- In short
- A feedback loop is the judgment layer that sits above raw observability data. Observability produces signals such as latency, error rate, eval scores, and usage, but a signal alone is not a decision. The loop answers five questions in sequence -- signals (what is showing), triage (what needs attention), decide (what response is needed), act (what correction happens), and review (did it work) -- and it is what catches gradual drift that never trips a hard alert.
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