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vlados merged 2 commits into from
Oct 1, 2025
Merged

Add Claude Code GitHub Workflow #106

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9c36324
"Claude PR Assistant workflow"
vlados Oct 1, 2025
75bd1a8
"Claude Code Review workflow"
vlados Oct 1, 2025
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57 changes: 57 additions & 0 deletions .github/workflows/claude-code-review.yml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,57 @@
name: Claude Code Review

on:
pull_request:
types: [opened, synchronize]
# Optional: Only run on specific file changes
# paths:
# - "src/**/*.ts"
# - "src/**/*.tsx"
# - "src/**/*.js"
# - "src/**/*.jsx"

jobs:
claude-review:
# Optional: Filter by PR author
# if: |
# github.event.pull_request.user.login == 'external-contributor' ||
# github.event.pull_request.user.login == 'new-developer' ||
# github.event.pull_request.author_association == 'FIRST_TIME_CONTRIBUTOR'

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
id: claude-review
uses: anthropics/claude-code-action@v1
with:
claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
prompt: |
Comment on lines +3 to +39
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@coderabbitai coderabbitai bot Oct 1, 2025

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⚠️ Potential issue | 🟠 Major

Workflow fails on forked PRs

pull_request runs don’t receive repository secrets or an OIDC ID token when the PR comes from a fork, so this job will crash any time an external contributor opens or updates a PR (Claude can’t read CLAUDE_CODE_OAUTH_TOKEN, and the action already errors when ACTIONS_ID_TOKEN_REQUEST_URL is missing). That blocks reviews for exactly the PRs where we need them most.(docs.github.com)

Tighten the trigger to skip forks (or switch to pull_request_target with explicit hardening) so internal PRs still get auto-reviews without breaking community contributions:

   claude-review:
-    # Optional: Filter by PR author
-    # if: |
-    #   github.event.pull_request.user.login == 'external-contributor' ||
-    #   github.event.pull_request.user.login == 'new-developer' ||
-    #   github.event.pull_request.author_association == 'FIRST_TIME_CONTRIBUTOR'
+    if: ${{ github.event.pull_request.head.repo.fork == false }}

REPO: ${{ github.repository }}
PR NUMBER: ${{ github.event.pull_request.number }}

Please review this pull request and provide feedback on:
- Code quality and best practices
- Potential bugs or issues
- Performance considerations
- Security concerns
- Test coverage

Use the repository's CLAUDE.md for guidance on style and conventions. Be constructive and helpful in your feedback.

Use `gh pr comment` with your Bash tool to leave your review as a comment on the PR.

# See https://github.com/anthropics/claude-code-action/blob/main/docs/usage.md
# or https://docs.claude.com/en/docs/claude-code/sdk#command-line for available options
claude_args: '--allowed-tools "Bash(gh issue view:*),Bash(gh search:*),Bash(gh issue list:*),Bash(gh pr comment:*),Bash(gh pr diff:*),Bash(gh pr view:*),Bash(gh pr list:*)"'

50 changes: 50 additions & 0 deletions .github/workflows/claude.yml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,50 @@
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:
if: |
(github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) ||
(github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude')) ||
(github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude')) ||
(github.event_name == 'issues' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude')))
runs-on: ubuntu-latest
permissions:
contents: read
pull-requests: read
issues: read
id-token: write
actions: read # Required for Claude to read CI results on PRs
steps:
- name: Checkout repository
uses: actions/checkout@v4
with:
fetch-depth: 1

- name: Run Claude Code
id: claude
uses: anthropics/claude-code-action@v1
with:
claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}

# This is an optional setting that allows Claude to read CI results on PRs
additional_permissions: |
actions: read
Comment on lines +15 to +41
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@coderabbitai coderabbitai bot Oct 1, 2025

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⚠️ Potential issue | 🔴 Critical

Gate @claude runs to trusted commenters

As written, anyone who can comment or open an issue can mention @claude and trigger this job with full access to CLAUDE_CODE_OAUTH_TOKEN and the workflow’s write-capable token. GitHub runs issue_comment/pull_request_review_comment workflows in the base repo context, so secrets are exposed even when the commenter isn’t a collaborator, and the security team has repeatedly highlighted this as an escalation path.(docs.github.com)

Add an author-association gate (e.g., require MEMBER, OWNER, or COLLABORATOR) before running the Claude job so external users can’t exfiltrate repo secrets or co-opt Claude:

   claude:
-    if: |
-      (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) ||
-      (github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude')) ||
-      (github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude')) ||
-      (github.event_name == 'issues' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude')))
+    if: |
+      (
+        github.actor != '' &&
+        (
+          github.event.comment.author_association in ['OWNER','MEMBER','COLLABORATOR','MAINTAINER'] ||
+          github.event.issue.user.author_association in ['OWNER','MEMBER','COLLABORATOR','MAINTAINER']
+        )
+      ) &&
+      (
+        (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) ||
+        (github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude')) ||
+        (github.event_name == 'pull_request_review' && github.event.review.body != null && contains(github.event.review.body, '@claude')) ||
+        (github.event_name == 'issues' && (
+          (github.event.issue.body != null && contains(github.event.issue.body, '@claude')) ||
+          (github.event.issue.title != null && contains(github.event.issue.title, '@claude'))
+        ))
+      )

(Adjust the association list to match your contributor policy.)

Committable suggestion skipped: line range outside the PR's diff.

🤖 Prompt for AI Agents 
.github/workflows/claude.yml around lines 15-41: the workflow allows any
commenter to trigger the Claude job and expose secrets; add an
author-association gate to only allow trusted associations. Update the job
conditional to also require the commenter/reviewer/issue author to have an
allowed github.event.*.author_association value (e.g., MEMBER, OWNER,
COLLABORATOR) — for issue_comment and pull_request_review_comment use
github.event.comment.author_association, for pull_request_review use
github.event.review.user.author_association, and for issues use
github.event.issue.author_association — and ensure the if expression checks both
the presence of "@claude" and that the author_association is in the allowed list
before running the job.


# Optional: Give a custom prompt to Claude. If this is not specified, Claude will perform the instructions specified in the comment that tagged it.
# prompt: 'Update the pull request description to include a summary of changes.'

# Optional: Add claude_args to customize behavior and configuration
# See https://github.com/anthropics/claude-code-action/blob/main/docs/usage.md
# or https://docs.claude.com/en/docs/claude-code/sdk#command-line for available options
# claude_args: '--model claude-opus-4-1-20250805 --allowed-tools Bash(gh pr:*)'

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