Custom animated pets for OpenAI Codex (and OpenPets, which bridges Claude Code, Cursor, OpenCode, Gemini CLI and Pi CLI), hatched at https://3ps.online/pets/. One new pet drops here every day.
Every pet is the standard 1536x1872 atlas (8 columns x 9 rows of 192x208 frames) plus pet.json, validated with OpenAI's own open-source validator, with clean alpha (no magenta halo, no RGB residue on transparent pixels).
# macOS / Linux
cp -r pets/lil-mayo ~/.codex/pets/# Windows
Copy-Item -Recurse pets\lil-mayo "$env:USERPROFILE\.codex\pets\"Then in the Codex app: Settings > Appearance > Pets > refresh. Codex CLI: /pets lil-mayo. OpenPets reads the same folder.
https://3ps.online/pets/ is a free browser tool: describe a pet, get a validated pack in about two minutes. Submissions go up in the gallery with your name on them.
| Pet | Preview | Description |
|---|---|---|
| Lil Mayo |  |
A tiny grey alien who floats, judges your code, and loves mayo. |
| Pwny |  |
A tiny e-ink face that pwns your bugs and naps in between. |
| Glitch Cat |  |
A hoodie-wearing hacker cat with a laptop and matrix-green eyes. |