Module skill 

Unified skill definition types.

Skills are reusable LLM instruction bundles that can be loaded from two formats:

• Legacy: skill.json metadata + prompt.md instructions (per the original SkillsLoader convention).
• SKILL.md: A single markdown file with YAML frontmatter containing metadata and the body containing LLM instructions.

The SkillDefinition struct is the unified representation regardless of source format.

Structs

SkillDefinition

Unified skill definition.

Enums

SkillFormat

How the skill was loaded.