The open operating system for first-time founders. Proof before hype. 22 AI skills across the founder journey — Claude Code, Codex, Cursor, or any chatbot.
Latest release v0.2.0 · 22 Jun 2026
3 files for Codex, OpenCode, Claude Code and Gemini CLI: FounderOS AGENTS.md, FounderOS CLAUDE.md, FounderOS GEMINI.md — 2,085 tokens loaded in every session.
AGENTS.md A 506 tok CLAUDE.md A 1,049 tok GEMINI.md A 530 tok These files are impactbrussels/FounderOS's own configuration — they tell Codex, OpenCode, Claude Code and Gemini CLI how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.