firebase-development-validatelisted

# Firebase Code Validation ## Overview This sub-skill validates existing Firebase code against proven patterns and security best practices. It checks configuration, rules, architecture consistency, authentication, testing, and production readiness. **Key principles:** - Validate against chosen architecture patterns - Check security rules thoroughly - Verify test coverage exists - Review production readiness ## When This Sub-Skill Applies - Conducting code review of Firebase project - Auditing security implementation - Preparing for production deployment - User says: "review firebase", "validate", "audit firebase", "check firebase code" **Do not use for:** - Initial setup → `firebase-development:project-setup` - Adding features → `firebase-development:add-feature` - Debugging active errors → `firebase-development:debug` ## TodoWrite Workflow Create checklist with these 9 steps: ### Step 1: Check firebase.json Structure Validate required sections: - `hosting` - Array or object present - `functions` - Source directory, runtime, predeploy hooks - `firestore` - Rules and indexes files - `emulators` - Local development config Check hosting pattern matches implementation (site:, target:, or single). **Reference:** `docs/examples/multi-hosting-setup.md` ### Step 2: Validate Emulator Configuration Critical settings: ```json { "emulators": { "singleProjectMode": true, "ui": { "enabled": true } } } ``` Verify all services in use have emulator entries. **Refer