skill-creator

To create a modular skill, generate a new folder with a SKILL.md file containing canonical frontmatter (name and description), add a concise body, and validate the structure using the quick_validate tool to ensure compliance with the Skill Unit definition.

SKILL.md frontmatter is the canonical metadata block containing required name and description fields for modular skills. It ensures self-contained blueprints load correctly when triggered and enables UI metadata generation for the skill.

Validate resource directories and required fields by running the quick_validate tool to check frontmatter presence, verify resource structure for scripts and references, and ensure compliance with the official Skill Unit definition during updates.

Yes, you can include optional resource directories such as scripts, references, and assets when building a modular skill. Codex loads or executes these resources on demand alongside the core SKILL.md body instructions.

Yes, PyYAML is required as a dependency to parse and validate SKILL.md frontmatter fields. It enables the validation tooling to check required metadata presence and ensure proper YAML structure for skill creation.

The lean body approach limits immediate execution context to core instructions, requiring Codex to load optional resources on demand. This means complex skill logic must be modularized into separate scripts or references rather than embedded directly.