feat: add MCP server for DABubble Firebase data

[Copilot]

Adds a standalone Model Context Protocol (MCP) server (mcp/) that exposes DABubble's Firestore data to AI assistants (Claude Desktop, Cursor, VS Code Copilot, etc.) over stdio.

Tools exposed

Tool	Description
list_channels	All channels with member count + last-message timestamp
get_channel_messages	Recent messages from a channel (up to 50)
send_channel_message	Post a text message to a channel
list_users	All users with online status
get_user	Full user profile by UID
list_direct_message_conversations	DM conversations for a given user
get_direct_messages	Recent messages from a DM conversation
send_direct_message	Post a message to a DM conversation
search_messages	Keyword search across all channel messages

Structure

• mcp/ – self-contained TypeScript package; @modelcontextprotocol/sdk + firebase-admin + zod
  • src/firebase/admin.ts – Firebase Admin init via FIREBASE_PROJECT_ID / GOOGLE_APPLICATION_CREDENTIALS env vars (no secrets in source)
  • src/tools/ – one module per domain: channels, users, direct-messages, search
  • src/index.ts – wires tools to McpServer + StdioServerTransport
• .vscode/mcp.json – dabubble server entry so VS Code Copilot auto-discovers it
• README.md – new MCP section with tool table; full setup docs in mcp/README.md
• .gitignore – excludes mcp/node_modules and mcp/lib

Quick start

cd mcp && npm install && npm run build

# set env vars, then connect from any MCP host
FIREBASE_PROJECT_ID=your-project node lib/index.js

Original prompt

was kann ich mit dir machen als mcp schnittstelle

Created from VS Code.

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