Skill Creator is Anthropic's own Claude Code plugin for building skills interactively. Instead of hand-writing a SKILL.md from a blank file, you run /skill-creator inside Claude Code and work through four modes: Create, Eval, Improve, and Benchmark.

This guide walks through what each mode actually does, when to reach for it, and what to do with the finished skill once it works, including how to list it in the Claude Market directory so other builders can find and install it.

Install

See the Skill Creator plugin listing

Browse the full Skill Creator entry, install command, source, and details, in the Claude Code directory.

Open Skill Creator →

Reference

Read the SKILL.md writing guide

Useful alongside Skill Creator when you want to understand what the generated file should actually contain.

Read the guide →

Publish

List your finished skill on Claude Market

Once your skill passes Eval and Benchmark, submit it to the directory so other builders can find and install it.

Submit your skill →

The four modes

Create starts a new skill from a plain-language description of the job it should do. Eval runs it against real test prompts to see whether it actually works. Improve uses those results to tighten the instructions. Benchmark repeats runs to check consistency, not just a single lucky pass.

What to do once it works

A skill that passes Eval and Benchmark is usually specific enough to be genuinely useful to someone else, not just you. That is the point where it is worth publishing rather than keeping it local: push it to a public GitHub repo or a gist, then submit the link.

Curated Listings

Related pages for skill authoring

Use these alongside Skill Creator depending on which environment and stage you are at.

Codex

Skill Creator (Codex)

The Codex-focused version of Skill Creator, useful when your target environment is terminal-first rather than Claude Code.

Open skill page →

Packaging

Plugin Creator

Useful once your skill grows into something that needs plugin packaging or a broader local bundle around it.

Open skill page →

Discovery

Find Skills

Worth checking before you build: confirms whether your idea should become a new skill or whether a close match already exists.

Open skill page →

Related Hubs

Keep drilling down by ecosystem or use case

These related hubs connect the broad search term to the next page that usually narrows the decision cleanly.

Write a SKILL.md

How to Write a SKILL.md That an Agent Can Actually Use

Learn how to write a SKILL.md for Claude Code or Codex and browse the best skill-authoring pages to model from.

Open hub →

Install Claude Code Skills

How to Install Claude Code Skills Without Turning the Setup Into a Mess

Learn how to install Claude Code skills and choose a sensible first set of discovery, testing, frontend, and MCP-oriented skill pages.

Open hub →

Best Claude Code Skills

Best Claude Code Skills for Real Workflows

Browse the best Claude Code skills to start with for testing, MCP servers, frontend work, documentation, and skill authoring.

Open hub →