# Codex Pet (agent skill)

> Codex Pet is an agent skill (a SKILL.md file) from prime-skills/runcomfy-agent-skills. Codex Pet generator on RunComfy. Build a Codex-compatible Codex Pet spritesheet.webp + pet.json from a single reference image, drop it into ${CODEXHOME:-$HOME/.codex}/pets// and Codex picks it up as. It works with Claude Code and has 54 GitHub stars across a repository of 6 listed skills.

Codex Pet generator on RunComfy. Build a Codex-compatible Codex Pet spritesheet.webp + pet.json from a single reference image, drop it into ${CODEXHOME:-$HOME/.codex}/pets// and Codex picks it up as a custom Codex Pet next to the 8 built-ins. This skill produces the exact Codex Pet atlas Codex expects (1536x1872 PNG/WebP, 8 cols x 9 rows, 192x208 cells, 9 animation states — idle, running-right, running-left, waving, jumping, failed, waiting, running, review).

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/prime-skills/runcomfy-agent-skills |
| Skill path | codex-pet/SKILL.md |
| Skill name | codex-pet |
| GitHub stars | 54 |
| Installs on skills.sh | 392,341 |
| License | MIT |
| Skills in repo | 6 |
| Plugin marketplace | no |
| Official | no |
| Works with | Claude Code |
| Category | Design & frontend |
| Last commit | May 15, 2026 |

## When it triggers

- Triggers on "codex pet", "create codex pet", "make codex pet", "hatch codex pet", "/hatch image", "desktop pet codex", "codex pets", "spritesheet.
- "codex pet"
- "create codex pet"
- "make codex pet"
- "hatch codex pet"
- "/hatch image"
- "desktop pet codex"
- "codex pets"

## Add this skill

### Claude Code

```sh
git clone --depth 1 https://github.com/prime-skills/runcomfy-agent-skills.git
cp -r runcomfy-agent-skills/codex-pet ~/.claude/skills/codex-pet   # personal, or .claude/skills in a project
```

In the Claude apps, zip the skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
git clone --depth 1 https://github.com/prime-skills/runcomfy-agent-skills.git
cp -r runcomfy-agent-skills/codex-pet .agents/skills/codex-pet   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/prime-skills/runcomfy-agent-skills.git
cp -r runcomfy-agent-skills/codex-pet .cursor/skills/codex-pet   # project; ~/.cursor/skills for all projects
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

skills.sh listing: https://www.skills.sh/prime-skills/runcomfy-agent-skills/codex-pet

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Canonical page: https://appsgit.com/skills/prime-skills-codex-pet
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