Validate AGENTS.md

Purpose

Validate AGENTS.md files to ensure they are concise, operationally complete, and aligned with repository structure and governance.

When To Use

• Use this skill when adding or updating root or nested AGENTS.md files.
• Use this skill before accepting AGENTS policy changes.
• Do not use this skill for user/project instruction validation.

How to Invoke

Load or attach this file's contents into your AI session to activate the workflow (paste, upload, or reference with #file:skills/validate-agents-md/SKILL.md in VS Code Copilot Chat). In Claude Projects, add it to project knowledge. See Invoking Skills in the README for full platform guidance.

Required Inputs

• Target AGENTS.md path.
• Repository path context for link/path validation.
• Policy expectations for session-state and command namespace.

Workflow

1. Run validation phases from references/phase-checks.md.
2. Check for <!-- spec_version: ... --> comment: flag as WARNING if absent (pre-existing files may predate this requirement); flag as WARNING if present but older than 1.5.0.
3. Generate report using references/report-contract.md.
4. Apply deterministic scoring from references/scoring.md.
5. Classify findings into critical/warning/enhancement buckets.
6. Provide concrete fixes for operational contract gaps.

Output Expectations

• Structured markdown report with five validation phases.
• Compliance score and pass band.
• Explicit list of critical issues, warnings, and enhancements.
• Example fixes for common structural and policy failures.
• Report schema follows references/report-contract.md.
• Scoring and grade bands follow references/scoring.md.

Resources

• Phase checks: references/phase-checks.md
• Report contract: references/report-contract.md
• Scoring model: references/scoring.md
• Example target: ../../AGENTS.md

Constraints And Safety

• Keep the scoring rubric deterministic; findings should be repository-specific and actionable.
• Avoid over-prescriptive style-only feedback.
• Preserve provider-neutral language.
• Do not duplicate full normative specs when suggesting fixes.