Agent skill
api-tracing
Instrument API requests with spans and distributed tracing. Use when tracking request latency or debugging API issues.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/data/api-tracing
SKILL.md
API Tracing
Measure API requests and correlate with backend traces.
What to Capture (OTel-Compatible)
| Attribute | OTel Name | Purpose |
|---|---|---|
| Method | http.request.method |
GET, POST, etc. |
| Status | http.response.status_code |
Success/failure |
| URL | url.path |
Endpoint (sanitized) |
| Duration | http.request.duration |
Request time (ms) |
Using OTel naming now = easier migration later.
Key Thresholds
| Metric | Good | Acceptable | Poor |
|---|---|---|---|
| p50 | <200ms | <500ms | >500ms |
| p95 | <1s | <2s | >2s |
| Error rate | <0.1% | <1% | >1% |
What NOT to Log
| Don't | Why |
|---|---|
| Request bodies | PII risk |
| Auth headers | Security |
| Full response data | Size limits |
| User tokens | Security |
Do log: Request ID, sanitized path, status code, duration, error type.
Implementation
See templates/api-interceptor.ts for fetch/axios interceptors.
Use Read tool to load template when generating implementation.
Related
skills/error-tracking- API error handlingskills/route-transition-tracking- Data fetch during navigationreferences/otel-web.md- OpenTelemetry naming
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