Diagnose harness misbehavior from the flight recorder — the local, append-only ledger at that vigiles writes as your harness runs. It records what actually happened, so you debug from evidence instead of guessing. What's in the ledger One JSON record per line, each with a : - — a compiled-hook gate decision: . - — a subagent tool-contract decision: (a = the agent went outside its lane). - — a skill activation: . - — a measured metric: (e.g. trigger-rate recall/precision). - — a blast-radius change: . Instructions Step 1: Read the ledger Read (JSONL — one record per line; tolerate a torn last…