AGENTS.md and CLAUDE.md examples, by language and framework
727 of 1,414 actively developed open-source products we track keep instruction files for coding agents. Pick a language or framework for real files to read, what projects like yours put in them, and a starting file.
| Language or framework | Files | Keep one | Typical length |
|---|---|---|---|
 TypeScript | 521 | 58% of 1,018 | 926 words |
 React | 414 | 59% of 796 | 971 words |
 Python | 213 | 49% of 486 | 909 words |
 Next.js | 190 | 61% of 355 | 1,033 words |
 React Router | 139 | 63% of 254 | 986 words |
 FastAPI | 111 | 57% of 225 | 930 words |
 Rust | 109 | 68% of 176 | 1,190 words |
 Express | 108 | 56% of 218 | 1,050 words |
 Electron | 75 | 66% of 118 | 1,007 words |
 Vue.js | 73 | 51% of 163 | 870 words |
 Hono | 73 | 80% of 93 | 1,207 words |
 Go | 54 | 58% of 104 | 991 words |
 Astro | 54 | 63% of 94 | 1,073 words |
 React Native | 34 | 73% of 52 | 1,345 words |
 Svelte | 32 | 61% of 67 | 1,423 words |
 Tauri | 32 | 78% of 46 | 1,220 words |
 Fastify | 31 | 61% of 54 | 796 words |
What open-source products tell their coding agents, by the numbers →