diff --git a/.github/workflows/claude-code-review.yml b/.github/workflows/claude-code-review.yml
new file mode 100644
index 00000000..e2835413
--- /dev/null
+++ b/.github/workflows/claude-code-review.yml
@@ -0,0 +1,41 @@
+name: Claude Code Review
+
+on:
+  pull_request:
+    types: [opened, synchronize, ready_for_review, reopened]
+
+jobs:
+  claude-review:
+    # Skip drafts, and PRs from forks (secrets are unavailable there).
+    if: |
+      github.event.pull_request.draft == false &&
+      github.event.pull_request.head.repo.full_name == github.repository
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: read
+      issues: read
+      id-token: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - name: Run Claude Code Review
+        uses: anthropics/claude-code-action@v1
+        with:
+          claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
+          prompt: |
+            REPO: ${{ github.repository }}
+            PR NUMBER: ${{ github.event.pull_request.number }}
+
+            請審查這個 pull request，重點放在：
+            - 正確性與潛在 bug
+            - 安全性問題
+            - 效能問題
+            - 缺少的測試或邊界情況
+
+            只回報有把握的問題，不要挑風格上的小事。
+            請用繁體中文，透過 `gh pr comment` 留下一則總結評論。
+          claude_args: '--allowed-tools "Bash(gh pr comment:*),Bash(gh pr diff:*),Bash(gh pr view:*)"'
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
new file mode 100644
index 00000000..82375888
--- /dev/null
+++ b/.github/workflows/claude.yml
@@ -0,0 +1,45 @@
+name: Claude Code
+
+on:
+  issue_comment:
+    types: [created]
+  pull_request_review_comment:
+    types: [created]
+  issues:
+    types: [opened, assigned]
+  pull_request_review:
+    types: [submitted]
+
+jobs:
+  claude:
+    # Public repo: only the owner / collaborators can trigger @claude.
+    if: |
+      (
+        (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude') &&
+          contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.comment.author_association)) ||
+        (github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude') &&
+          contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.comment.author_association)) ||
+        (github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude') &&
+          contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.review.author_association)) ||
+        (github.event_name == 'issues' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude')) &&
+          contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.issue.author_association))
+      )
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: read
+      issues: read
+      id-token: write
+      actions: read
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - name: Run Claude Code
+        uses: anthropics/claude-code-action@v1
+        with:
+          claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
+          additional_permissions: |
+            actions: read