Prepare a reference
Use a front-facing character with a clear silhouette and a simple background.
HATCH PET / CODEX SKILL
TURN A CHARACTER IMAGE INTO A MOVING CODEX PET.
Hatch Pet Skill guides Codex through character analysis, motion creation, checks, and packaging. You provide a reference image and a clear character brief.
01ONE CLEAR REFERENCE＋ONE SPECIFIC PERSONALITY＝YOUR OWN DESK COMPANION
FROM IDEA TO PET
THREE THINGS FROM YOU
A clear silhouette and specific motion notes directly improve the final result.
Describe the personality
Describe the motion rhythm, posture, and most important identifying features.
Review the result
Check the motion, transparent edges, and silhouette before installing the final ZIP.
INSTALL THE SKILL
FIRST, ADD HATCHING TO CODEX
Download the Skill ZIP, choose your system, and copy the command. Restart Codex, then provide your reference and prompt.
Use $hatch-pet to turn this character reference into a Codex pet named Cloudy. Its tail sways while idle and it trots right while working, in a soft vinyl sticker style.
$codexRoot = if ($env:CODEX_HOME) { $env:CODEX_HOME } else { Join-Path $env:USERPROFILE ".codex" }
$skillsRoot = Join-Path $codexRoot "skills"
$target = Join-Path $skillsRoot "hatch-pet"
$archive = Join-Path $env:USERPROFILE "Downloads\hatch-pet.zip"
if (Test-Path -LiteralPath $target) { throw "hatch-pet already exists. Stop and review it before replacing anything." }
New-Item -ItemType Directory -Force -Path $skillsRoot | Out-Null
Expand-Archive -LiteralPath $archive -DestinationPath $skillsRootBefore running, confirm the ZIP is in your Downloads folder. Fully quit and reopen Codex Desktop after installation.