Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add xnydl/codex-dream-skin --skill macosgit clone --depth 1 https://github.com/xnydl/codex-dream-skinWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/xnydl/codex-dream-skin/macos)<a href="https://agentmods.dev/skills/xnydl/codex-dream-skin/macos"><img src="https://agentmods.dev/badge/skills/xnydl/codex-dream-skin/macos/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/xnydl/codex-dream-skin/macos"><img src="https://agentmods.dev/badge/skills/xnydl/codex-dream-skin/macos.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00070 | $0.00544 |
| Opus 5.5 | $0.00028 | $0.00218 |
| Sonnet 5.5 | $0.00014 | $0.00109 |
| Haiku 4.5 | $0.00007 | $0.00054 |
Grade A, and why
codex-dream-skin-studio scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 37 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Codex Dream Skin Studio
This file is an optional Codex capability entry. The delivery is a complete standalone project; users do not need to install it as a Skill.
Workflow
- Run
Install Codex Dream Skin.commandfrom the complete project folder. - Run
Customize Codex Dream Skin.command, choose an image in Finder, and enter a theme name. - Verify the live result with
Verify Codex Dream Skin.command. A pass requires a visible native sidebar and composer, no horizontal overflow, non-interactive decoration, and—on the home route—a continuous wallpaper with live native heading, project controls, and any suggestion cards exposed by the current Codex version. - Restore the official appearance with
Restore Codex Dream Skin.command.
Guardrails
- Never modify the official
.app,app.asar, or its code signature. - Use the official Codex app's signed Node.js runtime only after validating its signature, Team ID, architecture, and minimum version.
- Bind CDP to loopback, verify that the listener belongs to Codex, and reject non-Codex renderer targets.
- Preserve all native cards, navigation, project selectors, task content, composer controls, and keyboard focus.
- Theme images must be UI-free wallpapers. Paint one 16:9 image continuously across the window; keep home expressive and task routes quieter.
appearance: autofollows Codex/native or system appearance rather than image brightness. - Keep decoration at
pointer-events: none. - Require explicit authorization before restarting an already-running Codex instance.
- Stop an injector only when its recorded PID, executable, command line, and start time all match.
Key resources
README.md: user installation and customization guide.scripts/injector.mjs: CDP connection, injection, removal, verification, and screenshots.assets/dream-skin.css: live native interface styling.assets/renderer-inject.js: idempotent DOM integration and cleanup.scripts/doctor-macos.sh: signed-runtime, payload, and optional live-session self-check.references/qa-inventory.md: release and visual acceptance criteria.
What ships with it
60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- .gitignore 114 B
- agents/openai.yaml 282 B
- assets/dream-skin.css 39 KB
- assets/portal-hero.png 1626 KB
- assets/renderer-inject.js 33 KB runs code
- assets/theme.json 794 B
- CHANGELOG.md 8.6 KB
- CLIENT_DEPLOY_PROMPT.md 4.7 KB
- Customize Codex Dream Skin.command 299 B
- Install Codex Dream Skin.command 120 B
- Install Menu Bar.command 83 B
- LICENSE 1.1 KB
- menubar/codex_dream_skin.10s.sh 4.7 KB runs code
- NOTICE.md 2.0 KB
- package.json 238 B
- presets/generate-presets.mjs 10 KB runs code
- presets/generate-ssyai-preset.mjs 4.5 KB runs code
- presets/preset-amber-dusk/background.jpg 117 KB
- presets/preset-amber-dusk/theme.json 798 B
- presets/preset-cyber-neon/background.jpg 127 KB
- presets/preset-cyber-neon/theme.json 798 B
- presets/preset-forest-mist/background.jpg 115 KB
- presets/preset-forest-mist/theme.json 794 B
- presets/preset-midnight-aurora/background.jpg 119 KB
- presets/preset-midnight-aurora/theme.json 800 B
- presets/preset-sakura-dawn/background.jpg 104 KB
- presets/preset-sakura-dawn/theme.json 799 B
- presets/preset-ssyai-dream/background.jpg 179 KB
- presets/preset-ssyai-dream/theme.json 932 B
- presets/README.md 4.6 KB
- README.md 7.5 KB
- references/acceptance-report-2026-07-15.md 1.5 KB
- references/asset-provenance.md 927 B
- references/incident-review.md 1.2 KB
- references/qa-inventory.md 3.0 KB
- references/runtime-notes.md 1.7 KB
- Restore Codex Dream Skin.command 329 B
- scripts/apply-from-menubar-macos.sh 2.6 KB runs code
- scripts/common-macos.sh 23 KB runs code
- scripts/customize-theme-macos.sh 3.1 KB runs code
- scripts/doctor-macos.sh 1.8 KB runs code
- scripts/image-metadata.mjs 4.6 KB runs code
- scripts/injector.mjs 33 KB runs code
- scripts/install-dream-skin-macos.sh 4.2 KB runs code
- scripts/install-menubar-macos.sh 3.5 KB runs code
- scripts/load-image-theme-macos.sh 4.8 KB runs code
- scripts/pause-dream-skin-macos.sh 2.3 KB runs code
- scripts/restore-dream-skin-macos.sh 2.4 KB runs code
- scripts/stage-theme.mjs 4.4 KB runs code
- scripts/start-dream-skin-macos.sh 5.5 KB runs code
- scripts/status-dream-skin-macos.sh 5.2 KB runs code
- scripts/switch-theme-macos.sh 3.5 KB runs code
- scripts/theme-config.mjs 11 KB runs code
- scripts/verify-dream-skin-macos.sh 844 B runs code
- scripts/write-theme.mjs 6.3 KB runs code
- Start Codex Dream Skin.command 317 B
- tests/image-metadata.test.mjs 3.0 KB runs code
- tests/injector-bootstrap.test.mjs 3.1 KB runs code
- tests/renderer-inject.test.mjs 20 KB runs code
- tests/run-tests.sh 32 KB runs code
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 37 lines · 70 tokens per session scan A f6c84211d70e
codex-dream-skin-studio is a skill published in the GitHub repository xnydl/codex-dream-skin (54 stars, last pushed 3mo ago), licensed MIT. It adds 70 tokens to every session and 544 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
codex-dream-skin-studio compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| codex-dream-skin-studioxnydl/codex-dream-skin | Skill | 54 | 3mo ago | MIT | A | 70 | Codex |
| logo-companyqwwiwi/codex-gpt-image-2-subscription | Skill | 9 | yesterday | MIT | A | 301 | Claude Code, Codex |
| html-artifactslangchain-ai/open-swe | Skill | 11k | yesterday | MIT | A | 52 | Claude Code, Codex |
| openclaw-carapaceopenclaw/clawhub | Skill | 9.5k | yesterday | MIT | A | 50 | Claude Code, Codex |
| openclaw-design-systemopenclaw/clawhub | Skill | 9.5k | yesterday | MIT | A | 37 | Claude Code, Codex |
| openclaw-design-auditopenclaw/clawhub | Skill | 9.5k | yesterday | MIT | A | 56 | Claude Code, Codex |
| openclaw-designopenclaw/clawhub | Skill | 9.5k | yesterday | MIT | A | 58 | Claude Code, Codex |