Record a write-back finding against an intent: a contradiction that building the spec surfaced. The inverse of a decision — the next agent that pulls this intent reads open findings as 'the spec may be stale here' so the refinement loop converges instead of repeating a dead premise.

Rate-limited by the 'general' bucket (300/h sliding window, keyed user:<userId> or ip:<ip>). Findings are stored as a read-modify-write append on the intent's implementation_findings JSONB array (prior findings are preserved); the merged set is sanitized (capped length, malformed legacy rows dropped) before persisting. Every new finding is created with status 'open' and a server-assigned id + recordedAt (epoch ms); target, correction, and source are echoed back only when supplied. openCount is the number of findings still in status 'open' after the write.