create-skill

To structure a SKILL.md for GSD workflows, use a router-based pattern with YAML frontmatter, an XML body, inline essential principles, an intake question, a routing table, and at least one workflow.

The router pattern for skill authoring separates SKILL.md, workflows, and references to ensure scalable development, consistent metadata, and progressive disclosure across GSD projects.

You validate YAML frontmatter and XML body structure by auditing your SKILL.md files against standardized GSD requirements, ensuring correct metadata, naming, and consistent routing behavior.

You do not need external dependencies to create standardized GSD skills; the process relies on internal scripts and references to enforce structure, validation, and discoverability.

The best way to organize new skills into workflows and references is applying the router pattern, separating core logic from detailed references to accelerate creation and ensure consistency.

You should audit SKILL.md files for progressive disclosure when upgrading existing skills to the router pattern, ensuring they enforce YAML frontmatter, XML structure, and metadata consistency.