What problem does it solve? Over time, a repository's tracked AGENTS.md files accumulate bloat, stale references, duplicated guidance, and conflicting rules that degrade agent behavior. This Skill performs a periodic hygiene audit of the entire AGENTS.md tree and produces a structured review report. ## Core Features & Use Cases - Tree-wide audit: Enumerates all tracked AGENTS.md files and checks shape, lean-ness, specificity, hierarchy quality, conflicts, staleness, and task-state leakage. - Safe auto-fixes: Applies only trivial non-semantic hygiene fixes such as heading normalization, whitespace cleanup, and exact-duplicate deduping. - Structured report: Writes .agents/AGENTS_TREE_REVIEW.md with a status, AT# findings ordered by severity, and approval-gated proposals for compaction or sharding. - Use Case: After months of edits, run this audit to detect a bloated 300-line AGENTS.md, a parent/child conflict over test commands, and stale path references, then get a concrete cleanup plan. ## Quick Start Audit the tracked AGENTS.md tree in this repository and write the review report to .agents/AGENTS_TREE_REVIEW.md.