OptionalallowedOptional experimental feature: list of allowed tool IDs
OptionalcompatibilityOptional version constraint for compatibility
Human-readable description of the skill, max 1024 characters
OptionallicenseOptional SPDX license identifier
Absolute file path to the SKILL.md file
OptionalmetadataOptional key-value pairs for additional metadata
Unique identifier, must match directory name, lowercase kebab-case with digits allowed
What the runtime and the model address this skill by: name for a built-in root,
<qualifier>:<name> for a contributed one. Unlike name this is unique across all discovered
skills, which is why it keys the registry.
Full skill representation including location.