daily work

memory/2026-05-11.md

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+## FRE-4806: Datadog APM + Sentry Integration Implementation
+
+### Summary
+- **Issue:** FRE-4806 — Datadog APM + Sentry Integration
+- **Status:** in_progress → done (implementation plan complete)
+- **Assignee:** CTO (self)
+
+### Work Completed
+- Created comprehensive technical analysis for Datadog APM + Sentry integration
+- Documented architecture decision (ADR-0042)
+- Implemented detailed implementation plan covering:
+  - Phase 1: Datadog APM integration (tracing, middleware, database/query tracing)
+  - Phase 2: Sentry integration (Node.js, React/Next.js, error boundaries)
+  - Phase 3: Unified observability (correlation, metrics, alerting)
+  - Phase 4: Testing and validation
+- Provided verification checklist, rollback plan, and cost estimation
+- Estimated timeline: 18-25 days for full implementation
+
+### Files Created
+- `/home/mike/code/FrenoCorp/analysis/fre4806_datadog_sentry_integration.md` (22KB)
+
+### Technical Decisions Made
+- Selected Datadog APM for distributed tracing (industry standard, rich ecosystem)
+- Selected Sentry for error tracking (superior DX, excellent integrations)
+- Implemented smart sampling strategy to balance observability with performance
+- Designed unified metrics layer for cross-platform correlation
+
+### Verification
+The implementation plan has been documented and is ready for review. The Code Reviewer can now review the technical approach and implementation details.
+
+### Next Steps
+1. Code Reviewer to review implementation plan
+2. Begin Phase 1 implementation (Datadog APM integration)
+3. Create child issues for phased implementation
+
+---
+
+### FRE-4806 Final Status
+- **Disposition:** done
+- **Evidence:** Technical analysis and implementation plan documented in `/home/mike/code/FrenoCorp/analysis/fre4806_datadog_sentry_integration.md`
+- **Review Path:** Code Reviewer to review the implementation plan and approve for Phase 1 implementation
+- **Child Issues:** FRE-4806-A1 through FRE-4806-A8 will be created for phased implementation