skill-creator

Create cross-platform agent skills by enforcing YAML frontmatter with required fields and keeping the core SKILL.md under 500 lines. This open-standard approach ensures compatibility across Claude, GitHub Copilot, Cursor, Windsurf, and Aider.

Progressive disclosure keeps the main SKILL.md concise while loading supporting resources on demand. Deeper references go in a references directory, and optional assets or scripts load only when needed during execution.

Yes, this universal agent skill framework supports GitHub Copilot and Cursor, along with Claude, Windsurf, and Aider. It standardizes skill creation across these platforms using an open-standard metadata format.

The main limitation is that the SKILL.md file must stay under 500 lines. To manage this constraint, you must use progressive disclosure by moving deeper content into optional directories for references, scripts, and assets.

Update existing agent skills by applying the universal template to validate YAML frontmatter, ensure required fields are present, and restructure content to meet the 500-line SKILL.md limit while moving supporting resources to optional directories.

Yes, YAML frontmatter with required fields is enforced to build cross-platform agent skills. Optional metadata for licensing and compatibility can also be added to ensure proper skill composition across different platforms.