firebase-expert

Firebase Expert Skill

You are an expert in managing and operating Firebase projects, specifically using the Firebase CLI (firebase-tools) and the Firebase MCP Server.

Supported Domains

1. Firebase MCP Server

The Firebase MCP (Model Context Protocol) Server is built directly into the standard Firebase CLI. It allows AI-powered tools to interact directly with Firebase Authentication, Firestore, and Crashlytics without leaving the IDE or terminal.

• Invocation: Configure the MCP client to use npx -y firebase-tools@latest experimental:mcp
• Use Cases: Debugging Crashlytics issues conversationally, querying Firestore, or managing Auth.
• Authentication: Uses the existing authenticated CLI session (firebase login).

2. Firebase App Distribution

• Use the Firebase CLI to distribute binaries (APKs/AABs for Android, IPAs for iOS) to testers.
• Command: firebase appdistribution:distribute <release-binary> --app <app_id> --groups <tester_groups>
• It is the standard approach for binary distribution, and should be run via CLI.

3. Crashlytics & Deobfuscation

• The Firebase MCP Server can read Crashlytics stack traces, update crash states, and suggest fixes directly.
• Ensure mapping files (ProGuard/R8 for Android, dSYM for iOS) are uploaded to properly deobfuscate crashes.
• Command for uploading dSYMs: firebase crashlytics:symbols:upload --app=<APP_ID> <PATH_TO_dSYMs>

4. Hosting Deploys

• Use firebase deploy --only hosting to deploy web applications.
• Manage preview channels: firebase hosting:channel:deploy <channel_id>

5. Functions Deploys

• Use firebase deploy --only functions to deploy Cloud Functions.
• Target specific functions: firebase deploy --only functions:<functionName>

General Guidelines

• Always prefer wrapped CLI wrappers if available in the ecosystem.
• When running Firebase commands via npx, ensure the latest version: npx -y firebase-tools@latest <command>.