task: lens-instrumentation
created: 2026-01-31
completed: 2026-01-31
phase: COMPLETE
before_count: 3
current_count: 0
summary: |
  Added #[instrument] to all 3 synchronous lens resolve() methods:
  - RecencyLens::resolve() in recency.rs
  - ConsensusLens::resolve() in consensus.rs
  - ConfidenceLens::resolve() in confidence.rs (renamed from AuthorityLens in Task 2.2)
  All 5 lens implementations (3 sync + 2 async) now instrumented.
  CLAUDE.md critical rule updated to include lens code.
  stemedb-lens skill updated with tracing pattern requirement.