Learn

Learn is an optional, off-path consumer of durable verdict.v2 collections. It may summarize recurring evidence and propose a candidate deterministic check for later human or caller evaluation.

Learn does not run during RPI, validate a subject, alter a verdict, mutate a plan, promote a rule, choose continuation, or mint lifecycle artifacts. Missing Learn output never changes whether a candidate is valid.

When invoked, bind every observation to verdict and finding digests, distinguish repeated objectives from repeated reviews of one objective, disclose the sample size, and stop at advisory evidence.

Overweight failures: a NOT_PROVEN or FAIL verdict carries more teaching value than a PASS, because it names a rule the loop lacked. Harvest kernels from failed lanes first — the canonical example is the mutating-check quarantine in skills/validate/SKILL.md, a durable rule minted from a NOT_PROVEN-then-PASS verdict pair.