How do I install the Firebase Basics skill?

Run npx skillmds@latest add kumaran-is/firebase-basics in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

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Is Firebase Basics free to use?

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Who published Firebase Basics?

kumaran-is (@kumaran-is) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Firebase Basics by kumaran-is — Agent Skill

Name: Firebase Basics
Author: kumaran-is

Firebase Basics

Firebase CLI foundation for any project. Use when checking Firebase CLI version, authenticating with Firebase, setting active projects, initializing Firebase services, or running Firebase MCP commands. Triggers: firebase login, firebase use, firebase projects list, firebase init, firebase MCP, Firebase CLI setup, Firebase emulator start.

kumaran-is afa888b 2.6 KB Updated Sep 17, 2026

File contents

Iron Law

NEVER use the naked firebase binary — always npx -y firebase-tools@latest <cmd>.

This guarantees the latest CLI version is used without polluting global node_modules. Every command in this skill prepends npx -y firebase-tools@latest.

Project Context

Check the project's CLAUDE.md to understand which Firebase services are in use and any project-specific constraints (e.g. which services are intentionally NOT used, whether Firestore is used as a canonical store or a status bus only, etc.).

Firebase project ID should be stored in an environment variable (e.g. FIREBASE_PROJECT_ID) — never hardcoded.

Prerequisites

Local Environment Setup:
```
npx -y firebase-tools@latest --version
```
Read references/local-env-setup.md for full setup.

Authentication:

npx -y firebase-tools@latest login
# Headless / remote shell:
npx -y firebase-tools@latest login --no-localhost

Active Project:

npx -y firebase-tools@latest use
# Set project from env var (preferred):
npx -y firebase-tools@latest use --add ${FIREBASE_PROJECT_ID}

Firebase Usage Principles

npx always: npx -y firebase-tools@latest <cmd> — never bare firebase
Consult Firebase MCP first: Use developerknowledge_search_documents before falling back to web search or memory
Use Firebase MCP tools for remote API calls: Crashlytics, Firestore queries, project management — always MCP, never manual REST calls
Emulator for local dev: Set FIREBASE_AUTH_EMULATOR_HOST and related emulator environment variables — without them, Admin SDK calls hit production Firebase with dev tokens

References

Initialize services: references/firebase-service-init.md
CLI commands: references/firebase-cli-guide.md
Local env setup: references/local-env-setup.md

Related Skills

flutter-mobile — Firebase Auth integration in Flutter apps
firebase-hosting-basics — deploy static SPA to Firebase Hosting
security-reviewer — Firestore Security Rules audit

---name: firebase-basicsdescription: Firebase CLI foundation for any project. Use when checking Firebase CLI version, authenticating with Firebase, setting active projects, initializing Firebase services, or running Firebase MCP commands. Triggers: firebase login, firebase use, firebase projects list, firebase init, firebase MCP, Firebase CLI setup, Firebase emulator start.---## Iron Law**NEVER use the naked `firebase` binary — always `npx -y firebase-tools@latest <cmd>`.**This guarantees the latest CLI version is used without polluting global node_modules.Every command in this skill prepends `npx -y firebase-tools@latest`.## Project ContextCheck the project's `CLAUDE.md` to understand which Firebase services are in use and anyproject-specific constraints (e.g. which services are intentionally NOT used, whetherFirestore is used as a canonical store or a status bus only, etc.).Firebase project ID should be stored in an environment variable (e.g. `FIREBASE_PROJECT_ID`)— never hardcoded.# Prerequisites1. **Local Environment Setup:** ```bash npx -y firebase-tools@latest --version ``` Read [references/local-env-setup.md](references/local-env-setup.md) for full setup.2. **Authentication:** ```bash npx -y firebase-tools@latest login # Headless / remote shell: npx -y firebase-tools@latest login --no-localhost ```3. **Active Project:** ```bash npx -y firebase-tools@latest use # Set project from env var (preferred): npx -y firebase-tools@latest use --add ${FIREBASE_PROJECT_ID} ```# Firebase Usage Principles1. **npx always:** `npx -y firebase-tools@latest <cmd>` — never bare `firebase`2. **Consult Firebase MCP first:** Use `developerknowledge_search_documents` before falling back to web search or memory3. **Use Firebase MCP tools for remote API calls:** Crashlytics, Firestore queries, project management — always MCP, never manual REST calls4. **Emulator for local dev:** Set `FIREBASE_AUTH_EMULATOR_HOST` and related emulator environment variables — without them, Admin SDK calls hit production Firebase with dev tokens# References- **Initialize services:** [references/firebase-service-init.md](references/firebase-service-init.md)- **CLI commands:** [references/firebase-cli-guide.md](references/firebase-cli-guide.md)- **Local env setup:** [references/local-env-setup.md](references/local-env-setup.md)# Related Skills- `flutter-mobile` — Firebase Auth integration in Flutter apps- `firebase-hosting-basics` — deploy static SPA to Firebase Hosting- `security-reviewer` — Firestore Security Rules audit

Frequently asked questions