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 JonathandNidhog/dsh-plugin-wallpaper-engine-codex --skill wallpaper-enginegit clone --depth 1 https://github.com/JonathandNidhog/dsh-plugin-wallpaper-engine-codexWrote 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/jonathandnidhog/dsh-plugin-wallpaper-engine-codex/wallpaper-engine)<a href="https://agentmods.dev/skills/jonathandnidhog/dsh-plugin-wallpaper-engine-codex/wallpaper-engine"><img src="https://agentmods.dev/badge/skills/jonathandnidhog/dsh-plugin-wallpaper-engine-codex/wallpaper-engine.svg" alt="Measured on agentmods" 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 | $0.00062 | $0.00767 |
| Opus 5 | $0.00031 | $0.00383 |
| Sonnet 5 | $0.00012 | $0.00153 |
| Haiku 4.5 | $0.00006 | $0.00077 |
Grade A, and why
wallpaper-engine 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 6d 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 — 40 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Wallpaper Engine Skin for Codex
Use the plugin's codex_skin MCP tools. This plugin changes the Codex window, never the Windows desktop wallpaper.
Workflow
- Call
codex_skin_statusfirst. - If
bridge.debug.availableis false, callcodex_skin_launch_instructions. Explain that the user must close Codex and relaunch it with the bundled script, then continue in a new task. - Call
codex_skin_list_sourcesbefore applying a skin. Resolve the request to an exact returnedid; ask the user only if multiple plausible matches remain. - Call
codex_skin_applywith that exact id. Keep video muted unless the user explicitly asks for sound. - Call
codex_skin_removewhen the user wants the normal Codex appearance restored. - Use
codex_skin_generate_native_themewhen the user wants a supported color/font theme or cannot use the dynamic bridge.
Rendering expectations
- Small video files render inline. Videos over the compression threshold are automatically transcoded into a full-duration, hardware-friendly cached MP4 before Blob playback. Files still over the Blob limit use a decoded animation sequence, with the project preview as the final fallback.
- Web, Scene, and Application projects use their preview image because their local files cannot be loaded safely from Codex's
app://renderer. - The dynamic skin is experimental because Codex does not expose a public background-image plugin API. The launcher enables a loopback-only Chrome DevTools endpoint and does not modify installed Codex files.
- The selected skin and adjustment settings persist under LocalAppData. When Codex is launched with the bundled loopback debug launcher, the MCP bridge automatically restores the last enabled skin; ending a task must not remove it.
- A normal Codex launch without the debug flag cannot accept a dynamic skin. If status reports the bridge unavailable, give the bundled launcher steps; after relaunch, wait for automatic restoration before asking the user to select the wallpaper again.
- Report
renderMode,fallbackKind, andusedPreviewFallbackhonestly after apply. Describeframesas a decoded animation sequence, not direct video playback. - Keep
showControlsenabled by default. Tell the user that “皮肤调整” selects a local video and controls fit mode, zoom, position, panel opacity, background scrim, and blur. - The controls panel stays open across a video switch. It shows indeterminate progress while preparing/transcoding, measured 0–100% progress while transferring, green on completion, and red on failure.
- Video and frame playback pause automatically while the Codex window is unfocused, minimized, or hidden, and resume when it becomes active.
- Transcoding writes only to the plugin cache under local application data and never changes a Wallpaper Engine source project. Report compression size and resolution when available.
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.
- 6d ago First seen · 40 lines · 62 tokens per session scan A bf1b7aa37fb8
wallpaper-engine is a skill published in the GitHub repository JonathandNidhog/dsh-plugin-wallpaper-engine-codex (0 stars, last pushed 11d ago), licensed MIT. It adds 62 tokens to every session and 767 once invoked, about $0.0003 per session on Opus 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 2026-08-31.
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