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.ai 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.