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mercadodevida/work/artifacts/F-029/documenter.md
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Documenter — F-029 Observability: traces and business metrics

Summary

Observability module provides Tracer/Meter abstractions with in-process no-op implementations, a /ops/metrics route for admin, and business metric instrumentation on the checkout path.

API

Route Access Result
GET /ops/metrics admin Returns metrics snapshot

Interfaces

  • Tracer.startSpan(name)/trace(name, fn)
  • Meter.counter/histogram

Evidence

  • work/artifacts/F-029/architect.md
  • work/artifacts/F-029/implementer.md
  • work/artifacts/F-029/reviewer.json
  • work/artifacts/F-029/security.json
  • work/artifacts/F-029/qa.json