# Startup Skills: Peter Steinberger > Every skill by Peter Steinberger 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 (4) - [Native app performance](https://github.com/steipete/agent-scripts/tree/main/skills/native-app-performance) by Peter Steinberger: Use when profiling a native app with xctrace and Time Profiler to find hotspots. - [Oracle](https://github.com/steipete/agent-scripts/tree/main/skills/oracle) by Peter Steinberger: Use when bundled prompts and files need a second model's review. - [Project structure](https://github.com/steipete/agent-scripts/tree/main/skills/project-structure) by Peter Steinberger: Use when an agent needs one symbol map of a TypeScript or Swift repo. - [Skill cleaner](https://github.com/steipete/agent-scripts/tree/main/skills/skill-cleaner) by Peter Steinberger: Use when Codex or OpenClaw skills need auditing for budget, usage and duplicates. ## Links - [Page](https://startupskills.dev/steipete): 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.