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Codex Pet generator on RunComfy. Build a Codex-compatible Codex Pet spritesheet.webp + pet.json from a single reference image, drop it into…
Codex Pet — Pro Pack on RunComfy
runcomfy.com · GPT Image 2 edit endpoint · docs
Codex Pet generator on RunComfy. Turn one source image into a Codex-compatible custom Codex Pet — pet.json + spritesheet.webp — drop it into ${CODEX_HOME:-$HOME/.codex}/pets/<name>/, Codex picks it up next to the 8 built-in Codex Pets.
npx skills add agentspace-so/runcomfy-agent-skills --skill codex-pet -g
What a Codex Pet is
OpenAI Codex Pets (released May 2026) are pixel-art animated companions that float over your desktop while Codex codes — they react to mouse interaction and Codex status (scratching head when thinking, popping a speech bubble when a task completes). Codex ships with 8 built-in Codex Pets and supports custom Codex Pets installed locally as a folder under ${CODEX_HOME:-$HOME/.codex}/pets/.
Each custom Codex Pet folder contains exactly two files:
pet.json — manifest with id, displayName, description, spritesheetPath.
spritesheet.webp — Codex Pet sprite atlas, 1536x1872 PNG or WebP, 8 columns x 9 rows of 192x208 cells, transparent background.don't have the plugin yet? install it then click "run inline in claude" again.