# Cache Miss Request Sequence

Frontend request path with auth, cache fallback, persistence, and async trace

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### Happy Path

- • The main request is Web App -> API -> data source -> response
- • Return messages are quieter than forward calls
- • Activation bars make ownership duration visible

### Policy + Fallback

- • JWT verification is colored as a security interaction
- • Cache miss is visible without overpowering the main path
- • Database access only appears after cache fallback

### Async Trace

- • Trace emission is dashed and secondary
- • It does not block the response path
- • The diagram separates user-facing latency from observability