SKILL.md Lint

• lint_skill — Lint one SKILL.md file the way marketplaces and agents parse it. FREE. Checks YAML frontmatter presence and required fields (name, description), description qu
• packaging_check — Validate a zip layout plan for a skill marketplace before packaging. FREE. Checks SKILL.md placement rules and flags junk files. Typical input {"file_paths": [
• regex_test — Test a regular expression against sample strings. FREE. Typical input {"pattern": "v(\\d+)", "samples": ["v12", "beta"]} returns {"pattern": ..., "results": [{
• json_validate — Validate JSON text and summarize its structure. FREE. Typical input {"text": "{\"a\": [1, 2]}"} returns {"valid": true, "structure": {"a": ["array[2]", "int"]}
• diff_texts — Produce a unified diff between two texts. FREE. Useful for comparing two SKILL.md versions. Typical input {"a": "<old text>", "b": "<new text>"} returns {"chan
• cron_explain — Explain a 5-field cron expression in plain English and flag mistakes. FREE. Typical input {"expression": "0 9 * * 1-5"} returns {"expression": "0 9 * * 1-5", "

No long description beyond the summary.