A starter template for any project with Claude Code: clone it, write one sentence, and get a configured environment with a project second brain, working rules, and a library of 16 ready-made prompts in 90–120 minutes
2 files for Claude Code, Codex and OpenCode: claude-code-starter CLAUDE.md, claude-code-starter AGENTS.md — 194 tokens loaded in every session.
CLAUDE.md A 97 tok AGENTS.md A 97 tok These files are artemiimillier/claude-code-starter's own configuration — they tell Claude Code, Codex and OpenCode 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.