firebase-development:debug
Firebase Debugging
Overview
This sub-skill guides systematic troubleshooting of Firebase development issues. It handles emulator problems, rules violations, function errors, auth issues, and deployment failures.
Key principles:
- Identify issue type first (emulator, rules, functions, auth, deployment)
- Use Emulator UI and Rules Playground for diagnosis
- Export emulator state before restarting
- Document issues and solutions for future reference
When This Sub-Skill Applies
- Emulators won't start or have port conflicts
- Getting Firestore rules violations (PERMISSION_DENIED)
- Cloud Functions returning errors or not executing
- Authentication not working in emulators
- Deployment fails with cryptic errors
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