# Startup Skills: Simon Willison > Every skill by Simon Willison in the index, with a line saying when to use each one. I index these, I do not host them. Every entry points at the original author's repo and carries a source byline. ## Entries (2) - [cogapp Markdown](https://github.com/simonw/skills/blob/main/cogapp-markdown/SKILL.md) by Simon Willison: Use when README sections such as CLI help output should be generated from code. - [uv TDD](https://github.com/simonw/skills/blob/main/uv-tdd/SKILL.md) by Simon Willison: Use when starting a Python project with uv and building it test first. ## Links - [Page](https://startupskills.dev/simonw): the same list, for a person. - [The whole index](https://startupskills.dev/llms.txt): all 189 entries. - [Skills index](https://startupskills.dev/skills): every skill, with search.