skill-writer

To generate a SKILL.md file with YAML frontmatter, the Skill Writer validates frontmatter schema compliance and produces a complete, self-contained document with mandatory name and description fields for Copilot activation.

Validating and updating an existing SKILL.md involves applying linting rules and schema validation to ensure frontmatter compliance, producing in-place updates with deterministic output and built-in error reporting.

YAML frontmatter validation works by checking for mandatory name and description fields, enforcing schema compliance, and applying linting rules to ensure the SKILL.md meets activation requirements across repository updates.

Yes, you can use the Skill Writer to lint and fix activation rules across multiple Skill Units in a repository, as it applies validation and deterministic in-place updates with safe fallbacks to any repository containing Skill Units.

A SKILL.md may fail Copilot activation if the YAML frontmatter lacks mandatory fields or violates schema compliance, which the Skill Writer addresses through built-in validation, error reporting, and strict linting enforcement.

No dependencies or external components are required to create a compliant SKILL.md file, as the Skill Writer operates autonomously to generate self-contained skill bodies with minimal assumptions and safe fallbacks.