Release-notes Skill draft and three evaluation cases explicitly marked as pending execution.
Project screenshotsAbout this Skill
Create and improve reusable skills with test cases, comparative evaluations and trigger-description refinement. An agent environment and representative tasks; comparative evaluation uses additional agent runs.
Why we picked it
Useful for a workflow you want an agent to repeat reliably. It connects a Skill draft to test prompts, comparative runs and human review, then revises the instructions and triggering description.
What it helps with
- Create a reusable workflow skill.
- Improve an existing skill with feedback.
- Evaluate triggering and output quality.
How this skill works
1. Capture the task, triggers and output contract
Define the desired behavior, triggering situations and output format before drafting SKILL.md.
2. Write concise instructions and targeted test cases
Prepare realistic test prompts and compare runs with and without the skill.
3. Compare skill runs against a baseline and refine triggering
Review outputs and metrics, revise the skill, and expand the test set when needed.
An example task
Try this brief: “Draft a reusable skill that turns project notes into concise release notes, with test cases.”
The preview is an original SkillHey illustration of this task. Its content is fictional and is not an official Anthropic screenshot or an agent benchmark.
Second example
Try this brief: “Design trigger tests for a skill that summarizes meeting notes, including a similar request that should not trigger.”
Install this skill or its official plugin
For this skill alone, copy its complete directory into the project Skills root using the command above. The final entry is .claude/skills/skill-creator/SKILL.md. Keep references, scripts and assets with it.
| Command | What it helps with |
|---|---|
/plugin marketplace add anthropics/skills | Register the official Claude Code marketplace. |
/plugin install example-skills@anthropic-agent-skills | Install the official plugin. This may include other skills; see its manifest. |
Official repository and plugin manifestClaude Code skill installation documentation
Dependencies and license
An agent environment and representative tasks; comparative evaluation uses additional agent runs.
The recipe is free to access; running an agent or external service may have its own costs.
Review this skill’s LICENSE.txt before redistributing its files.
Official skill-creator instructionsOfficial repository and plugin manifest
Before you use it
- An agent environment and representative tasks; comparative evaluation uses additional agent runs.
Supported agents
Frequently asked questions
Is this a separate skill?
Yes. skill-creator has its own SKILL.md and directory. It also belongs to the Anthropic Official Skills topic.
Official sources
Based on official documentation, with practical scenarios suggested by SkillHey.
