Make your own

Hatch a pet in Codex

Codex ships a built-in skill called Hatch Pet that generates a fully animated companion (9 states, 1536×1872) from a short description. Five minutes from idea to a sprite that lives in your editor.

  1. 1Get the Hatch Pet skill

    Open Codex → Skills in the top navbar → find Hatch Pet → install.

  2. 2Hatch your pet

    In Codex chat, type /pet. Describe the pet you want (an idea, a vibe, a thing on your desk). The skill generates the spritesheet and animations automatically.

    Tip: specifics travel further. "A tiny sock-elf with green eyes" beats "a creature".

  3. 3Activate it

    Restart Codex, then go to Settings → Appearance → Pets and click Select on your new pet under Custom pets.

    Use /pet afterwards to wake or tuck it away.

  4. 4Share it on Petdex

    The pet lives at ~/.codex/pets/<name>. Drag that folder (or its zip) to /submit and Petdex hosts it for everyone to install with one curl.

What makes a great pet

  • Specific over generic. "A bubble-tea otter" beats "an otter".
  • Twist a job, role, or object. Paperclip assistant, sock elf, microwave companion — the unexpected sticks.
  • One vibe. Cozy, focused, mischievous, heroic. Don't try to be all of them.
  • Skip clear IP. Fan-art is welcome but expect takedowns. Original concepts age better.

Already have a pet?

Drop the folder or zip and we'll publish it.

Submit your pet