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Skill / OpenAI

Hatch Pet Codex Skill

Create, repair, validate, visually QA, and package Codex-compatible animated pets and pet spritesheets from character art, generated images, company...

Docs reviewedChecked 2026-09-20Runtime not tested

What it adds

Create, repair, validate, visually QA, and package Codex-compatible animated pets and pet spritesheets from character art, generated images, company or prospect brand cues, or visual references. Use when a user wants a lightweight-worker Codex pet workflow, a non-pixel custom pet style, a prospect or company mascot pet, or a full 8x9 animated pet atlas with transparent unused cells, QA contact sheets, and pet.json packaging. This skill composes the installed $imagegen system skill for visual generation and uses bundled scripts for deterministic spritesheet assembly.

cloud and deployment

Get set up

  1. Generate and copy base first, using a lightweight base worker.
  2. Generate and copy idle and running-right next as the identity and gait check, using one lightweight worker per row.
  3. Inspect running-right; mirror running-left only when visual identity, prop placement, markings, lighting, and direction semantics remain correct.
  4. Generate running-left normally with a lightweight worker when mirroring would change meaning or identity.
  5. Generate the remaining rows with lightweight workers, using every input image listed for each job.
$skill-installer hatch-pet
Review before running
Read the installation source

Before you install

    Compatibility & limitations

    Documented for ChatGPT desktop app, Codex CLI, Codex IDE extension

    Cursor: Not confirmed for Cursor.

      This listing is based on source documentation. We have not installed or runtime-tested this asset.

      How it fits together

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      Sources & provenance

      Reviewed 2026-09-20. Source revision: main (mutable; commit not pinned).