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openai codex · hatch-pet

Codex pet prompt kit▌

Copy-ready commands and prompts for OpenAI's hatch-pet skill path. Open the blocks in your Codex desktop app after installing the skill; then refine art in the structured brief. For discovery and commentary, see /codex-pets and our deep guide.

1. Install hatch-pet (composer)

$skill-installer hatch-pet

After installing: Command menu (Cmd+K / Ctrl+K) → Force Reload Skills → then run hatch-pet in the composer.

2. First generation prompt

$hatch-pet create a new pet inspired by my recent projects

Constraints:
- Small readable silhouette (~64–128px feel), high contrast on dark UI
- Personality line for hover/subtitle (one sentence)
- Four emotional beats: idle, thinking, success, needs-attention
- No licensed characters; original design only

3. Structured art brief

Codex pet design brief (paste under hatch-pet)

1) Name & one-line vibe:
2) Color anchors (hex): primary / accent / alert
3) Visual style: (pixel / flat / skeuomorphic / mascot / abstract)
4) Animation rules: loop length, squash-and-stretch yes/no, particles yes/no
5) States to sprite: idle, running task, waiting on user, error/blocked, success
6) Forbidden: text in glyph, ultra-thin strokes, low-opacity on busy BG
7) Export: transparent PNG sequence or atlas per hatch-pet skill output

4. AI-Powered Prompt Generator

Describe your ideal Codex pet (personality, appearance, animations, themes) and our AI will generate an optimized $hatch-pet prompt.

0 characters

Quick examples:

💡 Tips: Be specific about personality (playful, professional, minimal), mention color preferences, describe desired animations, reference your project types, specify when the pet should react.

Primary sources

FAQ

Does this page call OpenAI for me?
No. This route only hosts copy-paste text. Your Codex app (with hatch-pet installed) runs the actual generation and packaging. Treat outputs as drafts and validate assets before sharing.
Where is the authoritative hatch-pet documentation?
Browse the skill on ExplainX at /skills/OpenAI/Skills/hatch-pet (install + metadata) and read SKILL.md in the openai/skills GitHub repo for atlas layout, pet.json fields, and validation—this page is a quick-start complement, not a substitute.
What if $skill-installer fails?
Confirm you are on a Codex build that supports the skills installer, check MCP/skills configuration in config.toml, update the app, and review developers.openai.com Codex troubleshooting. Slash commands evolve; re-check in-app help after updates.