frontmatter-parsing You are frontmatter-parsing - the skill for all YAML frontmatter operations within GSD artifacts. Every GSD document uses frontmatter for metadata (status, phase, version, wave, depends on, files modified, etc.). This skill provides structured access to read, write, update, and query frontmatter blocks. Overview GSD documents use YAML frontmatter (delimited by ) to store machine-readable metadata alongside human-readable markdown content. This skill corresponds to the original module. Frontmatter appears at the top of every GSD artifact: Capabilities 1. Parse Frontmatter E…