YAML Frontmatter Parser

YAML frontmatter parsing extracts metadata blocks delimited by --- from the top of Markdown files. This Skill retrieves key-value pairs, arrays, booleans, and numbers from frontmatter, returning a typed object with validated fields like name, description, version, and author for safe metadata consumption downstream.

Frontmatter validation enforces required fields such as name and description, checks type correctness for skill and agent metadata, and surfaces identifiers, versions, authors, and tags. Invalid or missing fields are caught before metadata is loaded into tooling, preventing configuration errors.

Yes. This Skill applies frontmatter parsing across multiple repositories to extract, validate, and surface identifiers, descriptions, versions, authors, tags, and dependencies in a consistent, typed format suitable for downstream tooling and metadata indexing.

YAML frontmatter parsing handles quoted strings, inline comments, and array syntax natively. The lightweight parser processes simple key-value pairs, booleans, numbers, and lists, returning structured data without breaking on common YAML formatting patterns.

The parser returns null when frontmatter is absent or structurally invalid, and validation fails when required fields like name or description are missing. This prevents broken metadata from propagating and signals configuration issues early.

Yes. The parser extracts and validates all metadata fields including dependencies and tool restrictions from skill and agent frontmatter, ensuring complete metadata objects are available for downstream systems that enforce access control and dependency management.