abyss-stack

Capture, diagnose, review, or prepare a bounded diagnosis/repair handoff for one concrete Abyss runtime target through the abyss-stack diagnostic spine. Use for a named preset, profile, truth goal, or diagnostic_session_v1. Review current or supplied owner evidence with last-good, drift, or freshness classification. Do not use for generic health questions, artifact trust/source disputes, actual repair/restart/approval, session mining, or tasks needing no runtime evidence.