Restrict Claude workflow to same-repo PRs only

- Add condition: only run when PR head repo equals base repo
- This avoids permission errors on fork PRs
- Update prompt for same-repo PR context
- Claude can now successfully review and comment on PRs in your fork
- Fork PRs will be skipped entirely to avoid permission issues

Author: startergo

.github/workflows/claude-code-review.yml

@@ -13,13 +13,14 @@ on:
 
 permissions:
   contents: read
-  pull-requests: read
-  issues: read
+  pull-requests: write
+  issues: write
 
 jobs:
   claude-review:
-    # Run for all PRs including forks - use PAT for fork PR commenting
+    # Run only on same-repo PRs to avoid permission issues
     runs-on: ubuntu-latest
+    if: github.event.pull_request.head.repo.full_name == github.repository
 
     steps:
       - name: Debug PR info
@@ -47,7 +48,6 @@ jobs:
             REPO: ${{ github.event.pull_request.head.repo.full_name }}
             PR NUMBER: ${{ github.event.pull_request.number }}
             BASE REPO: ${{ github.repository }}
-            HAS_PAT: ${{ github.event.pull_request.head.repo.full_name == github.repository }}
 
             Please review this pull request and provide feedback on:
             - Code quality and best practices
@@ -58,10 +58,8 @@ jobs:
 
             Use the repository's CLAUDE.md for guidance on style and conventions. Be constructive and helpful in your feedback.
 
-            IMPORTANT: Commenting permissions:
-            - If this is a same-repo PR (HAS_PAT is true): Use \`gh pr comment ${{ github.event.pull_request.number }}\`
-            - If this is a fork PR (HAS_PAT is false): Cannot comment on PR - just review the code without commenting
-            - Only comment if you have write permissions to the repository
+            IMPORTANT: This is a same-repo PR, so you can comment using:
+            \`gh pr comment ${{ github.event.pull_request.number }}\`
 
           # See https://github.com/anthropics/claude-code-action/blob/main/docs/usage.md
           # or https://code.claude.com/docs/en/cli-reference for available options