moonrunnerkc / skillcheck Star 1 Code Issues Pull requests Cross-agent skill quality gate for SKILL.md files. Validates frontmatter, scores description discoverability, checks file references, enforces three-tier token budgets, and flags compatibility issues across Claude Code, VS Code/Copilot, Codex, and Cursor. python cli validation linter static-analysis vscode developer-tools cursor copilot codex quality-gate progressive-disclosure claude-code cross-agent token-budget agentskills skill-md agentskills-io description-scoring Updated Mar 12, 2026 Python