SKILL.md
Create a Codex theme
Create a reversible decorative theme without modifying app.asar, the signed app bundle, WindowsApps, user tasks, or authentication data. Preserve native layout and interaction behavior unless the chosen layout mode explicitly permits a bounded composition change.
Authority boundary
Use this skill as the sole design and QA authority for a new Codex theme. Do not read, copy, or combine another installed theme skill, finished theme manifest, finished theme CSS, or local theme collection unless the user explicitly names that source. Do not describe the workflow as combining this skill with “local theme conventions.” Start from this skill's matching skeleton and the user's brief or reference image.
This skill is standalone. Its TypeScript scripts own scaffolding, validation, reversible session application, and restore. Never detect, invoke, read configuration from, or claim a dependency on CodeDrobe, Dream/Fiona, or another theme injector unless the user explicitly asks to use that product. Do not reuse their marker names or runtime data. The only required local tools are Node.js, npx, and the official Codex desktop app.
Managed storage
Keep every generated theme file in the managed library ~/.codexthemes unless the user explicitly requests another location:
- editable source and artwork:
~/.codexthemes/themes/<theme-id>/ - previews:
~/.codexthemes/themes/<theme-id>/previews/ - shareable packages:
~/.codexthemes/exports/ - runtime state:
~/.codexthemes/state/