diff --git a/CHANGELOG.md b/CHANGELOG.md
index 25e663bc..80600674 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- **Feishu/Lark bridge startup order is guarded.** The bridge now keeps
+  `ThreadStore` initialized before startup opens persisted thread state, with a
+  regression test to prevent moving it below its first use.
+
 ## [0.8.38] - 2026-05-15
 
 ### Changed
diff --git a/crates/tui/CHANGELOG.md b/crates/tui/CHANGELOG.md
index 25e663bc..80600674 100644
--- a/crates/tui/CHANGELOG.md
+++ b/crates/tui/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- **Feishu/Lark bridge startup order is guarded.** The bridge now keeps
+  `ThreadStore` initialized before startup opens persisted thread state, with a
+  regression test to prevent moving it below its first use.
+
 ## [0.8.38] - 2026-05-15
 
 ### Changed
diff --git a/integrations/feishu-bridge/src/index.mjs b/integrations/feishu-bridge/src/index.mjs
index 80e7a086..d5a9c274 100644
--- a/integrations/feishu-bridge/src/index.mjs
+++ b/integrations/feishu-bridge/src/index.mjs
@@ -20,6 +20,65 @@ import {
   stripGroupPrefix
 } from "./lib.mjs";
 
+class ThreadStore {
+  static async open(filePath) {
+    const store = new ThreadStore(filePath);
+    await store.load();
+    return store;
+  }
+
+  constructor(filePath) {
+    this.filePath = filePath;
+    this.data = { chats: {} };
+  }
+
+  async load() {
+    try {
+      const raw = await fs.readFile(this.filePath, "utf8");
+      this.data = JSON.parse(raw);
+      if (!this.data.chats) this.data.chats = {};
+      if (!this.data.messages) this.data.messages = [];
+    } catch (error) {
+      if (error.code !== "ENOENT") throw error;
+    }
+  }
+
+  async recordMessage(messageId) {
+    if (!messageId) return false;
+    if (!Array.isArray(this.data.messages)) this.data.messages = [];
+    if (this.data.messages.includes(messageId)) return true;
+    this.data.messages.push(messageId);
+    this.data.messages = this.data.messages.slice(-200);
+    await this.save();
+    return false;
+  }
+
+  async getChat(chatId) {
+    return this.data.chats[chatId] || null;
+  }
+
+  async setChat(chatId, state) {
+    this.data.chats[chatId] = state;
+    await this.save();
+    return state;
+  }
+
+  async patchChat(chatId, patch) {
+    const current = this.data.chats[chatId] || {};
+    this.data.chats[chatId] = { ...current, ...patch };
+    await this.save();
+    return this.data.chats[chatId];
+  }
+
+  async save() {
+    const dir = path.dirname(this.filePath);
+    await fs.mkdir(dir, { recursive: true, mode: 0o700 });
+    const tmp = `${this.filePath}.tmp`;
+    await fs.writeFile(tmp, `${JSON.stringify(this.data, null, 2)}\n`, { mode: 0o600 });
+    await fs.rename(tmp, this.filePath);
+  }
+}
+
 const config = {
   appId: requiredEnv("FEISHU_APP_ID"),
   appSecret: requiredEnv("FEISHU_APP_SECRET"),
@@ -509,62 +568,3 @@ function resolveLarkDomain(domain) {
   if (normalized === "feishu") return Lark.Domain?.Feishu || "https://open.feishu.cn";
   return domain;
 }
-
-class ThreadStore {
-  static async open(filePath) {
-    const store = new ThreadStore(filePath);
-    await store.load();
-    return store;
-  }
-
-  constructor(filePath) {
-    this.filePath = filePath;
-    this.data = { chats: {} };
-  }
-
-  async load() {
-    try {
-      const raw = await fs.readFile(this.filePath, "utf8");
-      this.data = JSON.parse(raw);
-      if (!this.data.chats) this.data.chats = {};
-      if (!this.data.messages) this.data.messages = [];
-    } catch (error) {
-      if (error.code !== "ENOENT") throw error;
-    }
-  }
-
-  async recordMessage(messageId) {
-    if (!messageId) return false;
-    if (!Array.isArray(this.data.messages)) this.data.messages = [];
-    if (this.data.messages.includes(messageId)) return true;
-    this.data.messages.push(messageId);
-    this.data.messages = this.data.messages.slice(-200);
-    await this.save();
-    return false;
-  }
-
-  async getChat(chatId) {
-    return this.data.chats[chatId] || null;
-  }
-
-  async setChat(chatId, state) {
-    this.data.chats[chatId] = state;
-    await this.save();
-    return state;
-  }
-
-  async patchChat(chatId, patch) {
-    const current = this.data.chats[chatId] || {};
-    this.data.chats[chatId] = { ...current, ...patch };
-    await this.save();
-    return this.data.chats[chatId];
-  }
-
-  async save() {
-    const dir = path.dirname(this.filePath);
-    await fs.mkdir(dir, { recursive: true, mode: 0o700 });
-    const tmp = `${this.filePath}.tmp`;
-    await fs.writeFile(tmp, `${JSON.stringify(this.data, null, 2)}\n`, { mode: 0o600 });
-    await fs.rename(tmp, this.filePath);
-  }
-}
diff --git a/integrations/feishu-bridge/test/startup-order.test.mjs b/integrations/feishu-bridge/test/startup-order.test.mjs
new file mode 100644
index 00000000..64f49e39
--- /dev/null
+++ b/integrations/feishu-bridge/test/startup-order.test.mjs
@@ -0,0 +1,17 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+import fs from "node:fs/promises";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+
+test("ThreadStore is initialized before bridge startup opens it", async () => {
+  const source = await fs.readFile(path.join(__dirname, "../src/index.mjs"), "utf8");
+  const declaration = source.indexOf("class ThreadStore");
+  const startupUse = source.indexOf("await ThreadStore.open");
+
+  assert.notEqual(declaration, -1);
+  assert.notEqual(startupUse, -1);
+  assert.ok(declaration < startupUse);
+});