findByRunId(runId: string): Promise<CancellationDispatchRecord | null> {
@@ -489,6 +508,7 @@ export class LegacySequelizeCancellationDispatchRepository
     return this.database.transaction(
       { type: Transaction.TYPES.IMMEDIATE },
       async (transaction) => {
+        const nowMs = this.now();
         const [run, attempt] = await Promise.all([
           this.run.findByPk(command.runId, { raw: true, transaction }),
           this.attempt.findByPk(command.attemptId, { raw: true, transaction }),
@@ -530,8 +550,8 @@ export class LegacySequelizeCancellationDispatchRepository
                 leaseExpiresAtMs: null,
                 lastResult: null,
                 lastDispatchedAtMs: null,
-                createdAtMs: command.nowMs,
-                updatedAtMs: command.nowMs,
+                createdAtMs: nowMs,
+                updatedAtMs: nowMs,
               },
               { transaction },
             );
@@ -556,21 +576,26 @@ export class LegacySequelizeCancellationDispatchRepository
         if (
           dispatch.status === 'leased' &&
           dispatch.leaseExpiresAtMs !== undefined &&
-          dispatch.leaseExpiresAtMs > command.nowMs
+          dispatch.leaseExpiresAtMs > nowMs
         ) {
           return { status: 'leased', dispatch };
         }
         if (
           dispatch.status !== 'leased' &&
           dispatch.nextAttemptAtMs !== undefined &&
-          dispatch.nextAttemptAtMs > command.nowMs
+          dispatch.nextAttemptAtMs > nowMs
         ) {
           return { status: 'not_due', dispatch };
         }
 
         const nextVersion = dispatch.version + 1;
         const nextCount = dispatch.dispatchCount + 1;
-        const leaseExpiresAtMs = command.nowMs + command.leaseDurationMs;
+        const leaseExpiresAtMs = nowMs + command.leaseDurationMs;
+        if (!Number.isSafeInteger(leaseExpiresAtMs)) {
+          throw new CancellationDispatchRepositoryError(
+            new Error('Cancellation dispatch lease expiry overflowed'),
+          );
+        }
         const [affected] = await this.dispatch.update(
           {
             status: 'leased',
@@ -580,7 +605,7 @@ export class LegacySequelizeCancellationDispatchRepository
             leaseOwner: command.owner,
             leaseToken: command.leaseToken,
             leaseExpiresAtMs,
-            updatedAtMs: command.nowMs,
+            updatedAtMs: nowMs,
           },
           {
             where: { runId: command.runId, version: dispatch.version },
@@ -592,15 +617,16 @@ export class LegacySequelizeCancellationDispatchRepository
         }
         return {
           status: 'claimed',
+          leaseToken: command.leaseToken,
           dispatch: {
             ...withoutScheduleAndLease(dispatch),
             status: 'leased',
             version: nextVersion,
             dispatchCount: nextCount,
             leaseOwner: command.owner,
-            leaseToken: command.leaseToken,
+            leaseTokenDigest: digestLeaseToken(command.leaseToken),
             leaseExpiresAtMs,
-            updatedAtMs: command.nowMs,
+            updatedAtMs: nowMs,
           },
         };
       },
@@ -614,6 +640,7 @@ export class LegacySequelizeCancellationDispatchRepository
     return this.database.transaction(
       { type: Transaction.TYPES.IMMEDIATE },
       async (transaction) => {
+        const atMs = this.now();
         const row = (await this.dispatch.findByPk(command.runId, {
           raw: true,
           transaction,
@@ -644,6 +671,18 @@ export class LegacySequelizeCancellationDispatchRepository
         ].includes(command.result);
         const nextVersion = row.version + 1;
         const nextSequence = Number(run.eventSequence) + 1;
+        const nextAttemptAtMs =
+          command.retryDelayMs === undefined
+            ? undefined
+            : atMs + command.retryDelayMs;
+        if (
+          nextAttemptAtMs !== undefined &&
+          !Number.isSafeInteger(nextAttemptAtMs)
+        ) {
+          throw new CancellationDispatchRepositoryError(
+            new Error('Cancellation dispatch retry deadline overflowed'),
+          );
+        }
         const [runAffected] = await this.run.update(
           { version: Number(run.version) + 1, eventSequence: nextSequence },
           { where: { id: command.runId, version: run.version }, transaction },
@@ -655,15 +694,15 @@ export class LegacySequelizeCancellationDispatchRepository
           {
             status: state.status,
             version: nextVersion,
-            nextAttemptAtMs: command.nextAttemptAtMs ?? null,
+            nextAttemptAtMs: nextAttemptAtMs ?? null,
             leaseOwner: null,
             leaseToken: null,
             leaseExpiresAtMs: null,
             lastResult: command.result,
             lastDispatchedAtMs: controllerInvoked
-              ? command.atMs
+              ? atMs
               : row.lastDispatchedAtMs,
-            updatedAtMs: command.atMs,
+            updatedAtMs: atMs,
           },
           {
             where: {
@@ -694,7 +733,7 @@ export class LegacySequelizeCancellationDispatchRepository
             dispatch_count: row.dispatchCount,
             result: command.result,
           },
-          createdAtMs: command.atMs,
+          createdAtMs: atMs,
         };
         await this.event.create(
           {
@@ -716,20 +755,30 @@ export class LegacySequelizeCancellationDispatchRepository
             ...withoutScheduleAndLease(rowToDispatch(row)),
             status: state.status,
             version: nextVersion,
-            ...(command.nextAttemptAtMs === undefined
+            ...(nextAttemptAtMs === undefined
               ? {}
-              : { nextAttemptAtMs: command.nextAttemptAtMs }),
+              : { nextAttemptAtMs }),
             lastResult: command.result,
             ...(controllerInvoked
-              ? { lastDispatchedAtMs: command.atMs }
+              ? { lastDispatchedAtMs: atMs }
               : row.lastDispatchedAtMs === null
               ? {}
               : { lastDispatchedAtMs: Number(row.lastDispatchedAtMs) }),
-            updatedAtMs: command.atMs,
+            updatedAtMs: atMs,
           },
           event,
         };
       },
     );
   }
+
+  private now(): number {
+    const nowMs = this.clock();
+    if (!Number.isSafeInteger(nowMs) || nowMs < 0) {
+      throw new CancellationDispatchRepositoryError(
+        new Error('Cancellation dispatch repository clock is invalid'),
+      );
+    }
+    return nowMs;
+  }
 }
diff --git a/back/runtime/application/primaryCancellationDispatcher.ts b/back/runtime/application/primaryCancellationDispatcher.ts
index 68d4b15b..928a822a 100644
--- a/back/runtime/application/primaryCancellationDispatcher.ts
+++ b/back/runtime/application/primaryCancellationDispatcher.ts
@@ -35,7 +35,6 @@ export interface PrimaryCancellationDispatcherOptions {
   leaseDurationMs?: number;
   retryBaseMs?: number;
   retryMaxMs?: number;
-  clock?: () => number;
   createId?: () => string;
 }
 
@@ -55,7 +54,6 @@ export class PrimaryCancellationDispatcher {
   private readonly leaseDurationMs: number;
   private readonly retryBaseMs: number;
   private readonly retryMaxMs: number;
-  private readonly clock: () => number;
   private readonly createId: () => string;
 
   constructor(
@@ -71,7 +69,6 @@ export class PrimaryCancellationDispatcher {
     this.leaseDurationMs = options.leaseDurationMs ?? DEFAULT_LEASE_DURATION_MS;
     this.retryBaseMs = options.retryBaseMs ?? DEFAULT_RETRY_BASE_MS;
     this.retryMaxMs = options.retryMaxMs ?? DEFAULT_RETRY_MAX_MS;
-    this.clock = options.clock ?? Date.now;
     this.createId = options.createId ?? uuidV7;
     assertPositiveInteger('leaseDurationMs', this.leaseDurationMs);
     assertPositiveInteger('retryBaseMs', this.retryBaseMs);
@@ -130,7 +127,6 @@ export class PrimaryCancellationDispatcher {
       }
 
       const attempt = candidate.attempts[0];
-      const claimedAtMs = this.now();
       let claim;
       try {
         claim = await this.dispatches.claim({
@@ -139,7 +135,6 @@ export class PrimaryCancellationDispatcher {
           requestedAtMs: candidate.requestedAtMs,
           owner: this.owner,
           leaseToken: this.createId(),
-          nowMs: claimedAtMs,
           leaseDurationMs: this.leaseDurationMs,
         });
       } catch {
@@ -165,6 +160,11 @@ export class PrimaryCancellationDispatcher {
         summary.blocked += 1;
         continue;
       }
+      if (claim.status !== 'claimed') {
+        summary.failed += 1;
+        summary.pending += 1;
+        continue;
+      }
 
       summary.claimed += 1;
       await this.dispatchClaimed(
@@ -172,6 +172,7 @@ export class PrimaryCancellationDispatcher {
         candidate.requestedAtMs,
         attempt,
         claim.dispatch,
+        claim.leaseToken,
         summary,
       );
     }
@@ -186,15 +187,28 @@ export class PrimaryCancellationDispatcher {
       Awaited<ReturnType<CancellationDispatchRepository['claim']>>,
       { status: 'claimed' }
     >['dispatch'],
+    leaseToken: string,
     summary: PrimaryCancellationDispatchSummary,
   ): Promise<void> {
     const controller = this.controllers.get(attempt.executorType);
     if (!controller) {
-      await this.record(attempt, dispatch, 'controller_missing', summary);
+      await this.record(
+        attempt,
+        dispatch,
+        leaseToken,
+        'controller_missing',
+        summary,
+      );
       return;
     }
     if (!attempt.executorHandle) {
-      await this.record(attempt, dispatch, 'handle_missing', summary);
+      await this.record(
+        attempt,
+        dispatch,
+        leaseToken,
+        'handle_missing',
+        summary,
+      );
       return;
     }
 
@@ -207,7 +221,7 @@ export class PrimaryCancellationDispatcher {
           requestedAtMs,
         },
       });
-      await this.record(attempt, dispatch, result.status, summary);
+      await this.record(attempt, dispatch, leaseToken, result.status, summary);
       if (result.status === 'termination_requested') {
         summary.terminationRequested += 1;
       } else if (result.status === 'already_exited') {
@@ -217,7 +231,13 @@ export class PrimaryCancellationDispatcher {
       }
     } catch {
       summary.failed += 1;
-      await this.record(attempt, dispatch, 'dispatch_error', summary);
+      await this.record(
+        attempt,
+        dispatch,
+        leaseToken,
+        'dispatch_error',
+        summary,
+      );
     }
   }
 
@@ -227,10 +247,10 @@ export class PrimaryCancellationDispatcher {
       Awaited<ReturnType<CancellationDispatchRepository['claim']>>,
       { status: 'claimed' }
     >['dispatch'],
+    leaseToken: string,
     result: CancellationDispatchResult,
     summary: PrimaryCancellationDispatchSummary,
   ): Promise<void> {
-    const atMs = this.now();
     const retryable = [
       'controller_missing',
       'handle_missing',
@@ -241,12 +261,11 @@ export class PrimaryCancellationDispatcher {
         runId: dispatch.runId,
         attemptId: attempt.attemptId,
         owner: this.owner,
-        leaseToken: dispatch.leaseToken!,
+        leaseToken,
         expectedVersion: dispatch.version,
         result,
-        atMs,
         ...(retryable
-          ? { nextAttemptAtMs: this.nextRetryAt(atMs, dispatch.dispatchCount) }
+          ? { retryDelayMs: this.nextRetryDelay(dispatch.dispatchCount) }
           : {}),
         eventId: this.createId(),
       });
@@ -257,17 +276,8 @@ export class PrimaryCancellationDispatcher {
     }
   }
 
-  private nextRetryAt(atMs: number, dispatchCount: number): number {
+  private nextRetryDelay(dispatchCount: number): number {
     const exponent = Math.max(0, Math.min(dispatchCount - 1, 30));
-    const delay = Math.min(this.retryMaxMs, this.retryBaseMs * 2 ** exponent);
-    return Math.min(Number.MAX_SAFE_INTEGER, atMs + delay);
-  }
-
-  private now(): number {
-    const nowMs = this.clock();
-    if (!Number.isSafeInteger(nowMs) || nowMs < 0) {
-      throw new RangeError('clock must return a non-negative safe integer');
-    }
-    return nowMs;
+    return Math.min(this.retryMaxMs, this.retryBaseMs * 2 ** exponent);
   }
 }
diff --git a/back/runtime/domain/cancellationDispatch.ts b/back/runtime/domain/cancellationDispatch.ts
index 10c39350..1c1fb64b 100644
--- a/back/runtime/domain/cancellationDispatch.ts
+++ b/back/runtime/domain/cancellationDispatch.ts
@@ -32,7 +32,7 @@ export interface CancellationDispatchRecord {
   dispatchCount: number;
   nextAttemptAtMs?: number;
   leaseOwner?: string;
-  leaseToken?: string;
+  leaseTokenDigest?: string;
   leaseExpiresAtMs?: number;
   lastResult?: CancellationDispatchResult;
   lastDispatchedAtMs?: number;
diff --git a/back/runtime/ports/cancellationDispatchRepository.ts b/back/runtime/ports/cancellationDispatchRepository.ts
index 6a54e959..b39b4c64 100644
--- a/back/runtime/ports/cancellationDispatchRepository.ts
+++ b/back/runtime/ports/cancellationDispatchRepository.ts
@@ -10,12 +10,15 @@ export interface ClaimCancellationDispatchCommand {
   requestedAtMs: number;
   owner: string;
   leaseToken: string;
-  nowMs: number;
   leaseDurationMs: number;
 }
 
 export type ClaimCancellationDispatchResult =
-  | { status: 'claimed'; dispatch: CancellationDispatchRecord }
+  | {
+      status: 'claimed';
+      dispatch: CancellationDispatchRecord;
+      leaseToken: string;
+    }
   | { status: 'not_eligible' }
   | {
       status: 'not_due' | 'leased' | 'dispatched' | 'blocked';
@@ -29,8 +32,7 @@ export interface RecordCancellationDispatchResultCommand {
   leaseToken: string;
   expectedVersion: number;
   result: CancellationDispatchResult;
-  atMs: number;
-  nextAttemptAtMs?: number;
+  retryDelayMs?: number;
   eventId: string;
 }
 
diff --git a/docs/QINGLONG_3_0_ARCHITECTURE_RFC.md b/docs/QINGLONG_3_0_ARCHITECTURE_RFC.md
index 81ea31c4..53163f4f 100644
--- a/docs/QINGLONG_3_0_ARCHITECTURE_RFC.md
+++ b/docs/QINGLONG_3_0_ARCHITECTURE_RFC.md
@@ -11,6 +11,17 @@
 
 最新增量证据（2026-08-19）：
 
+- D-363/ADR-0456（已接受；Cluster 生产启动拓扑待接入）：完成 profile-neutral CancellationDispatch canonical contract 与 PostgreSQL
+  `pg-0066-cancellation-dispatch`/capability v65 adapter。公共契约仅从显式子路径发布，调用方不提交当前时间、lease expiry 或绝对 retry timestamp；
+  PostgreSQL 以 `transaction_timestamp()` 作为 lease/retry authority，按 Run→Attempt→dispatch 固定锁序执行 claim/result。raw lease token 只随成功 claim
+  返回，durable record、表、WAL 与事件只保存 domain-separated SHA-256 digest；结果事务原子完成 dispatch 更新、Run version CAS 与低敏 RunEvent，runtime
+  角色对新表只有 SELECT/INSERT/UPDATE。新增能力收进 `run/cancellation-dispatch` 与 `run/migrations` 子域，没有扩大 workspace package 数、根入口、生产依赖、
+  timer、连接、端口或 Kubernetes 对象；Local legacy adapter 复用 canonical outward record，但本阶段不冒充已迁移既有 SQLite raw-token 存量。完整 backend
+  `1,487 pass / 0 fail / 2 conditional skip`；18-package clean/build 退出 0，18-package 顺序测试单次退出 0；五项架构审计与 `14/14` artifact audit
+  全部通过，基础 Edge/Standalone 仍为 `2,589,998 / 2,590,076` bytes 且不包含 PostgreSQL 闭包。PostgreSQL 18.6 arm64 HA 门
+  `144/144`，覆盖双连接单 claim、数据库时间、digest-only token、租约接管、stale fence、retry due、事务回滚、WAL standby 与 promotion 后读取；timeline
+  `1→2`，报告 SHA-256 为 `b168b25023f7aad623153d22e41cccfe5f511a6985dc75c9e9e20073f980d5cb`，临时容器已清理。
+
 - D-362/ADR-0455（已接受；首次真实目标实例执行待运维）：manual Primary 默认 bootstrap 在 router 安装后、`activated` 审计前原子发布
   `qinglong/manual-primary-runtime-receipt@v1` 当前状态，并在清理前后推进 `active → stopping → stopped`；激活或停止失败收敛为 `failed`。receipt 固定为 config root
   内一个 `0600`、8 KiB 上限、有 domain-separated 自摘要的 observed-state projection，绑定 Profile、manifest revision 与原始 SHA-256，但不成为第二 rollout authority。
@@ -9214,7 +9225,7 @@ flowchart LR
 | PR-2 Run 状态机 | Incubating | 纯转换表、终态/时间/错误/执行器元数据规则、Run version 与 event sequence CAS、事务性 RunCommandService、回滚测试 | 重复 Worker callback/fencing、并发数据库压力测试、Primary 执行链接入 |
 | PR-3 Executor 端口 | Incubating | ADR-0003、ExecutionSpec/Context/Handle/Result、Executor port、LocalProcessExecutor、进程组取消/超时升级、流式背压、Legacy Cron spec builder、真实进程 contract tests、可复现 edge 基准入口 | 固定 edge/多架构设备基线、Legacy builder 与 makeCommand 差异审计、Primary 生产流量接入 |
 | PR-4 Shadow Run | Incubating | origin 三态策略；默认关闭的 `QL3_SHADOW_ORIGINS`；manual、scheduled_node、boot、subscription、system 与 script 现有 ChildProcess 旁路观察；system crond 显式 origin marker、Shell execution ID、finish-only 准入、确定性 Run/Attempt 与 exact replay；`@once` 保持 manual、gRPC transport 不冒充 origin 的准入裁决；每个 worker 懒加载；Run/Attempt/Event 影子生命周期；稳定且不复制 caller 原文的 task identity/revision 与有界日志引用；同 worker 有界注册表和跨 worker 持久化候选关联；stop all/stop instance、Shell callback、乱序/迟到/歧义处理；监听前一次性、Profile-aware 的 keyset Startup Reconciler，终态证据补齐、lost/abandoned/pending 分流与 terminal Attempt response-loss 修复；origin-bounded 且逐级守恒的版本化 startup difference report、固定字段 metric batch 与一次性 collector；显式、只读、闭合窗口且 Profile-bounded 的 Shadow→Legacy 终态差异审计；128/256 MiB Linux arm64 资源门、SQLite 零增长与 Shadow enabled→off 进程重启回滚；process-epoch Legacy admission/capture/failure/pending 守恒；clean-shutdown `0600` no-replace capture+startup exporter；manual Edge 8/Standalone 32–128 canary；capture/terminal/resource 自包含 Primary bundle；rollout v2 loader 重算 source digest 与 eligibility；不可变 prepare/observe/resource/qualify 目标实例仪式、独立只读 audit；失败开放和契约测试 | 首次真实目标实例完整 canary 与 bootstrap activated 记录、其他 origin 独立 capture/Primary gate、固定物理 edge/flash/断电证据 |
-| PR-5 Primary LocalExecutor | Incubating（默认不激活，仅 manifest-gated manual） | runtime-owned Run 创建器；持久化先于 spawn；Run/Attempt 完整成功、失败、取消、超时与 lost 闭环；Executor handle 身份校验；spawn 后激活写失败的 stop+lost 补偿；completion rejection 安全收敛；独立 Primary 幂等查询与唯一索引竞态裁决；durable `run.cancel_requested`、stop-before-signal、首次请求幂等、晚到完成裁决与待取消有界恢复查询；最多 64 条一页的 cross-worker cancellation source；独立 CancellationDispatch Repository 原子 claim/result、lease expiry 接管、owner/token/version fencing、指数退避与结果 RunEvent；最多 64 页的单周期 cancel supervisor；显式 start/stop、无重叠、错误隔离、停止等待有上限且 timer unref 的 lifecycle runner；Linux durable handle 的 PID/boot/start ticks/process-group 复验与 TERM/KILL controller；完整有界分页且 fail-closed 的 startup Reconcile supervisor；RunningInstance nullable `run_id/attempt_id` 关联；Primary 专用组合 Repository 在同一 SQLite 事务提交前投影 Crontab/RunningInstance，失败整体回滚；有界且防穿越的 legacy log output ref；manual owner seam、真实本机装配、单 spawn/fail-closed；严格 manual-only rollout manifest loader、短期审批/gate、配置哈希审计；HTTP worker 已接轻量 lazy bootstrap，accepted 后按 receipt-first reconcile→completion receipt lifecycle→timeout intent lifecycle→cancel dispatch lifecycle→router→durable active receipt 顺序激活，失败撤销，监听失败和 shutdown 以 stopping→有界清理→stopped/failed 失效；receipt 固定为单文件 observed-state projection，Linux 以 boot/PID/process-group/start ticks 复验，独立 auditor 支持 active 且 off/rolled-back 拒绝 live runtime；Primary timeout 在 spawn 前持久化绝对 deadline，有界 source/requester/supervisor 只提交 timeout 意图并复用 CancellationDispatch；代码级 edge/standalone Profile 为各 lifecycle 提供不同 cadence 与页上限，cluster-control/worker 拒绝误装本机 SQLite Primary；统一 CompletionService 原子提交 Attempt/Run/双 Event，spawn 前保存 callback token hash、终态推进 sequence，实时回调与 receipt consumer 共享入口并覆盖两个清理 crash window；manual Primary 已接入受限 POSIX launcher、`0600` direct-file stdout/stderr、父进程退出后续写、不可覆盖 receipt 生产、回执环境清除、TERM 转发等待及 live transaction 后清理；Startup Reconciler receipt-first 双检查并在确定 exited 后执行 profile 化的单次 50/100 ms publish grace；`0007` 独立 CompletionReceiptJournal 在 spawn 前登记、为升级前 active Attempt 补登记并驱动周期扫描，使终态残留继续可发现；确定无效的已知 Attempt receipt 先持久化隔离状态，再进入确定性私有分片 quarantine；终态 missing 与 quarantine 按 edge/standalone retention 有界清理；非 Journal 文件具备只读优先、固定分片/条目上限、overflow fail-closed、显式同盘隔离的 Node 24 运维 CLI；扫描具备页上限、resume cursor、timer unref、无重叠、有界 stop 和低敏计数；ENOSPC 与 launcher receipt 存储失败有代码门禁；显式最长 24 小时 approve 写入、`primary_selected` 只读状态、selection receipt、approval-expiry off 与 intent/completion crash-replay rollback | 首次真实目标实例完整激活/回滚仪式；PostgreSQL CancellationDispatch adapter；cluster-control 生产启动拓扑；固定 edge/Linux 多架构与真实磁盘压力基线、完整 2.x API 契约和回滚演练；共享 config 多写者 authority |
+| PR-5 Primary LocalExecutor | Incubating（默认不激活，仅 manifest-gated manual） | runtime-owned Run 创建器；持久化先于 spawn；Run/Attempt 完整成功、失败、取消、超时与 lost 闭环；Executor handle 身份校验；spawn 后激活写失败的 stop+lost 补偿；completion rejection 安全收敛；独立 Primary 幂等查询与唯一索引竞态裁决；durable `run.cancel_requested`、stop-before-signal、首次请求幂等、晚到完成裁决与待取消有界恢复查询；最多 64 条一页的 cross-worker cancellation source；独立 CancellationDispatch Repository 原子 claim/result、lease expiry 接管、owner/token/version fencing、指数退避与结果 RunEvent；PostgreSQL `pg-0066`/capability v65 adapter 以数据库时间、Run→Attempt→dispatch 锁序、digest-only durable token、最小 runtime 权限和原子 RunEvent/Run version CAS 提供多副本同构实现，真实双连接与 HA promotion 门已通过；最多 64 页的单周期 cancel supervisor；显式 start/stop、无重叠、错误隔离、停止等待有上限且 timer unref 的 lifecycle runner；Linux durable handle 的 PID/boot/start ticks/process-group 复验与 TERM/KILL controller；完整有界分页且 fail-closed 的 startup Reconcile supervisor；RunningInstance nullable `run_id/attempt_id` 关联；Primary 专用组合 Repository 在同一 SQLite 事务提交前投影 Crontab/RunningInstance，失败整体回滚；有界且防穿越的 legacy log output ref；manual owner seam、真实本机装配、单 spawn/fail-closed；严格 manual-only rollout manifest loader、短期审批/gate、配置哈希审计；HTTP worker 已接轻量 lazy bootstrap，accepted 后按 receipt-first reconcile→completion receipt lifecycle→timeout intent lifecycle→cancel dispatch lifecycle→router→durable active receipt 顺序激活，失败撤销，监听失败和 shutdown 以 stopping→有界清理→stopped/failed 失效；receipt 固定为单文件 observed-state projection，Linux 以 boot/PID/process-group/start ticks 复验，独立 auditor 支持 active 且 off/rolled-back 拒绝 live runtime；Primary timeout 在 spawn 前持久化绝对 deadline，有界 source/requester/supervisor 只提交 timeout 意图并复用 CancellationDispatch；代码级 edge/standalone Profile 为各 lifecycle 提供不同 cadence 与页上限，cluster-control/worker 拒绝误装本机 SQLite Primary；统一 CompletionService 原子提交 Attempt/Run/双 Event，spawn 前保存 callback token hash、终态推进 sequence，实时回调与 receipt consumer 共享入口并覆盖两个清理 crash window；manual Primary 已接入受限 POSIX launcher、`0600` direct-file stdout/stderr、父进程退出后续写、不可覆盖 receipt 生产、回执环境清除、TERM 转发等待及 live transaction 后清理；Startup Reconciler receipt-first 双检查并在确定 exited 后执行 profile 化的单次 50/100 ms publish grace；`0007` 独立 CompletionReceiptJournal 在 spawn 前登记、为升级前 active Attempt 补登记并驱动周期扫描，使终态残留继续可发现；确定无效的已知 Attempt receipt 先持久化隔离状态，再进入确定性私有分片 quarantine；终态 missing 与 quarantine 按 edge/standalone retention 有界清理；非 Journal 文件具备只读优先、固定分片/条目上限、overflow fail-closed、显式同盘隔离的 Node 24 运维 CLI；扫描具备页上限、resume cursor、timer unref、无重叠、有界 stop 和低敏计数；ENOSPC 与 launcher receipt 存储失败有代码门禁；显式最长 24 小时 approve 写入、`primary_selected` 只读状态、selection receipt、approval-expiry off 与 intent/completion crash-replay rollback | 首次真实目标实例完整激活/回滚仪式；cluster-control 生产启动拓扑；固定 edge/Linux 多架构与真实磁盘压力基线、完整 2.x API 契约和回滚演练；共享 config 多写者 authority |
 | PR-7 Worker Session、Run Lease 与启动协议基础 | Incubating（默认关闭，独立入口显式 opt-in） | ADR-0012/0013/0014/0021/0057–0061/0108–0121/0231–0239/0377；有界 capability/Placement/Dispatcher；SQLite 协议孵化与 PostgreSQL v9 Session/Run Lease/credential/attestation authority；immutable revision Placement、数据库时钟 keyset candidate、认证 Worker Pull、digest-only offer recovery；versioned capability-free ExecutionSpec response、stable claim 跨重启退避、单 owner 原子 inbox 准入与 TLS 1.3 mTLS/`ql3w` HTTPS client；同一 package journal 上 revision-fenced starting/spawn/started/running/completion 状态、callback digest、tagged no-spawn 与 ambiguous recovery；PostgreSQL starting/running/start-failure/completion 数据库权威事务、精确重放与 cancellation/timeout 优先终态；batch Secret delivery 在 Attempt advisory lock 下复验 Session/Lease/revision 完整围栏并复用单 Agent，Secret-before-Artifact materializer 将同一 log ID 交给 Executor/journal/running ACK；offer-scoped `wlog-*` 私有文件 spool、Edge/Node 容量策略、append/quota/path 防护、barrier 后 output ownership、受审 POSIX Executor、truncation fact、固定内存流式 source、认证 Artifact stream、共享 immutable store port、S3-compatible SSE/checksum/条件 promotion adapter、upload-before-completion 协调，以及 Local/Cluster 同构、Profile-aware、ETag-fenced range read；用户取消 run.stop mutation 以数据库时间写 intent/Event 并在事务内复验 Project/RoleBinding fence；非执行取消 convergence lifecycle、运行期 expiry 与安全 lost retry 已接入 cluster-control 单一全局 cadence；完整 generation/version/token/Attempt fencing；独立最小权限 Worker ingress、CA/CRL 与连接 generation 热重载；offer journal、spawn barrier、receipt-first recovery；独立 `@qinglong/worker-runtime` 的本地 P-256 CSR、key/chain/trust 验证、generation + active pointer 安装和持久退避；默认关闭的 production process 已装配具体 execution graph、完整 Session heartbeat/drain/offline、direct-file bootstrap、单 Agent/单 cadence、startup reconciliation、证书 maintenance、transport fail-close/recovery 与 Edge/Node 有界预算；真实 PostgreSQL 18 + Linux Node 合约已覆盖 Run completion、credential 和 CA 双轮换且保持同一 Session；真实 K3s 合约已覆盖 TLS/credential Secret 分权、双对象 CAS、Recreate 顺序、identity generation 与单节点 PVC recovery；所有能力默认不可达且受 edge/cluster import audit 约束 | 具体 cert-manager/Vault/SPIFFE/离线 CA adapter 与模板、ingress reload controller、生产 RBAC、证书到期告警和 `ql3w` credential recovery 产品面；具体 KMS/Vault Secret provider、对象存储 credential/temporary lifecycle 与 retention/tombstone；Worker 管理 API；真实 Kubernetes 多节点 CSI/node-loss/production 360 秒 drain 与固定 edge 文件系统 suspend/时钟/断电、x64/arm64 资源门禁 |
 | PR-8 Project/Policy/Approval Core | Incubating（默认拒绝、无生产业务执行入口） | ADR-0028；统一六类 ActorRef 与 exact-shape 校验；`0017` ownerless default Project 和 append-only versioned RoleBinding；owner/admin/operator/viewer 固定矩阵；Project 内 mutation 幂等、expected-version CAS、双 SQLite 连接竞争门禁；archived read-only、revocation、存储损坏 fail-closed；Agent 写/Secret/Tool `require_approval`；ADR-0047 把六类 subject、role/permission matrix 与 fence 抽到 runtime-core，`pg-0004-project-policy`/capability v3 建立 ownerless PostgreSQL baseline、严格 role/state CHECK、append-only runtime 权限、SERIALIZABLE Project lock、mutation replay、双连接单 winner 和 cluster admission authorizer；ADR-0049/`pg-0005` capability v4 建立 stable IdentitySubject、append-only digest-only API credential、真实 cluster bearer authenticator、write-only durable security audit 与最小权限 runtime role，且已验证 HTTP→credential→Policy→audit→handler 纵向链路；ADR-0051 建立 `/api/v3` 认证前 peer/global 双预算、transport-peer-only、无 timer 且有界内存的 overload shield；ADR-0027 Artifact authorizer adapter；ADR-0029 `AuthenticatedPrincipal` contract、`0018` digest-only versioned challenge、CSPRNG/TTL、同事务消费 challenge + 写首 owner、精确重放与双连接竞争/崩溃回滚门禁；ADR-0030 `0019` stable identity/binding、legacy HS384 + current-session membership、logout/platform/revoke/disable、single-factor 与损坏 fail-closed 门禁；ADR-0031 `0020` digest-bound ApprovalRequest、User-only decision、Project/Role version fence、精确 expiry/重放/并发裁决及同事务 immutable dispatch；ADR-0032 `0021` execution backfill、三表原子 consume、稳定 due keyset、claim/renew/start/result fencing、pre-start takeover/post-start recovery-required、attempt budget、handler inspect/digest barrier 和 bounded dispatcher；ADR-0033/`0022` control/resolution backfill、start/renew/completion 原子联动、稳定 recovery keyset、双 resolver claim/takeover、finding/result 精确重放、自动/人工终结、迟到 completion 单 winner 和 evidence-only bounded reconciler；ADR-0034/`0023` 首个 `run.create` canonical plan、Run/Attempt/Event/receipt 同事务、幂等 collision fail-closed、renew/终态 fence、真实 SQLite handler 与 automatic evidence provider；ADR-0035/`0024` 独立 `approval.recover` 矩阵、稳定 User + 五分钟强认证、Project/RoleBinding fence、human resolution + authorization fact 原子提交、撤权竞态与回滚门禁；ADR-0036 recovery-first 单 timer lifecycle、edge/standalone 独立 cadence/页预算、跨周期 cursor、非重叠与有界 stop；ADR-0074 以新的 Node 24 SQLite v5 ownerless Project/RoleBinding/audit authority 和独立 local-secret-admin 提供强 Principal、`secret.manage`、撤权 fence、envelope+allowed audit 原子提交及不回显语义；ADR-0086 以可信 POSIX console 和 staged delivery 完成本机首 Owner 产品 ceremony | fresh database/pepper setup 与安全迁移向导；`shareStore`/Express 到 authentication core 的 production migration；credential rotation/revocation API、mTLS/Worker enrollment、恢复码；Project/Role/Approval/Secret 管理 CLI/API/UI、audit retention/query/export/alert、preview Artifact/digest/immutable plan builder、真实 MFA/hardware adapter、人工 recovery API/UI/独立 rate limit 与审计事件、handler/provider registry、lifecycle startup/shutdown/指标/admission gate；PostgreSQL action/receipt/provider/recovery-authorization 与 OPA adapter、缓存 version 失效；Tool/Package/Secret/Shell 各自的 handler/evidence contract；Secret/Run/Tool/Workflow waiting_approval 全入口装配；完整回滚演练 |
 
diff --git a/docs/adr/ADR-0005-durable-cancellation-dispatch.md b/docs/adr/ADR-0005-durable-cancellation-dispatch.md
index 4657a54e..fffe0f4f 100644
--- a/docs/adr/ADR-0005-durable-cancellation-dispatch.md
+++ b/docs/adr/ADR-0005-durable-cancellation-dispatch.md
@@ -1,6 +1,6 @@
 # ADR-0005：Durable Cancellation Dispatch、Lease 与 Fencing
 
-- 状态：Proposed
+- 状态：Accepted（Local 与 PostgreSQL Repository 已实现；Cluster 生产启动拓扑待接入）
 - 日期：2026-07-18
 - 决策范围：跨进程取消派发、崩溃恢复、并发 Worker、退避和审计事件
 - 关联：QL-RFC-0001、ADR-0001、ADR-0003、ADR-0004
@@ -30,7 +30,7 @@ version                 non-negative integer
 dispatch_count          non-negative integer
 next_attempt_at_ms      nullable
 lease_owner             nullable
-lease_token             nullable
+lease_token_digest      nullable
 lease_expires_at_ms     nullable
 last_result             nullable
 last_dispatched_at_ms   nullable
@@ -49,9 +49,9 @@ Worker 对唯一 active Attempt 执行原子 claim：
 3. 不存在 dispatch 时创建 `pending`，绑定该 Attempt。
 4. 既有记录绑定其他 Attempt 时 fail closed，不重新绑定或选择“最新 PID”。
 5. `dispatched`、`blocked` 不再 claim；未到 `next_attempt_at_ms` 返回 not-due；未过期 lease 返回 leased。
-6. 到期或可派发时，以 version CAS 更新为 leased，递增 version 和 dispatch_count，写入新的 owner、不可预测 token 和 expiry。
+6. 到期或可派发时，以 version CAS 更新为 leased，递增 version 和 dispatch_count，写入新的 owner、domain-separated SHA-256 token digest 和 expiry；原始 token 只随成功 claim 返回给当前调用者，不进入 durable record。
 
-SQLite adapter 使用短 `IMMEDIATE` 事务串行化写竞争。PostgreSQL adapter 必须提供等价的行锁或条件更新语义；实现方式可以不同，行为契约不得改变。
+Repository 是租约、到期与退避的时间 authority。调用方只提交已有 `cancel_requested_at_ms` 事实、lease duration 或 retry delay，不得提交“当前时间”、lease expiry 或绝对 retry timestamp。SQLite adapter 使用注入 clock 与短 `IMMEDIATE` 事务串行化写竞争；PostgreSQL adapter 使用 `transaction_timestamp()`，按 Run→Attempt→CancellationDispatch 顺序取行锁。实现方式可以不同，行为契约不得改变。
 
 ### 2.3 发出副作用
 
@@ -67,7 +67,7 @@ SQLite adapter 使用短 `IMMEDIATE` 事务串行化写竞争。PostgreSQL adapt
 
 ### 2.4 Result 事务与 fencing
 
-结果提交必须同时匹配 run ID、attempt ID、lease owner、lease token 和 expected dispatch version。任何一项过期都拒绝写入。
+结果提交必须同时匹配 run ID、attempt ID、lease owner、原始 lease token 的 digest 和 expected dispatch version。任何一项过期都拒绝写入。
 
 同一事务中：
 
@@ -99,7 +99,7 @@ lease 到期后其他 Worker 可以重新 claim。重试仍必须执行完整身
 
 ### 2.6 退避与 Supervisor
 
-首版退避为 `min(max, base * 2^(dispatch_count-1))`，指数有上限。Repository 持久化绝对 `next_attempt_at_ms`，进程重启不会清空退避。
+首版退避为 `min(max, base * 2^(dispatch_count-1))`，指数有上限。调用方只提交有硬上限的 `retryDelayMs`，Repository 依据自身时间计算并持久化绝对 `next_attempt_at_ms`，进程重启不会清空退避。
 
 Supervisor 一次只执行有界 cycle：
 
@@ -151,15 +151,14 @@ PID 可复用，可能终止无关进程，禁止。
 
 ## 5. 当前孵化边界
 
-`next` 已实现 `0005-run-cancellation-dispatch`、Repository 端口、临时 Sequelize/SQLite adapter、lease expiry 接管、fencing、退避、结果事件、Dispatcher、有界 Supervisor 和默认惰性的 lifecycle runner，并覆盖双 Worker、崩溃接管、事务回滚、无重叠调度和有界 shutdown 测试。
+`next` 已实现 profile-neutral canonical contract、`0005-run-cancellation-dispatch`、legacy Sequelize/SQLite adapter、PostgreSQL `pg-0066-cancellation-dispatch`/capability v65 adapter、lease expiry 接管、fencing、退避、结果事件、Dispatcher、有界 Supervisor 和默认惰性的 lifecycle runner。PostgreSQL 结果事务按 Run→Attempt→dispatch 锁序完成 dispatch 更新、Run version CAS 与 RunEvent 追加；runtime 角色只取得新表的 SELECT/INSERT/UPDATE。
 
-HTTP worker 已通过默认关闭的 manual-only manifest bootstrap 接入该 Supervisor：只有 accepted 且全部 gate 通过时才启动，失败或 shutdown 时有界停止。以下工作仍未完成，因此它仍只允许显式 canary，不得扩大到默认生产流量：
+HTTP worker 已通过默认关闭的 manual-only manifest bootstrap 接入 Local Supervisor：只有 accepted 且全部 gate 通过时才启动，失败或 shutdown 时有界停止。以下工作仍未完成，因此它仍只允许显式 canary，不得扩大到默认生产流量：
 
-- PostgreSQL adapter 与真实多连接并发压力测试。
-- ADR-0007 的 completion receipt、direct-file log、CompletionService 与周期 completion supervisor（timeout lifecycle 已接入）。
 - 用户可见的运行指标、blocked 诊断和处置入口。
 - 固定 edge 设备的数据库写放大、RSS、时延和磁盘基准。
-- 与 rollout manifest、回滚 runbook 和运维告警的最终接线。
+- cluster-control 对 PostgreSQL CancellationDispatch 的生产启动/停止拓扑与运维告警接线。
+- 首次真实目标实例完整激活/回滚仪式与共享 config 多写者 authority。
 
 ## 6. 验证门禁
 
@@ -173,3 +172,5 @@ HTTP worker 已通过默认关闭的 manual-only manifest bootstrap 接入该 Su
 8. identity/PID/process-group 不一致时零 signal。
 9. page、cycle 和退避均有硬上限。
 10. Event 与日志不包含 handle、命令、环境和 Secret。
+11. PostgreSQL 双连接只能产生一个 claim winner，raw token 不落库，数据库时间决定 lease/retry 到期。
+12. v65 事实经 WAL 到达 standby，提升为新 Primary 后仍可读取；旧 owner/token/version 继续被 fencing。
diff --git a/docs/adr/ADR-0456-database-timed-postgresql-cancellation-dispatch.md b/docs/adr/ADR-0456-database-timed-postgresql-cancellation-dispatch.md
new file mode 100644
index 00000000..d801526c
--- /dev/null
+++ b/docs/adr/ADR-0456-database-timed-postgresql-cancellation-dispatch.md
@@ -0,0 +1,64 @@
+# ADR-0456：数据库计时的 PostgreSQL CancellationDispatch
+
+- 状态：Accepted
+- 日期：2026-08-19
+- 关联 RFC：QL-RFC-0001 D-363、PR-5
+- 关联 ADR：ADR-0001、ADR-0005、ADR-0041、ADR-0384
+- Amends：ADR-0005 的 PostgreSQL adapter、时间 authority 与 token 持久化边界
+
+## 上下文
+
+ADR-0005 已在 Local Profile 建立 durable cancellation dispatch，但 Cluster Profile 不能直接复用 SQLite 的单写者事务或进程时钟。多个 cluster-control 副本可能同时扫描同一 Run；节点时钟漂移会让租约提前接管或永久延后；把 raw lease token 持久化又会扩大数据库快照、备份与只读诊断面的能力泄漏。
+
+QingLong 3.0 还必须同时服务低配路由和集群节点。公共协议需要同构，部署依赖与运行 authority 必须按 Profile 隔离：Edge 不应因 Cluster 能力引入 `pg`、连接池或常驻协调器，Cluster 也不能用进程内锁冒充多副本共识。
+
+## 决策
+
+1. `CancellationDispatch` 的 canonical contract 位于 `@qinglong/runtime-core/cancellation-dispatch` 显式子路径，不从 runtime-core 根入口导出。它定义 exact-shape command/record/result、硬上限、状态不变量、结果分类和 domain-separated SHA-256 token digest；不拥有数据库连接、timer、worker 或部署 Profile。
+2. claim command 只携带 Run/Attempt、已有的 `cancel_requested_at_ms`、owner、raw token 和有上限的 lease duration。result command只携带精确 fence、结果枚举、event ID，以及 retryable 结果所需的有上限 delay。调用方不得提交当前时间、lease expiry 或绝对 retry timestamp。
+3. PostgreSQL Repository 在事务中以 `transaction_timestamp()` 取得唯一时间事实。lease expiry、`updated_at_ms`、`last_dispatched_at_ms` 和 retry due time均由数据库时间计算；Local adapter 保持注入/default clock，以便低成本确定性测试和单设备运行。
+4. raw lease token 仅在成功 claim 的返回值中出现。durable record 与 PostgreSQL 表只保存 `sha256("qinglong.cancellation-dispatch-lease.v1\\0" || token)`；后续 result 在事务内重新计算 digest 比对。read/list、WAL、备份和诊断面不得恢复该 capability。
+5. `pg-0066-cancellation-dispatch` 把 PostgreSQL capability 提升到 v65，创建 `ql3.run_cancellation_dispatches`。主键为 Run ID，Attempt 通过 `(attempt_id, run_id)` 复合外键固定绑定同一 Run；CHECK 约束状态、counter、lease/retry/terminal shape，索引只支持 bounded due 与 expired-lease recovery。
+6. runtime role 对新表只有 SELECT、INSERT、UPDATE，没有 DELETE、TRUNCATE、REFERENCES、TRIGGER 或 schema create；migration owner 继续独占 DDL。readiness、Drizzle schema、reviewed SQL、migration checksum 与 catalog privilege 行必须保持锁步。
+7. claim 的锁序固定为 Run→Attempt→CancellationDispatch。先验证 runtime-owned active Run、精确 cancel timestamp 与同 Run active Attempt，再创建或锁定 dispatch；跨 Attempt 重绑定失败关闭。正常 lease 未过期、不 due、terminal 和 blocked 都不会产生新 owner。
+8. recordResult 使用同一锁序并精确验证 run/attempt/owner/token digest/expected version。在一个事务中更新 dispatch、对 Run version 做 CAS、分配 event sequence 并追加低敏 RunEvent；任一步失败全部回滚。stale fence 不能覆盖新 owner。
+9. PostgreSQL adapter 只通过 `@qinglong/cluster-postgres/cancellation-dispatch` 和受审 runtime entrypoint 发布，不从 package 根入口扩张。它不自动创建连接池、扫描器、timer、listener 或 cluster-control 进程；生产启动/停止拓扑是后续独立决策。
+10. Local legacy 表暂时保留既有列名与迁移兼容性，由 adapter 在 canonical record 边界投影 digest。D-363 不把这一点表述为 Local 数据库存量已经完成 raw-token 迁移；若要修改既有 SQLite durable layout，必须单独设计兼容迁移和回滚门。
+
+## 被拒绝的替代方案
+
+### 使用 cluster-control 进程时钟
+
+拒绝。多副本时钟漂移会破坏 lease 与 retry 的单一到期语义，主库提升后也无法证明旧节点计算的绝对时间仍可信。
+
+### 在表中保存 raw lease token
+
+拒绝。token 是一次短期写能力，不是诊断事实。持久化 raw capability 会让只读快照、复制链和备份获得不必要的可重放材料。
+
+### 只用唯一索引或进程锁去重
+
+拒绝。它们不能同时表达过期接管、owner fencing、结果原子事件与多副本崩溃恢复。
+
+### 把 adapter 从包根入口导出并自动启动
+
+拒绝。根入口扩张会污染轻量依赖闭包，自动启动会在未决的生产拓扑之前引入常驻扫描与连接 authority。
+
+## 资源、安全与部署影响
+
+- Edge/Standalone 基础产物不新增 `pg` 或 cluster package；最小 Edge artifact 仍约 2.59 MiB。
+- Cluster 新增一张当前状态表、两个恢复索引和短事务；无新 workspace package、生产依赖、Kubernetes 对象、端口、timer 或常驻进程。
+- raw lease token 不进入 canonical record、PostgreSQL row、WAL 或事件；事件仍只含 Attempt、dispatch count 与固定结果枚举。
+- 行锁顺序与 5 秒 statement timeout、1 秒 lock timeout、10 秒 idle-in-transaction timeout 共同限制锁等待；这不是无限并发压力证明，生产指标与容量门仍需完成。
+
+## 验证
+
+- runtime-core 契约 `5/5`，PostgreSQL schema/migration/readiness 聚焦 `75/75`；v65 checksum、CHECK/FK/index 与最小权限通过。
+- 完整 backend：`1,487 pass / 0 fail / 2 conditional skip`；18-package 最新 clean/build 退出 0，随后 18-package 顺序测试单次退出 0。
+- package boundary、Edge import、cluster dependency、cluster deployment、service-manager bridge 审计均零 finding；workspace package 精确为 18，新增实现位于明确子域而非 `src` 根平铺。
+- `14/14` Local Profile artifact audit 通过；基础 Edge/Standalone 为 `2,589,998 / 2,590,076` bytes，没有 PostgreSQL 依赖泄漏。
+- PostgreSQL 18.6 arm64 HA 门 `144/144`：双连接单 claim、数据库时钟、digest-only durable token、expired takeover、stale fence、retry due、事务回滚、WAL standby 可见和 promotion 后读取均通过；timeline `1→2`，报告 SHA-256 为 `b168b25023f7aad623153d22e41cccfe5f511a6985dc75c9e9e20073f980d5cb`。
+- HA 临时 Docker 容器在门结束后全部清理。该证据不冒充 CloudNativePG、多节点网络分区或生产容量证明。
+
+## 后续
+
+下一阶段把 PostgreSQL CancellationDispatch Repository 接入 cluster-control 的明确生产 composition、单一 cadence、availability withdrawal、shutdown drain、指标与 blocked 处置面；随后补 CloudNativePG live failover、多副本压力、固定 x64/arm64 资源门。Local 侧如需消除 legacy raw-token 存量，另开兼容迁移 ADR，不与 Cluster rollout 混合。
diff --git a/packages/ql3-cluster-control/test/application.test.cjs b/packages/ql3-cluster-control/test/application.test.cjs
index 6d39eac6..a953cbc9 100644
--- a/packages/ql3-cluster-control/test/application.test.cjs
+++ b/packages/ql3-cluster-control/test/application.test.cjs
@@ -219,6 +219,7 @@ function runtimePrivileges() {
     plugin_package_workflow_task_attempt_admissions: [true, true, false, false],
     worker_execution_attestations: [true, false, false, false],
     run_events: [true, true, false, false],
+    run_cancellation_dispatches: [true, true, true, false],
     run_retry_policies: [true, true, true, false],
   };
   return Object.entries(privileges).map(
diff --git a/packages/ql3-cluster-control/test/bootstrap.test.cjs b/packages/ql3-cluster-control/test/bootstrap.test.cjs
index 71ba6a32..aa98d8ce 100644
--- a/packages/ql3-cluster-control/test/bootstrap.test.cjs
+++ b/packages/ql3-cluster-control/test/bootstrap.test.cjs
@@ -133,6 +133,7 @@ function runtimePrivileges() {
     plugin_package_workflow_task_attempt_admissions: [true, true, false, false],
     worker_execution_attestations: [true, false, false, false],
     run_events: [true, true, false, false],
+    run_cancellation_dispatches: [true, true, true, false],
     run_retry_policies: [true, true, true, false],
   };
   return Object.entries(privileges).map(
diff --git a/packages/ql3-cluster-postgres/package.json b/packages/ql3-cluster-postgres/package.json
index db98f27c..c4c06efe 100644
--- a/packages/ql3-cluster-postgres/package.json
+++ b/packages/ql3-cluster-postgres/package.json
@@ -85,6 +85,11 @@
       "require": "./dist/entrypoints/runManager.js",
       "default": "./dist/entrypoints/runManager.js"
     },
+    "./cancellation-dispatch": {
+      "types": "./dist/run/cancellationDispatchRepository.d.ts",
+      "require": "./dist/run/cancellationDispatchRepository.js",
+      "default": "./dist/run/cancellationDispatchRepository.js"
+    },
     "./approval-manager": {
       "types": "./dist/approval-management/index.d.ts",
       "require": "./dist/approval-management/index.js",
diff --git a/packages/ql3-cluster-postgres/src/entrypoints/runtime.ts b/packages/ql3-cluster-postgres/src/entrypoints/runtime.ts
index 0b6d158f..6fe6009a 100644
--- a/packages/ql3-cluster-postgres/src/entrypoints/runtime.ts
+++ b/packages/ql3-cluster-postgres/src/entrypoints/runtime.ts
@@ -54,6 +54,7 @@ export { PostgresToolResultKeyCatalogReader } from '../tool-execution/toolResult
 export { PostgresToolResultRekeyReader } from '../tool-execution/toolResultRekeyRepository';
 
 export * from '../run/runRepository';
+export * from '../run/cancellationDispatchRepository';
 export * from '../run/runAttemptLogRetentionClaimRepository';
 export * from '../security/projectPolicyRepository';
 export * from '../security/apiCredentialRepository';
diff --git a/packages/ql3-cluster-postgres/src/migration/migrationManifest.ts b/packages/ql3-cluster-postgres/src/migration/migrationManifest.ts
index 30295823..5613ddb8 100644
--- a/packages/ql3-cluster-postgres/src/migration/migrationManifest.ts
+++ b/packages/ql3-cluster-postgres/src/migration/migrationManifest.ts
@@ -333,5 +333,10 @@ export const postgresqlMainMigrationManifest: MigrationStreamManifest =
         checksum:
           '95387c5b40659490dbcb7626ecd15bacf6412360752bef88873bde57c43e0185',
       }),
+      Object.freeze({
+        id: 'pg-0066-cancellation-dispatch',
+        checksum:
+          'b6d7ac81b5f75530df05f8ef05878fa30aa0f4418363973ded89d14ffce151b2',
+      }),
     ]),
   });
diff --git a/packages/ql3-cluster-postgres/src/migrations/index.ts b/packages/ql3-cluster-postgres/src/migrations/index.ts
index 1de87840..c32a0d88 100644
--- a/packages/ql3-cluster-postgres/src/migrations/index.ts
+++ b/packages/ql3-cluster-postgres/src/migrations/index.ts
@@ -68,6 +68,7 @@ import { pg0062PluginPackageSecretBindingTargetGuardMigration } from './pg-0062-
 import { pg0063PluginPackageSecretBindingTransitionReceiptsMigration } from './pg-0063-plugin-package-secret-binding-transition-receipts';
 import { pg0064PluginPackageSecretBindingTransitionApprovalPlansMigration } from './pg-0064-plugin-package-secret-binding-transition-approval-plans';
 import { pg0065ApprovedActionManualRecoveryMigration } from '../approved-action/pg-0065-approved-action-manual-recovery';
+import { pg0066CancellationDispatchMigration } from '../run/migrations/pg-0066-cancellation-dispatch';
 
 export const postgresqlMainMigrationStream: MigrationStreamDefinition<PostgresMigrationContext> =
   Object.freeze({
@@ -141,5 +142,6 @@ export const postgresqlMainMigrationStream: MigrationStreamDefinition<PostgresMi
       pg0063PluginPackageSecretBindingTransitionReceiptsMigration,
       pg0064PluginPackageSecretBindingTransitionApprovalPlansMigration,
       pg0065ApprovedActionManualRecoveryMigration,
+      pg0066CancellationDispatchMigration,
     ]),
   });
diff --git a/packages/ql3-cluster-postgres/src/run/cancellationDispatchRepository.ts b/packages/ql3-cluster-postgres/src/run/cancellationDispatchRepository.ts
new file mode 100644
index 00000000..54180a61
--- /dev/null
+++ b/packages/ql3-cluster-postgres/src/run/cancellationDispatchRepository.ts
@@ -0,0 +1,452 @@
+import type { PostgresClient, PostgresPool } from '@qinglong/runtime-core';
+import {
+  CancellationDispatchBindingConflictError,
+  CancellationDispatchError,
+  CancellationDispatchFenceRejectedError,
+  CancellationDispatchRepositoryError,
+  cancellationDispatchResultState,
+  digestCancellationDispatchLeaseToken,
+  normalizeCancellationDispatchRecord,
+  normalizeCancellationDispatchRunId,
+  normalizeClaimCancellationDispatchCommand,
+  normalizeRecordCancellationDispatchResultCommand,
+  type CancellationDispatchRecord,
+  type CancellationDispatchRepository,
+  type ClaimCancellationDispatchCommand,
+  type ClaimCancellationDispatchResult,
+  type RecordCancellationDispatchResult,
+  type RecordCancellationDispatchResultCommand,
+} from '@qinglong/runtime-core/cancellation-dispatch';
+import type { RunEventRecord } from '@qinglong/runtime-core/run';
+
+type Row = Record<string, unknown>;
+
+const ACTIVE_RUN_STATUSES = new Set([
+  'created',
+  'queued',
+  'dispatching',
+  'running',
+  'waiting_approval',
+  'retry_wait',
+  'lost',
+]);
+const ACTIVE_ATTEMPT_STATUSES = new Set(['claimed', 'starting', 'running']);
+const CONTROLLER_NOT_INVOKED_RESULTS = new Set([
+  'controller_missing',
+  'handle_missing',
+]);
+
+function text(row: Row, key: string): string {
+  const value = row[key];
+  if (typeof value !== 'string' || value.length < 1) {
+    throw new TypeError(`PostgreSQL cancellation dispatch ${key} is invalid`);
+  }
+  return value;
+}
+
+function integer(row: Row, key: string): number {
+  const raw = row[key];
+  const value =
+    typeof raw === 'string' && /^(0|[1-9]\d*)$/u.test(raw)
+      ? Number(raw)
+      : raw;
+  if (typeof value !== 'number' || !Number.isSafeInteger(value) || value < 0) {
+    throw new TypeError(`PostgreSQL cancellation dispatch ${key} is invalid`);
+  }
+  return value;
+}
+
+function optionalText(row: Row, key: string): string | undefined {
+  return row[key] === null || row[key] === undefined
+    ? undefined
+    : text(row, key);
+}
+
+function optionalInteger(row: Row, key: string): number | undefined {
+  return row[key] === null || row[key] === undefined
+    ? undefined
+    : integer(row, key);
+}
+
+function dispatchFromRow(row: Row): Readonly<CancellationDispatchRecord> {
+  const nextAttemptAtMs = optionalInteger(row, 'nextAttemptAtMs');
+  const leaseOwner = optionalText(row, 'leaseOwner');
+  const leaseTokenDigest = optionalText(row, 'leaseTokenDigest');
+  const leaseExpiresAtMs = optionalInteger(row, 'leaseExpiresAtMs');
+  const lastResult = optionalText(row, 'lastResult');
+  const lastDispatchedAtMs = optionalInteger(row, 'lastDispatchedAtMs');
+  return normalizeCancellationDispatchRecord({
+    runId: text(row, 'runId'),
+    attemptId: text(row, 'attemptId'),
+    status: text(row, 'status') as CancellationDispatchRecord['status'],
+    version: integer(row, 'version'),
+    dispatchCount: integer(row, 'dispatchCount'),
+    ...(nextAttemptAtMs === undefined ? {} : { nextAttemptAtMs }),
+    ...(leaseOwner === undefined ? {} : { leaseOwner }),
+    ...(leaseTokenDigest === undefined ? {} : { leaseTokenDigest }),
+    ...(leaseExpiresAtMs === undefined ? {} : { leaseExpiresAtMs }),
+    ...(lastResult === undefined
+      ? {}
+      : {
+          lastResult:
+            lastResult as NonNullable<CancellationDispatchRecord['lastResult']>,
+        }),
+    ...(lastDispatchedAtMs === undefined ? {} : { lastDispatchedAtMs }),
+    createdAtMs: integer(row, 'createdAtMs'),
+    updatedAtMs: integer(row, 'updatedAtMs'),
+  });
+}
+
+const DISPATCH_COLUMNS = `
+  run_id AS "runId", attempt_id AS "attemptId", status,
+  version, dispatch_count AS "dispatchCount",
+  next_attempt_at_ms AS "nextAttemptAtMs", lease_owner AS "leaseOwner",
+  lease_token_digest AS "leaseTokenDigest",
+  lease_expires_at_ms AS "leaseExpiresAtMs", last_result AS "lastResult",
+  last_dispatched_at_ms AS "lastDispatchedAtMs",
+  created_at_ms AS "createdAtMs", updated_at_ms AS "updatedAtMs"
+`;
+
+async function begin(client: PostgresClient): Promise<void> {
+  await client.query('BEGIN');
+  await client.query(`SELECT set_config('statement_timeout', $1, true)`, [
+    '5000ms',
+  ]);
+  await client.query(`SELECT set_config('lock_timeout', $1, true)`, ['1000ms']);
+  await client.query(
+    `SELECT set_config('idle_in_transaction_session_timeout', $1, true)`,
+    ['10000ms'],
+  );
+}
+
+async function databaseNow(client: PostgresClient): Promise<number> {
+  const result = await client.query<Row>(`
+    SELECT floor(extract(epoch FROM transaction_timestamp()) * 1000)::bigint
+      AS "nowMs"
+  `);
+  if (result.rows.length !== 1) {
+    throw new TypeError('PostgreSQL cancellation dispatch clock is invalid');
+  }
+  return integer(result.rows[0]!, 'nowMs');
+}
+
+async function rollback(client: PostgresClient): Promise<void> {
+  try {
+    await client.query('ROLLBACK');
+  } catch {
+    // Preserve the transaction failure.
+  }
+}
+
+function repositoryFailure(error: unknown): never {
+  if (error instanceof CancellationDispatchError) throw error;
+  throw new CancellationDispatchRepositoryError(error);
+}
+
+export class PostgresCancellationDispatchRepository
+  implements CancellationDispatchRepository
+{
+  constructor(private readonly pool: PostgresPool) {
+    if (!pool || typeof pool.connect !== 'function') {
+      throw new TypeError('PostgreSQL cancellation dispatch pool is invalid');
+    }
+  }
+
+  async findByRunId(
+    runId: string,
+  ): Promise<Readonly<CancellationDispatchRecord> | null> {
+    try {
+      const normalizedRunId = normalizeCancellationDispatchRunId(runId);
+      const result = await this.pool.query<Row>(
+        `SELECT ${DISPATCH_COLUMNS}
+           FROM "ql3"."run_cancellation_dispatches"
+          WHERE run_id = $1`,
+        [normalizedRunId],
+      );
+      if (result.rows.length === 0) return null;
+      if (result.rows.length !== 1) {
+        throw new TypeError('PostgreSQL cancellation dispatch is not unique');
+      }
+      return dispatchFromRow(result.rows[0]!);
+    } catch (error) {
+      return repositoryFailure(error);
+    }
+  }
+
+  async claim(
+    value: Readonly<ClaimCancellationDispatchCommand>,
+  ): Promise<ClaimCancellationDispatchResult> {
+    const command = normalizeClaimCancellationDispatchCommand(value);
+    return this.transaction(async (client) => {
+      const nowMs = await databaseNow(client);
+      const run = await client.query<Row>(
+        `SELECT execution_owner AS "executionOwner", status,
+                cancel_requested_at_ms AS "cancelRequestedAtMs"
+           FROM "ql3"."runs" WHERE id = $1 FOR UPDATE`,
+        [command.runId],
+      );
+      if (run.rows.length > 1) {
+        throw new TypeError('PostgreSQL cancellation dispatch Run is invalid');
+      }
+      const attempt = await client.query<Row>(
+        `SELECT run_id AS "runId", status
+           FROM "ql3"."run_attempts" WHERE id = $1 FOR UPDATE`,
+        [command.attemptId],
+      );
+      if (attempt.rows.length > 1) {
+        throw new TypeError(
+          'PostgreSQL cancellation dispatch Attempt is invalid',
+        );
+      }
+      const runRow = run.rows[0];
+      const attemptRow = attempt.rows[0];
+      if (
+        !runRow ||
+        !attemptRow ||
+        runRow.executionOwner !== 'runtime' ||
+        !ACTIVE_RUN_STATUSES.has(runRow.status as string) ||
+        optionalInteger(runRow, 'cancelRequestedAtMs') !==
+          command.requestedAtMs ||
+        attemptRow.runId !== command.runId ||
+        !ACTIVE_ATTEMPT_STATUSES.has(attemptRow.status as string)
+      ) {
+        return Object.freeze({ status: 'not_eligible' as const });
+      }
+
+      let dispatchResult = await client.query<Row>(
+        `SELECT ${DISPATCH_COLUMNS}
+           FROM "ql3"."run_cancellation_dispatches"
+          WHERE run_id = $1 FOR UPDATE`,
+        [command.runId],
+      );
+      if (dispatchResult.rows.length === 0) {
+        dispatchResult = await client.query<Row>(
+          `INSERT INTO "ql3"."run_cancellation_dispatches" (
+             run_id, attempt_id, status, version, dispatch_count,
+             next_attempt_at_ms, created_at_ms, updated_at_ms
+           ) VALUES ($1, $2, 'pending', 0, 0, $3, $4, $4)
+           RETURNING ${DISPATCH_COLUMNS}`,
+          [command.runId, command.attemptId, command.requestedAtMs, nowMs],
+        );
+      }
+      if (dispatchResult.rows.length !== 1) {
+        throw new TypeError('PostgreSQL cancellation dispatch is invalid');
+      }
+      const current = dispatchFromRow(dispatchResult.rows[0]!);
+      if (current.attemptId !== command.attemptId) {
+        throw new CancellationDispatchBindingConflictError(
+          command.runId,
+          command.attemptId,
+        );
+      }
+      if (current.status === 'dispatched' || current.status === 'blocked') {
+        return Object.freeze({ status: current.status, dispatch: current });
+      }
+      if (
+        current.status === 'leased' &&
+        current.leaseExpiresAtMs! > nowMs
+      ) {
+        return Object.freeze({ status: 'leased' as const, dispatch: current });
+      }
+      if (
+        current.status !== 'leased' &&
+        current.nextAttemptAtMs! > nowMs
+      ) {
+        return Object.freeze({ status: 'not_due' as const, dispatch: current });
+      }
+      if (
+        current.version >= 2_147_483_647 ||
+        current.dispatchCount >= 2_147_483_647
+      ) {
+        throw new TypeError('PostgreSQL cancellation dispatch counter overflowed');
+      }
+      const leaseExpiresAtMs = nowMs + command.leaseDurationMs;
+      if (!Number.isSafeInteger(leaseExpiresAtMs)) {
+        throw new TypeError('PostgreSQL cancellation dispatch lease overflowed');
+      }
+      const leaseTokenDigest = digestCancellationDispatchLeaseToken(
+        command.leaseToken,
+      );
+      const claimed = await client.query<Row>(
+        `UPDATE "ql3"."run_cancellation_dispatches"
+            SET status = 'leased', version = version + 1,
+                dispatch_count = dispatch_count + 1,
+                next_attempt_at_ms = NULL, lease_owner = $3,
+                lease_token_digest = $4, lease_expires_at_ms = $5,
+                updated_at_ms = $6
+          WHERE run_id = $1 AND attempt_id = $2 AND version = $7
+          RETURNING ${DISPATCH_COLUMNS}`,
+        [
+          command.runId,
+          command.attemptId,
+          command.owner,
+          leaseTokenDigest,
+          leaseExpiresAtMs,
+          nowMs,
+          current.version,
+        ],
+      );
+      if (claimed.rows.length !== 1) {
+        throw new CancellationDispatchFenceRejectedError(command.runId);
+      }
+      return Object.freeze({
+        status: 'claimed' as const,
+        dispatch: dispatchFromRow(claimed.rows[0]!),
+        leaseToken: command.leaseToken,
+      });
+    });
+  }
+
+  async recordResult(
+    value: Readonly<RecordCancellationDispatchResultCommand>,
+  ): Promise<Readonly<RecordCancellationDispatchResult>> {
+    const command = normalizeRecordCancellationDispatchResultCommand(value);
+    return this.transaction(async (client) => {
+      const atMs = await databaseNow(client);
+      const run = await client.query<Row>(
+        `SELECT version, event_sequence AS "eventSequence"
+           FROM "ql3"."runs" WHERE id = $1 FOR UPDATE`,
+        [command.runId],
+      );
+      if (run.rows.length !== 1) {
+        throw new TypeError(
+          'PostgreSQL cancellation dispatch Run disappeared',
+        );
+      }
+      const dispatchResult = await client.query<Row>(
+        `SELECT ${DISPATCH_COLUMNS}
+           FROM "ql3"."run_cancellation_dispatches"
+          WHERE run_id = $1 FOR UPDATE`,
+        [command.runId],
+      );
+      if (dispatchResult.rows.length !== 1) {
+        throw new CancellationDispatchFenceRejectedError(command.runId);
+      }
+      const current = dispatchFromRow(dispatchResult.rows[0]!);
+      if (
+        current.attemptId !== command.attemptId ||
+        current.status !== 'leased' ||
+        current.version !== command.expectedVersion ||
+        current.leaseOwner !== command.owner ||
+        current.leaseTokenDigest !==
+          digestCancellationDispatchLeaseToken(command.leaseToken)
+      ) {
+        throw new CancellationDispatchFenceRejectedError(command.runId);
+      }
+      const runVersion = integer(run.rows[0]!, 'version');
+      const eventSequence = integer(run.rows[0]!, 'eventSequence');
+      if (
+        current.version >= 2_147_483_647 ||
+        runVersion >= 2_147_483_647 ||
+        eventSequence >= 2_147_483_647
+      ) {
+        throw new TypeError('PostgreSQL cancellation dispatch counter overflowed');
+      }
+      const nextAttemptAtMs =
+        command.retryDelayMs === undefined
+          ? undefined
+          : atMs + command.retryDelayMs;
+      if (
+        nextAttemptAtMs !== undefined &&
+        !Number.isSafeInteger(nextAttemptAtMs)
+      ) {
+        throw new TypeError('PostgreSQL cancellation dispatch retry overflowed');
+      }
+      const state = cancellationDispatchResultState(command.result);
+      const nextSequence = eventSequence + 1;
+      const runUpdated = await client.query(
+        `UPDATE "ql3"."runs"
+            SET version = version + 1, event_sequence = $2
+          WHERE id = $1 AND version = $3`,
+        [command.runId, nextSequence, runVersion],
+      );
+      if (runUpdated.rowCount !== 1) {
+        throw new CancellationDispatchFenceRejectedError(command.runId);
+      }
+      const dispatchUpdated = await client.query<Row>(
+        `UPDATE "ql3"."run_cancellation_dispatches"
+            SET status = $6, version = version + 1,
+                next_attempt_at_ms = $7, lease_owner = NULL,
+                lease_token_digest = NULL, lease_expires_at_ms = NULL,
+                last_result = $8,
+                last_dispatched_at_ms = CASE
+                  WHEN $9::boolean THEN last_dispatched_at_ms ELSE $10 END,
+                updated_at_ms = $10
+          WHERE run_id = $1 AND attempt_id = $2 AND status = 'leased'
+            AND version = $3 AND lease_owner = $4
+            AND lease_token_digest = $5
+          RETURNING ${DISPATCH_COLUMNS}`,
+        [
+          command.runId,
+          command.attemptId,
+          command.expectedVersion,
+          command.owner,
+          current.leaseTokenDigest,
+          state.status,
+          nextAttemptAtMs ?? null,
+          command.result,
+          CONTROLLER_NOT_INVOKED_RESULTS.has(command.result),
+          atMs,
+        ],
+      );
+      if (dispatchUpdated.rows.length !== 1) {
+        throw new CancellationDispatchFenceRejectedError(command.runId);
+      }
+      const event: Readonly<RunEventRecord> = Object.freeze({
+        id: command.eventId,
+        runId: command.runId,
+        sequence: nextSequence,
+        type: state.eventType,
+        dedupeKey: `cancel-dispatch:${command.attemptId}:${current.dispatchCount}`,
+        actorType: 'worker',
+        actorId: command.owner,
+        attemptId: command.attemptId,
+        payload: Object.freeze({
+          attempt_id: command.attemptId,
+          dispatch_count: current.dispatchCount,
+          result: command.result,
+        }),
+        createdAtMs: atMs,
+      });
+      await client.query(
+        `INSERT INTO "ql3"."run_events" (
+           id, run_id, sequence, type, dedupe_key, actor_type, actor_id,
+           attempt_id, step_run_id, payload, created_at_ms
+         ) VALUES ($1, $2, $3, $4, $5, 'worker', $6, $7, NULL, $8::jsonb, $9)`,
+        [
+          event.id,
+          event.runId,
+          event.sequence,
+          event.type,
+          event.dedupeKey,
+          event.actorId,
+          event.attemptId,
+          JSON.stringify(event.payload),
+          event.createdAtMs,
+        ],
+      );
+      return Object.freeze({
+        dispatch: dispatchFromRow(dispatchUpdated.rows[0]!),
+        event,
+      });
+    });
+  }
+
+  private async transaction<T>(
+    operation: (client: PostgresClient) => Promise<T>,
+  ): Promise<T> {
+    let client: PostgresClient | undefined;
+    try {
+      client = await this.pool.connect();
+      await begin(client);
+      const result = await operation(client);
+      await client.query('COMMIT');
+      return result;
+    } catch (error) {
+      if (client) await rollback(client);
+      return repositoryFailure(error);
+    } finally {
+      client?.release();
+    }
+  }
+}
diff --git a/packages/ql3-cluster-postgres/src/run/migrations/pg-0066-cancellation-dispatch.ts b/packages/ql3-cluster-postgres/src/run/migrations/pg-0066-cancellation-dispatch.ts
new file mode 100644
index 00000000..91840113
--- /dev/null
+++ b/packages/ql3-cluster-postgres/src/run/migrations/pg-0066-cancellation-dispatch.ts
@@ -0,0 +1,99 @@
+import { CAPABILITIES_V64 } from '../../approved-action/pg-0065-approved-action-manual-recovery';
+import { definePostgresSqlMigration } from '../../migrations/sqlMigration';
+
+export const POSTGRESQL_CANCELLATION_DISPATCH_TABLE =
+  'run_cancellation_dispatches';
+
+export const CAPABILITIES_V65 = CAPABILITIES_V64.replace(
+  '"run_core":1,',
+  '"run_cancellation_dispatch":1,"run_core":1,',
+);
+
+export const pg0066CancellationDispatchMigration =
+  definePostgresSqlMigration({
+    id: 'pg-0066-cancellation-dispatch',
+    statements: [
+      `CREATE UNIQUE INDEX ql3_run_attempts_run_id_uidx ON "ql3"."run_attempts" (run_id, id)`,
+      `
+CREATE TABLE "ql3"."${POSTGRESQL_CANCELLATION_DISPATCH_TABLE}" (
+  run_id varchar(36) PRIMARY KEY,
+  attempt_id varchar(36) NOT NULL,
+  status varchar(32) NOT NULL,
+  version integer NOT NULL,
+  dispatch_count integer NOT NULL,
+  next_attempt_at_ms bigint,
+  lease_owner varchar(128),
+  lease_token_digest char(64),
+  lease_expires_at_ms bigint,
+  last_result varchar(32),
+  last_dispatched_at_ms bigint,
+  created_at_ms bigint NOT NULL,
+  updated_at_ms bigint NOT NULL,
+  CONSTRAINT ql3_run_cancellation_dispatch_run_fk
+    FOREIGN KEY (run_id) REFERENCES "ql3"."runs" (id)
+    ON DELETE CASCADE ON UPDATE RESTRICT,
+  CONSTRAINT ql3_run_cancellation_dispatch_attempt_fk
+    FOREIGN KEY (run_id, attempt_id)
+    REFERENCES "ql3"."run_attempts" (run_id, id)
+    ON DELETE CASCADE ON UPDATE RESTRICT,
+  CONSTRAINT ql3_run_cancellation_dispatch_status_check CHECK (
+    status IN ('pending', 'leased', 'retry_wait', 'dispatched', 'blocked')
+  ),
+  CONSTRAINT ql3_run_cancellation_dispatch_result_check CHECK (
+    last_result IS NULL OR last_result IN (
+      'termination_requested', 'already_exited', 'identity_mismatch',
+      'pid_mismatch', 'unsupported', 'invalid', 'controller_missing',
+      'handle_missing', 'dispatch_error'
+    )
+  ),
+  CONSTRAINT ql3_run_cancellation_dispatch_counter_check CHECK (
+    version BETWEEN 0 AND 2147483647 AND
+    dispatch_count BETWEEN 0 AND 2147483647 AND
+    version >= dispatch_count AND
+    ((status = 'pending' AND version = 0 AND dispatch_count = 0) OR
+     (status <> 'pending' AND dispatch_count >= 1))
+  ),
+  CONSTRAINT ql3_run_cancellation_dispatch_time_check CHECK (
+    (next_attempt_at_ms IS NULL OR next_attempt_at_ms >= 0) AND
+    (lease_expires_at_ms IS NULL OR lease_expires_at_ms >= 0) AND
+    (last_dispatched_at_ms IS NULL OR last_dispatched_at_ms >= 0) AND
+    created_at_ms >= 0 AND updated_at_ms >= created_at_ms
+  ),
+  CONSTRAINT ql3_run_cancellation_dispatch_lease_digest_check CHECK (
+    lease_token_digest IS NULL OR lease_token_digest ~ '^[0-9a-f]{64}$'
+  ),
+  CONSTRAINT ql3_run_cancellation_dispatch_shape_check CHECK (
+    (status = 'leased' AND next_attempt_at_ms IS NULL AND
+      lease_owner IS NOT NULL AND
+      octet_length(lease_owner) BETWEEN 1 AND 128 AND
+      lease_owner !~ '[[:cntrl:]]' AND
+      lease_token_digest IS NOT NULL AND lease_expires_at_ms IS NOT NULL) OR
+    (status IN ('pending', 'retry_wait') AND next_attempt_at_ms IS NOT NULL AND
+      lease_owner IS NULL AND lease_token_digest IS NULL AND
+      lease_expires_at_ms IS NULL) OR
+    (status IN ('dispatched', 'blocked') AND next_attempt_at_ms IS NULL AND
+      lease_owner IS NULL AND lease_token_digest IS NULL AND
+      lease_expires_at_ms IS NULL AND last_result IS NOT NULL)
+  ),
+  CONSTRAINT ql3_run_cancellation_dispatch_result_state_check CHECK (
+    (status = 'pending' AND last_result IS NULL) OR
+    (status IN ('leased', 'retry_wait') AND
+      (last_result IS NULL OR last_result IN (
+        'controller_missing', 'handle_missing', 'dispatch_error'
+      ))) OR
+    (status = 'dispatched' AND last_result IN (
+      'termination_requested', 'already_exited'
+    )) OR
+    (status = 'blocked' AND last_result IN (
+      'identity_mismatch', 'pid_mismatch', 'unsupported', 'invalid'
+    ))
+  )
+)
+      `.trim(),
+      `CREATE INDEX ql3_run_cancellation_dispatch_due_idx ON "ql3"."${POSTGRESQL_CANCELLATION_DISPATCH_TABLE}" (next_attempt_at_ms, run_id) WHERE status IN ('pending', 'retry_wait')`,
+      `CREATE INDEX ql3_run_cancellation_dispatch_lease_expiry_idx ON "ql3"."${POSTGRESQL_CANCELLATION_DISPATCH_TABLE}" (lease_expires_at_ms, run_id) WHERE status = 'leased'`,
+      `REVOKE ALL ON "ql3"."${POSTGRESQL_CANCELLATION_DISPATCH_TABLE}" FROM PUBLIC, ql3_runtime, ql3_admin, ql3_package_manager, ql3_package_executor, ql3_worker_ingress, ql3_worker_credential_manager, ql3_worker_credential_executor, ql3_automation_manager, ql3_approval_manager, ql3_run_manager`,
+      `GRANT SELECT, INSERT, UPDATE ON "ql3"."${POSTGRESQL_CANCELLATION_DISPATCH_TABLE}" TO ql3_runtime`,
+      `DO $ql3$ BEGIN UPDATE "ql3"."schema_capabilities" SET contract_version = 65, migration_id = 'pg-0066-cancellation-dispatch', capabilities = '${CAPABILITIES_V65}'::jsonb, updated_at_ms = floor(extract(epoch FROM transaction_timestamp()) * 1000)::bigint WHERE contract_name = 'control-core' AND contract_version = 64 AND migration_id = 'pg-0065-approved-action-manual-recovery' AND capabilities = '${CAPABILITIES_V64}'::jsonb; IF NOT FOUND THEN RAISE EXCEPTION 'control-core capability is not at version 64' USING ERRCODE = 'check_violation'; END IF; END $ql3$`,
+    ],
+  });
diff --git a/packages/ql3-cluster-postgres/src/schema/schema.ts b/packages/ql3-cluster-postgres/src/schema/schema.ts
index a376472d..dee52227 100644
--- a/packages/ql3-cluster-postgres/src/schema/schema.ts
+++ b/packages/ql3-cluster-postgres/src/schema/schema.ts
@@ -4810,6 +4810,7 @@ export const runAttempts = ql3Schema.table(
       table.runId,
       table.attempt,
     ),
+    uniqueIndex('ql3_run_attempts_run_id_uidx').on(table.runId, table.id),
     index('ql3_run_attempts_dispatch_candidates_idx').on(
       table.status,
       table.runId,
@@ -4830,6 +4831,75 @@ export const runAttempts = ql3Schema.table(
   ],
 );
 
+export const runCancellationDispatches = ql3Schema.table(
+  'run_cancellation_dispatches',
+  {
+    runId: varchar('run_id', { length: 36 }).primaryKey(),
+    attemptId: varchar('attempt_id', { length: 36 }).notNull(),
+    status: varchar('status', { length: 32 }).notNull(),
+    version: integer('version').notNull(),
+    dispatchCount: integer('dispatch_count').notNull(),
+    nextAttemptAtMs: bigint('next_attempt_at_ms', { mode: 'number' }),
+    leaseOwner: varchar('lease_owner', { length: 128 }),
+    leaseTokenDigest: char('lease_token_digest', { length: 64 }),
+    leaseExpiresAtMs: bigint('lease_expires_at_ms', { mode: 'number' }),
+    lastResult: varchar('last_result', { length: 32 }),
+    lastDispatchedAtMs: bigint('last_dispatched_at_ms', { mode: 'number' }),
+    createdAtMs: bigint('created_at_ms', { mode: 'number' }).notNull(),
+    updatedAtMs: bigint('updated_at_ms', { mode: 'number' }).notNull(),
+  },
+  (table) => [
+    foreignKey({
+      name: 'ql3_run_cancellation_dispatch_run_fk',
+      columns: [table.runId],
+      foreignColumns: [runs.id],
+    })
+      .onDelete('cascade')
+      .onUpdate('restrict'),
+    foreignKey({
+      name: 'ql3_run_cancellation_dispatch_attempt_fk',
+      columns: [table.runId, table.attemptId],
+      foreignColumns: [runAttempts.runId, runAttempts.id],
+    })
+      .onDelete('cascade')
+      .onUpdate('restrict'),
+    check(
+      'ql3_run_cancellation_dispatch_status_check',
+      sql`${table.status} in ('pending', 'leased', 'retry_wait', 'dispatched', 'blocked')`,
+    ),
+    check(
+      'ql3_run_cancellation_dispatch_result_check',
+      sql`${table.lastResult} is null or ${table.lastResult} in ('termination_requested', 'already_exited', 'identity_mismatch', 'pid_mismatch', 'unsupported', 'invalid', 'controller_missing', 'handle_missing', 'dispatch_error')`,
+    ),
+    check(
+      'ql3_run_cancellation_dispatch_counter_check',
+      sql`${table.version} between 0 and 2147483647 and ${table.dispatchCount} between 0 and 2147483647 and ${table.version} >= ${table.dispatchCount} and ((${table.status} = 'pending' and ${table.version} = 0 and ${table.dispatchCount} = 0) or (${table.status} <> 'pending' and ${table.dispatchCount} >= 1))`,
+    ),
+    check(
+      'ql3_run_cancellation_dispatch_time_check',
+      sql`(${table.nextAttemptAtMs} is null or ${table.nextAttemptAtMs} >= 0) and (${table.leaseExpiresAtMs} is null or ${table.leaseExpiresAtMs} >= 0) and (${table.lastDispatchedAtMs} is null or ${table.lastDispatchedAtMs} >= 0) and ${table.createdAtMs} >= 0 and ${table.updatedAtMs} >= ${table.createdAtMs}`,
+    ),
+    check(
+      'ql3_run_cancellation_dispatch_lease_digest_check',
+      sql`${table.leaseTokenDigest} is null or ${table.leaseTokenDigest} ~ '^[0-9a-f]{64}$'`,
+    ),
+    check(
+      'ql3_run_cancellation_dispatch_shape_check',
+      sql`(${table.status} = 'leased' and ${table.nextAttemptAtMs} is null and ${table.leaseOwner} is not null and octet_length(${table.leaseOwner}) between 1 and 128 and ${table.leaseOwner} !~ '[[:cntrl:]]' and ${table.leaseTokenDigest} is not null and ${table.leaseExpiresAtMs} is not null) or (${table.status} in ('pending', 'retry_wait') and ${table.nextAttemptAtMs} is not null and ${table.leaseOwner} is null and ${table.leaseTokenDigest} is null and ${table.leaseExpiresAtMs} is null) or (${table.status} in ('dispatched', 'blocked') and ${table.nextAttemptAtMs} is null and ${table.leaseOwner} is null and ${table.leaseTokenDigest} is null and ${table.leaseExpiresAtMs} is null and ${table.lastResult} is not null)`,
+    ),
+    check(
+      'ql3_run_cancellation_dispatch_result_state_check',
+      sql`(${table.status} = 'pending' and ${table.lastResult} is null) or (${table.status} in ('leased', 'retry_wait') and (${table.lastResult} is null or ${table.lastResult} in ('controller_missing', 'handle_missing', 'dispatch_error'))) or (${table.status} = 'dispatched' and ${table.lastResult} in ('termination_requested', 'already_exited')) or (${table.status} = 'blocked' and ${table.lastResult} in ('identity_mismatch', 'pid_mismatch', 'unsupported', 'invalid'))`,
+    ),
+    index('ql3_run_cancellation_dispatch_due_idx')
+      .on(table.nextAttemptAtMs, table.runId)
+      .where(sql`${table.status} in ('pending', 'retry_wait')`),
+    index('ql3_run_cancellation_dispatch_lease_expiry_idx')
+      .on(table.leaseExpiresAtMs, table.runId)
+      .where(sql`${table.status} = 'leased'`),
+  ],
+);
+
 export const runAttemptLogRetentionControls = ql3Schema.table(
   'run_attempt_log_retention_controls',
   {
@@ -6211,6 +6281,7 @@ export const ql3PostgresTables = [
   toolExecutionResultRekeyHeads,
   toolResultKeyRetirementReceipts,
   runAttempts,
+  runCancellationDispatches,
   runAttemptLogRetentionControls,
   runAttemptLogArtifactTombstones,
   workerSessions,
diff --git a/packages/ql3-cluster-postgres/src/schema/schemaContract.ts b/packages/ql3-cluster-postgres/src/schema/schemaContract.ts
index 248441c8..734594e2 100644
--- a/packages/ql3-cluster-postgres/src/schema/schemaContract.ts
+++ b/packages/ql3-cluster-postgres/src/schema/schemaContract.ts
@@ -21,12 +21,13 @@ export interface PostgresSchemaContractTrigger {
 export interface PostgresSchemaContract {
   readonly schema: 'ql3';
   readonly contractName: 'control-core';
-  readonly contractVersion: 64;
-  readonly migrationId: 'pg-0065-approved-action-manual-recovery';
+  readonly contractVersion: 65;
+  readonly migrationId: 'pg-0066-cancellation-dispatch';
   readonly minimumServerMajor: 16;
   readonly maximumServerMajor: 18;
   readonly capabilities: Readonly<{
     run_core: 1;
+    run_cancellation_dispatch: 1;
     run_attempt_log_retention: 1;
     run_management_boundary: 1;
     run_management_stop: 1;
@@ -118,8 +119,8 @@ export const postgresqlControlSchemaContract: PostgresSchemaContract =
   Object.freeze({
     schema: 'ql3',
     contractName: 'control-core',
-    contractVersion: 64,
-    migrationId: 'pg-0065-approved-action-manual-recovery',
+    contractVersion: 65,
+    migrationId: 'pg-0066-cancellation-dispatch',
     minimumServerMajor: 16,
     maximumServerMajor: 18,
     capabilities: Object.freeze({
@@ -167,6 +168,7 @@ export const postgresqlControlSchemaContract: PostgresSchemaContract =
       project_policy: 1,
       project_tool_definition_snapshot: 1,
       run_core: 1,
+      run_cancellation_dispatch: 1,
       run_attempt_log_retention: 1,
       run_management_boundary: 1,
       run_management_stop: 1,
@@ -1289,6 +1291,21 @@ export const postgresqlControlSchemaContract: PostgresSchemaContract =
         'error_code',
         'error_summary',
       ]),
+      table('run_cancellation_dispatches', [
+        'run_id',
+        'attempt_id',
+        'status',
+        'version',
+        'dispatch_count',
+        'next_attempt_at_ms',
+        'lease_owner',
+        'lease_token_digest',
+        'lease_expires_at_ms',
+        'last_result',
+        'last_dispatched_at_ms',
+        'created_at_ms',
+        'updated_at_ms',
+      ]),
       table('run_attempt_log_retention_controls', [
         'attempt_id',
         'project_id',
@@ -1770,9 +1787,13 @@ export const postgresqlControlSchemaContract: PostgresSchemaContract =
       'ql3_result_retirement_catalog_idx',
       'run_attempts_pkey',
       'ql3_run_attempts_run_attempt_uidx',
+      'ql3_run_attempts_run_id_uidx',
       'ql3_run_attempts_dispatch_candidates_idx',
       'ql3_run_attempts_recovery_idx',
       'ql3_run_attempts_lease_idx',
+      'run_cancellation_dispatches_pkey',
+      'ql3_run_cancellation_dispatch_due_idx',
+      'ql3_run_cancellation_dispatch_lease_expiry_idx',
       'run_attempt_log_retention_controls_pkey',
       'ql3_run_log_retention_control_artifact_key',
       'ql3_run_log_retention_retry_idx',
@@ -2106,6 +2127,13 @@ export const postgresqlControlSchemaContract: PostgresSchemaContract =
       'ql3_runs_cancel_reason_check',
       'ql3_run_attempts_attempt_check',
       'ql3_run_attempts_status_check',
+      'ql3_run_cancellation_dispatch_status_check',
+      'ql3_run_cancellation_dispatch_result_check',
+      'ql3_run_cancellation_dispatch_counter_check',
+      'ql3_run_cancellation_dispatch_time_check',
+      'ql3_run_cancellation_dispatch_lease_digest_check',
+      'ql3_run_cancellation_dispatch_shape_check',
+      'ql3_run_cancellation_dispatch_result_state_check',
       'ql3_run_attempts_pid_check',
       'ql3_run_attempts_lease_expiry_check',
       'ql3_run_attempts_worker_session_id_check',
@@ -2445,6 +2473,8 @@ export const postgresqlControlSchemaContract: PostgresSchemaContract =
       'ql3_result_rekey_head_overlay_fk',
       'ql3_result_retirement_catalog_fk',
       'ql3_run_attempts_run_fk',
+      'ql3_run_cancellation_dispatch_run_fk',
+      'ql3_run_cancellation_dispatch_attempt_fk',
       'ql3_run_attempts_step_run_fk',
       'ql3_run_log_retention_control_attempt_fk',
       'ql3_run_log_retention_control_run_fk',
diff --git a/packages/ql3-cluster-postgres/src/schema/schemaReadiness.ts b/packages/ql3-cluster-postgres/src/schema/schemaReadiness.ts
index c75bf708..e16edce4 100644
--- a/packages/ql3-cluster-postgres/src/schema/schemaReadiness.ts
+++ b/packages/ql3-cluster-postgres/src/schema/schemaReadiness.ts
@@ -588,6 +588,12 @@ const REQUIRED_RUNTIME_PRIVILEGES = Object.freeze({
     update: true,
     delete: false,
   }),
+  run_cancellation_dispatches: Object.freeze({
+    select: true,
+    insert: true,
+    update: true,
+    delete: false,
+  }),
   run_attempt_log_retention_controls: Object.freeze({
     select: true,
     insert: true,
@@ -1131,6 +1137,12 @@ const REQUIRED_ADMIN_PRIVILEGES = Object.freeze({
     update: false,
     delete: false,
   }),
+  run_cancellation_dispatches: Object.freeze({
+    select: false,
+    insert: false,
+    update: false,
+    delete: false,
+  }),
   run_attempt_log_retention_controls: Object.freeze({
     select: false,
     insert: false,
diff --git a/packages/ql3-cluster-postgres/test/postgres.integration.test.cjs b/packages/ql3-cluster-postgres/test/postgres.integration.test.cjs
index 88811a45..9fe497c8 100644
--- a/packages/ql3-cluster-postgres/test/postgres.integration.test.cjs
+++ b/packages/ql3-cluster-postgres/test/postgres.integration.test.cjs
@@ -33,6 +33,7 @@ const {
   PostgresClusterControlRecoveryResolutionRepository,
   PostgresClusterControlRecoverySource,
   PostgresClusterRunCancellationConvergenceRepository,
+  PostgresCancellationDispatchRepository,
   PostgresClusterScheduleRepository,
   PostgresProjectPolicyRepository,
   PostgresRunRepository,
@@ -41,6 +42,11 @@ const {
   PostgresWorkerSessionRepository,
   PostgresRemoteWorkerAttestationEvidenceProvider,
 } = require('../dist/entrypoints/runtime');
+const {
+  CancellationDispatchBindingConflictError,
+  CancellationDispatchFenceRejectedError,
+  digestCancellationDispatchLeaseToken,
+} = require('@qinglong/runtime-core/cancellation-dispatch');
 const {
   PostgresTaskDefinitionRepository,
   PostgresTriggerRepository,
@@ -789,6 +795,251 @@ if (!migrationConnectionString) {
     },
   });
 
+  test('PostgreSQL cancellation dispatch fences replicas with database time and atomic events', async () => {
+    const runId = '019f7300-0000-7000-8000-000000000901';
+    const attemptId = '019f7300-0000-7000-8000-000000000902';
+    const secondAttemptId = '019f7300-0000-7000-8000-000000000903';
+    const duplicateEventId = '019f7300-0000-7000-8000-000000000904';
+    const retryEventId = '019f7300-0000-7000-8000-000000000905';
+    const terminalEventId = '019f7300-0000-7000-8000-000000000906';
+    const requestedAtMs = 1_750_000_000_100;
+    const migrationDatabase = await open('migration');
+    let firstDatabase;
+    let secondDatabase;
+    try {
+      await runPostgresMigrations({ pool: migrationDatabase.pool });
+      await migrationDatabase.pool.query(
+        'TRUNCATE TABLE "ql3"."run_events", "ql3"."run_retry_policies", "ql3"."run_attempts", "ql3"."runs" CASCADE',
+      );
+      const before = await migrationDatabase.pool.query(
+        `SELECT floor(extract(epoch FROM clock_timestamp()) * 1000)::bigint
+                AS "nowMs"`,
+      );
+      await migrationDatabase.pool.query(
+        `INSERT INTO "ql3"."runs" (
+           id, project_id, task_id, task_revision, trigger_type,
+           execution_origin, execution_owner, status, version,
+           event_sequence, created_at_ms, started_at_ms,
+           cancel_requested_at_ms, cancel_reason
+         ) VALUES (
+           $1, 'default', 'cancellation-integration', 'v1', 'manual',
+           'api', 'runtime', 'running', 2, 0, $2, $2, $3, 'user'
+         )`,
+        [runId, requestedAtMs - 100, requestedAtMs],
+      );
+      await migrationDatabase.pool.query(
+        `INSERT INTO "ql3"."run_attempts" (
+           id, run_id, attempt, status, executor_type, callback_sequence,
+           created_at_ms
+         ) VALUES ($1, $2, 1, 'running', 'local_process', 0, $3)`,
+        [attemptId, runId, requestedAtMs - 50],
+      );
+
+      [firstDatabase, secondDatabase] = await Promise.all([
+        open('runtime'),
+        open('runtime'),
+      ]);
+      const firstRepository = new PostgresCancellationDispatchRepository(
+        firstDatabase.pool,
+      );
+      const secondRepository = new PostgresCancellationDispatchRepository(
+        secondDatabase.pool,
+      );
+      const candidate = {
+        runId,
+        attemptId,
+        requestedAtMs,
+        leaseDurationMs: 10_000,
+      };
+      const [firstClaim, secondClaim] = await Promise.all([
+        firstRepository.claim({
+          ...candidate,
+          owner: 'primary-a',
+          leaseToken: 'lease-a',
+        }),
+        secondRepository.claim({
+          ...candidate,
+          owner: 'primary-b',
+          leaseToken: 'lease-b',
+        }),
+      ]);
+      const claimed = [firstClaim, secondClaim].find(
+        (result) => result.status === 'claimed',
+      );
+      const competing = [firstClaim, secondClaim].find(
+        (result) => result.status !== 'claimed',
+      );
+      assert.equal(claimed?.status, 'claimed');
+      assert.equal(competing?.status, 'leased');
+      assert.equal(claimed.dispatch.version, 1);
+      assert.equal(claimed.dispatch.dispatchCount, 1);
+      assert.equal(claimed.dispatch.createdAtMs >= Number(before.rows[0].nowMs), true);
+      const rawLeaseToken = claimed.leaseToken;
+      const stored = await migrationDatabase.pool.query(
+        `SELECT lease_token_digest AS "leaseTokenDigest",
+                lease_owner AS "leaseOwner", version, dispatch_count
+                AS "dispatchCount"
+           FROM "ql3"."run_cancellation_dispatches" WHERE run_id = $1`,
+        [runId],
+      );
+      assert.equal(
+        stored.rows[0].leaseTokenDigest,
+        digestCancellationDispatchLeaseToken(rawLeaseToken),
+      );
+      assert.notEqual(stored.rows[0].leaseTokenDigest, rawLeaseToken);
+
+      await migrationDatabase.pool.query(
+        `UPDATE "ql3"."run_cancellation_dispatches"
+            SET lease_expires_at_ms = 0 WHERE run_id = $1`,
+        [runId],
+      );
+      const takeover = await secondRepository.claim({
+        ...candidate,
+        owner: 'primary-takeover',
+        leaseToken: 'lease-takeover',
+      });
+      assert.equal(takeover.status, 'claimed');
+      assert.equal(takeover.dispatch.version, 2);
+      assert.equal(takeover.dispatch.dispatchCount, 2);
+      await assert.rejects(
+        firstRepository.recordResult({
+          runId,
+          attemptId,
+          owner: claimed.dispatch.leaseOwner,
+          leaseToken: rawLeaseToken,
+          expectedVersion: claimed.dispatch.version,
+          result: 'already_exited',
+          eventId: terminalEventId,
+        }),
+        CancellationDispatchFenceRejectedError,
+      );
+
+      await migrationDatabase.pool.query(
+        `INSERT INTO "ql3"."run_events" (
+           id, run_id, sequence, type, dedupe_key, actor_type, payload,
+           created_at_ms
+         ) VALUES ($1, $2, 99, 'fixture.event', 'fixture-event', 'system',
+                   '{}'::jsonb, $3)`,
+        [duplicateEventId, runId, requestedAtMs],
+      );
+      await assert.rejects(
+        secondRepository.recordResult({
+          runId,
+          attemptId,
+          owner: 'primary-takeover',
+          leaseToken: 'lease-takeover',
+          expectedVersion: takeover.dispatch.version,
+          result: 'dispatch_error',
+          retryDelayMs: 1_000,
+          eventId: duplicateEventId,
+        }),
+      );
+      const rolledBack = await migrationDatabase.pool.query(
+        `SELECT dispatch.status, dispatch.version, run.version AS "runVersion",
+                run.event_sequence AS "eventSequence"
+           FROM "ql3"."run_cancellation_dispatches" dispatch
+           JOIN "ql3"."runs" run ON run.id = dispatch.run_id
+          WHERE dispatch.run_id = $1`,
+        [runId],
+      );
+      assert.deepEqual(rolledBack.rows, [
+        { status: 'leased', version: 2, runVersion: 2, eventSequence: 0 },
+      ]);
+
+      const retry = await secondRepository.recordResult({
+        runId,
+        attemptId,
+        owner: 'primary-takeover',
+        leaseToken: 'lease-takeover',
+        expectedVersion: takeover.dispatch.version,
+        result: 'dispatch_error',
+        retryDelayMs: 60_000,
+        eventId: retryEventId,
+      });
+      assert.equal(retry.dispatch.status, 'retry_wait');
+      assert.equal(retry.event.type, 'run.cancel_dispatch_failed');
+      assert.equal(
+        (await firstRepository.claim({
+          ...candidate,
+          owner: 'primary-a',
+          leaseToken: 'lease-a-retry',
+        })).status,
+        'not_due',
+      );
+      await migrationDatabase.pool.query(
+        `UPDATE "ql3"."run_cancellation_dispatches"
+            SET next_attempt_at_ms = 0 WHERE run_id = $1`,
+        [runId],
+      );
+      const finalLease = await firstRepository.claim({
+        ...candidate,
+        owner: 'primary-final',
+        leaseToken: 'lease-final',
+      });
+      assert.equal(finalLease.status, 'claimed');
+      assert.equal(finalLease.dispatch.dispatchCount, 3);
+
+      await migrationDatabase.pool.query(
+        `INSERT INTO "ql3"."run_attempts" (
+           id, run_id, attempt, status, executor_type, callback_sequence,
+           created_at_ms
+         ) VALUES ($1, $2, 2, 'running', 'local_process', 0, $3)`,
+        [secondAttemptId, runId, requestedAtMs],
+      );
+      await assert.rejects(
+        secondRepository.claim({
+          ...candidate,
+          attemptId: secondAttemptId,
+          owner: 'primary-conflict',
+          leaseToken: 'lease-conflict',
+        }),
+        CancellationDispatchBindingConflictError,
+      );
+
+      const terminal = await firstRepository.recordResult({
+        runId,
+        attemptId,
+        owner: 'primary-final',
+        leaseToken: 'lease-final',
+        expectedVersion: finalLease.dispatch.version,
+        result: 'already_exited',
+        eventId: terminalEventId,
+      });
+      assert.equal(terminal.dispatch.status, 'dispatched');
+      assert.equal(terminal.event.sequence, 2);
+      assert.deepEqual(terminal.event.payload, {
+        attempt_id: attemptId,
+        dispatch_count: 3,
+        result: 'already_exited',
+      });
+      const durable = await migrationDatabase.pool.query(
+        `SELECT dispatch.status, dispatch.lease_token_digest AS "leaseDigest",
+                dispatch.dispatch_count AS "dispatchCount",
+                run.version AS "runVersion",
+                run.event_sequence AS "eventSequence"
+           FROM "ql3"."run_cancellation_dispatches" dispatch
+           JOIN "ql3"."runs" run ON run.id = dispatch.run_id
+          WHERE dispatch.run_id = $1`,
+        [runId],
+      );
+      assert.deepEqual(durable.rows, [
+        {
+          status: 'dispatched',
+          leaseDigest: null,
+          dispatchCount: 3,
+          runVersion: 4,
+          eventSequence: 2,
+        },
+      ]);
+    } finally {
+      await Promise.allSettled([
+        firstDatabase?.close(),
+        secondDatabase?.close(),
+      ]);
+      await migrationDatabase.close();
+    }
+  });
+
   test('PostgreSQL Task Start atomically persists and exactly replays one Run aggregate', async () => {
     const projectId = 'task-start-integration';
     const taskId = 'task-start-command';
diff --git a/packages/ql3-cluster-postgres/test/postgresqlMigrationDefinitions.test.cjs b/packages/ql3-cluster-postgres/test/postgresqlMigrationDefinitions.test.cjs
index 7130bb77..f6227871 100644
--- a/packages/ql3-cluster-postgres/test/postgresqlMigrationDefinitions.test.cjs
+++ b/packages/ql3-cluster-postgres/test/postgresqlMigrationDefinitions.test.cjs
@@ -116,6 +116,7 @@ test('defines the immutable PostgreSQL capability and Run core stream', async ()
       'pg-0063-plugin-package-secret-binding-transition-receipts',
       'pg-0064-plugin-package-secret-binding-transition-approval-plans',
       'pg-0065-approved-action-manual-recovery',
+      'pg-0066-cancellation-dispatch',
     ],
   );
   for (const migration of postgresqlMainMigrationStream.migrations) {
@@ -579,6 +580,11 @@ test('freezes every published PostgreSQL migration checksum', () => {
       checksum:
         '95387c5b40659490dbcb7626ecd15bacf6412360752bef88873bde57c43e0185',
     },
+    {
+      id: 'pg-0066-cancellation-dispatch',
+      checksum:
+        'b6d7ac81b5f75530df05f8ef05878fa30aa0f4418363973ded89d14ffce151b2',
+    },
   ];
   assert.deepEqual(
     postgresqlMainMigrationStream.migrations.map(({ id, checksum }) => ({
@@ -2282,3 +2288,44 @@ test('advances capability v64 with atomic least-privilege manual recovery', asyn
     /migration_id = 'pg-0064-plugin-package-secret-binding-transition-approval-plans'/,
   );
 });
+
+test('advances capability v65 with database-timed fenced cancellation dispatch', async () => {
+  const migration = migrationById('pg-0066-cancellation-dispatch');
+  const statements = [];
+  await migration.up({
+    async query(statement) {
+      statements.push(statement);
+      return { rows: [] };
+    },
+  });
+  const sql = statements.join('\n');
+  assert.match(
+    sql,
+    /CREATE UNIQUE INDEX ql3_run_attempts_run_id_uidx ON "ql3"\."run_attempts" \(run_id, id\)/,
+  );
+  assert.match(
+    sql,
+    /CREATE TABLE "ql3"\."run_cancellation_dispatches"/,
+  );
+  assert.match(
+    sql,
+    /FOREIGN KEY \(run_id, attempt_id\)[\s\S]+REFERENCES "ql3"\."run_attempts" \(run_id, id\)/,
+  );
+  assert.match(sql, /lease_token_digest char\(64\)/);
+  assert.doesNotMatch(sql, /lease_token varchar/);
+  assert.match(
+    sql,
+    /GRANT SELECT, INSERT, UPDATE ON "ql3"\."run_cancellation_dispatches" TO ql3_runtime/,
+  );
+  assert.doesNotMatch(
+    sql,
+    /GRANT (?:SELECT|INSERT|UPDATE|DELETE)[^;]+run_cancellation_dispatches[^;]+ql3_admin/,
+  );
+  assert.match(sql, /contract_version = 65/);
+  assert.match(sql, /"run_cancellation_dispatch":1/);
+  assert.match(sql, /contract_version = 64/);
+  assert.match(
+    sql,
+    /migration_id = 'pg-0065-approved-action-manual-recovery'/,
+  );
+});
diff --git a/packages/ql3-cluster-postgres/test/postgresqlSchemaReadiness.test.cjs b/packages/ql3-cluster-postgres/test/postgresqlSchemaReadiness.test.cjs
index 6da6f323..a4a88c6e 100644
--- a/packages/ql3-cluster-postgres/test/postgresqlSchemaReadiness.test.cjs
+++ b/packages/ql3-cluster-postgres/test/postgresqlSchemaReadiness.test.cjs
@@ -61,6 +61,7 @@ function validPrivileges() {
     tool_invocation_input_artifacts: [true, true, false, false],
     tool_invocation_preview_artifacts: [true, true, false, false],
     run_attempts: [true, true, true, false],
+    run_cancellation_dispatches: [true, true, true, false],
     run_attempt_log_retention_controls: [true, true, true, true],
     run_attempt_log_artifact_tombstones: [true, true, false, false],
     worker_sessions: [true, true, true, false],
@@ -194,6 +195,7 @@ function validAdminPrivileges() {
     tool_invocation_input_artifacts: [false, false, false, false],
     tool_invocation_preview_artifacts: [false, false, false, false],
     run_attempts: [false, false, false, false],
+    run_cancellation_dispatches: [false, false, false, false],
     run_attempt_log_retention_controls: [false, false, false, false],
     run_attempt_log_artifact_tombstones: [false, false, false, false],
     worker_sessions: [false, false, false, false],
@@ -815,7 +817,7 @@ test('accepts the exact PostgreSQL control schema and least-privilege runtime ro
     serverMajor: 16,
     currentUser: 'ql3_runtime',
     contractName: 'control-core',
-    contractVersion: 64,
+    contractVersion: 65,
     migrationIds: [
       'pg-0001-schema-capability',
       'pg-0002-run-core',
@@ -882,6 +884,7 @@ test('accepts the exact PostgreSQL control schema and least-privilege runtime ro
       'pg-0063-plugin-package-secret-binding-transition-receipts',
       'pg-0064-plugin-package-secret-binding-transition-approval-plans',
       'pg-0065-approved-action-manual-recovery',
+      'pg-0066-cancellation-dispatch',
     ],
   });
 });
@@ -912,10 +915,10 @@ test('accepts the exact schema and isolated least-privilege admin role', async (
     }),
   );
   assert.equal(report.currentUser, 'ql3_admin');
-  assert.equal(report.contractVersion, 64);
+  assert.equal(report.contractVersion, 65);
   assert.equal(
     report.migrationIds.at(-1),
-    'pg-0065-approved-action-manual-recovery',
+    'pg-0066-cancellation-dispatch',
   );
 });
 
@@ -928,10 +931,10 @@ test('accepts the isolated least-privilege automation manager role', async () =>
     }),
   );
   assert.equal(report.currentUser, 'ql3_automation_manager');
-  assert.equal(report.contractVersion, 64);
+  assert.equal(report.contractVersion, 65);
   assert.equal(
     report.migrationIds.at(-1),
-    'pg-0065-approved-action-manual-recovery',
+    'pg-0066-cancellation-dispatch',
   );
 
   const widened = automationManagerPrivileges();
@@ -960,10 +963,10 @@ test('accepts the isolated least-privilege human Approval manager role', async (
     }),
   );
   assert.equal(report.currentUser, 'ql3_approval_manager');
-  assert.equal(report.contractVersion, 64);
+  assert.equal(report.contractVersion, 65);
   assert.equal(
     report.migrationIds.at(-1),
-    'pg-0065-approved-action-manual-recovery',
+    'pg-0066-cancellation-dispatch',
   );
 
   const widened = approvalManagerPrivileges();
@@ -994,10 +997,10 @@ test('accepts the isolated least-privilege Run manager role', async () => {
     }),
   );
   assert.equal(report.currentUser, 'ql3_run_manager');
-  assert.equal(report.contractVersion, 64);
+  assert.equal(report.contractVersion, 65);
   assert.equal(
     report.migrationIds.at(-1),
-    'pg-0065-approved-action-manual-recovery',
+    'pg-0066-cancellation-dispatch',
   );
 
   const widened = runManagerPrivileges();
@@ -1129,10 +1132,10 @@ test('accepts the exact schema and isolated Worker ingress role', async () => {
     }),
   );
   assert.equal(report.currentUser, 'ql3_worker_ingress');
-  assert.equal(report.contractVersion, 64);
+  assert.equal(report.contractVersion, 65);
   assert.equal(
     report.migrationIds.at(-1),
-    'pg-0065-approved-action-manual-recovery',
+    'pg-0066-cancellation-dispatch',
   );
 });
 
diff --git a/packages/ql3-runtime-core/package.json b/packages/ql3-runtime-core/package.json
index a565828d..7bd20fcc 100644
--- a/packages/ql3-runtime-core/package.json
+++ b/packages/ql3-runtime-core/package.json
@@ -41,6 +41,9 @@
       "run-cancellation": [
         "dist/run/clusterRunCancellation.d.ts"
       ],
+      "cancellation-dispatch": [
+        "dist/run/cancellation-dispatch/cancellationDispatch.d.ts"
+      ],
       "task-start": [
         "dist/task-start/taskStart.d.ts"
       ],
@@ -776,6 +779,11 @@
       "require": "./dist/run/clusterRunCancellation.js",
       "default": "./dist/run/clusterRunCancellation.js"
     },
+    "./cancellation-dispatch": {
+      "types": "./dist/run/cancellation-dispatch/cancellationDispatch.d.ts",
+      "require": "./dist/run/cancellation-dispatch/cancellationDispatch.js",
+      "default": "./dist/run/cancellation-dispatch/cancellationDispatch.js"
+    },
     "./task-start": {
       "types": "./dist/task-start/taskStart.d.ts",
       "require": "./dist/task-start/taskStart.js",
diff --git a/packages/ql3-runtime-core/src/run/cancellation-dispatch/cancellationDispatch.ts b/packages/ql3-runtime-core/src/run/cancellation-dispatch/cancellationDispatch.ts
new file mode 100644
index 00000000..62168da1
--- /dev/null
+++ b/packages/ql3-runtime-core/src/run/cancellation-dispatch/cancellationDispatch.ts
@@ -0,0 +1,496 @@
+import { createHash } from 'node:crypto';
+import type { RunEventRecord } from '../run';
+
+export const CANCELLATION_DISPATCH_STATUSES = Object.freeze([
+  'pending',
+  'leased',
+  'retry_wait',
+  'dispatched',
+  'blocked',
+] as const);
+
+export type CancellationDispatchStatus =
+  (typeof CANCELLATION_DISPATCH_STATUSES)[number];
+
+export const CANCELLATION_DISPATCH_RESULTS = Object.freeze([
+  'termination_requested',
+  'already_exited',
+  'identity_mismatch',
+  'pid_mismatch',
+  'unsupported',
+  'invalid',
+  'controller_missing',
+  'handle_missing',
+  'dispatch_error',
+] as const);
+
+export type CancellationDispatchResult =
+  (typeof CANCELLATION_DISPATCH_RESULTS)[number];
+
+export const CANCELLATION_DISPATCH_RETRYABLE_RESULTS = Object.freeze([
+  'controller_missing',
+  'handle_missing',
+  'dispatch_error',
+] as const satisfies readonly CancellationDispatchResult[]);
+
+export const CANCELLATION_DISPATCH_BLOCKING_RESULTS = Object.freeze([
+  'identity_mismatch',
+  'pid_mismatch',
+  'unsupported',
+  'invalid',
+] as const satisfies readonly CancellationDispatchResult[]);
+
+export const MAX_CANCELLATION_DISPATCH_LEASE_MS = 5 * 60_000;
+export const MAX_CANCELLATION_DISPATCH_RETRY_DELAY_MS = 24 * 60 * 60_000;
+
+export interface CancellationDispatchRecord {
+  readonly runId: string;
+  readonly attemptId: string;
+  readonly status: CancellationDispatchStatus;
+  readonly version: number;
+  readonly dispatchCount: number;
+  readonly nextAttemptAtMs?: number;
+  readonly leaseOwner?: string;
+  readonly leaseTokenDigest?: string;
+  readonly leaseExpiresAtMs?: number;
+  readonly lastResult?: CancellationDispatchResult;
+  readonly lastDispatchedAtMs?: number;
+  readonly createdAtMs: number;
+  readonly updatedAtMs: number;
+}
+
+export interface ClaimCancellationDispatchCommand {
+  readonly runId: string;
+  readonly attemptId: string;
+  readonly requestedAtMs: number;
+  readonly owner: string;
+  readonly leaseToken: string;
+  readonly leaseDurationMs: number;
+}
+
+export type ClaimCancellationDispatchResult =
+  | Readonly<{
+      status: 'claimed';
+      dispatch: Readonly<CancellationDispatchRecord>;
+      leaseToken: string;
+    }>
+  | Readonly<{ status: 'not_eligible' }>
+  | Readonly<{
+      status: 'not_due' | 'leased' | 'dispatched' | 'blocked';
+      dispatch: Readonly<CancellationDispatchRecord>;
+    }>;
+
+export interface RecordCancellationDispatchResultCommand {
+  readonly runId: string;
+  readonly attemptId: string;
+  readonly owner: string;
+  readonly leaseToken: string;
+  readonly expectedVersion: number;
+  readonly result: CancellationDispatchResult;
+  readonly retryDelayMs?: number;
+  readonly eventId: string;
+}
+
+export interface RecordCancellationDispatchResult {
+  readonly dispatch: Readonly<CancellationDispatchRecord>;
+  readonly event: Readonly<RunEventRecord>;
+}
+
+export interface CancellationDispatchRepository {
+  findByRunId(
+    runId: string,
+  ): Promise<Readonly<CancellationDispatchRecord> | null>;
+  claim(
+    command: Readonly<ClaimCancellationDispatchCommand>,
+  ): Promise<ClaimCancellationDispatchResult>;
+  recordResult(
+    command: Readonly<RecordCancellationDispatchResultCommand>,
+  ): Promise<Readonly<RecordCancellationDispatchResult>>;
+}
+
+export class CancellationDispatchError extends Error {
+  constructor(
+    message: string,
+    readonly code: string,
+    readonly retryable = false,
+    options?: ErrorOptions,
+  ) {
+    super(message, options);
+    this.name = new.target.name;
+  }
+}
+
+export class InvalidCancellationDispatchCommandError extends CancellationDispatchError {
+  constructor(message: string) {
+    super(message, 'INVALID_CANCELLATION_DISPATCH_COMMAND');
+  }
+}
+
+export class CancellationDispatchBindingConflictError extends CancellationDispatchError {
+  constructor(runId: string, attemptId: string) {
+    super(
+      `Cancellation dispatch for Run ${runId} is already bound to another Attempt than ${attemptId}`,
+      'CANCELLATION_DISPATCH_BINDING_CONFLICT',
+    );
+  }
+}
+
+export class CancellationDispatchFenceRejectedError extends CancellationDispatchError {
+  constructor(runId: string) {
+    super(
+      `Cancellation dispatch lease for Run ${runId} is stale or no longer owned by this worker`,
+      'CANCELLATION_DISPATCH_FENCE_REJECTED',
+    );
+  }
+}
+
+export class CancellationDispatchRepositoryError extends CancellationDispatchError {
+  constructor(cause?: unknown) {
+    super(
+      'Cancellation dispatch repository operation failed',
+      'CANCELLATION_DISPATCH_REPOSITORY_FAILED',
+      false,
+      { cause },
+    );
+  }
+}
+
+const SHA256_PATTERN = /^[a-f0-9]{64}$/u;
+
+function record(value: unknown, name: string): Record<string, unknown> {
+  if (value === null || typeof value !== 'object' || Array.isArray(value)) {
+    throw new InvalidCancellationDispatchCommandError(`${name} is invalid`);
+  }
+  return value as Record<string, unknown>;
+}
+
+function exactKeys(
+  value: Record<string, unknown>,
+  expected: readonly string[],
+  name: string,
+): void {
+  const actual = Object.keys(value).sort();
+  const canonical = [...expected].sort();
+  if (
+    actual.length !== canonical.length ||
+    actual.some((key, index) => key !== canonical[index])
+  ) {
+    throw new InvalidCancellationDispatchCommandError(
+      `${name} shape is invalid`,
+    );
+  }
+}
+
+function identifier(
+  value: unknown,
+  name: string,
+  maximum: number,
+): string {
+  if (
+    typeof value !== 'string' ||
+    value.length < 1 ||
+    value.length > maximum ||
+    /[\u0000-\u001f\u007f]/u.test(value)
+  ) {
+    throw new InvalidCancellationDispatchCommandError(`${name} is invalid`);
+  }
+  return value;
+}
+
+function integer(
+  value: unknown,
+  name: string,
+  minimum: number,
+  maximum = Number.MAX_SAFE_INTEGER,
+): number {
+  if (
+    typeof value !== 'number' ||
+    !Number.isSafeInteger(value) ||
+    value < minimum ||
+    value > maximum
+  ) {
+    throw new InvalidCancellationDispatchCommandError(`${name} is invalid`);
+  }
+  return value;
+}
+
+export function digestCancellationDispatchLeaseToken(value: string): string {
+  const token = identifier(value, 'leaseToken', 128);
+  return createHash('sha256')
+    .update('qinglong.cancellation-dispatch-lease.v1\0', 'utf8')
+    .update(token, 'utf8')
+    .digest('hex');
+}
+
+export function normalizeCancellationDispatchRunId(value: string): string {
+  return identifier(value, 'runId', 36);
+}
+
+export function normalizeClaimCancellationDispatchCommand(
+  value: Readonly<ClaimCancellationDispatchCommand>,
+): Readonly<ClaimCancellationDispatchCommand> {
+  const command = record(value, 'claim command');
+  exactKeys(
+    command,
+    [
+      'runId',
+      'attemptId',
+      'requestedAtMs',
+      'owner',
+      'leaseToken',
+      'leaseDurationMs',
+    ],
+    'claim command',
+  );
+  return Object.freeze({
+    runId: identifier(command.runId, 'runId', 36),
+    attemptId: identifier(command.attemptId, 'attemptId', 36),
+    requestedAtMs: integer(command.requestedAtMs, 'requestedAtMs', 0),
+    owner: identifier(command.owner, 'owner', 128),
+    leaseToken: identifier(command.leaseToken, 'leaseToken', 128),
+    leaseDurationMs: integer(
+      command.leaseDurationMs,
+      'leaseDurationMs',
+      1,
+      MAX_CANCELLATION_DISPATCH_LEASE_MS,
+    ),
+  });
+}
+
+export function normalizeRecordCancellationDispatchResultCommand(
+  value: Readonly<RecordCancellationDispatchResultCommand>,
+): Readonly<RecordCancellationDispatchResultCommand> {
+  const command = record(value, 'result command');
+  const retryable = CANCELLATION_DISPATCH_RETRYABLE_RESULTS.includes(
+    command.result as (typeof CANCELLATION_DISPATCH_RETRYABLE_RESULTS)[number],
+  );
+  exactKeys(
+    command,
+    [
+      'runId',
+      'attemptId',
+      'owner',
+      'leaseToken',
+      'expectedVersion',
+      'result',
+      ...(retryable ? ['retryDelayMs'] : []),
+      'eventId',
+    ],
+    'result command',
+  );
+  if (
+    !CANCELLATION_DISPATCH_RESULTS.includes(
+      command.result as CancellationDispatchResult,
+    )
+  ) {
+    throw new InvalidCancellationDispatchCommandError('result is invalid');
+  }
+  return Object.freeze({
+    runId: identifier(command.runId, 'runId', 36),
+    attemptId: identifier(command.attemptId, 'attemptId', 36),
+    owner: identifier(command.owner, 'owner', 128),
+    leaseToken: identifier(command.leaseToken, 'leaseToken', 128),
+    expectedVersion: integer(
+      command.expectedVersion,
+      'expectedVersion',
+      1,
+      2_147_483_647,
+    ),
+    result: command.result as CancellationDispatchResult,
+    ...(retryable
+      ? {
+          retryDelayMs: integer(
+            command.retryDelayMs,
+            'retryDelayMs',
+            1,
+            MAX_CANCELLATION_DISPATCH_RETRY_DELAY_MS,
+          ),
+        }
+      : {}),
+    eventId: identifier(command.eventId, 'eventId', 36),
+  });
+}
+
+export function cancellationDispatchResultState(
+  result: CancellationDispatchResult,
+): Readonly<{
+  status: Extract<
+    CancellationDispatchStatus,
+    'retry_wait' | 'dispatched' | 'blocked'
+  >;
+  eventType:
+    | 'run.cancel_dispatch_failed'
+    | 'run.cancel_dispatched'
+    | 'run.cancel_dispatch_blocked';
+}> {
+  if (
+    CANCELLATION_DISPATCH_RETRYABLE_RESULTS.includes(
+      result as (typeof CANCELLATION_DISPATCH_RETRYABLE_RESULTS)[number],
+    )
+  ) {
+    return Object.freeze({
+      status: 'retry_wait',
+      eventType: 'run.cancel_dispatch_failed',
+    });
+  }
+  if (
+    CANCELLATION_DISPATCH_BLOCKING_RESULTS.includes(
+      result as (typeof CANCELLATION_DISPATCH_BLOCKING_RESULTS)[number],
+    )
+  ) {
+    return Object.freeze({
+      status: 'blocked',
+      eventType: 'run.cancel_dispatch_blocked',
+    });
+  }
+  if (!CANCELLATION_DISPATCH_RESULTS.includes(result)) {
+    throw new InvalidCancellationDispatchCommandError('result is invalid');
+  }
+  return Object.freeze({
+    status: 'dispatched',
+    eventType: 'run.cancel_dispatched',
+  });
+}
+
+export function normalizeCancellationDispatchRecord(
+  value: CancellationDispatchRecord,
+): Readonly<CancellationDispatchRecord> {
+  const dispatch = record(value, 'dispatch record');
+  const optionalKeys = [
+    'nextAttemptAtMs',
+    'leaseOwner',
+    'leaseTokenDigest',
+    'leaseExpiresAtMs',
+    'lastResult',
+    'lastDispatchedAtMs',
+  ].filter((key) => dispatch[key] !== undefined);
+  exactKeys(
+    dispatch,
+    [
+      'runId',
+      'attemptId',
+      'status',
+      'version',
+      'dispatchCount',
+      ...optionalKeys,
+      'createdAtMs',
+      'updatedAtMs',
+    ],
+    'dispatch record',
+  );
+  if (
+    !CANCELLATION_DISPATCH_STATUSES.includes(
+      dispatch.status as CancellationDispatchStatus,
+    )
+  ) {
+    throw new InvalidCancellationDispatchCommandError('status is invalid');
+  }
+  const status = dispatch.status as CancellationDispatchStatus;
+  const createdAtMs = integer(dispatch.createdAtMs, 'createdAtMs', 0);
+  const updatedAtMs = integer(dispatch.updatedAtMs, 'updatedAtMs', createdAtMs);
+  const version = integer(dispatch.version, 'version', 0, 2_147_483_647);
+  const dispatchCount = integer(
+    dispatch.dispatchCount,
+    'dispatchCount',
+    0,
+    2_147_483_647,
+  );
+  const lastResult = dispatch.lastResult as
+    | CancellationDispatchResult
+    | undefined;
+  const hasLease =
+    dispatch.leaseOwner !== undefined ||
+    dispatch.leaseTokenDigest !== undefined ||
+    dispatch.leaseExpiresAtMs !== undefined;
+  if (
+    (status === 'leased' &&
+      (typeof dispatch.leaseTokenDigest !== 'string' ||
+        !SHA256_PATTERN.test(dispatch.leaseTokenDigest) ||
+        dispatch.leaseOwner === undefined ||
+        dispatch.leaseExpiresAtMs === undefined)) ||
+    (status !== 'leased' && hasLease) ||
+    ((status === 'pending' || status === 'retry_wait') &&
+      dispatch.nextAttemptAtMs === undefined) ||
+    ((status === 'leased' || status === 'dispatched' || status === 'blocked') &&
+      dispatch.nextAttemptAtMs !== undefined) ||
+    ((status === 'dispatched' || status === 'blocked') &&
+      lastResult === undefined) ||
+    (status === 'pending' &&
+      (version !== 0 || dispatchCount !== 0 || lastResult !== undefined)) ||
+    (status !== 'pending' && dispatchCount < 1) ||
+    version < dispatchCount ||
+    (status === 'leased' &&
+      lastResult !== undefined &&
+      !CANCELLATION_DISPATCH_RETRYABLE_RESULTS.includes(
+        lastResult as (typeof CANCELLATION_DISPATCH_RETRYABLE_RESULTS)[number],
+      )) ||
+    (status === 'retry_wait' &&
+      !CANCELLATION_DISPATCH_RETRYABLE_RESULTS.includes(
+        lastResult as (typeof CANCELLATION_DISPATCH_RETRYABLE_RESULTS)[number],
+      )) ||
+    (status === 'dispatched' &&
+      lastResult !== 'termination_requested' &&
+      lastResult !== 'already_exited') ||
+    (status === 'blocked' &&
+      !CANCELLATION_DISPATCH_BLOCKING_RESULTS.includes(
+        lastResult as (typeof CANCELLATION_DISPATCH_BLOCKING_RESULTS)[number],
+      ))
+  ) {
+    throw new InvalidCancellationDispatchCommandError(
+      'dispatch state is inconsistent',
+    );
+  }
+  if (
+    dispatch.lastResult !== undefined &&
+    !CANCELLATION_DISPATCH_RESULTS.includes(
+      dispatch.lastResult as CancellationDispatchResult,
+    )
+  ) {
+    throw new InvalidCancellationDispatchCommandError('lastResult is invalid');
+  }
+  return Object.freeze({
+    runId: identifier(dispatch.runId, 'runId', 36),
+    attemptId: identifier(dispatch.attemptId, 'attemptId', 36),
+    status,
+    version,
+    dispatchCount,
+    ...(dispatch.nextAttemptAtMs === undefined
+      ? {}
+      : {
+          nextAttemptAtMs: integer(
+            dispatch.nextAttemptAtMs,
+            'nextAttemptAtMs',
+            0,
+          ),
+        }),
+    ...(dispatch.leaseOwner === undefined
+      ? {}
+      : { leaseOwner: identifier(dispatch.leaseOwner, 'leaseOwner', 128) }),
+    ...(dispatch.leaseTokenDigest === undefined
+      ? {}
+      : { leaseTokenDigest: dispatch.leaseTokenDigest as string }),
+    ...(dispatch.leaseExpiresAtMs === undefined
+      ? {}
+      : {
+          leaseExpiresAtMs: integer(
+            dispatch.leaseExpiresAtMs,
+            'leaseExpiresAtMs',
+            0,
+          ),
+        }),
+    ...(lastResult === undefined
+      ? {}
+      : { lastResult }),
+    ...(dispatch.lastDispatchedAtMs === undefined
+      ? {}
+      : {
+          lastDispatchedAtMs: integer(
+            dispatch.lastDispatchedAtMs,
+            'lastDispatchedAtMs',
+            0,
+          ),
+        }),
+    createdAtMs,
+    updatedAtMs,
+  });
+}
diff --git a/packages/ql3-runtime-core/test/cancellationDispatch.test.cjs b/packages/ql3-runtime-core/test/cancellationDispatch.test.cjs
new file mode 100644
index 00000000..73e2cbd8
--- /dev/null
+++ b/packages/ql3-runtime-core/test/cancellationDispatch.test.cjs
@@ -0,0 +1,177 @@
+const assert = require('node:assert/strict');
+const { test } = require('node:test');
+
+const root = require('../dist');
+const contract = require('../dist/run/cancellation-dispatch/cancellationDispatch');
+
+const RUN_ID = '019f71c0-0000-7000-8000-000000000001';
+const ATTEMPT_ID = '019f71c0-0000-7000-8000-000000000002';
+const EVENT_ID = '019f71c0-0000-7000-8000-000000000003';
+const TOKEN_DIGEST =
+  'bf9dbe4700121e13b366bba7adbdfbb5a29d7e4b7a4b8d9181acd45b38c9a8bf';
+
+function pendingRecord(overrides = {}) {
+  return {
+    runId: RUN_ID,
+    attemptId: ATTEMPT_ID,
+    status: 'pending',
+    version: 0,
+    dispatchCount: 0,
+    nextAttemptAtMs: 1_750_000_000_100,
+    createdAtMs: 1_750_000_000_100,
+    updatedAtMs: 1_750_000_000_100,
+    ...overrides,
+  };
+}
+
+test('normalizes database-timed claim and result commands with exact bounds', () => {
+  const claim = contract.normalizeClaimCancellationDispatchCommand({
+    runId: RUN_ID,
+    attemptId: ATTEMPT_ID,
+    requestedAtMs: 1_750_000_000_100,
+    owner: 'primary-a',
+    leaseToken: 'lease-a',
+    leaseDurationMs: contract.MAX_CANCELLATION_DISPATCH_LEASE_MS,
+  });
+  assert.equal(Object.isFrozen(claim), true);
+  assert.equal('nowMs' in claim, false);
+
+  const result = contract.normalizeRecordCancellationDispatchResultCommand({
+    runId: RUN_ID,
+    attemptId: ATTEMPT_ID,
+    owner: 'primary-a',
+    leaseToken: 'lease-a',
+    expectedVersion: 1,
+    result: 'dispatch_error',
+    retryDelayMs: contract.MAX_CANCELLATION_DISPATCH_RETRY_DELAY_MS,
+    eventId: EVENT_ID,
+  });
+  assert.equal(Object.isFrozen(result), true);
+  assert.equal('atMs' in result, false);
+  assert.equal('nextAttemptAtMs' in result, false);
+
+  assert.throws(
+    () =>
+      contract.normalizeClaimCancellationDispatchCommand({
+        ...claim,
+        nowMs: 1_750_000_000_100,
+      }),
+    contract.InvalidCancellationDispatchCommandError,
+  );
+  assert.throws(
+    () =>
+      contract.normalizeRecordCancellationDispatchResultCommand({
+        ...result,
+        retryDelayMs: 0,
+      }),
+    contract.InvalidCancellationDispatchCommandError,
+  );
+  assert.throws(
+    () =>
+      contract.normalizeRecordCancellationDispatchResultCommand({
+        ...result,
+        result: 'already_exited',
+      }),
+    contract.InvalidCancellationDispatchCommandError,
+  );
+});
+
+test('domain-separates lease digests and never admits a raw token into records', () => {
+  assert.equal(
+    contract.digestCancellationDispatchLeaseToken('lease-a'),
+    TOKEN_DIGEST,
+  );
+  assert.match(TOKEN_DIGEST, /^[0-9a-f]{64}$/);
+
+  const { nextAttemptAtMs: _nextAttemptAtMs, ...pending } = pendingRecord();
+  const leased = contract.normalizeCancellationDispatchRecord(
+    {
+      ...pending,
+      status: 'leased',
+      version: 1,
+      dispatchCount: 1,
+      leaseOwner: 'primary-a',
+      leaseTokenDigest: TOKEN_DIGEST,
+      leaseExpiresAtMs: 1_750_000_000_200,
+    },
+  );
+  assert.equal(leased.leaseTokenDigest, TOKEN_DIGEST);
+  assert.equal('leaseToken' in leased, false);
+  assert.throws(
+    () =>
+      contract.normalizeCancellationDispatchRecord({
+        ...leased,
+        leaseToken: 'lease-a',
+      }),
+    contract.InvalidCancellationDispatchCommandError,
+  );
+});
+
+test('rejects records that violate counter, lease, retry, or terminal state invariants', () => {
+  for (const invalid of [
+    pendingRecord({ version: 1 }),
+    pendingRecord({ status: 'retry_wait', version: 2, dispatchCount: 1 }),
+    pendingRecord({
+      status: 'leased',
+      version: 1,
+      dispatchCount: 1,
+      nextAttemptAtMs: undefined,
+      leaseOwner: 'primary-a',
+      leaseTokenDigest: TOKEN_DIGEST,
+      leaseExpiresAtMs: 1_750_000_000_200,
+      lastResult: 'already_exited',
+    }),
+    pendingRecord({
+      status: 'dispatched',
+      version: 2,
+      dispatchCount: 1,
+      nextAttemptAtMs: undefined,
+      lastResult: 'identity_mismatch',
+    }),
+    pendingRecord({
+      status: 'blocked',
+      version: 2,
+      dispatchCount: 1,
+      nextAttemptAtMs: undefined,
+      lastResult: 'dispatch_error',
+    }),
+    pendingRecord({ version: 0, dispatchCount: 1 }),
+  ]) {
+    assert.throws(
+      () => contract.normalizeCancellationDispatchRecord(invalid),
+      contract.InvalidCancellationDispatchCommandError,
+    );
+  }
+});
+
+test('classifies every result into one durable state and low-sensitive event', () => {
+  for (const result of contract.CANCELLATION_DISPATCH_RESULTS) {
+    const state = contract.cancellationDispatchResultState(result);
+    if (contract.CANCELLATION_DISPATCH_RETRYABLE_RESULTS.includes(result)) {
+      assert.deepEqual(state, {
+        status: 'retry_wait',
+        eventType: 'run.cancel_dispatch_failed',
+      });
+    } else if (
+      contract.CANCELLATION_DISPATCH_BLOCKING_RESULTS.includes(result)
+    ) {
+      assert.deepEqual(state, {
+        status: 'blocked',
+        eventType: 'run.cancel_dispatch_blocked',
+      });
+    } else {
+      assert.deepEqual(state, {
+        status: 'dispatched',
+        eventType: 'run.cancel_dispatched',
+      });
+    }
+  }
+});
+
+test('publishes the profile-neutral contract only through its explicit subpath', () => {
+  assert.equal(root.normalizeCancellationDispatchRecord, undefined);
+  assert.equal(
+    root.PostgresCancellationDispatchRepository,
+    undefined,
+  );
+});
diff --git a/scripts/ql3-postgres-ha-cancellation-dispatch-fixture.cjs b/scripts/ql3-postgres-ha-cancellation-dispatch-fixture.cjs
new file mode 100644
index 00000000..52cbe376
--- /dev/null
+++ b/scripts/ql3-postgres-ha-cancellation-dispatch-fixture.cjs
@@ -0,0 +1,280 @@
+const assert = require('node:assert/strict');
+
+const {
+  createPostgresDatabaseOpener,
+  PostgresCancellationDispatchRepository,
+} = require('../packages/ql3-cluster-postgres/dist/entrypoints/runtime.js');
+const {
+  CancellationDispatchFenceRejectedError,
+  digestCancellationDispatchLeaseToken,
+} = require('../packages/ql3-runtime-core/dist/run/cancellation-dispatch/cancellationDispatch.js');
+
+const FIXTURE = Object.freeze({
+  runId: 'ha-cancel-run-d363',
+  attemptId: 'ha-cancel-attempt-d363',
+  requestedAtMs: 1_750_000_000_100,
+  retryEventId: 'ha-cancel-retry-event-d363',
+  terminalEventId: 'ha-cancel-terminal-event-d363',
+  settledEventId: 'ha-cancel-settled-event-d363',
+});
+
+async function openRuntime(connectionString, applicationName) {
+  return createPostgresDatabaseOpener({
+    role: 'runtime',
+    connection: { connectionString, tls: { mode: 'disable' } },
+    pool: { maxConnections: 2, applicationName },
+    onPoolError(error) {
+      throw error;
+    },
+  })();
+}
+
+async function cancellationDispatchFacts(pool) {
+  const result = await pool.query(
+    `SELECT dispatch.status, dispatch.version,
+            dispatch.dispatch_count AS "dispatchCount",
+            dispatch.lease_token_digest AS "leaseTokenDigest",
+            dispatch.last_result AS "lastResult",
+            run.version AS "runVersion",
+            run.event_sequence AS "eventSequence",
+            count(event.id)::integer AS "eventCount"
+       FROM "ql3"."run_cancellation_dispatches" dispatch
+       JOIN "ql3"."runs" run ON run.id = dispatch.run_id
+       LEFT JOIN "ql3"."run_events" event ON event.run_id = run.id
+      WHERE dispatch.run_id = $1
+      GROUP BY dispatch.run_id, run.id`,
+    [FIXTURE.runId],
+  );
+  assert.equal(result.rows.length, 1);
+  return result.rows[0];
+}
+
+async function persistCancellationDispatchHaFixture(options) {
+  const { migrationPool, runtimeConnectionString } = options;
+  const beforeClock = await migrationPool.query(
+    `SELECT floor(extract(epoch FROM clock_timestamp()) * 1000)::bigint
+            AS "nowMs"`,
+  );
+  await migrationPool.query(
+    `INSERT INTO "ql3"."runs" (
+       id, project_id, task_id, task_revision, trigger_type,
+       execution_origin, execution_owner, status, version, event_sequence,
+       created_at_ms, started_at_ms, cancel_requested_at_ms, cancel_reason
+     ) VALUES (
+       $1, 'default', 'ha-cancel-task', 'v1', 'manual', 'api', 'runtime',
+       'running', 2, 0, $2, $2, $3, 'user'
+     )`,
+    [FIXTURE.runId, FIXTURE.requestedAtMs - 100, FIXTURE.requestedAtMs],
+  );
+  await migrationPool.query(
+    `INSERT INTO "ql3"."run_attempts" (
+       id, run_id, attempt, status, executor_type, callback_sequence,
+       created_at_ms
+     ) VALUES ($1, $2, 1, 'running', 'local_process', 0, $3)`,
+    [FIXTURE.attemptId, FIXTURE.runId, FIXTURE.requestedAtMs - 50],
+  );
+
+  const [firstDatabase, secondDatabase] = await Promise.all([
+    openRuntime(runtimeConnectionString, 'ql3-ha-cancel-primary-a'),
+    openRuntime(runtimeConnectionString, 'ql3-ha-cancel-primary-b'),
+  ]);
+  try {
+    const first = new PostgresCancellationDispatchRepository(
+      firstDatabase.pool,
+    );
+    const second = new PostgresCancellationDispatchRepository(
+      secondDatabase.pool,
+    );
+    const candidate = {
+      runId: FIXTURE.runId,
+      attemptId: FIXTURE.attemptId,
+      requestedAtMs: FIXTURE.requestedAtMs,
+      leaseDurationMs: 30_000,
+    };
+    const claims = await Promise.all([
+      first.claim({
+        ...candidate,
+        owner: 'ha-cancel-primary-a',
+        leaseToken: 'ha-cancel-lease-a',
+      }),
+      second.claim({
+        ...candidate,
+        owner: 'ha-cancel-primary-b',
+        leaseToken: 'ha-cancel-lease-b',
+      }),
+    ]);
+    const claimed = claims.find((result) => result.status === 'claimed');
+    const competing = claims.find((result) => result.status !== 'claimed');
+    assert.equal(claimed?.status, 'claimed');
+    assert.equal(competing?.status, 'leased');
+    assert.equal(
+      claimed.dispatch.createdAtMs >= Number(beforeClock.rows[0].nowMs),
+      true,
+    );
+    const storedLease = await migrationPool.query(
+      `SELECT lease_token_digest AS "leaseTokenDigest"
+         FROM "ql3"."run_cancellation_dispatches" WHERE run_id = $1`,
+      [FIXTURE.runId],
+    );
+    assert.equal(
+      storedLease.rows[0].leaseTokenDigest,
+      digestCancellationDispatchLeaseToken(claimed.leaseToken),
+    );
+    assert.notEqual(storedLease.rows[0].leaseTokenDigest, claimed.leaseToken);
+
+    await migrationPool.query(
+      `UPDATE "ql3"."run_cancellation_dispatches"
+          SET lease_expires_at_ms = 0 WHERE run_id = $1`,
+      [FIXTURE.runId],
+    );
+    const takeover = await second.claim({
+      ...candidate,
+      owner: 'ha-cancel-takeover',
+      leaseToken: 'ha-cancel-takeover-token',
+    });
+    assert.equal(takeover.status, 'claimed');
+    assert.equal(takeover.dispatch.version, 2);
+    await assert.rejects(
+      first.recordResult({
+        runId: FIXTURE.runId,
+        attemptId: FIXTURE.attemptId,
+        owner: claimed.dispatch.leaseOwner,
+        leaseToken: claimed.leaseToken,
+        expectedVersion: claimed.dispatch.version,
+        result: 'already_exited',
+        eventId: FIXTURE.terminalEventId,
+      }),
+      CancellationDispatchFenceRejectedError,
+    );
+
+    const retry = await second.recordResult({
+      runId: FIXTURE.runId,
+      attemptId: FIXTURE.attemptId,
+      owner: 'ha-cancel-takeover',
+      leaseToken: 'ha-cancel-takeover-token',
+      expectedVersion: takeover.dispatch.version,
+      result: 'dispatch_error',
+      retryDelayMs: 60_000,
+      eventId: FIXTURE.retryEventId,
+    });
+    assert.equal(retry.dispatch.status, 'retry_wait');
+    assert.equal(
+      (await first.claim({
+        ...candidate,
+        owner: 'ha-cancel-early',
+        leaseToken: 'ha-cancel-early-token',
+      })).status,
+      'not_due',
+    );
+    await migrationPool.query(
+      `UPDATE "ql3"."run_cancellation_dispatches"
+          SET next_attempt_at_ms = 0 WHERE run_id = $1`,
+      [FIXTURE.runId],
+    );
+    const finalLease = await first.claim({
+      ...candidate,
+      owner: 'ha-cancel-final',
+      leaseToken: 'ha-cancel-final-token',
+    });
+    assert.equal(finalLease.status, 'claimed');
+    assert.equal(finalLease.dispatch.dispatchCount, 3);
+    const terminal = await first.recordResult({
+      runId: FIXTURE.runId,
+      attemptId: FIXTURE.attemptId,
+      owner: 'ha-cancel-final',
+      leaseToken: 'ha-cancel-final-token',
+      expectedVersion: finalLease.dispatch.version,
+      result: 'already_exited',
+      eventId: FIXTURE.terminalEventId,
+    });
+    assert.equal(terminal.dispatch.status, 'dispatched');
+    assert.equal(terminal.event.sequence, 2);
+    await migrationPool.query(
+      `WITH observed AS (
+         SELECT floor(extract(epoch FROM transaction_timestamp()) * 1000)::bigint
+                  AS at_ms
+       ), closed_attempt AS (
+         UPDATE "ql3"."run_attempts"
+            SET status = 'cancelled', finished_at_ms = observed.at_ms
+           FROM observed
+          WHERE id = $2 AND run_id = $1
+          RETURNING id
+       ), closed_run AS (
+         UPDATE "ql3"."runs"
+            SET status = 'cancelled', version = version + 1,
+                event_sequence = event_sequence + 1,
+                finished_at_ms = observed.at_ms
+           FROM observed
+          WHERE id = $1
+            AND EXISTS (SELECT 1 FROM closed_attempt)
+          RETURNING id, event_sequence, finished_at_ms
+       )
+       INSERT INTO "ql3"."run_events" (
+         id, run_id, sequence, type, dedupe_key, actor_type, actor_id,
+         attempt_id, payload, created_at_ms
+       )
+       SELECT $3, id, event_sequence, 'run.cancelled',
+              'ha-cancel-fixture-settled', 'system', 'ha-contract', $2,
+              '{"reason":"fixture_settled"}'::jsonb, finished_at_ms
+         FROM closed_run`,
+      [FIXTURE.runId, FIXTURE.attemptId, FIXTURE.settledEventId],
+    );
+    const beforePromotion = await cancellationDispatchFacts(migrationPool);
+    assert.deepEqual(beforePromotion, {
+      status: 'dispatched',
+      version: 5,
+      dispatchCount: 3,
+      leaseTokenDigest: null,
+      lastResult: 'already_exited',
+      runVersion: 5,
+      eventSequence: 3,
+      eventCount: 3,
+    });
+    return {
+      fixture: FIXTURE,
+      beforePromotion,
+      databaseTimed: true,
+      crossPoolClaimExactlyOnce: true,
+      rawLeaseTokenNeverStored: true,
+      expiredLeaseTakenOver: true,
+      staleLeaseFenced: true,
+      retryDeferredUntilDue: true,
+      replicatedBeforePromotion: false,
+      survivedPromotion: false,
+    };
+  } finally {
+    await Promise.allSettled([
+      firstDatabase.close(),
+      secondDatabase.close(),
+    ]);
+  }
+}
+
+async function verifyPromotedCancellationDispatchHaFixture(options) {
+  const { promotedPool, runtimeConnectionString, evidence } = options;
+  const afterPromotion = await cancellationDispatchFacts(promotedPool);
+  assert.deepEqual(afterPromotion, evidence.beforePromotion);
+  const runtimeDatabase = await openRuntime(
+    runtimeConnectionString,
+    'ql3-ha-cancel-promoted',
+  );
+  try {
+    const dispatch = await new PostgresCancellationDispatchRepository(
+      runtimeDatabase.pool,
+    ).findByRunId(FIXTURE.runId);
+    assert.equal(dispatch?.status, 'dispatched');
+    assert.equal(dispatch?.dispatchCount, 3);
+    assert.equal(dispatch?.leaseTokenDigest, undefined);
+  } finally {
+    await runtimeDatabase.close();
+  }
+  evidence.afterPromotion = afterPromotion;
+  evidence.survivedPromotion = true;
+  return evidence;
+}
+
+module.exports = {
+  cancellationDispatchFacts,
+  persistCancellationDispatchHaFixture,
+  verifyPromotedCancellationDispatchHaFixture,
+};
diff --git a/scripts/ql3-postgres-ha-contract.cjs b/scripts/ql3-postgres-ha-contract.cjs
index 13084286..24da821c 100644
--- a/scripts/ql3-postgres-ha-contract.cjs
+++ b/scripts/ql3-postgres-ha-contract.cjs
@@ -374,6 +374,11 @@ const {
   persistNonEmptyToolResultRetirement,
   verifyPromotedNonEmptyToolResult,
 } = require('./ql3-postgres-ha-tool-result-fixture.cjs');
+const {
+  cancellationDispatchFacts,
+  persistCancellationDispatchHaFixture,
+  verifyPromotedCancellationDispatchHaFixture,
+} = require('./ql3-postgres-ha-cancellation-dispatch-fixture.cjs');
 const {
   activateInstall,
   pluginPackageTaskReconciliationFixture,
@@ -11399,6 +11404,7 @@ async function main(argv = process.argv.slice(2)) {
   let runAttemptLogRetentionEvidence;
   let runAttemptLogRetention;
   let manualRunRetry;
+  let cancellationDispatch;
   const startedAt = performance.now();
   const timeline = [];
   let report;
@@ -11772,6 +11778,18 @@ async function main(argv = process.argv.slice(2)) {
       state: 'durable_identity_keyset_ledger_verified',
       atMs: Number((performance.now() - startedAt).toFixed(3)),
     });
+    cancellationDispatch = await persistCancellationDispatchHaFixture({
+      migrationPool: primaryDatabase.pool,
+      runtimeConnectionString: databaseUrl(
+        RUNTIME_USER,
+        RUNTIME_PASSWORD,
+        primaryPort,
+      ),
+    });
+    timeline.push({
+      state: 'cancellation_dispatch_fenced_on_primary',
+      atMs: Number((performance.now() - startedAt).toFixed(3)),
+    });
     await primaryDatabase.pool.query(
       `CREATE ROLE ${REPLICATION_USER} WITH REPLICATION LOGIN`,
     );
@@ -12409,6 +12427,14 @@ async function main(argv = process.argv.slice(2)) {
       );
       return marker.rows[0]?.count === 1 ? marker.rows[0] : null;
     }, 'pre-promotion marker WAL replay');
+    await waitFor(async () => {
+      const facts = await cancellationDispatchFacts(standbyDatabase.pool);
+      return JSON.stringify(facts) ===
+        JSON.stringify(cancellationDispatch.beforePromotion)
+        ? facts
+        : null;
+    }, 'cancellation dispatch WAL replay');
+    cancellationDispatch.replicatedBeforePromotion = true;
     const projectToolSnapshotProjectId = 'ha-tool-snapshot';
     await primaryDatabase.pool.query(
       `INSERT INTO "ql3"."projects" (
@@ -12993,6 +13019,15 @@ async function main(argv = process.argv.slice(2)) {
     modelInvocationFeaturePromotion.afterPromotion =
       promotedModelInvocationFeature;
     modelInvocationFeaturePromotion.survivedPromotion = true;
+    await verifyPromotedCancellationDispatchHaFixture({
+      promotedPool: promotedDatabase.pool,
+      runtimeConnectionString: databaseUrl(
+        RUNTIME_USER,
+        RUNTIME_PASSWORD,
+        standbyPort,
+      ),
+      evidence: cancellationDispatch,
+    });
     const promotedCopilotFailureDiagnosisAdmission =
       await copilotFailureDiagnosisAdmissionFacts(
         promotedDatabase.pool,
@@ -13788,8 +13823,10 @@ async function main(argv = process.argv.slice(2)) {
     ]);
     const sideEffects = await promotedDatabase.pool.query(
       `SELECT
-         (SELECT count(*)::integer FROM "ql3"."runs") AS runs,
-         (SELECT count(*)::integer FROM "ql3"."run_events") AS "runEvents",
+         (SELECT count(*)::integer FROM "ql3"."runs"
+           WHERE id <> $3) AS runs,
+         (SELECT count(*)::integer FROM "ql3"."run_events"
+           WHERE run_id <> $3) AS "runEvents",
          (SELECT count(*)::integer
             FROM "ql3"."runs"
            WHERE id IN ($1, $2)) AS "diagnosisReadRuns",
@@ -13801,6 +13838,7 @@ async function main(argv = process.argv.slice(2)) {
       [
         copilotFailureDiagnosisRead.sourceRunId,
         copilotFailureDiagnosisRead.runId,
+        cancellationDispatch.fixture.runId,
       ],
     );
     assert.deepEqual(sideEffects.rows, [
@@ -13879,6 +13917,7 @@ async function main(argv = process.argv.slice(2)) {
         unexpectedDomainSideEffects: 0,
       },
       manualRunRetry: manualRunRetry.report,
+      cancellationDispatch,
       transactionWindows: {
         ambiguousCommit: {
           clientObservedFailure: ambiguousCommitClientRejected,
@@ -13934,6 +13973,16 @@ async function main(argv = process.argv.slice(2)) {
       runAttemptLogRetention,
       timeline,
       gates: {
+        cancellationDispatchUsesDatabaseTimeAndExactFences:
+          cancellationDispatch.databaseTimed &&
+          cancellationDispatch.crossPoolClaimExactlyOnce &&
+          cancellationDispatch.rawLeaseTokenNeverStored &&
+          cancellationDispatch.expiredLeaseTakenOver &&
+          cancellationDispatch.staleLeaseFenced &&
+          cancellationDispatch.retryDeferredUntilDue,
+        cancellationDispatchReplicatesAndSurvivesPromotion:
+          cancellationDispatch.replicatedBeforePromotion &&
+          cancellationDispatch.survivedPromotion,
         runAttemptLogRetentionLeaseTakeoverAndTombstoneConverge:
           runAttemptLogRetention.replicatedBeforePromotion &&
           runAttemptLogRetention.stalePrimarySettlementFenced &&
diff --git a/test/back/cancellationDispatchRepository.test.cjs b/test/back/cancellationDispatchRepository.test.cjs
index ab5ea1bd..ed69ae99 100644
--- a/test/back/cancellationDispatchRepository.test.cjs
+++ b/test/back/cancellationDispatchRepository.test.cjs
@@ -61,9 +61,15 @@ async function createRepository() {
     logger: { info() {} },
   });
   databases.push(database);
+  let nowMs = 1_750_000_000_100;
   return {
     database,
-    repository: new LegacySequelizeCancellationDispatchRepository(database),
+    repository: new LegacySequelizeCancellationDispatchRepository(database, {
+      clock: () => nowMs,
+    }),
+    setNow(value) {
+      nowMs = value;
+    },
   };
 }
 
@@ -113,7 +119,6 @@ function claim(candidate, overrides = {}) {
     ...candidate,
     owner: 'worker-a',
     leaseToken: 'lease-a',
-    nowMs: candidate.requestedAtMs,
     leaseDurationMs: 50,
     ...overrides,
   };
@@ -124,7 +129,7 @@ afterEach(async () => {
 });
 
 test('fences two workers and lets a second worker recover an expired lease', async () => {
-  const { database, repository } = await createRepository();
+  const { database, repository, setNow } = await createRepository();
   const candidate = await insertCandidate(database);
 
   const first = await repository.claim(claim(candidate));
@@ -133,21 +138,21 @@ test('fences two workers and lets a second worker recover an expired lease', asy
   assert.equal(first.dispatch.dispatchCount, 1);
   assert.equal(first.dispatch.leaseOwner, 'worker-a');
 
+  setNow(candidate.requestedAtMs + 25);
   const competing = await repository.claim(
     claim(candidate, {
       owner: 'worker-b',
       leaseToken: 'lease-b',
-      nowMs: candidate.requestedAtMs + 25,
     }),
   );
   assert.equal(competing.status, 'leased');
   assert.equal(competing.dispatch.leaseOwner, 'worker-a');
 
+  setNow(candidate.requestedAtMs + 50);
   const recovered = await repository.claim(
     claim(candidate, {
       owner: 'worker-b',
       leaseToken: 'lease-b',
-      nowMs: candidate.requestedAtMs + 50,
     }),
   );
   assert.equal(recovered.status, 'claimed');
@@ -155,6 +160,7 @@ test('fences two workers and lets a second worker recover an expired lease', asy
   assert.equal(recovered.dispatch.dispatchCount, 2);
   assert.equal(recovered.dispatch.leaseOwner, 'worker-b');
 
+  setNow(candidate.requestedAtMs + 51);
   await assert.rejects(
     repository.recordResult({
       runId: candidate.runId,
@@ -163,12 +169,12 @@ test('fences two workers and lets a second worker recover an expired lease', asy
       leaseToken: 'lease-a',
       expectedVersion: 1,
       result: 'termination_requested',
-      atMs: candidate.requestedAtMs + 51,
       eventId: nextId(),
     }),
     CancellationDispatchFenceRejectedError,
   );
 
+  setNow(candidate.requestedAtMs + 52);
   const recorded = await repository.recordResult({
     runId: candidate.runId,
     attemptId: candidate.attemptId,
@@ -176,7 +182,6 @@ test('fences two workers and lets a second worker recover an expired lease', asy
     leaseToken: 'lease-b',
     expectedVersion: recovered.dispatch.version,
     result: 'termination_requested',
-    atMs: candidate.requestedAtMs + 52,
     eventId: nextId(),
   });
   assert.equal(recorded.dispatch.status, 'dispatched');
@@ -188,22 +193,23 @@ test('fences two workers and lets a second worker recover an expired lease', asy
     result: 'termination_requested',
   });
 
+  setNow(candidate.requestedAtMs + 100);
   const terminal = await repository.claim(
     claim(candidate, {
       owner: 'worker-c',
       leaseToken: 'lease-c',
-      nowMs: candidate.requestedAtMs + 100,
     }),
   );
   assert.equal(terminal.status, 'dispatched');
 });
 
 test('persists retry backoff and only reclaims when it becomes due', async () => {
-  const { database, repository } = await createRepository();
+  const { database, repository, setNow } = await createRepository();
   const candidate = await insertCandidate(database);
   const leased = await repository.claim(claim(candidate));
   const retryAtMs = candidate.requestedAtMs + 1_000;
 
+  setNow(candidate.requestedAtMs + 1);
   const failed = await repository.recordResult({
     runId: candidate.runId,
     attemptId: candidate.attemptId,
@@ -211,33 +217,33 @@ test('persists retry backoff and only reclaims when it becomes due', async () =>
     leaseToken: 'lease-a',
     expectedVersion: leased.dispatch.version,
     result: 'dispatch_error',
-    atMs: candidate.requestedAtMs + 1,
-    nextAttemptAtMs: retryAtMs,
+    retryDelayMs: retryAtMs - (candidate.requestedAtMs + 1),
     eventId: nextId(),
   });
   assert.equal(failed.dispatch.status, 'retry_wait');
   assert.equal(failed.dispatch.nextAttemptAtMs, retryAtMs);
   assert.equal(failed.event.type, 'run.cancel_dispatch_failed');
 
+  setNow(retryAtMs - 1);
   const early = await repository.claim(
     claim(candidate, {
       owner: 'worker-b',
       leaseToken: 'lease-b',
-      nowMs: retryAtMs - 1,
     }),
   );
   assert.equal(early.status, 'not_due');
 
+  setNow(retryAtMs);
   const retry = await repository.claim(
     claim(candidate, {
       owner: 'worker-b',
       leaseToken: 'lease-b',
-      nowMs: retryAtMs,
     }),
   );
   assert.equal(retry.status, 'claimed');
   assert.equal(retry.dispatch.dispatchCount, 2);
 
+  setNow(retryAtMs + 1);
   const missingController = await repository.recordResult({
     runId: candidate.runId,
     attemptId: candidate.attemptId,
@@ -245,8 +251,7 @@ test('persists retry backoff and only reclaims when it becomes due', async () =>
     leaseToken: 'lease-b',
     expectedVersion: retry.dispatch.version,
     result: 'controller_missing',
-    atMs: retryAtMs + 1,
-    nextAttemptAtMs: retryAtMs + 2_000,
+    retryDelayMs: 1_999,
     eventId: nextId(),
   });
   assert.equal(missingController.dispatch.status, 'retry_wait');
@@ -257,7 +262,7 @@ test('persists retry backoff and only reclaims when it becomes due', async () =>
 });
 
 test('fails closed for stale candidates and conflicting Attempt bindings', async () => {
-  const { database, repository } = await createRepository();
+  const { database, repository, setNow } = await createRepository();
   const stale = await insertCandidate(database, { runStatus: 'succeeded' });
   assert.deepEqual(await repository.claim(claim(stale)), {
     status: 'not_eligible',
@@ -278,6 +283,7 @@ test('fails closed for stale candidates and conflicting Attempt bindings', async
       created_at_ms: candidate.requestedAtMs + 1,
     },
   ]);
+  setNow(candidate.requestedAtMs + 50);
   await assert.rejects(
     repository.claim(
       claim(
@@ -285,7 +291,6 @@ test('fails closed for stale candidates and conflicting Attempt bindings', async
         {
           owner: 'worker-b',
           leaseToken: 'lease-b',
-          nowMs: candidate.requestedAtMs + 50,
         },
       ),
     ),
@@ -294,7 +299,7 @@ test('fails closed for stale candidates and conflicting Attempt bindings', async
 });
 
 test('rolls back dispatch state and Run version when event append fails', async () => {
-  const { database, repository } = await createRepository();
+  const { database, repository, setNow } = await createRepository();
   const candidate = await insertCandidate(database);
   const leased = await repository.claim(claim(candidate));
   const duplicateEventId = nextId();
@@ -311,6 +316,7 @@ test('rolls back dispatch state and Run version when event append fails', async
     },
   ]);
 
+  setNow(candidate.requestedAtMs + 1);
   await assert.rejects(
     repository.recordResult({
       runId: candidate.runId,
@@ -319,7 +325,6 @@ test('rolls back dispatch state and Run version when event append fails', async
       leaseToken: 'lease-a',
       expectedVersion: leased.dispatch.version,
       result: 'already_exited',
-      atMs: candidate.requestedAtMs + 1,
       eventId: duplicateEventId,
     }),
   );
@@ -336,6 +341,7 @@ test('rolls back dispatch state and Run version when event append fails', async
   );
   assert.deepEqual(run, { version: 2, event_sequence: 0 });
 
+  setNow(candidate.requestedAtMs + 2);
   const recovered = await repository.recordResult({
     runId: candidate.runId,
     attemptId: candidate.attemptId,
@@ -343,7 +349,6 @@ test('rolls back dispatch state and Run version when event append fails', async
     leaseToken: 'lease-a',
     expectedVersion: leased.dispatch.version,
     result: 'already_exited',
-    atMs: candidate.requestedAtMs + 2,
     eventId: nextId(),
   });
   assert.equal(recovered.dispatch.status, 'dispatched');
@@ -439,7 +444,6 @@ test('fails closed instead of reclaiming a corrupt persisted lease', async () =>
       claim(candidate, {
         owner: 'worker-b',
         leaseToken: 'lease-b',
-        nowMs: candidate.requestedAtMs,
       }),
     ),
     CancellationDispatchRepositoryError,
diff --git a/test/back/primaryCancellationDispatcher.test.cjs b/test/back/primaryCancellationDispatcher.test.cjs
index 6168df84..3b0c5795 100644
--- a/test/back/primaryCancellationDispatcher.test.cjs
+++ b/test/back/primaryCancellationDispatcher.test.cjs
@@ -39,6 +39,7 @@ function fakeDispatchRepository(overrides = {}) {
       if (overrides.claim) return overrides.claim(command);
       return {
         status: 'claimed',
+        leaseToken: command.leaseToken,
         dispatch: {
           runId: command.runId,
           attemptId: command.attemptId,
@@ -46,10 +47,10 @@ function fakeDispatchRepository(overrides = {}) {
           version: 1,
           dispatchCount: 1,
           leaseOwner: command.owner,
-          leaseToken: command.leaseToken,
-          leaseExpiresAtMs: command.nowMs + command.leaseDurationMs,
-          createdAtMs: command.nowMs,
-          updatedAtMs: command.nowMs,
+          leaseTokenDigest: 'a'.repeat(64),
+          leaseExpiresAtMs: NOW_MS + command.leaseDurationMs,
+          createdAtMs: NOW_MS,
+          updatedAtMs: NOW_MS,
         },
       };
     },
@@ -60,12 +61,12 @@ function fakeDispatchRepository(overrides = {}) {
         dispatch: {
           runId: command.runId,
           attemptId: command.attemptId,
-          status: command.nextAttemptAtMs ? 'retry_wait' : 'dispatched',
+          status: command.retryDelayMs ? 'retry_wait' : 'dispatched',
           version: command.expectedVersion + 1,
           dispatchCount: 1,
           lastResult: command.result,
           createdAtMs: NOW_MS,
-          updatedAtMs: command.atMs,
+          updatedAtMs: NOW_MS,
         },
         event: {
           id: command.eventId,
@@ -74,7 +75,7 @@ function fakeDispatchRepository(overrides = {}) {
           type: 'fixture',
           actorType: 'worker',
           payload: {},
-          createdAtMs: command.atMs,
+          createdAtMs: NOW_MS,
         },
       };
     },
@@ -88,7 +89,6 @@ function dispatcherOptions(overrides = {}) {
     leaseDurationMs: 100,
     retryBaseMs: 1_000,
     retryMaxMs: 8_000,
-    clock: () => NOW_MS,
     createId: () => `019f71d0-0000-7000-8000-${String(++id).padStart(12, '0')}`,
     ...overrides,
   };
@@ -149,7 +149,7 @@ test('leases before signalling and durably classifies every controller result',
             version: 3,
             dispatchCount: 2,
             leaseOwner: 'worker-b',
-            leaseToken: 'other-lease',
+            leaseTokenDigest: 'b'.repeat(64),
             leaseExpiresAtMs: NOW_MS + 1_000,
             createdAtMs: NOW_MS - 5_000,
             updatedAtMs: NOW_MS - 100,
@@ -158,6 +158,7 @@ test('leases before signalling and durably classifies every controller result',
       }
       return {
         status: 'claimed',
+        leaseToken: command.leaseToken,
         dispatch: {
           runId: command.runId,
           attemptId: command.attemptId,
@@ -165,10 +166,10 @@ test('leases before signalling and durably classifies every controller result',
           version: 1,
           dispatchCount: 1,
           leaseOwner: command.owner,
-          leaseToken: command.leaseToken,
-          leaseExpiresAtMs: command.nowMs + command.leaseDurationMs,
-          createdAtMs: command.nowMs,
-          updatedAtMs: command.nowMs,
+          leaseTokenDigest: 'a'.repeat(64),
+          leaseExpiresAtMs: NOW_MS + command.leaseDurationMs,
+          createdAtMs: NOW_MS,
+          updatedAtMs: NOW_MS,
         },
       };
     },
@@ -243,8 +244,8 @@ test('leases before signalling and durably classifies every controller result',
   );
   assert.equal(
     dispatches.results.find((result) => result.result === 'dispatch_error')
-      .nextAttemptAtMs,
-    NOW_MS + 1_000,
+      .retryDelayMs,
+    1_000,
   );
 });
 
diff --git a/test/back/ql3PackageBoundaryAudit.test.cjs b/test/back/ql3PackageBoundaryAudit.test.cjs
index e890eb15..ee542dcc 100644
--- a/test/back/ql3PackageBoundaryAudit.test.cjs
+++ b/test/back/ql3PackageBoundaryAudit.test.cjs
@@ -299,10 +299,10 @@ test('current QL3 workspace has exactly eighteen reviewed package boundaries', (
       rootSourceFileRoles: runtimeCore.rootSourceFileRoles,
     },
     {
-      sourceFiles: 168,
+      sourceFiles: 169,
       rootSourceFiles: 1,
       rootSourceLines: 160,
-      nestedSourceFiles: 167,
+      nestedSourceFiles: 168,
       rootSourceFileRoles: { 'index.ts': 'public_export' },
     },
   );
@@ -421,10 +421,10 @@ test('current QL3 workspace has exactly eighteen reviewed package boundaries', (
       rootSourceFileRoles: clusterPostgres.rootSourceFileRoles,
     },
     {
-      sourceFiles: 168,
+      sourceFiles: 170,
       rootSourceFiles: 1,
       rootSourceLines: 126,
-      nestedSourceFiles: 167,
+      nestedSourceFiles: 169,
       rootSourceFileRoles: { 'index.ts': 'public_export' },
     },
   );