Health Check Skill for Claude

> Run comprehensive health checks on the Claude Code Agent Monitor system. Validates dashboard API, database, WebSocket, hooks, and disk usage. Use to verify the monitoring setup is working correctly.

788 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

867

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/hoangsonww/Claude-Code-Agent-Monitor --skill health-check

The instruction itself

11 sections, as written by the author

Health Check

Run a comprehensive health check on the Agent Monitor system.

Input

The user provides: $ARGUMENTS

This may be:

"full" or empty (default: run all checks)
"quick" for a fast connectivity check
"deep" for extended checks including database integrity

Procedure

Run health checks in this order:

1. API Health

curl -sf http://localhost:4820/api/health

Verify HTTP 200 response
Check response time (<500ms expected, <1000ms acceptable)
Confirm JSON response body

2. Database Health

curl -sf http://localhost:4820/api/stats

Verify stats endpoint returns valid data
Check that counts are non-negative integers
Verify database file exists and has reasonable size

3. WebSocket Health

Check that the WebSocket server is listening
Verify WebSocket upgrade is supported on the dashboard port

4. API Endpoint Validation

Test each major endpoint:

curl -sf http://localhost:4820/api/sessions?limit=1
curl -sf http://localhost:4820/api/events?limit=1
curl -sf http://localhost:4820/api/analytics
curl -sf http://localhost:4820/api/pricing
curl -sf http://localhost:4820/api/settings/info

5. Hook Integration

Verify hook handler script exists
Check hooks are configured in ~/.claude/settings.json
Verify the handler script targets the correct dashboard URL

6. Disk & Resource Usage (deep mode only)

Database file size
Log file sizes (if any)
Available disk space
Node.js process memory usage (if accessible)

7. Data Freshness

Time since last event ingested
Time since last session created
Check for stale active sessions (active but no events in >1 hour)

Output Format

Present as a system health dashboard:

╔══════════════════════════════════════════════╗
║   AGENT MONITOR HEALTH CHECK                ║
║   Timestamp: 2025-04-11 12:00:00 UTC        ║
╠══════════════════════════════════════════════╣
║                                              ║
║   API Server ............ ✅ OK (45ms)       ║
║   Database .............. ✅ OK (2.4 MB)     ║
║   WebSocket ............. ✅ OK              ║
║   API Endpoints ......... ✅ 6/6 passing     ║
║   Hook Integration ...... ⚠️ 5/7 hooks      ║
║   Data Freshness ........ ✅ 3m ago          ║
║                                              ║
║   Overall: HEALTHY (5/6 checks passed)       ║
║                                              ║
╚══════════════════════════════════════════════╝

For any non-passing check, include detailed explanation and remediation steps below the dashboard.

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How to use it

Copy the folder

Take hoangsonww/health-check from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.