markdown-post-frontmatter-validation

What problem does it solve?

This skill prevents broken static-site builds by validating Markdown post YAML frontmatter against your content contract so missing or inconsistent metadata is caught immediately.

Core Features & Use Cases

• Required-field enforcement: Ensures every post declares title, date, slug, and tags and fails fast when any are missing.
• Date, slug, and tag correctness: Rejects ambiguous dates without explicit timezone, flags slug that does not match the file path, and enforces a controlled tag vocabulary.
• Reserved-field protection and schema evolution: Blocks underscore-prefixed author fields and re-validates posts when the schema changes so violations surface before the next build.

Quick Start

Use this skill to validate the frontmatter of a new content/posts markdown file against the repository’s frontmatter schema and tagging rules.