Simon Willison Code Skills — Development skill for Claude Code
Skills from Claude's code interpreter environment.
How to install Simon Willison Code Skills
This entry records only its repository, not the path inside it, so there is no
exact command to give. Open simonw/claude-skills and copy the folder into
~/.claude/skills/, or the file into ~/.claude/agents/.
What Simon Willison Code Skills does
See [my blog post](https://simonwillison.net/2025/Oct/10/claude-skills/) for background on this project.
Alternatives in Development
- Agent.System.Main.Environment — Environment 19k ★
- Doctor — Environment diagnostics with interactive fixes — providers, auth, RTK, hooks, token optimization 2.8k ★
- 05 Env And Auth — Prompt 05: Environment Configuration & API Authentication 2.3k ★
README
claude-skills
See [my blog post](https://simonwillison.net/2025/Oct/10/claude-skills/) for background on this project.
Anthropic now have an official repository for Claude skills here:
https://github.com/anthropics/skills
The files that were previously archived in this repository can be found here:
https://github.com/anthropics/skills/tree/83291af582d21f5418854fa628a76686203c2f7a/document-skills
Creating a skills archive with a prompt
Created by prompting [Claude.ai](https://claude.ai):
`Create a zip file of everything in your /mnt/skills folder`
[Run that prompt on Claude.ai](https://claude.ai/new?q=Create%20a%20zip%20file%20of%20everything%20in%20your%20%2Fmnt%2Fskills%20folder)
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