I want to create my own pet for the Codex desktop app.

My context: [what I do and the associations I like].
Character: [an animal, creature, or mascot].
Personality: [for example calm, curious, a little playful].
Appearance: [colours and style, for example a soft 3D toy].

First suggest a design and show the character. I want a clear silhouette
even at a small size, with a few distinctive features.
Once I choose a direction, preserve it across the animation frames.

Prepare the pet in a format supported by my version of the app.
Show motion previews, check the technical requirements, and list any
imperfections you notice. Finally, guide me through installing and selecting it.
Clearly distinguish: finished image, finished package, installation, and activation.