Description
hatch-pet is an agent skill in the OpenDesign project that creates, repairs, validates, previews and packages Codex-compatible animated pet spritesheets. It can start from a concept, from one or more reference images, or from both, and it accepts character art, screenshots, generated images and other visual references. It handles the pet-specific work: prompt planning, animation rows, frame extraction, atlas geometry, quality checks, previews and packaging. Visual generation is delegated to a separate imagegen skill. Its inputs are optional. If the user does not name the pet, the skill infers a name from the concept or the reference filenames, and if it cannot, it picks a short, suitable name. If no reference images are given, it first generates a base pet from text and uses that base as the reference for every animation row. The packaged spritesheet.webp file goes into the pets folder under the Codex home directory, and it can be imported into OpenDesign's floating pet companion through the settings. The import detects an 8 by 9 grid with a 192 by 208 pixel atlas, and lets the user choose which animation row to play, such as idle, running right or waving.…
Highlights
- Creates and packages animated pet spritesheets
- Starts from a concept, references or both
- Checks atlas geometry and quality
- Imports into the OpenDesign pet companion
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hatch-pet FAQ
What does the hatch-pet skill do?
It creates, repairs, validates, previews and packages animated pet spritesheets that are compatible with Codex.
How do I install it?
Run: npx skills add https://github.com/nexu-io/open-design --skill hatch-pet
Do I need reference images?
No. If none are given, the skill generates a base pet from text and uses it as the reference for each animation row.
Where does the finished spritesheet go?
A spritesheet.webp file in the pets folder under the Codex home directory, which can then be imported into OpenDesign's pet companion.
What security checks has it passed?
skills.sh lists three audits: Gen Agent Trust Hub Pass, Socket Warn and Snyk Pass. A Warn or Fail is worth reading before you install.
What are the best hatch-pet alternatives?
Popular alternatives to hatch-pet include implement, brand-guidelines and canvas-design. See all hatch-pet alternatives