team-monitor-marketplace

Team Monitor

Real-time dashboard for monitoring Claude Code agent team activity. When multiple agents collaborate — sending messages, creating tasks, editing files — this plugin captures everything and streams it to a live dashboard at localhost:5111.

What It Does

• Hooks into every tool call via Claude Code's PostToolUse event
• Classifies events into categories: communication, task management, tool use, lifecycle
• Stores everything in a local SQLite database (WAL mode for concurrent access)
• Streams live updates to a dark-themed browser dashboard via SSE
• Captures subagent activity by parsing transcripts when agents finish

Install

From GitHub

/plugin marketplace add GrillerGeek/team-monitor
/plugin install team-monitor@GrillerGeek/team-monitor

Register Hooks

The plugin requires hooks to be registered in your Claude Code settings. The first time you start the dashboard, this happens automatically. Or run it manually:

macOS / Linux:

python3 ~/.claude/plugins/cache/team-monitor-marketplace/team-monitor/1.0.0/scripts/install_hooks.py

Windows:

python %USERPROFILE%\.claude\plugins\cache\team-monitor-marketplace\team-monitor\1.0.0\scripts\install_hooks.py

Restart Claude Code after installing hooks.

For Development

claude --plugin-dir /path/to/team-monitor
python3 /path/to/team-monitor/scripts/install_hooks.py

Dependencies

Flask is auto-installed when you first start the dashboard. To install manually:

pip install flask

Usage

Start the Dashboard

/team-monitor

Then open http://localhost:5111 in your browser.

Stop the Dashboard

/team-monitor-stop

Check Status

/team-monitor-status

Natural Language

You can also just say "monitor my team" or "open the team dashboard" and the skill will trigger automatically.

Uninstall

To remove the hooks from your Claude Code settings:

macOS / Linux:

python3 /path/to/team-monitor/scripts/uninstall_hooks.py

Windows:

python /path/to/team-monitor/scripts/uninstall_hooks.py

Dashboard Features

• Agent Cards — one card per agent showing name, team, last activity, and event count
• Live Event Feed — reverse-chronological stream with color-coded category badges
  • Blue = communication (DMs, broadcasts, shutdown requests)
  • Green = task management (create, update, assign)
  • Orange = tool use (Bash, Edit, Write, Read, Grep, etc.)
  • Gray = lifecycle (agent stop, notifications)
• Event Detail — click any event to expand and see the full JSON payload
• Filters — filter by category, agent, or tool
• Stats Sidebar — total events, events/minute rate, category breakdown, most active agent

How It Works

Claude Code Hooks (PostToolUse, SubagentStart/Stop, Notification)
    │  stdin: JSON with tool_name, tool_input, session_id
    ▼
Hook Scripts (Python) ──► SQLite DB (WAL mode)  ◄── Flask Server
    │                      data/team_monitor.db        │
    ▼                                                  ▼
SSE Bridge (file-based) ────────────────────► Browser Dashboard
    data/sse_events/*.json                   localhost:5111

1. Claude Code fires a hook after every tool call in the lead session
2. The hook script classifies the event and writes it to SQLite
3. A small JSON notification file is written for the SSE bridge
4. When subagents finish, their transcripts are parsed to backfill all tool calls
5. The Flask server streams events to the browser via SSE
6. The dashboard updates in real time — no refresh needed

File Structure