OpenDesign is an open-source, local-first desktop app that lets coding agents create prototypes, dashboards, slide decks, images, video, and design systems as exportable files. It is used by people working with agent runtimes such as Claude Code, Codex, Cursor, and DeepSeek Harness. The catalogue add-ons extend the OpenDesign workflow with skills, instructions, commands, and plugins.
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 nexu-io/open-design --skill fs-editorial-forestgit clone --depth 1 https://github.com/nexu-io/open-designWrote 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/nexu-io/open-design/fs-editorial-forest)<a href="https://agentmods.dev/skills/nexu-io/open-design/fs-editorial-forest"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/fs-editorial-forest/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/nexu-io/open-design/fs-editorial-forest"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/fs-editorial-forest.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00044 | $0.02202 |
| Opus 5 | $0.00022 | $0.01101 |
| Sonnet 5 | $0.00009 | $0.00440 |
| Haiku 4.5 | $0.00004 | $0.00220 |
Grade A, and why
fs-editorial-forest 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 — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Editorial Forest (林间编辑部)
A quiet, considered editorial deck theme — deep forest green, dusty pink, and warm cream paper meet Source Serif 4. Built for quarterly reviews, internal readouts, studio updates, research recaps, and anything that should feel warm and unhurried rather than corporate. Avoid it for content that needs to feel urgent, punchy, or sales-driven.
Ported from the MIT-licensed zarazhangrui/beautiful-html-templates editorial-forest template.
Start from example.html in this plugin folder. It is the locked seed: keep the inline <deck-stage> runtime script, the :root token block, and every layout skin verbatim — replace only slide content. Do not rewrite the design, do not introduce colors or fonts outside the spec below.
Design tokens (locked — list verbatim in :root)
:root {
--green: #2e4a2a; /* forest green — dark canvas + primary text on cream */
--green-deep: #243a21; /* text on pink surfaces */
--green-lite: #3a5a36; /* lighter green tile variant */
--pink: #e89cb1; /* dusty pink — accent, text on green, bar series A */
--pink-deep: #d27e96; /* pink tile border */
--cream: #efe7d4; /* warm cream paper — light canvas, text on green */
--cream-2: #e6dcc4; /* secondary cream tile */
--ink: #1a1a17; /* body text on cream */
--serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;
--mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
}
- No other colors. No gradients, no shadows, no purple/indigo, no pure white or black surfaces.
rgba(239,231,212,0.18)(cream at 18%) is the only permitted alpha, used for chart grid lines. - No other fonts.
Source Serif 4(weights 300–800, weight 500 is the display default) for all headings and body;JetBrains Mono(400/500/700, weight 500 default) for kickers, numbers, captions, and axis labels. Load via the Google Fonts<link>already in the seed.
What ships with it
3 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.
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 · 112 lines · 44 tokens per session scan A 70c785c188a1
fs-editorial-forest is a skill published in the GitHub repository nexu-io/open-design (95,021 stars, last pushed yesterday), licensed Apache-2.0. It adds 44 tokens to every session and 2,202 once invoked, about $0.0002 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 2026-09-03.
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