Checkpoint Promotion The Phase 5 gate for the whole plugin: a checkpoint that trains cleanly and beats its task metric still doesn't ship without clearing all four stages below. built the suite re-run here — this skill is where that suite's baseline decides something. Input: a trained checkpoint, from , and the frozen . Output format: — the four-stage evidence plus a terminal or verdict that Phase 5 and consume directly. The Four-Stage Gate Each stage gates the next — a failure at stage 2 means stage 3 doesn't run. Stages 2 and 3 share one expensive inference pass, so running them concurrentl…