4c

Claude Code Command Center (4c)

A Claude Code plugin that provides a local control center with event tracking, session management, and a web dashboard. Runs a Bun server on port 48900 that captures Claude Code hook events and provides a real-time dashboard.

Features

• Event tracking — Captures all Claude Code hook events (PreToolUse, PostToolUse, Stop, etc.) via HTTP POST
• Session viewer — Browse and filter sessions with full event history
• Web dashboard — Real-time React dashboard with charts, session graph, and registry explorer

Prerequisites

• Bun runtime (for the server and hooks)

Installation

From marketplace:

/plugin install 4c@claude-code-marketplace

From GitHub:

Add to ~/.claude/settings.json:

{
  "plugins": {
    "4c": {
      "source": {
        "source": "npm",
        "url": "https://github.com/EduCosta85/claude-code-comand-center"
      }
    }
  }
}

Post-install setup:

The plugin hooks auto-configure on install. To build the dashboard:

cd dashboard && npm install && npm run build

Start the server:

bun run server/index.ts

Usage

The server starts on http://localhost:48900.

Skills

Skill	Description
/4c:status	Show server status and recent event counts
/4c:sessions	List recent sessions
/4c:open	Open the dashboard in the browser

Hook integration

Add to your Claude Code hooks config to forward events automatically:

{
  "hooks": {
    "PreToolUse": [{ "command": "bun /path/to/control-center/hooks/send.ts" }],
    "PostToolUse": [{ "command": "bun /path/to/control-center/hooks/send.ts" }],
    "Stop": [{ "command": "bun /path/to/control-center/hooks/send.ts" }]
  }
}

Architecture

server/       Bun HTTP + WebSocket server (port 48900)
  index.ts    Request routing, WebSocket broadcast
  db.ts       SQLite persistence via bun:sqlite
  registry.ts Reads agents, skills, hooks, plugins from ~/.claude
  types.ts    Shared TypeScript types
dashboard/    React + Vite frontend
  src/        Components, pages, hooks
hooks/        Claude Code hook scripts
  send.ts     Forwards hook events to the server
skills/       Claude Code skill definitions
  status/     /4c:status skill
  sessions/   /4c:sessions skill
  open/       /4c:open skill

Events are stored in ~/.claude/control-center/events.db (SQLite).

License

MIT