A stress-test gate that runs between planning and implementation to catch bad specs before you waste days coding them. Mandatory for epics with 3+ issues, though you can skip it with a flag. Quick mode runs inline and catches real bugs at 10% of full council cost. Deep mode spawns four judges focused on missing requirements, feasibility gotchas, scope creep, and spec completeness. It pulls in past learnings from your findings registry and checks wave-validity rows so you know if slices can run parallel or will collide. Six consecutive epics showed positive ROI. The council fail-patterns reference draws from 124 analyzed failures across 946 sessions, which is the kind of compiled prevention that actually moves the needle.
npx skills add https://github.com/boshu2/agentops --skill pre-mortem