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Skill Creator

by Anthropic

Added to Onei Jul 22, 2026

3 views

1 copies

Repository Docs

markdown

Summary

Create, edit, and optimize Agent Skills — scaffold new skills, refine existing ones, run evals, and tune descriptions for reliable triggering.

Install This Skill

Add this skill to your favorite AI agent in a few steps.

Any AI agent

This skill is plain instructions — it works with any assistant that accepts custom instructions or system prompts.

Copy the skill content with the button below.
Paste it into your agent's instruction file or system prompt (for example AGENTS.md, .cursorrules, or a custom instructions field).
Ask the agent to apply the skill whenever the task matches.

Claude Code & Claude apps

Claude loads skills automatically from its skills directory.

Claude Code

Create a skill folder — personal: ~/.claude/skills/skill-creator/, or per-project: .claude/skills/skill-creator/
Save the skill content as SKILL.md inside that folder.
Claude Code picks it up automatically and invokes it when relevant.

mkdir -p ~/.claude/skills/skill-creator

Claude.ai / Claude Desktop

Enable Skills under Settings → Capabilities, then upload the skill (a folder or zip containing SKILL.md).

One-prompt install

Paste this prompt into any agent with web access and it will install the skill for you.

Install the "Skill Creator" skill from Onei AI. Fetch https://onei.ai/skills/skill-creator, extract the full skill content from the page, and save it where you load skills from (for Claude Code: .claude/skills/skill-creator/SKILL.md). From now on, apply this skill whenever it is relevant to my request.

Skill Content

Markdown Content

Copy this content and use it with your preferred AI agent

# Skill Creator

Use this skill to create a new skill from scratch, or to edit, optimize, and measure an existing one.

## What it does
- Scaffolds the `SKILL.md`, scripts, and resource structure for a new skill
- Improves the wording, scope, and workflow of an existing skill
- Runs evals and benchmarks with variance analysis to measure quality
- Tunes the `description` frontmatter so the skill triggers on the right requests and not on the wrong ones

## Why description quality matters
A skill only helps if it loads at the right moment. This skill treats the trigger `description` as a first-class artifact and iterates on it against test prompts.

Description

A meta-skill for building and improving Agent Skills. It scaffolds a new skill from scratch, edits and optimizes an existing one, runs evaluations to test behavior, benchmarks performance with variance analysis, and optimizes a skill's description so it triggers accurately. Use it whenever you are authoring or tuning a skill.

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