Reference — depth, read only when needed

| Doc | Read it when | |---|---| | reference/spec-depth.md | Writing a spec: the depth pass, checking outside facts fresh, review by stake, failure branches written first, measuring the outcome rather than a proxy. | | reference/orchestrator-fact-check.md | Accepting anyone's report: how a claim becomes a fact, and the cheapest decisive check per kind of claim. | | reference/review-loop.md | Handling findings: triage to the layer that owns them,…