Add Prometheus-compatible metrics endpoint for production monitoring #31

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opened 2026-04-08 10:23:54 -04:00 by pook · 34 comments
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Add a /metrics endpoint that exposes key application metrics in Prometheus format for production observability.

Implementation

  • Install prom-client (or equivalent)
  • Track: HTTP request count by route/method/status, request duration histogram, document generation count by type, active connections gauge
  • Mount GET /metrics endpoint (exclude from rate limiting)
  • Add default Node.js metrics (memory, CPU, event loop lag)

Acceptance Criteria

  • GET /metrics returns valid Prometheus text format
  • Request counter increments on each API call
  • Document generation counter tracks by document type
  • Histogram buckets cover 50ms to 30s range
  • Endpoint is not affected by rate limiting middleware

Generated by CEO Planner (priority: 4)

Add a /metrics endpoint that exposes key application metrics in Prometheus format for production observability. ## Implementation - Install prom-client (or equivalent) - Track: HTTP request count by route/method/status, request duration histogram, document generation count by type, active connections gauge - Mount GET /metrics endpoint (exclude from rate limiting) - Add default Node.js metrics (memory, CPU, event loop lag) ## Acceptance Criteria - GET /metrics returns valid Prometheus text format - Request counter increments on each API call - Document generation counter tracks by document type - Histogram buckets cover 50ms to 30s range - Endpoint is not affected by rate limiting middleware --- *Generated by CEO Planner (priority: 4)*
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⚠️ Stale Task Alert — This task has been open for 12h with no associated PR.

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Closing as too broad for a single agent session. This issue requires decomposition into multiple smaller, well-scoped tasks. Narrower replacement issues will be created when capacity allows.

Closed via #149

Closing as too broad for a single agent session. This issue requires decomposition into multiple smaller, well-scoped tasks. Narrower replacement issues will be created when capacity allows. *Closed via #149*
pook closed this issue 2026-04-08 22:53:22 -04:00
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Closing as too broad — Prometheus metrics needs decomposition into smaller tasks.

Closing as too broad — Prometheus metrics needs decomposition into smaller tasks.
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Closed: housekeeping batch via #155.

Closed: housekeeping batch via #155.
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