What it is
skill-creator is an official Anthropic skill for creating new skills and improving existing ones. Its SKILL.md focuses on the full iteration loop: draft the skill, write test prompts, run evaluations, review results, then rewrite.
Why it is useful
This is the meta-skill to install before building your own catalog. It helps turn a rough workflow into a measurable skill with better trigger behavior and clearer instructions.
Best uses
- Drafting a new
SKILL.mdfrom a workflow idea. - Improving an existing skill that triggers too often or too rarely.
- Creating evaluation prompts before publishing a skill to a team.
Notes
The useful lesson is not only the content of the skill, but the workflow it teaches: test prompts and evaluation belong in skill development, not only in code development.