---
type: warning
name: semantic-cache-70-hit-rate-claim-was-unmeasured
confidence: Verified
source: .claude/CLAUDE.md
---

# Warning: Semantic cache 70% hit rate claim was unmeasured

## Condition

Telemetry data (`~/.attune/telemetry/usage.jsonl`, 17,264 requests) showed 0.2% hit rate and $0.26 saved out of $72

## Risk

Ignoring this guidance may cause: Semantic cache 70% hit rate claim was unmeasured

## Mitigation

1. Always verify performance claims against actual telemetry before documenting them

## Confidence

**Verified** — Confirmed by prior incident (Lessons Learned)

## Related Topics
- Error: Diagnostic help: Semantic cache 70% hit rate claim was unmeasured
