diff --git a/.github/workflows/license-header.yml b/.github/workflows/license-header.yml
new file mode 100644
index 00000000..8107ee8f
--- /dev/null
+++ b/.github/workflows/license-header.yml
@@ -0,0 +1,26 @@
+name: License Header
+
+on:
+  pull_request:
+    branches: [main]
+    paths:
+      - "**/*.go"
+      - "**/*.js"
+      - "**/*.py"
+      - .licenserc.yaml
+      - .github/workflows/license-header.yml
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  header-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+
+      - name: Check license headers
+        uses: apache/skywalking-eyes/header@8c96ee223558797cdd9eba82c0919258e1cf2dad
+        with:
+          config: .licenserc.yaml
diff --git a/.licenserc.yaml b/.licenserc.yaml
new file mode 100644
index 00000000..d9e23774
--- /dev/null
+++ b/.licenserc.yaml
@@ -0,0 +1,16 @@
+header:
+  license:
+    content: |
+      Copyright (c) [year] Lark Technologies Pte. Ltd.
+      SPDX-License-Identifier: MIT
+    copyright-year: "2026"
+
+  paths:
+    - '**/*.go'
+    - '**/*.js'
+    - '**/*.py'
+
+  paths-ignore:
+    - '**/testdata/**'
+
+  comment: on-failure
diff --git a/internal/auth/auth_response_log.go b/internal/auth/auth_response_log.go
index 0695027e..b57a9eda 100644
--- a/internal/auth/auth_response_log.go
+++ b/internal/auth/auth_response_log.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
 package auth
 
 import (
diff --git a/internal/keychain/auth_log.go b/internal/keychain/auth_log.go
index 64558bd9..4d1ac2f3 100644
--- a/internal/keychain/auth_log.go
+++ b/internal/keychain/auth_log.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
 package keychain
 
 import (
diff --git a/scripts/install.js b/scripts/install.js
index 3393840f..3a3b1ecc 100644
--- a/scripts/install.js
+++ b/scripts/install.js
@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
 const fs = require("fs");
 const path = require("path");
 const { execSync } = require("child_process");
diff --git a/scripts/pr-labels/test.js b/scripts/pr-labels/test.js
index db08ddc1..7317d1b8 100644
--- a/scripts/pr-labels/test.js
+++ b/scripts/pr-labels/test.js
@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
 const fs = require('fs');
 const { execFileSync } = require('child_process');
 const path = require('path');
diff --git a/scripts/run.js b/scripts/run.js
index 1b2477e8..5e4f053a 100644
--- a/scripts/run.js
+++ b/scripts/run.js
@@ -1,4 +1,7 @@
 #!/usr/bin/env node
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
 const { execFileSync } = require("child_process");
 const path = require("path");
 
diff --git a/scripts/skill-format-check/index.js b/scripts/skill-format-check/index.js
index 71b14f00..169ff3a7 100644
--- a/scripts/skill-format-check/index.js
+++ b/scripts/skill-format-check/index.js
@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
 const fs = require('fs');
 const path = require('path');