Codex Pets

Codex Pets for AI Coding Workflows

Browse community Codex Pets, copy install commands, open source links, and learn how to create or share custom pet packages for OpenAI Codex CLI workflows.

PET·GYOMEI listed
Gyomei-demonslayer preview
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Gyomei-demonslayer

By side_inventory

A compact animated Gyomei Himejima inspired Demon Slayer pet with prayer beads, green haori, chained axe-and-flail, and Stone Breathing skill effects.

26000Updated Oct 3, 2026
PET·LOSTTH listed
Lost Three-Sword Coder preview
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A moss-haired swordsman who is absolutely sure the upside-down map is correct.

30000Updated Oct 9, 2026
PET·MITSUR listed
Mitsuri Demon Slayer preview
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Mitsuri Demon Slayer

By side_inventory

Mitsuri-inspired love-breathing swordswoman pet with wide pink skill arcs and sparse heart-shaped accents while Codex runs.

28000Updated Oct 10, 2026
PET·NEZUKO listed
Nezuko-swordvillage preview
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Nezuko-swordvillage

By side_inventory

A tiny chibi Nezuko in her Swordsmith Village pink kimono, happily animated with her brother Tanjiro braiding her hair.

22000Updated Oct 10, 2026
PET·FRIDAY listed
Friday v1 preview
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Friday v1

By Annu05

Version one of Friday, a chibi purple-haired pet in a pink suit built from the provided sprite assets.

36000Updated Oct 11, 2026
PET·AEMEAT listed
Aemeath爱弥斯 preview
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A custom Codex pet generated from an uploaded photo.

39000Updated Oct 9, 2026
PET·BAIXYN listed
Baixyn Assistant preview
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A compact chibi AI assistant mascot based on the uploaded BAIXYN-style reference image.

29000Updated Oct 10, 2026
PET·SANEMI listed
Sanemi-demonslayer preview
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Sanemi-demonslayer

By side_inventory

A compact Sanemi-inspired Demon Slayer wind swordsman pet with scarred face, spiky white hair, open haori, sword, and large green wind-breathing skill effects while Codex is loading.

20000Updated Oct 5, 2026
PET·MUSCLE listed
Musclemouse-demonslayer preview
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Musclemouse-demonslayer

By side_inventory

A single buff demon-slayer-style muscle mouse who flexes proudly and bounces its chest muscles.

21000Updated Oct 7, 2026
PET·BEHELI listed
Behelit_v3 preview
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Behelit_v3

By bra611374

Crimson Behelit egg pet with quiet misplaced sculpted features, idle face-emergence, and dramatic big-eye toothy reactions.

32000Updated Oct 11, 2026
PET·CHAPPY listed
Chappy preview
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Chappy

By arata

A fan-made chibi Codex mascot with silver-black hair, violet eyes, a white tech coat, purple code accents, and expressive developer-themed props.

32000Updated Oct 3, 2026
PET·NYXIEE listed
Nyxie preview
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Nyxie

By Epic

Compact chibi anime sticker pet with black-violet hair fading to hot pink, glowing magenta eyes, black pastel-goth cyberpunk outfit with neon pink accents, headset or choker, and a playful smug dangerous-cute gremlin vibe.

30000Updated Oct 7, 2026

Codex Pets resources for AI agent workflows

Explore the connections between the Codex Pets hub, specialized Claude Skills, and open-source developer tools.

What Are Codex Pets?

Codex Pets are virtual companions that live in your OpenAI Codex CLI terminal. Use /pet hatch to hatch a new pet, install a custom pet package, or share your own pet.json and spritesheet.webp package from a public GitHub repository. This hub brings together GitHub, custom pets, sharing, and install examples so AI coding teams can find community pets, inspect source links, copy install commands, and submit new packages from one AIMCP page.

Frequently Asked Questions

How do I install a custom Codex pet?
Copy the install command from any pet listing on this page, then run it inside your OpenAI Codex CLI session. The pet will replace your current companion.
How do I hatch a Codex pet?
Inside the Codex CLI, type /pet hatch to hatch a new pet from your available packages.
How do I create a custom Codex pet?
A Codex pet requires two files: pet.json (metadata and animation config) and spritesheet.webp (sprite frames). Host both in a public GitHub repo and submit it here for review.
Where can I find GitHub, custom pets, sharing, and install examples?
Use the Codex Pets hub to browse community packages, open GitHub source links, copy install commands, compare examples, and submit a custom pet package for review.
What do Codex pets do?
Codex pets are animated companions visible in the Codex CLI sidebar. They grow, animate, and react as you code.