This dataset contains deterministic, entirely synthetic webhook incident transcripts and replay-guard decisions from Replay Room. It is designed for conformance testing, reliability demonstrations, and tooling examples—not model benchmarking or production incident analysis. - incidents: six event transcripts with the expected deterministic diagnosis and duplicate-side-effect risk level. - replayguard: seven approval and rejection cases covering missing or failed rehearsal, payload drift, destination drift, operator context, and event state. Every destination uses the IANA-reserved.example domain. The build rejects signing secrets, credential-like headers, non-synthetic ingest keys…