Rook Codex Pet

Rook is a chibi coder Codex pet with gray hair, orange headphones, a black hoodie, and bright red cheeks. Installs with Codex as data-only pet.json and spritesheet.webp files.

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Install

Copy this prompt and paste it into Codex. Codex runs the install command on your behalf and confirms each SHA-256 hash before writing.

Activate in Codex

  • Open Settings → Appearance → Pets in Codex.
  • Click Refresh custom pets so Codex picks up the new install directory.
  • Wake the pet with /pet in any chat.

Agent resources

Pet details

Version
v1
Files
pet.json (630 bytes), spritesheet.webp (1580410 bytes)
SHA-256 (pet.json)
8229be7f81bada2678a830b488c59ba28355802aff2db64dc8745ca4a35b53dc
SHA-256 (spritesheet.webp)
a77c7345fd1af57906624d0bae2e336120b4ad357a1530e5ea9a5ede4459dbb7
Atlas geometry
1536×1872, 8×9 cells of 192×208
Animation states
idle, running-right, running-left, waving, jumping, failed, waiting, running, review
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