monitoring-expert
Monitoring and observability expert. Logging, metrics, error tracking, health checks. Use for production monitoring setup.
- Installs
- 42
- Last 24h
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- Trending rank
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- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/duck4nh/antigravity-kit --skill monitoring-expert- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads monitoring-expert automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Monitoring Expert
Logging (Node.js)
// Using Pino (fast)
import pino from 'pino';
const logger = pino({
level: process.env.LOG_LEVEL || 'info',
transport: process.env.NODE_ENV !== 'production'
? { target: 'pino-pretty' }
: undefined
});
// Usage
logger.info({ userId: 123 }, 'User logged in');
logger.error({ err, requestId }, 'Failed to process');
// Express middleware
import pinoHttp from 'pino-http';
app.use(pinoHttp({ logger }));
Error Tracking (Sentry)
import * as Sentry from '@sentry/node';
Sentry.init({
dsn: process.env.SENTRY_DSN,
environment: process.env.NODE_ENV,
tracesSampleRate: 0.1,
});
// Capture errors
try {
riskyOperation();
} catch (error) {
Sentry.captureException(error);
throw error;
}
// Express error handler
app.use(Sentry.Handlers.errorHandler());
Health Checks
// /health endpoint
app.get('/health', async (req, res) => {
const health = {
status: 'ok',
timestamp: new Date().toISOString(),
uptime: process.uptime(),
checks: {
database: await checkDatabase(),
redis: await checkRedis(),
}
};
const isHealthy = Object.values(health.checks).every(v => v === 'ok');
res.status(isHealthy ? 200 : 503).json(health);
});
async function checkDatabase() {
try {
await prisma.$queryRaw`SELECT 1`;
return 'ok';
} catch { return 'error'; }
}
Metrics (Prometheus)
import promClient from 'prom-client';
// Default metrics
promClient.collectDefaultMetrics();
// Custom metrics
const httpRequestDuration = new promClient.Histogram({
name: 'http_request_duration_seconds',
help: 'HTTP request duration',
labelNames: ['method', 'route', 'status'],
});
// Middleware
app.use((req, res, next) => {
const end = httpRequestDuration.startTimer();
res.on('finish', () => {
end({ method: req.method, route: req.path, status: res.statusCode });
});
next();
});
// Endpoint
app.get('/metrics', async (req, res) => {
res.set('Content-Type', promClient.register.contentType);
res.end(await promClient.register.metrics());
});
Quick Debug Commands
# Check logs
journalctl -u myapp -f --since "1 hour ago"
docker logs -f --tail 100 container_name
# Check resources
htop
df -h
free -m
# Network
netstat -tlnp
ss -tlnp
curl -I http://localhost:3000/health
FAQ
What does the monitoring-expert skill do?
Monitoring and observability expert. Logging, metrics, error tracking, health checks. Use for production monitoring setup.
How do I install monitoring-expert?
Run npx skills add https://github.com/duck4nh/antigravity-kit --skill monitoring-expert in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/monitoring-expert/ (personal) or .claude/skills/monitoring-expert/ (project).
Which AI agents can use monitoring-expert?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is monitoring-expert safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains monitoring-expert?
It is published by duck4nh in duck4nh/antigravity-kit. It has 42 recorded installs.
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