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This is f*cking insane. Y Combinator CEO Garry Tan: "When someone asks how I prompt my AI, the answer is: I don't. The skills are the prompts" In 2 minutes, he shows the setup that turns Claude Code into a full AI engineering team, built on one idea: thin harness, fat skills Prompts → Skills → A Team Of Specialists → A Startup Built By Agents One of his skills runs YC office hours: tens of thousands of hours from 16 YC partners, distilled into a file Claude follows Do a workflow once, turn it into a skill, and it runs that way forever Save this before it disappears from your feed Everything below is free: GStack (his 23 Claude Code skills: CEO, designer, eng manager, QA) https://t.co/kjgU5TbyA3 GBrain (his open-source second brain) https://t.co/fbWwggIt0K How to make Claude Code your AI engineering team (YC) https://t.co/SuSP0iuKhi Don't Build Agents, Build Skills Instead (Anthropic) https://t.co/nKR9I6Mit6 How Perplexity designs and maintains agent skills https://t.co/oi9UPxMgaU Anthropic's official skills repo https://t.co/zs2rvTLD4A Agent Skills docs https://t.co/X0QwTo0IcJ How Anthropic equips agents with skills https://t.co/LF4uEtb7mf Agent Skills open standard https://t.co/btMTuTKbHe Free Agent Skills course with Anthropic https://t.co/nkYUV79Lqd All of this costs $0 Prompting is dead, skills are next, and 99% are still typing prompts from scratch every morning Bookmark it and start with the first link tonight Then read how thin harness, fat skills works in the harness engineering guide below ↓