# Firebase Basics > Configura la base de Firebase: instala/verifica la CLI, gestiona login (incl. --no-localhost), crea o selecciona proyectos y descarga los archivos de configuración de la app. Fuente: https://skillsagentes.com/skills/firebase/agent-skills/firebase-basics Markdown: https://skillsagentes.com/skills/firebase/agent-skills/firebase-basics.md Repositorio: https://github.com/firebase/agent-skills Autor: firebase Licencia: Apache-2.0 Actualizado: el mes pasado Coste de contexto: 122 tok instalada, 1.8k tok al activarse, 12k tok con todos los archivos del bundle Bundle: 20 archivos, 47 KB Permisos que pide: ninguno declarado ## Instalación Un skill son archivos markdown: los mismos archivos valen para cualquier agente y lo único que cambia es el directorio de destino, es decir la bandera `--agent`. Añade `-g` para instalarlo en todos los proyectos de la máquina. ```bash # Claude Code npx -y skills add firebase/agent-skills --skill firebase-basics --agent claude-code # Cursor npx -y skills add firebase/agent-skills --skill firebase-basics --agent cursor # Codex npx -y skills add firebase/agent-skills --skill firebase-basics --agent codex # Gemini CLI npx -y skills add firebase/agent-skills --skill firebase-basics --agent gemini # Windsurf npx -y skills add firebase/agent-skills --skill firebase-basics --agent windsurf # Cline npx -y skills add firebase/agent-skills --skill firebase-basics --agent cline ``` ## Qué hace - Verifica e instala la Firebase CLI mediante npx - Gestiona el login de Firebase, incluyendo el modo --no-localhost para entornos sin navegador - Crea o selecciona el proyecto Firebase activo con firebase use - Descarga google-services.json y GoogleService-Info.plist con firebase-tools apps:sdkconfig ## Cuándo usarla - Necesitas hacer login en Firebase o verificar la sesión activa - Vas a crear un nuevo proyecto Firebase o cambiar al proyecto correcto - Necesitas obtener los archivos de configuración de la app para Android o iOS ## Cuándo no - Para desplegar en Firebase Hosting - Para trabajar con Firestore, Auth, App Hosting, Data Connect, Crashlytics o Remote Config ## Qué la activa - "Ayúdame a iniciar sesión en Firebase CLI" - "Crea un nuevo proyecto de Firebase" - "Cambia al proyecto Firebase con ID mi-proyecto" - "Descárgame el google-services.json para mi app Android" ## Antes de instalar - Requiere Node.js/npx para ejecutar firebase-tools@latest y una cuenta de Firebase para autenticarse. ## Archivos - SKILL.md — 7 KB - references/android_setup.md — 2 KB - references/firebase-cli-guide.md — 464 B - references/firebase-service-init.md — 692 B - references/flutter_setup.md — 5 KB - references/ios_setup.md — 4 KB - references/local-env-setup.md — 3 KB - references/refresh/android_studio.md — 1 KB - references/refresh/antigravity.md — 2 KB - references/refresh/claude.md — 380 B - references/refresh/gemini-cli.md — 482 B - references/refresh/other-agents.md — 2 KB - references/setup/android_studio.md — 658 B - references/setup/antigravity.md — 3 KB - references/setup/claude_code.md — 2 KB - references/setup/cursor.md — 3 KB - references/setup/gemini_cli.md — 2 KB - references/setup/github_copilot.md — 3 KB - references/setup/other_agents.md — 3 KB - references/web_setup.md — 2 KB ## SKILL.md Reproducido tal cual desde firebase/agent-skills bajo Apache-2.0. Esta sección es el documento original y está en inglés. # Prerequisites Complete these setup steps before proceeding: 1. **Local Environment Setup:** Verify the environment is properly set up so we can use Firebase tools: - Run `npx -y firebase-tools@latest --version` to check if the Firebase CLI is installed. - Verify if the Firebase MCP server is installed using your existing tools. - **CRITICAL**: Before configuring any extensions or agent environments below, you MUST read [references/local-env-setup.md](references/local-env-setup.md). - **DO NOT SKIP** this step: if 'firebase-basics' is the only Firebase skill available to you, you must follow the reference for your agent environment to set up the full suite of Firebase skills: - **Gemini CLI**: Review [references/setup/gemini_cli.md](references/setup/gemini_cli.md) - **Antigravity**: Review [references/setup/antigravity.md](references/setup/antigravity.md) - **Android Studio**: Review [references/setup/android_studio.md](references/setup/android_studio.md) - **Claude Code**: Review [references/setup/claude_code.md](references/setup/claude_code.md) - **Cursor**: Review [references/setup/cursor.md](references/setup/cursor.md) - **GitHub Copilot**: Review [references/setup/github_copilot.md](references/setup/github_copilot.md) - **Other Agents**: Review [references/setup/other_agents.md](references/setup/other_agents.md) 1. **Authentication:** Ensure you are logged in to Firebase so that commands have the correct permissions. Run `npx -y firebase-tools@latest login`. For environments without a browser (e.g., remote shells), use `npx -y firebase-tools@latest login --no-localhost`. - The command should output the current user. - If you are not logged in, follow the interactive instructions from this command to authenticate. 1. **Active Project:** Most Firebase tasks require an active project context. > [!IMPORTANT] **For Agents:** Before proceeding with project configuration, > you MUST pause and ask the developer if they prefer to: > > 1. **Provide an existing Firebase Project ID**, or > 1. **Create a new Firebase project**. - **If using an existing Project ID:** 1. Check the current project by running `npx -y firebase-tools@latest use`. 1. If the command outputs `Active Project: `, confirm with the user if this is the intended project. 1. If not, or if no project is active, set the project provided by the user: ```bash npx -y firebase-tools@latest use ``` - **If creating a new project:** Run the following command to create it: ```bash npx -y firebase-tools@latest projects:create --display-name "" ``` *Note: The `` must be 6-30 characters, lowercase, and can contain digits and hyphens. It must be globally unique.* # Firebase Usage Principles Adhere to these principles: 1. **Use npx for CLI commands:** To ensure you always use the latest version of the Firebase CLI, always prepend commands with `npx -y firebase-tools@latest` instead of just `firebase`. For example, use `npx -y firebase-tools@latest --version`. NEVER suggest the naked `firebase` command as an alternative. 1. **Prioritize official knowledge:** For any Firebase-related knowledge, consult the `developerknowledge_search_documents` MCP tool before falling back to Google Search or your internal knowledge base. Including "Firebase" in your search query significantly improves relevance. 1. **Follow Agent Skills for implementation guidance:** Skills provide opinionated workflows (CUJs), security rules, and best practices. Always consult them to understand *how* to implement Firebase features correctly instead of relying on general knowledge. 1. **Use Firebase MCP Server tools instead of direct API calls:** Whenever you need to interact with remote Firebase APIs (such as fetching Crashlytics logs or executing Data Connect queries), use the tools provided by the Firebase MCP Server instead of attempting manual API calls. 1. **Keep Plugin / Agent Skills updated:** Since Firebase best practices evolve quickly, regularly check for and install updates to their Firebase plugin or Agent Skills. Similarly, if you encounter issues with outdated tools or commands, follow the steps below based on your agent environment: - **Antigravity**: Follow [references/refresh/antigravity.md](references/refresh/antigravity.md) - **Gemini CLI**: Follow [references/refresh/gemini-cli.md](references/refresh/gemini-cli.md) - **Claude Code**: Follow [references/refresh/claude.md](references/refresh/claude.md) - **Cursor**: Follow [references/refresh/other-agents.md](references/refresh/other-agents.md) - **Android Studio**: Follow [references/refresh/android_studio.md](references/refresh/android_studio.md) - **Others**: Follow [references/refresh/other-agents.md](references/refresh/other-agents.md) 1. **Automate Config File Retrieval:** When setting up iOS or Android apps, do NOT direct users to the Firebase Console to download `google-services.json` or `GoogleService-Info.plist`. Instead, use the Firebase CLI to fetch the config programmatically: - For Android: `npx -y firebase-tools@latest apps:sdkconfig ANDROID --project ` - For iOS: `npx -y firebase-tools@latest apps:sdkconfig IOS --project ` Save the output to the appropriate location (e.g., `app/google-services.json` for Android, or a path to be linked by `xcode-project-setup` for iOS). # References - **Initialize Firebase:** See [references/firebase-service-init.md](references/firebase-service-init.md) when you need to initialize new Firebase services using the CLI. - **Exploring Commands:** See [references/firebase-cli-guide.md](references/firebase-cli-guide.md) to discover and understand CLI functionality. - **SDK Setup:** For detailed guides on adding Firebase to your app: - **Web**: See [references/web_setup.md](references/web_setup.md) - **Android**: See [references/android_setup.md](references/android_setup.md) - **iOS**: See [references/ios_setup.md](references/ios_setup.md) # Common Issues - **Login Issues:** If the browser fails to open during the login step, use `npx -y firebase-tools@latest login --no-localhost` instead. - **Genkit:** If using Genkit, install the skills: ```bash npx skills add genkit-ai/skills ``` ## Dónde encaja - Categoría: [DevOps e infraestructura](https://skillsagentes.com/categorias/devops-infraestructura.md) — Despliegues, contenedores, IaC y flujos de gestión de incidentes. - Creador: [firebase](https://skillsagentes.com/creators/firebase.md) — 12 skills en el directorio - [Todas las skills](https://skillsagentes.com/skills.md) - [Ranking de instalaciones](https://skillsagentes.com/ranking.md) --- Skills Agentes · [Índice de páginas en markdown](https://skillsagentes.com/sitemap.md) · [Inicio](https://skillsagentes.com/index.md)