What problem does it solve? Pull requests in the mj-agent project must satisfy a multi-framework documentation quality gate (Meta v2.1, Code_Side v1.1, Agent_Side v1.1), and manually verifying INDEX.md sync, CLAUDE.md tri-track sync, cross-reference integrity, and PR description structure is error-prone and slow. ## Core Features & Use Cases - PR-scope documentation checklist: Classifies changed files via git diff, then checks A1-A14 quality gate items across code-side, agent-side, and engineering-workflow tracks. - Cross-reference and sync validation: Detects broken wikilinks, missing INDEX.md entries, stale updated fields, and CLAUDE.md tri-track desync, including in-source canonical SKILL.md back-scans. - §4.7 dual-section PR description check: Verifies the PR body separates objective local verification from AI self-check content without mixing. - Use Case: Before merging a docs-touching PR, run this skill to produce a structured A1-A14 checklist with PASS/WARN/FAIL verdicts and an overall Approve or Changes Requested judgment. ## Quick Start Ask the assistant to review the current pull request's documentation completeness against the A1-A14 quality gate and output the PR documentation checklist.