diff --git a/deepseek-no-think-proxy.mjs b/deepseek-no-think-proxy.mjs
index 5db1b28..2310248 100644
--- a/deepseek-no-think-proxy.mjs
+++ b/deepseek-no-think-proxy.mjs
@@ -6,6 +6,7 @@ import { Agent, fetch as undiciFetch } from 'undici';
 export const DEFAULT_DEEPSEEK_NO_THINK_PORT = 18036;
 export const DEFAULT_DEEPSEEK_UPSTREAM = 'https://api.deepseek.com';
 export const DEFAULT_MOONSHOT_UPSTREAM = 'https://api.moonshot.cn';
+export const DEEPSEEK_COMPAT_CONTRACT_VERSION = 1;
 
 const insecureDispatcher = new Agent({
   connect: { rejectUnauthorized: false },
@@ -256,6 +257,8 @@ export function createDeepseekNoThinkProxy({
       res.writeHead(200, { 'Content-Type': 'application/json' });
       res.end(JSON.stringify({
         ok: true,
+        contractVersion: DEEPSEEK_COMPAT_CONTRACT_VERSION,
+        deepseekThinking: 'disabled',
         upstream: normalizedUpstream,
         moonshotUpstream: normalizedMoonshotUpstream,
       }));
diff --git a/deepseek-no-think-proxy.test.mjs b/deepseek-no-think-proxy.test.mjs
index 72a3481..356ebef 100644
--- a/deepseek-no-think-proxy.test.mjs
+++ b/deepseek-no-think-proxy.test.mjs
@@ -1,6 +1,7 @@
 import assert from 'node:assert/strict';
 import test from 'node:test';
 import {
+  DEEPSEEK_COMPAT_CONTRACT_VERSION,
   decodedUpstreamResponseHeaders,
   deepseekDisableThinkingEnabled,
   flattenLocalJsonSchemaRefs,
@@ -10,6 +11,7 @@ import {
   resolveDeepseekNoThinkProxyBaseUrl,
   resolveMoonshotCompatProxyBaseUrl,
   sanitizeMoonshotToolSchemas,
+  startDeepseekNoThinkProxy,
 } from './deepseek-no-think-proxy.mjs';
 
 test('injectDeepseekThinkingDisabled adds thinking.disabled when absent', () => {
@@ -168,3 +170,22 @@ test('decodedUpstreamResponseHeaders drops stale compression metadata', () => {
     'content-type': 'text/event-stream',
   });
 });
+
+test('compatibility proxy health identifies the enforced production contract', async (t) => {
+  const server = await startDeepseekNoThinkProxy({
+    host: '127.0.0.1',
+    port: 0,
+    logger: { info() {}, warn() {}, error() {} },
+  });
+  t.after(() => new Promise((resolve) => server.close(resolve)));
+  const address = server.address();
+  const response = await fetch(`http://127.0.0.1:${address.port}/health`);
+  assert.equal(response.status, 200);
+  assert.deepEqual(await response.json(), {
+    ok: true,
+    contractVersion: DEEPSEEK_COMPAT_CONTRACT_VERSION,
+    deepseekThinking: 'disabled',
+    upstream: 'https://api.deepseek.com',
+    moonshotUpstream: 'https://api.moonshot.cn',
+  });
+});
diff --git a/docs/release-canary-103.md b/docs/release-canary-103.md
index 9942c3c..3153e4c 100644
--- a/docs/release-canary-103.md
+++ b/docs/release-canary-103.md
@@ -11,6 +11,7 @@ Portal 的首个生产动作必须是用户级灰度，不能直接整包替换
 | 灰度边缘隧道 | `105 127.0.0.1:19082` | 反向 SSH 到 103 的 18082；不复用已退役的 19081 链路 |
 | 候选 Portal | `127.0.0.1:18081` | 独立、无源码 runtime；使用被动运行时模式 |
 | 候选 goosed | `127.0.0.1:18015` | 独立容器并挂载候选 runtime，不重建稳定 9 个容器 |
+| DeepSeek 兼容代理 | `103 0.0.0.0:18036` | 仅供宿主机和候选容器使用；不接入 105 或公网入口 |
 
 候选 Portal 通过 `MEMIND_PORTAL_H5_ROOT` 共享经审计的持久数据和数据库，但
 `MEMIND_RUNTIME_ROLE=candidate` 会禁止重复启动 MindSpace、Plaza、提醒、订阅续期和
@@ -23,6 +24,18 @@ Agent 恢复扫描等单例后台任务。
 `Failed to add extension` 和宿主机绝对路径的 `MODULE_NOT_FOUND`，应先核对候选
 进程环境与 `/opt/portal` 容器挂载，禁止把宿主机文件复制进容器临时修补。
 
+DeepSeek V4 的工具轮次还必须经过候选 runtime 中的
+`deepseek-no-think-proxy.mjs`。候选启动脚本必须强制
+`MEMIND_DEEPSEEK_DISABLE_THINKING=1`，并把 goosed 自定义 provider 指向
+`http://host.docker.internal:18036/v1`。该代理通过独立 LaunchAgent 管理；
+发布必须同时验证 `/health` 的兼容契约和候选容器到该地址的连通性。灰度路由器把
+该健康地址纳入候选健康闭包，代理掉线时必须自动回落稳定 Portal。
+
+若日志出现
+`The reasoning_content in the thinking mode must be passed back to the API.`，
+说明 DeepSeek 请求绕过了兼容契约。禁止只在线补环境变量：必须检查 artifact、
+LaunchAgent、Portal provider 同步和路由器依赖健康配置是否属于同一 release。
+
 ## 身份和回落规则
 
 - `john`：按数据库中的唯一用户名或用户 ID 匹配。
@@ -32,6 +45,7 @@ Agent 恢复扫描等单例后台任务。
 - 微信回调通过 `FromUserName` 和 `h5_user_wechat_identities` 只读解析到绑定账号，再用唯一账号标识匹配。
 - 未命中、无身份、过期/撤销会话、数据库异常：走稳定版本。
 - 候选 `/api/status` 不健康：自动走稳定版本。
+- DeepSeek 兼容代理不健康：自动走稳定版本。
 - SSE、附件、公开页和普通 API 均由同一反向代理转发；微信 XML body 必须原样保留。
 
 ## 发布入口
@@ -49,12 +63,13 @@ bash scripts/release-portal-canary-prod.sh --yes
 2. 执行 103 只读预检。
 3. 上传经过验证的候选包。
 4. 创建稳定 live 全量备份、持久目录备份和 105 两份活动 nginx 配置备份，并校验完整性。
-5. 启动独立候选 goosed、候选 Portal 和灰度路由器。
-6. 验证不可变身份配置、稳定/候选健康和路由器诊断。
-7. 启动独立的 `105:19082 -> 103:18082` 灰度隧道并从 105 验证。
-8. 短暂阻止新 Agent Run，排空活动任务。
-9. 逐文件原子替换、验证并 reload 105 nginx，把活动上游从 `58.38.22.103:8081` 切到 `127.0.0.1:19082`。
-10. 主动停止候选，证明目标身份会自动回落稳定版，再恢复候选。
+5. 启动独立候选 goosed 和 DeepSeek 兼容代理，验证兼容契约及容器连通性。
+6. 启动候选 Portal 和灰度路由器。
+7. 验证不可变身份配置、稳定/候选/依赖健康和路由器诊断。
+8. 启动独立的 `105:19082 -> 103:18082` 灰度隧道并从 105 验证。
+9. 短暂阻止新 Agent Run，排空活动任务。
+10. 逐文件原子替换、验证并 reload 105 nginx，把活动上游从 `58.38.22.103:8081` 切到 `127.0.0.1:19082`。
+11. 主动停止候选，证明目标身份会自动回落稳定版，再恢复候选。
 
 任一步失败都会把 105 nginx 恢复到稳定 `58.38.22.103:8081`，停止灰度隧道和候选服务，
 并保留候选目录与备份证据。活动 nginx 配置变更只能由已提交的发布脚本执行，禁止在线手改。
@@ -68,7 +83,7 @@ bash scripts/rollback-portal-canary-prod.sh --yes
 回滚只执行以下动作：
 
 - 把 105 两份活动 nginx 上游恢复到稳定 Portal `58.38.22.103:8081` 并验证 reload。
-- 停止灰度隧道、灰度路由器、候选 Portal 和候选 goosed。
+- 停止灰度隧道、灰度路由器、候选 Portal、候选 goosed 和 DeepSeek 兼容代理。
 - 清除发布排水标记。
 - 验证稳定 Portal 和 105 HTTPS 入口健康。
 
diff --git a/docs/发包必看.md b/docs/发包必看.md
index c596076..96a446e 100644
--- a/docs/发包必看.md
+++ b/docs/发包必看.md
@@ -210,6 +210,37 @@ Provider 'custom_deepseek' is not configured
 
 注意：DeepSeek API key / provider secret 是运行配置，不应该烘焙进镜像。
 
+### 4.7 DeepSeek 工具轮次兼容必须与生产拓扑一致
+
+DeepSeek V4 思考模式在工具调用后的下一轮要求客户端回传上一轮
+`reasoning_content`。当前 goosed 工具链不能保证完整回传，因此生产候选必须使用
+artifact 内的 `deepseek-no-think-proxy.mjs`，由独立 LaunchAgent 在 `18036`
+启动，并强制候选 Portal 设置：
+
+```bash
+MEMIND_DEEPSEEK_DISABLE_THINKING=1
+MEMIND_DEEPSEEK_NO_THINK_PORT=18036
+MEMIND_GOOSED_HOST_GATEWAY=host.docker.internal
+```
+
+发布不能只看 Portal `/api/status`。还必须验证：
+
+- `http://127.0.0.1:18036/health` 返回兼容契约版本和
+  `deepseekThinking=disabled`；
+- `goosed-prod-canary` 能访问
+  `http://host.docker.internal:18036/health`；
+- 灰度路由器把该地址纳入候选健康闭包；
+- 失败清理和回滚会停止对应 LaunchAgent。
+
+Gate 本地栈和生产候选必须使用同一组开关与进程依赖。若出现：
+
+```text
+The reasoning_content in the thinking mode must be passed back to the API.
+```
+
+说明实际生产请求绕过了兼容契约；即使场景 Gate 全部通过，也必须阻断发布并排查
+环境漂移。
+
 ## 5. goosed-prod 镜像更新必看
 
 当前已验证镜像：
diff --git a/llm-providers.test.mjs b/llm-providers.test.mjs
index c02ac1e..c7597a3 100644
--- a/llm-providers.test.mjs
+++ b/llm-providers.test.mjs
@@ -800,13 +800,13 @@ test('syncProfileToGoosed writes provider, model and secret keys for builtin', a
   );
 });
 
-test('syncProfileToGoosed routes local DeepSeek through the no-thinking proxy', async () => {
+test('syncProfileToGoosed routes explicitly protected production DeepSeek through the compatibility proxy', async () => {
   const previousProfile = process.env.MEMIND_RUNTIME_PROFILE;
   const previousDisableThinking = process.env.MEMIND_DEEPSEEK_DISABLE_THINKING;
   const previousProxyBase = process.env.MEMIND_DEEPSEEK_NO_THINK_BASE_URL;
   const previousGateway = process.env.MEMIND_GOOSED_HOST_GATEWAY;
-  process.env.MEMIND_RUNTIME_PROFILE = 'local';
-  delete process.env.MEMIND_DEEPSEEK_DISABLE_THINKING;
+  process.env.MEMIND_RUNTIME_PROFILE = 'production';
+  process.env.MEMIND_DEEPSEEK_DISABLE_THINKING = '1';
   delete process.env.MEMIND_DEEPSEEK_NO_THINK_BASE_URL;
   process.env.MEMIND_GOOSED_HOST_GATEWAY = 'host.lima.internal';
 
diff --git a/memind-canary-proxy.mjs b/memind-canary-proxy.mjs
index 353011d..c1e9e84 100644
--- a/memind-canary-proxy.mjs
+++ b/memind-canary-proxy.mjs
@@ -244,9 +244,43 @@ function appendForwardedFor(current, remoteAddress) {
   return values.join(', ');
 }
 
+function dependencyHealthRequest(target, timeoutMs) {
+  return new Promise((resolve) => {
+    const request = http.request(
+      {
+        hostname: target.hostname,
+        port: target.port,
+        method: 'GET',
+        path: `${target.pathname}${target.search}`,
+        headers: { connection: 'close' },
+      },
+      (response) => {
+        response.resume();
+        response.once('end', () => resolve(response.statusCode === 200));
+      },
+    );
+    request.setTimeout(timeoutMs, () => request.destroy());
+    request.once('error', () => resolve(false));
+    request.end();
+  });
+}
+
+function normalizeLoopbackHealthTarget(value, label) {
+  const target = new URL(String(value ?? ''));
+  if (
+    target.protocol !== 'http:'
+    || !['127.0.0.1', 'localhost', '::1'].includes(target.hostname)
+  ) {
+    throw new Error(`${label} must be a loopback http URL`);
+  }
+  target.hash = '';
+  return target;
+}
+
 export function createMemindCanaryProxy({
   stableTarget,
   candidateTarget,
+  candidateHealthDependencies = [],
   policy,
   identityResolver,
   diagnosticSecret,
@@ -256,6 +290,8 @@ export function createMemindCanaryProxy({
 } = {}) {
   const stable = normalizeLoopbackTarget(stableTarget, 'stable target');
   const candidate = normalizeLoopbackTarget(candidateTarget, 'candidate target');
+  const candidateDependencies = candidateHealthDependencies.map((value, index) =>
+    normalizeLoopbackHealthTarget(value, `candidate health dependency ${index + 1}`));
   if (!policy) throw new Error('canary proxy requires a routing policy');
   if (!identityResolver) throw new Error('canary proxy requires an identity resolver');
   if (!diagnosticSecret) throw new Error('canary proxy requires a diagnostic secret');
@@ -269,8 +305,13 @@ export function createMemindCanaryProxy({
       return healthCache.healthy;
     }
     if (!healthPromise) {
-      healthPromise = healthRequest(candidate, candidateHealthTimeoutMs, 'candidate')
-        .then((healthy) => {
+      healthPromise = Promise.all([
+        healthRequest(candidate, candidateHealthTimeoutMs, 'candidate'),
+        ...candidateDependencies.map((target) =>
+          dependencyHealthRequest(target, candidateHealthTimeoutMs)),
+      ])
+        .then((results) => {
+          const healthy = results.every(Boolean);
           healthCache = { checkedAt: Date.now(), healthy };
           return healthy;
         })
@@ -539,6 +580,9 @@ async function main() {
     stableTarget: process.env.MEMIND_CANARY_STABLE_URL || 'http://127.0.0.1:8081',
     candidateTarget:
       process.env.MEMIND_CANARY_CANDIDATE_URL || 'http://127.0.0.1:18081',
+    candidateHealthDependencies: csvValues(
+      process.env.MEMIND_CANARY_CANDIDATE_HEALTH_URLS,
+    ),
     policy,
     identityResolver,
     diagnosticSecret: process.env.MEMIND_CANARY_DIAGNOSTIC_SECRET,
diff --git a/memind-canary-proxy.test.mjs b/memind-canary-proxy.test.mjs
index 60af70d..99c7ef3 100644
--- a/memind-canary-proxy.test.mjs
+++ b/memind-canary-proxy.test.mjs
@@ -287,6 +287,54 @@ test('identity lookup errors fail closed to stable', async (t) => {
   assert.equal(response.headers['x-memind-runtime-route'], 'stable');
 });
 
+test('candidate health fails closed when its DeepSeek compatibility dependency is down', async (t) => {
+  const stableServer = upstream('stable');
+  const candidateServer = upstream('candidate');
+  let dependencyHealthy = true;
+  const dependencyServer = http.createServer((req, res) => {
+    res.writeHead(req.url === '/health' && dependencyHealthy ? 200 : 503);
+    res.end();
+  });
+  const stableUrl = await listen(stableServer);
+  const candidateUrl = await listen(candidateServer);
+  const dependencyUrl = await listen(dependencyServer);
+  const proxy = createMemindCanaryProxy({
+    stableTarget: stableUrl,
+    candidateTarget: candidateUrl,
+    candidateHealthDependencies: [`${dependencyUrl}/health`],
+    policy: createCanaryPolicy({ usernames: ['john'] }),
+    identityResolver: {
+      async fromSessionToken() {
+        return { id: 'user-john', username: 'john' };
+      },
+      async fromWechatOpenid() {
+        return null;
+      },
+    },
+    diagnosticSecret: 'diagnostic-secret',
+    candidateHealthTtlMs: 0,
+  });
+  const proxyUrl = await listen(proxy.server);
+  t.after(async () => {
+    await close(proxy.server);
+    await close(stableServer);
+    await close(candidateServer);
+    await close(dependencyServer);
+  });
+
+  const candidate = await request(proxyUrl, {
+    headers: { cookie: 'tkmind_user_session=john-token' },
+  });
+  assert.equal(candidate.headers['x-memind-runtime-route'], 'candidate');
+
+  dependencyHealthy = false;
+  const fallback = await request(proxyUrl, {
+    headers: { cookie: 'tkmind_user_session=john-token' },
+  });
+  assert.equal(fallback.body, 'stable:');
+  assert.equal(fallback.headers['x-memind-runtime-route'], 'stable');
+});
+
 test('candidate health requires the explicit candidate runtime role', async (t) => {
   const stableServer = upstream('stable');
   const wrongRoleServer = upstream('stable');
diff --git a/release-gate/artifact.mjs b/release-gate/artifact.mjs
index 9682e51..095386f 100644
--- a/release-gate/artifact.mjs
+++ b/release-gate/artifact.mjs
@@ -6,6 +6,7 @@ import path from 'node:path';
 export const REQUIRED_PORTAL_RUNTIME_PATHS = Object.freeze([
   'server.mjs',
   'memind-canary-proxy.mjs',
+  'deepseek-no-think-proxy.mjs',
   'wechat-mp.bundle.mjs',
   'mindspace-sandbox-mcp.mjs',
   'tkmind-search-mcp.mjs',
@@ -16,6 +17,7 @@ export const REQUIRED_PORTAL_RUNTIME_PATHS = Object.freeze([
   'scripts/run-memind-portal-prod.sh',
   'scripts/run-memind-portal-candidate.sh',
   'scripts/run-memind-canary-proxy-prod.sh',
+  'scripts/run-deepseek-compat-proxy-candidate.sh',
   'scripts/goosed-canary.compose.yml',
   'scripts/check-mindspace-public-links.mjs',
   'scripts/load-env.mjs',
diff --git a/release-gate/deepseek-production-parity.test.mjs b/release-gate/deepseek-production-parity.test.mjs
new file mode 100644
index 0000000..d75271b
--- /dev/null
+++ b/release-gate/deepseek-production-parity.test.mjs
@@ -0,0 +1,89 @@
+import assert from 'node:assert/strict';
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import test from 'node:test';
+
+import { startDeepseekNoThinkProxy } from '../deepseek-no-think-proxy.mjs';
+
+const ROOT = path.resolve(new URL('..', import.meta.url).pathname);
+
+test('sanitized production tool-round replay reaches DeepSeek with thinking disabled', async (t) => {
+  const forwarded = [];
+  const proxy = await startDeepseekNoThinkProxy({
+    host: '127.0.0.1',
+    port: 0,
+    logger: { info() {}, warn() {}, error() {} },
+    fetchImpl: async (_url, init) => {
+      forwarded.push(JSON.parse(String(init.body)));
+      return new Response(JSON.stringify({
+        choices: [{ message: { role: 'assistant', content: 'synthetic result' } }],
+      }), {
+        status: 200,
+        headers: { 'content-type': 'application/json' },
+      });
+    },
+  });
+  t.after(() => new Promise((resolve) => proxy.close(resolve)));
+  const address = proxy.address();
+
+  const response = await fetch(
+    `http://127.0.0.1:${address.port}/v1/chat/completions`,
+    {
+      method: 'POST',
+      headers: {
+        authorization: 'Bearer synthetic-key',
+        'content-type': 'application/json',
+      },
+      body: JSON.stringify({
+        model: 'deepseek-v4-pro',
+        thinking: { type: 'enabled' },
+        messages: [
+          { role: 'user', content: 'Use the synthetic filesystem tool.' },
+          { role: 'assistant', tool_calls: [{ id: 'call-1', type: 'function' }] },
+          { role: 'tool', tool_call_id: 'call-1', content: 'synthetic file list' },
+        ],
+      }),
+    },
+  );
+
+  assert.equal(response.status, 200);
+  assert.equal(forwarded.length, 1);
+  assert.deepEqual(forwarded[0].thinking, { type: 'disabled' });
+  assert.equal(forwarded[0].messages[2].role, 'tool');
+});
+
+test('Gate, artifact, candidate routing and rollback share one compatibility contract', async () => {
+  const [
+    builder,
+    localStack,
+    candidateRunner,
+    compatRunner,
+    canaryRelease,
+    canaryRollback,
+  ] = await Promise.all([
+    fs.readFile(path.join(ROOT, 'scripts', 'build-portal-runtime.mjs'), 'utf8'),
+    fs.readFile(path.join(ROOT, 'release-gate', 'local-stack.mjs'), 'utf8'),
+    fs.readFile(path.join(ROOT, 'scripts', 'run-memind-portal-candidate.sh'), 'utf8'),
+    fs.readFile(
+      path.join(ROOT, 'scripts', 'run-deepseek-compat-proxy-candidate.sh'),
+      'utf8',
+    ),
+    fs.readFile(path.join(ROOT, 'scripts', 'release-portal-canary-prod.sh'), 'utf8'),
+    fs.readFile(path.join(ROOT, 'scripts', 'rollback-portal-canary-prod.sh'), 'utf8'),
+  ]);
+
+  assert.match(builder, /--outfile=\.runtime\/portal\/deepseek-no-think-proxy\.mjs/);
+  assert.match(
+    localStack,
+    /path\.join\(resolvedPortalRoot, 'deepseek-no-think-proxy\.mjs'\)/,
+  );
+  assert.match(candidateRunner, /export MEMIND_DEEPSEEK_DISABLE_THINKING=1/);
+  assert.match(candidateRunner, /export MEMIND_GOOSED_HOST_GATEWAY=host\.docker\.internal/);
+  assert.match(compatRunner, /source "\$\{STABLE_ROOT\}\/\.env"/);
+  assert.match(compatRunner, /export MEMIND_DEEPSEEK_PROXY_ENTRYPOINT=1/);
+  assert.match(canaryRelease, /run-deepseek-compat-proxy-candidate\.sh/);
+  assert.match(canaryRelease, /MEMIND_CANARY_CANDIDATE_HEALTH_URLS/);
+  assert.match(canaryRelease, /host\.docker\.internal:\$\{DEEPSEEK_COMPAT_PORT\}\/health/);
+  assert.match(canaryRelease, /bootout.*DEEPSEEK_COMPAT_LABEL/);
+  assert.match(canaryRollback, /bootout.*DEEPSEEK_COMPAT_LABEL/);
+});
diff --git a/release-gate/local-stack.mjs b/release-gate/local-stack.mjs
index ca195c1..c57eac8 100644
--- a/release-gate/local-stack.mjs
+++ b/release-gate/local-stack.mjs
@@ -380,7 +380,7 @@ export async function createLocalGateStack({
     deepseekProxyLogFd = fs.openSync(deepseekProxyLogPath, 'a');
     deepseekProxyChild = spawn(
       process.execPath,
-      [path.join(root, 'deepseek-no-think-proxy.mjs')],
+      [path.join(resolvedPortalRoot, 'deepseek-no-think-proxy.mjs')],
       {
         cwd: root,
         env: {
diff --git a/release-gate/release-script.test.mjs b/release-gate/release-script.test.mjs
index 8c71424..c0b12b8 100644
--- a/release-gate/release-script.test.mjs
+++ b/release-gate/release-script.test.mjs
@@ -63,6 +63,16 @@ test('runtime builder materializes and declares required Linux ARM64 native pack
   assert.match(source, /缺少原生 \.node 文件/);
 });
 
+test('runtime builder bundles the DeepSeek compatibility dependency into the artifact', async () => {
+  const source = await fs.readFile(
+    path.join(ROOT, 'scripts', 'build-portal-runtime.mjs'),
+    'utf8',
+  );
+  assert.match(source, /bundleDeepseekCompatProxy/);
+  assert.match(source, /--outfile=\.runtime\/portal\/deepseek-no-think-proxy\.mjs/);
+  assert.match(source, /await bundleDeepseekCompatProxy\(\)/);
+});
+
 test('packaged runtime gate isolates persistent roots and rejects artifact mutation', async () => {
   const localStackSource = await fs.readFile(
     path.join(ROOT, 'release-gate', 'local-stack.mjs'),
@@ -70,7 +80,10 @@ test('packaged runtime gate isolates persistent roots and rejects artifact mutat
   );
   assert.match(localStackSource, /MEMIND_PORTAL_H5_ROOT: sandboxRoot/);
   assert.match(localStackSource, /MEMIND_DEEPSEEK_DISABLE_THINKING: '1'/);
-  assert.match(localStackSource, /deepseek-no-think-proxy\.mjs/);
+  assert.match(
+    localStackSource,
+    /path\.join\(resolvedPortalRoot, 'deepseek-no-think-proxy\.mjs'\)/,
+  );
   assert.match(localStackSource, /MEMIND_ORCHESTRATOR_MODE: 'shadow'/);
   assert.match(localStackSource, /MEMIND_ORCHESTRATOR_PAGE_DATA_VALIDATION_GATE_ENABLED: '1'/);
   assert.match(localStackSource, /H5_USERS_ROOT: usersRoot/);
@@ -119,6 +132,9 @@ test('production canary keeps stable 8081 live and switches only after verified
   const edgeBackup = source.indexOf('Create and verify the active 105 nginx routing backup');
   const goosedStart = source.indexOf('Start an isolated goosed candidate on 18015');
   const candidateStart = source.indexOf('Start the passive candidate Portal on 18081');
+  const deepseekCompatStart = source.indexOf(
+    'Start the DeepSeek tool-round compatibility proxy on 18036',
+  );
   const proxyStart = source.indexOf('Start the fail-closed identity router on 18082');
   const tunnelStart = source.indexOf('Start the isolated 105 reverse tunnel on 19082');
   const edgeSwitch = source.indexOf(
@@ -129,7 +145,8 @@ test('production canary keeps stable 8081 live and switches only after verified
   assert.ok(persistBackup > fullBackup);
   assert.ok(edgeBackup > persistBackup);
   assert.ok(goosedStart > edgeBackup);
-  assert.ok(candidateStart > goosedStart);
+  assert.ok(deepseekCompatStart > goosedStart);
+  assert.ok(candidateStart > deepseekCompatStart);
   assert.ok(proxyStart > candidateStart);
   assert.ok(tunnelStart > proxyStart);
   assert.ok(edgeSwitch > tunnelStart);
@@ -140,6 +157,12 @@ test('production canary keeps stable 8081 live and switches only after verified
   assert.match(source, /nginx -t/);
   assert.match(source, /CANARY_PROXY_PORT=18082/);
   assert.match(source, /CANARY_TUNNEL_REMOTE_PORT=19082/);
+  assert.match(source, /DEEPSEEK_COMPAT_PORT=18036/);
+  assert.match(source, /deepseek-no-think-proxy\.mjs/);
+  assert.match(source, /run-deepseek-compat-proxy-candidate\.sh/);
+  assert.match(source, /MEMIND_CANARY_CANDIDATE_HEALTH_URLS/);
+  assert.match(source, /deepseek_compat_healthy/);
+  assert.match(source, /bootout.*DEEPSEEK_COMPAT_LABEL/);
   assert.match(
     source,
     /edge_ssh\(\) \{\s*#.*\n\s*#.*\n\s*ssh -n -o BatchMode=yes/,
@@ -176,6 +199,11 @@ test('candidate runner overrides stable host MCP paths with container-visible pa
     [
       'GOOSED_MCP_NODE_PATH=/opt/homebrew/opt/node@24/bin/node',
       'GOOSED_MCP_SERVER_PATH=/Users/john/Project/Memind/mindspace-sandbox-mcp.mjs',
+      'MEMIND_DEEPSEEK_DISABLE_THINKING=0',
+      'MEMIND_DEEPSEEK_NO_THINK_PORT=9999',
+      'MEMIND_DEEPSEEK_NO_THINK_BASE_URL=http://wrong.invalid/v1',
+      'MEMIND_DEEPSEEK_NO_THINK_HOST=wrong.invalid',
+      'MEMIND_GOOSED_HOST_GATEWAY=wrong.invalid',
       '',
     ].join('\n'),
   );
@@ -186,6 +214,11 @@ test('candidate runner overrides stable host MCP paths with container-visible pa
       'printf "cwd=%s\\n" "$PWD"',
       'printf "mcp_node=%s\\n" "$GOOSED_MCP_NODE_PATH"',
       'printf "mcp_server=%s\\n" "$GOOSED_MCP_SERVER_PATH"',
+      'printf "deepseek_disable=%s\\n" "$MEMIND_DEEPSEEK_DISABLE_THINKING"',
+      'printf "deepseek_port=%s\\n" "$MEMIND_DEEPSEEK_NO_THINK_PORT"',
+      'printf "deepseek_gateway=%s\\n" "$MEMIND_GOOSED_HOST_GATEWAY"',
+      'printf "deepseek_base=%s\\n" "${MEMIND_DEEPSEEK_NO_THINK_BASE_URL-unset}"',
+      'printf "deepseek_host=%s\\n" "${MEMIND_DEEPSEEK_NO_THINK_HOST-unset}"',
       'printf "entrypoint=%s\\n" "$1"',
       '',
     ].join('\n'),
@@ -215,9 +248,78 @@ test('candidate runner overrides stable host MCP paths with container-visible pa
     result.stdout,
     /^mcp_server=\/opt\/portal\/mindspace-sandbox-mcp\.mjs$/m,
   );
+  assert.match(result.stdout, /^deepseek_disable=1$/m);
+  assert.match(result.stdout, /^deepseek_port=18036$/m);
+  assert.match(result.stdout, /^deepseek_gateway=host\.docker\.internal$/m);
+  assert.match(result.stdout, /^deepseek_base=unset$/m);
+  assert.match(result.stdout, /^deepseek_host=unset$/m);
   assert.match(result.stdout, new RegExp(`^entrypoint=${ROOT}/server\\.mjs$`, 'm'));
 });
 
+test('canary rollback stops the DeepSeek compatibility process with the other canary services', async () => {
+  const source = await fs.readFile(CANARY_ROLLBACK, 'utf8');
+  assert.match(
+    source,
+    /DEEPSEEK_COMPAT_LABEL="cn\.tkmind\.memind-deepseek-compat-candidate"/,
+  );
+  assert.match(source, /bootout.*DEEPSEEK_COMPAT_LABEL/);
+  assert.match(source, /docker rm -f goosed-prod-canary/);
+});
+
+test('DeepSeek compatibility runner preserves stable upstream config but enforces candidate controls', async (t) => {
+  const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), 'memind-deepseek-runner-'));
+  t.after(() => fs.rm(tempRoot, { recursive: true, force: true }));
+
+  const stableRoot = path.join(tempRoot, 'stable');
+  const fakeNode = path.join(tempRoot, 'node');
+  await fs.mkdir(stableRoot);
+  await fs.writeFile(
+    path.join(stableRoot, '.env'),
+    [
+      'DEEPSEEK_API_BASE_URL=https://synthetic-upstream.invalid/v1',
+      'MEMIND_DEEPSEEK_PROXY_ENTRYPOINT=0',
+      'MEMIND_DEEPSEEK_NO_THINK_PORT=9999',
+      '',
+    ].join('\n'),
+  );
+  await fs.writeFile(
+    fakeNode,
+    [
+      '#!/usr/bin/env bash',
+      'printf "proxy_entrypoint=%s\\n" "$MEMIND_DEEPSEEK_PROXY_ENTRYPOINT"',
+      'printf "proxy_port=%s\\n" "$MEMIND_DEEPSEEK_NO_THINK_PORT"',
+      'printf "upstream=%s\\n" "$DEEPSEEK_API_BASE_URL"',
+      'printf "entrypoint=%s\\n" "$1"',
+      '',
+    ].join('\n'),
+    { mode: 0o755 },
+  );
+
+  const result = spawnSync(
+    'bash',
+    [path.join(ROOT, 'scripts', 'run-deepseek-compat-proxy-candidate.sh')],
+    {
+      cwd: '/',
+      encoding: 'utf8',
+      env: {
+        ...process.env,
+        MEMIND_CANARY_STABLE_ROOT: stableRoot,
+        MEMIND_CANARY_DEEPSEEK_PROXY_PORT: '18036',
+        NODE_BIN: fakeNode,
+      },
+    },
+  );
+
+  assert.equal(result.status, 0, result.stderr);
+  assert.match(result.stdout, /^proxy_entrypoint=1$/m);
+  assert.match(result.stdout, /^proxy_port=18036$/m);
+  assert.match(result.stdout, /^upstream=https:\/\/synthetic-upstream\.invalid\/v1$/m);
+  assert.match(
+    result.stdout,
+    new RegExp(`^entrypoint=${ROOT}/deepseek-no-think-proxy\\.mjs$`, 'm'),
+  );
+});
+
 test('canary release and rollback remote shells remain syntactically valid', async () => {
   const releaseSource = await fs.readFile(CANARY_RELEASE, 'utf8');
   const rollbackSource = await fs.readFile(CANARY_ROLLBACK, 'utf8');
diff --git a/scenarios/production-regressions/agent-run/PRC-REL-002.json b/scenarios/production-regressions/agent-run/PRC-REL-002.json
new file mode 100644
index 0000000..8c4b0e4
--- /dev/null
+++ b/scenarios/production-regressions/agent-run/PRC-REL-002.json
@@ -0,0 +1,16 @@
+{
+  "id": "PRC-REL-002",
+  "scenario_ids": ["REL-06", "REL-09", "REL-11"],
+  "failure_signature": "gate-production-drift-deepseek-thinking-tool-round-reasoning-content-replay-rejected",
+  "synthetic_intent": "验证工具调用后的合成 DeepSeek 会话经过生产候选兼容链路，禁用思考模式，并在兼容依赖失效时让灰度流量回落稳定版本。",
+  "source_batch_id": "incident-20260726-deepseek-tool-round",
+  "evidence_digest": "97171fe1d94e0297cb0b932cf1ff18e8d1760519300f7308b9f8cc4e9517e022",
+  "contains_personal_data": false,
+  "privacy_review": {
+    "reviewed_by": "release-gate-maintainers",
+    "reviewed_at": "2026-07-26T23:55:00+08:00"
+  },
+  "automation": {
+    "command": ["node", "--test", "release-gate/deepseek-production-parity.test.mjs"]
+  }
+}
diff --git a/scenarios/production-regressions/manifests/active.json b/scenarios/production-regressions/manifests/active.json
index eb49393..71c33e6 100644
--- a/scenarios/production-regressions/manifests/active.json
+++ b/scenarios/production-regressions/manifests/active.json
@@ -1,6 +1,6 @@
 {
-  "fixture_ids": ["PRC-REL-001"],
+  "fixture_ids": ["PRC-REL-001", "PRC-REL-002"],
   "reviewed_by": "release-gate-maintainers",
   "reviewed_at": "2026-07-26T12:00:00+08:00",
-  "notes": "仅收录已脱敏的 runtime 启动回归签名；不包含聊天原文、用户身份或生产地址。"
+  "notes": "仅收录已脱敏的 runtime 启动和生产配置同构回归签名；不包含聊天原文、用户身份或生产地址。"
 }
diff --git a/scripts/build-portal-runtime.mjs b/scripts/build-portal-runtime.mjs
index aef8117..f84b73b 100755
--- a/scripts/build-portal-runtime.mjs
+++ b/scripts/build-portal-runtime.mjs
@@ -156,6 +156,26 @@ async function bundleCanaryProxy() {
   await run(esbuildBin, args);
 }
 
+async function bundleDeepseekCompatProxy() {
+  if (!(await exists(esbuildBin))) {
+    throw new Error(`未找到 esbuild: ${esbuildBin}`);
+  }
+  console.log('==> 打包 DeepSeek 工具轮次兼容代理');
+  const args = [
+    'deepseek-no-think-proxy.mjs',
+    '--bundle',
+    '--platform=node',
+    '--format=esm',
+    `--target=${runtimeNodeTarget}`,
+    '--outfile=.runtime/portal/deepseek-no-think-proxy.mjs',
+    '--banner:js=import { createRequire as __createRequire } from "node:module"; const require = __createRequire(import.meta.url);',
+  ];
+  for (const pkg of externalPackages) {
+    args.push(`--external:${pkg}`);
+  }
+  await run(esbuildBin, args);
+}
+
 async function bundleSandboxMcp() {
   if (!(await exists(esbuildBin))) {
     throw new Error(`未找到 esbuild: ${esbuildBin}`);
@@ -409,6 +429,7 @@ async function writeMetadata() {
   for (const scriptName of [
     'run-memind-portal-candidate.sh',
     'run-memind-canary-proxy-prod.sh',
+    'run-deepseek-compat-proxy-candidate.sh',
   ]) {
     const source = path.join(root, 'scripts', scriptName);
     if (!(await exists(source))) {
@@ -527,6 +548,7 @@ async function writeMetadata() {
       '  tkmind-excel-mcp.mjs        (esbuild bundle; required when Excel Analyst is enabled)',
       '  wechat-mp.bundle.mjs         (esbuild bundle; hot-swappable WeChat MP module)',
       '  memind-canary-proxy.mjs      (immutable-identity stable/candidate router)',
+      '  deepseek-no-think-proxy.mjs  (DeepSeek V4 tool-round compatibility proxy)',
       '',
       'Post-deploy validation (scripts/check-mindspace-public-links.mjs):',
       '  Scans MindSpace/*/public/*.html for missing relative href/src/cover targets.',
@@ -598,6 +620,7 @@ async function main() {
   await copyRuntimeAssets();
   await bundleServer();
   await bundleCanaryProxy();
+  await bundleDeepseekCompatProxy();
   await bundleWechatMp();
   await bundleSandboxMcp();
   await bundleMindSearchMcp();
@@ -611,6 +634,10 @@ async function main() {
   await fs.chmod(path.join(runtimeRoot, 'scripts', 'run-memind-portal-prod.sh'), 0o755);
   await fs.chmod(path.join(runtimeRoot, 'scripts', 'run-memind-portal-candidate.sh'), 0o755);
   await fs.chmod(path.join(runtimeRoot, 'scripts', 'run-memind-canary-proxy-prod.sh'), 0o755);
+  await fs.chmod(
+    path.join(runtimeRoot, 'scripts', 'run-deepseek-compat-proxy-candidate.sh'),
+    0o755,
+  );
   await fs.chmod(path.join(runtimeRoot, 'scripts', 'wechat-mp-menu.mjs'), 0o755);
   await fs.chmod(path.join(runtimeRoot, 'scripts', 'check-stream-runtime.mjs'), 0o755);
   await fs.chmod(path.join(runtimeRoot, 'scripts', 'runtime-worker-drain.mjs'), 0o755);
diff --git a/scripts/release-portal-canary-prod.sh b/scripts/release-portal-canary-prod.sh
index 6c24f81..c06b4e7 100755
--- a/scripts/release-portal-canary-prod.sh
+++ b/scripts/release-portal-canary-prod.sh
@@ -13,9 +13,11 @@ RUNTIME_ROOT="${ROOT}/.runtime/portal"
 PORTAL_CANDIDATE_LABEL="cn.tkmind.memind-portal-candidate"
 CANARY_PROXY_LABEL="cn.tkmind.memind-canary-proxy"
 CANARY_TUNNEL_LABEL="cn.tkmind.memind-canary-tunnel"
+DEEPSEEK_COMPAT_LABEL="cn.tkmind.memind-deepseek-compat-candidate"
 EDGE_HOST="${MEMIND_CANARY_EDGE_HOST:-ssh105-public}"
 CANARY_PROXY_PORT=18082
 CANARY_TUNNEL_REMOTE_PORT=19082
+DEEPSEEK_COMPAT_PORT=18036
 EDGE_MOBILE_CONFIG="/etc/nginx/conf.d/m.tkmind.cn.conf"
 EDGE_WECHAT_CONFIG="/etc/nginx/conf.d/wechat.m.tkmind.cn.conf"
 CANARY_USERNAMES="john"
@@ -46,6 +48,7 @@ Deploys a candidate Portal beside the stable 103 runtime:
   canary router     127.0.0.1:18082
   candidate Portal  127.0.0.1:18081
   candidate goosed  127.0.0.1:18015
+  DeepSeek compat   0.0.0.0:18036 (host/container only)
 
 The stable runtime is not replaced. A dedicated reverse tunnel exposes the
 router only to 105 at 127.0.0.1:19082. The committed release workflow updates
@@ -123,6 +126,7 @@ say "Run release source guards"
 required_runtime_paths=(
   server.mjs
   memind-canary-proxy.mjs
+  deepseek-no-think-proxy.mjs
   wechat-mp.bundle.mjs
   mindspace-sandbox-mcp.mjs
   tkmind-search-mcp.mjs
@@ -131,6 +135,7 @@ required_runtime_paths=(
   package.json
   scripts/run-memind-portal-candidate.sh
   scripts/run-memind-canary-proxy-prod.sh
+  scripts/run-deepseek-compat-proxy-candidate.sh
   scripts/goosed-canary.compose.yml
   scripts/memind-portal-tunnel.sh
 )
@@ -155,7 +160,7 @@ printf '%s  %s\n' "${bundle_sha}" "$(basename "${BUNDLE_PATH}")" > "${SHA_PATH}"
   echo "git_branch=${branch}"
   echo "artifact_tree=.runtime/portal"
   echo "artifact_bundle_sha256=${bundle_sha}"
-  echo "routing=stable:8081,proxy:18082,edge-tunnel:19082,candidate:18081,goosed-canary:18015"
+  echo "routing=stable:8081,proxy:18082,edge-tunnel:19082,candidate:18081,goosed-canary:18015,deepseek-compat:18036"
   echo "canary_usernames=${CANARY_USERNAMES}"
   echo "canary_wechat_user_ids=${CANARY_WECHAT_USER_IDS}"
   echo "manual_environment_changes=none"
@@ -174,6 +179,7 @@ ssh -o BatchMode=yes -o ConnectTimeout=15 "${HOST}" \
    && test -f '${GOOSED_DIR}/docker-compose.prod.yml' \
    && curl -fsS http://127.0.0.1:8081/api/status >/dev/null \
    && ! lsof -nP -iTCP:${CANARY_PROXY_PORT} -sTCP:LISTEN >/dev/null 2>&1 \
+   && ! lsof -nP -iTCP:${DEEPSEEK_COMPAT_PORT} -sTCP:LISTEN >/dev/null 2>&1 \
    && ! lsof -nP -iTCP:18081 -sTCP:LISTEN >/dev/null 2>&1 \
    && ! lsof -nP -iTCP:18015 -sTCP:LISTEN >/dev/null 2>&1 \
    && /opt/homebrew/bin/docker inspect goosed-prod-1 >/dev/null \
@@ -214,9 +220,11 @@ ssh -o BatchMode=yes "${HOST}" \
    PORTAL_CANDIDATE_LABEL='${PORTAL_CANDIDATE_LABEL}' \
    CANARY_PROXY_LABEL='${CANARY_PROXY_LABEL}' \
    CANARY_TUNNEL_LABEL='${CANARY_TUNNEL_LABEL}' \
+   DEEPSEEK_COMPAT_LABEL='${DEEPSEEK_COMPAT_LABEL}' \
    EDGE_HOST='${EDGE_HOST}' \
    CANARY_PROXY_PORT='${CANARY_PROXY_PORT}' \
    CANARY_TUNNEL_REMOTE_PORT='${CANARY_TUNNEL_REMOTE_PORT}' \
+   DEEPSEEK_COMPAT_PORT='${DEEPSEEK_COMPAT_PORT}' \
    EDGE_MOBILE_CONFIG='${EDGE_MOBILE_CONFIG}' \
    EDGE_WECHAT_CONFIG='${EDGE_WECHAT_CONFIG}' \
    CANARY_USERNAMES='${CANARY_USERNAMES}' \
@@ -234,6 +242,7 @@ PERSIST_BACKUP_TAR="${BACKUP_DIR}/memind-persisted-${RELEASE_ID}-before-canary.t
 CANDIDATE_PLIST="${HOME}/Library/LaunchAgents/${PORTAL_CANDIDATE_LABEL}.plist"
 PROXY_PLIST="${HOME}/Library/LaunchAgents/${CANARY_PROXY_LABEL}.plist"
 CANARY_TUNNEL_PLIST="${HOME}/Library/LaunchAgents/${CANARY_TUNNEL_LABEL}.plist"
+DEEPSEEK_COMPAT_PLIST="${HOME}/Library/LaunchAgents/${DEEPSEEK_COMPAT_LABEL}.plist"
 SECRET_FILE="${HOME}/.config/memind/canary-router.secret"
 DOCKER_BIN="/opt/homebrew/bin/docker"
 GOOSED_COMPOSE="${GOOSED_DIR}/docker-compose.prod.yml"
@@ -260,6 +269,22 @@ candidate_healthy() {
   return 1
 }
 
+deepseek_compat_healthy() {
+  curl -fsS --max-time 5 "http://127.0.0.1:${DEEPSEEK_COMPAT_PORT}/health" \
+    | /opt/homebrew/opt/node@24/bin/node --input-type=module -e '
+        let input = "";
+        process.stdin.on("data", (chunk) => { input += chunk; });
+        process.stdin.on("end", () => {
+          const status = JSON.parse(input);
+          if (
+            status.ok !== true
+            || status.contractVersion !== 1
+            || status.deepseekThinking !== "disabled"
+          ) process.exit(1);
+        });
+      '
+}
+
 edge_ssh() {
   # This remote release script itself arrives on stdin. Ordinary nested SSH
   # commands must not consume the unparsed remainder of that script.
@@ -326,6 +351,7 @@ stop_candidate_services() {
   launchctl bootout "${LAUNCHD_GUI}/${CANARY_TUNNEL_LABEL}" >/dev/null 2>&1 || true
   launchctl bootout "${LAUNCHD_GUI}/${CANARY_PROXY_LABEL}" >/dev/null 2>&1 || true
   launchctl bootout "${LAUNCHD_GUI}/${PORTAL_CANDIDATE_LABEL}" >/dev/null 2>&1 || true
+  launchctl bootout "${LAUNCHD_GUI}/${DEEPSEEK_COMPAT_LABEL}" >/dev/null 2>&1 || true
   "${DOCKER_BIN}" rm -f goosed-prod-canary >/dev/null 2>&1 || true
 }
 
@@ -405,7 +431,8 @@ tar -xzf "${BUNDLE}" -C "${CANDIDATE_DIR}"
 cp "${MANIFEST}" "${CANDIDATE_DIR}/.release-manifest.txt"
 chmod 755 \
   "${CANDIDATE_DIR}/scripts/run-memind-portal-candidate.sh" \
-  "${CANDIDATE_DIR}/scripts/run-memind-canary-proxy-prod.sh"
+  "${CANDIDATE_DIR}/scripts/run-memind-canary-proxy-prod.sh" \
+  "${CANDIDATE_DIR}/scripts/run-deepseek-compat-proxy-candidate.sh"
 
 say "Stop an older canary without touching stable Portal 8081"
 restore_edge_to_stable
@@ -434,6 +461,39 @@ done
 "${DOCKER_BIN}" exec goosed-prod-canary \
   sh -lc 'test -x /usr/local/bin/node && test -f /opt/portal/mindspace-sandbox-mcp.mjs'
 
+say "Start the DeepSeek tool-round compatibility proxy on 18036"
+cat > "${DEEPSEEK_COMPAT_PLIST}" <<EOF
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>Label</key><string>${DEEPSEEK_COMPAT_LABEL}</string>
+  <key>ProgramArguments</key>
+  <array><string>${CANDIDATE_DIR}/scripts/run-deepseek-compat-proxy-candidate.sh</string></array>
+  <key>EnvironmentVariables</key>
+  <dict>
+    <key>MEMIND_CANARY_STABLE_ROOT</key><string>${STABLE_DIR}</string>
+    <key>MEMIND_CANARY_DEEPSEEK_PROXY_PORT</key><string>${DEEPSEEK_COMPAT_PORT}</string>
+  </dict>
+  <key>RunAtLoad</key><true/>
+  <key>KeepAlive</key><true/>
+  <key>ThrottleInterval</key><integer>5</integer>
+  <key>StandardOutPath</key><string>${HOME}/Library/Logs/memind-deepseek-compat-candidate.log</string>
+  <key>StandardErrorPath</key><string>${HOME}/Library/Logs/memind-deepseek-compat-candidate.log</string>
+</dict>
+</plist>
+EOF
+launchctl bootstrap "${LAUNCHD_GUI}" "${DEEPSEEK_COMPAT_PLIST}" >/dev/null
+launchctl kickstart -k "${LAUNCHD_GUI}/${DEEPSEEK_COMPAT_LABEL}" >/dev/null
+for _ in $(seq 1 30); do
+  deepseek_compat_healthy && break
+  sleep 1
+done
+deepseek_compat_healthy
+"${DOCKER_BIN}" exec goosed-prod-canary \
+  sh -lc "curl -fsS --max-time 5 http://host.docker.internal:${DEEPSEEK_COMPAT_PORT}/health \
+    | grep -q '\"deepseekThinking\":\"disabled\"'"
+
 say "Start the passive candidate Portal on 18081"
 cat > "${CANDIDATE_PLIST}" <<EOF
 <?xml version="1.0" encoding="UTF-8"?>
@@ -449,6 +509,7 @@ cat > "${CANDIDATE_PLIST}" <<EOF
     <key>MEMIND_CANARY_RELEASE_ID</key><string>${RELEASE_ID}</string>
     <key>MEMIND_CANARY_CANDIDATE_PORT</key><string>18081</string>
     <key>MEMIND_CANARY_GOOSED_URL</key><string>https://127.0.0.1:18015</string>
+    <key>MEMIND_CANARY_DEEPSEEK_PROXY_PORT</key><string>${DEEPSEEK_COMPAT_PORT}</string>
   </dict>
   <key>RunAtLoad</key><true/>
   <key>KeepAlive</key><true/>
@@ -500,6 +561,7 @@ cat > "${PROXY_PLIST}" <<EOF
     <key>MEMIND_CANARY_PROXY_PORT</key><string>${CANARY_PROXY_PORT}</string>
     <key>MEMIND_RELEASE_CANARY_USERNAMES</key><string>${CANARY_USERNAMES}</string>
     <key>MEMIND_RELEASE_CANARY_WECHAT_USER_IDS</key><string>${CANARY_WECHAT_USER_IDS}</string>
+    <key>MEMIND_CANARY_CANDIDATE_HEALTH_URLS</key><string>http://127.0.0.1:${DEEPSEEK_COMPAT_PORT}/health</string>
   </dict>
   <key>RunAtLoad</key><true/>
   <key>KeepAlive</key><true/>
@@ -675,6 +737,7 @@ printf 'proxy_health=http://127.0.0.1:%s/__memind_canary/health\n' "${CANARY_PRO
 printf 'edge_tunnel=http://127.0.0.1:%s/api/status\n' "${CANARY_TUNNEL_REMOTE_PORT}"
 printf 'candidate_health=http://127.0.0.1:18081/api/status\n'
 printf 'candidate_goosed=https://127.0.0.1:18015/status\n'
+printf 'deepseek_compat_health=http://127.0.0.1:%s/health\n' "${DEEPSEEK_COMPAT_PORT}"
 REMOTE_SCRIPT
 
 say "103 canary release completed"
diff --git a/scripts/release-portal-runtime-prod.sh b/scripts/release-portal-runtime-prod.sh
index c97ff02..5ef95f8 100755
--- a/scripts/release-portal-runtime-prod.sh
+++ b/scripts/release-portal-runtime-prod.sh
@@ -166,7 +166,7 @@ fi
 
 verify_runtime_artifact() {
   local missing=0
-  for required in server.mjs memind-canary-proxy.mjs wechat-mp.bundle.mjs mindspace-sandbox-mcp.mjs tkmind-search-mcp.mjs tkmind-excel-mcp.mjs mindspace-public-links.mjs dist package.json scripts/run-memind-portal-prod.sh scripts/run-memind-portal-candidate.sh scripts/run-memind-canary-proxy-prod.sh scripts/goosed-canary.compose.yml scripts/check-mindspace-public-links.mjs scripts/load-env.mjs scripts/wechat-mp-menu.mjs scripts/memind-portal-tunnel.sh; do
+  for required in server.mjs memind-canary-proxy.mjs deepseek-no-think-proxy.mjs wechat-mp.bundle.mjs mindspace-sandbox-mcp.mjs tkmind-search-mcp.mjs tkmind-excel-mcp.mjs mindspace-public-links.mjs dist package.json scripts/run-memind-portal-prod.sh scripts/run-memind-portal-candidate.sh scripts/run-memind-canary-proxy-prod.sh scripts/run-deepseek-compat-proxy-candidate.sh scripts/goosed-canary.compose.yml scripts/check-mindspace-public-links.mjs scripts/load-env.mjs scripts/wechat-mp-menu.mjs scripts/memind-portal-tunnel.sh; do
     if [[ ! -e "${RUNTIME_ROOT}/${required}" ]]; then
       echo "runtime 产物缺失: ${RUNTIME_ROOT}/${required}" >&2
       missing=1
diff --git a/scripts/rollback-portal-canary-prod.sh b/scripts/rollback-portal-canary-prod.sh
index 6979a2a..df226ec 100755
--- a/scripts/rollback-portal-canary-prod.sh
+++ b/scripts/rollback-portal-canary-prod.sh
@@ -6,6 +6,7 @@ STABLE_DIR="${STUDIO_REMOTE_ROOT:-/Users/john/Project}/Memind"
 PORTAL_CANDIDATE_LABEL="cn.tkmind.memind-portal-candidate"
 CANARY_PROXY_LABEL="cn.tkmind.memind-canary-proxy"
 CANARY_TUNNEL_LABEL="cn.tkmind.memind-canary-tunnel"
+DEEPSEEK_COMPAT_LABEL="cn.tkmind.memind-deepseek-compat-candidate"
 EDGE_HOST="${MEMIND_CANARY_EDGE_HOST:-ssh105-public}"
 CANARY_TUNNEL_REMOTE_PORT=19082
 EDGE_MOBILE_CONFIG="/etc/nginx/conf.d/m.tkmind.cn.conf"
@@ -30,6 +31,7 @@ ssh -o BatchMode=yes -o ConnectTimeout=15 "${HOST}" \
    PORTAL_CANDIDATE_LABEL='${PORTAL_CANDIDATE_LABEL}' \
    CANARY_PROXY_LABEL='${CANARY_PROXY_LABEL}' \
    CANARY_TUNNEL_LABEL='${CANARY_TUNNEL_LABEL}' \
+   DEEPSEEK_COMPAT_LABEL='${DEEPSEEK_COMPAT_LABEL}' \
    EDGE_HOST='${EDGE_HOST}' \
    CANARY_TUNNEL_REMOTE_PORT='${CANARY_TUNNEL_REMOTE_PORT}' \
    EDGE_MOBILE_CONFIG='${EDGE_MOBILE_CONFIG}' \
@@ -69,6 +71,7 @@ EDGE_ROLLBACK
 launchctl bootout "${LAUNCHD_GUI}/${CANARY_TUNNEL_LABEL}" >/dev/null 2>&1 || true
 launchctl bootout "${LAUNCHD_GUI}/${CANARY_PROXY_LABEL}" >/dev/null 2>&1 || true
 launchctl bootout "${LAUNCHD_GUI}/${PORTAL_CANDIDATE_LABEL}" >/dev/null 2>&1 || true
+launchctl bootout "${LAUNCHD_GUI}/${DEEPSEEK_COMPAT_LABEL}" >/dev/null 2>&1 || true
 /opt/homebrew/bin/docker rm -f goosed-prod-canary >/dev/null 2>&1 || true
 rm -f "${STABLE_DIR}/.release-drain"
 
diff --git a/scripts/run-deepseek-compat-proxy-candidate.sh b/scripts/run-deepseek-compat-proxy-candidate.sh
new file mode 100755
index 0000000..ed4641c
--- /dev/null
+++ b/scripts/run-deepseek-compat-proxy-candidate.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+STABLE_ROOT="${MEMIND_CANARY_STABLE_ROOT:-/Users/john/Project/Memind}"
+
+if [[ ! -d "${STABLE_ROOT}" || ! -f "${STABLE_ROOT}/.env" ]]; then
+  echo "[deepseek-compat] stable runtime environment is unavailable: ${STABLE_ROOT}" >&2
+  exit 1
+fi
+
+cd "${ROOT}"
+
+set -a
+# shellcheck disable=SC1091
+source "${STABLE_ROOT}/.env"
+set +a
+
+export NODE_ENV=production
+export MEMIND_DEEPSEEK_PROXY_ENTRYPOINT=1
+export MEMIND_DEEPSEEK_NO_THINK_PORT="${MEMIND_CANARY_DEEPSEEK_PROXY_PORT:-18036}"
+
+NODE_BIN="${NODE_BIN:-/opt/homebrew/opt/node@24/bin/node}"
+if [[ ! -x "${NODE_BIN}" ]]; then
+  NODE_BIN="$(command -v node)"
+fi
+
+exec "${NODE_BIN}" "${ROOT}/deepseek-no-think-proxy.mjs"
diff --git a/scripts/run-memind-portal-candidate.sh b/scripts/run-memind-portal-candidate.sh
index e53c9af..a566144 100755
--- a/scripts/run-memind-portal-candidate.sh
+++ b/scripts/run-memind-portal-candidate.sh
@@ -33,6 +33,13 @@ export TKMIND_API_TARGET="${MEMIND_CANARY_GOOSED_URL:-https://127.0.0.1:18015}"
 # mounted at /opt/portal. Never inherit host-only MCP paths from the stable .env.
 export GOOSED_MCP_NODE_PATH=/usr/local/bin/node
 export GOOSED_MCP_SERVER_PATH=/opt/portal/mindspace-sandbox-mcp.mjs
+# DeepSeek V4 tool rounds must use the same compatibility contract exercised
+# by the release Gate. Stable .env values cannot disable or redirect it.
+export MEMIND_DEEPSEEK_DISABLE_THINKING=1
+export MEMIND_DEEPSEEK_NO_THINK_PORT="${MEMIND_CANARY_DEEPSEEK_PROXY_PORT:-18036}"
+export MEMIND_GOOSED_HOST_GATEWAY=host.docker.internal
+unset MEMIND_DEEPSEEK_NO_THINK_BASE_URL
+unset MEMIND_DEEPSEEK_NO_THINK_HOST
 unset TKMIND_API_TARGET_1
 
 NODE_BIN="${NODE_BIN:-/opt/homebrew/opt/node@24/bin/node}"