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Codex Dream Skin guide

Codex Dream Skin safety model

Understand the safety boundary before installing a third-party Codex appearance tool.

Short answer

Dream Skin connects only to Codex on your own computer. Other devices cannot use that connection, but other programs running under your account may be able to reach it while the theme is active, so use trusted local software and restore when finished.

01

Separate data from executable code

A theme pack is data: theme.json plus an image. Install, start, tray, styling, and restore scripts are executable code. Get those scripts from the named Codex Dream Skin GitHub project and avoid opaque repackaging.

Expected:You can identify which downloaded files are passive assets and which files execute locally.
If this fails:Stop if a theme pack contains unexpected scripts, binaries, login prompts, or commands unrelated to appearance.
02

Keep the official app intact

Codex Dream Skin checks the official app and applies styles while it runs. It does not need to replace the application bundle, WindowsApps files, app.asar, or the code signature.

Expected:The official installation remains untouched and can be launched normally after restore.
If this fails:Reject instructions that request WindowsApps ownership, bundle patching, signature removal, or redistribution of a modified Codex app.
03

Keep appearance separate from accounts

Theme installation must not alter API keys, auth.json, model providers, Base URLs, proxies, account data, or private conversations.

Expected:The only intentional changes are Dream Skin's local files, appearance backup, and active theme.
If this fails:Stop immediately if a theme workflow requests credentials or provider changes. Do not attach secrets or private conversation data to an issue.
04

Close Dream Skin when finished

Codex Dream Skin limits its connection to this computer and checks that it belongs to Codex. Even so, run only trusted local software while using the theme and restore when finished.

Expected:Dream Skin and its local connection close during restore.
If this fails:Do not continue if the connection is exposed to other devices or belongs to an unidentified process.
05

Treat artwork rights as a separate check

Software licensing does not grant rights to every bundled or user-provided image. Use artwork you created, licensed, or have permission to redistribute; preserve author and license notices.

Expected:Every redistributed theme has traceable artwork provenance and a compatible license or permission statement.
If this fails:Do not publish a theme merely because its image is publicly accessible or appears in a screenshot.

Project references

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Codex Dream Skin safety model