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 wireframe-sketchgit 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/wireframe-sketch)<a href="https://agentmods.dev/skills/nexu-io/open-design/wireframe-sketch"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/wireframe-sketch/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/wireframe-sketch"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/wireframe-sketch.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 | $0.00097 | $0.01042 |
| Opus 5 | $0.00048 | $0.00521 |
| Sonnet 5 | $0.00019 | $0.00208 |
| Haiku 4.5 | $0.00010 | $0.00104 |
Grade A, and why
wireframe-sketch 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.
Copies of this mod
2 near-identical copies found in the catalogue:
- wireframe-sketch — 100% identical, 0 lines differ
- wireframe-sketch — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Wireframe Sketch Skill
Produce a single hand-drawn wireframe page. The whole point is "this is a sketch" — looseness is the brand. Lean into pencil/marker tones, hatched fills, dashed borders, slight rotations.
Workflow
- Skip the DESIGN.md if it pushes for finished UI. This skill explicitly wants a low-fidelity look. Only honor type tokens loosely (system serif for headlines, mono for annotations, marker font fallback).
- Pick the screen variants from the brief — typically 3–4 tab labels like "01 · A · ORGANIZED", "02 · B · DASHBOARD", etc. One is "active", the rest are inactive sketch tabs.
- Layout, in order:
- Page header — bold serif title with a fake "WIREFRAME v0.1" tag pinned next to it (dashed border, slight rotation). Below: one-line subtitle in marker italic + a date / device / fidelity dateline on the right in mono.
- Tab strip — 4–5 labels with marker check-square glyphs. The active one has a highlighter swipe behind it (yellow / orange tint + slight skew).
- Sketch canvas — a graph-paper card (background: 24px × 24px grid
drawn with
linear-gradientlines), with a thick rounded border drawn to look like a sharpie line. - Browser chrome row — three sketched circles + a fake URL bar with a hand-written-style URL.
- Sidebar nav — sketched checkbox + label for each nav item, marker italic. One has a highlighter line through it (active).
- KPI tiles — 3–4 boxes, each with a chunky scribbled number in a marker-style stroke, a tiny accent stamp, and a one-line label.
- Chart placeholder — a card with a hand-drawn axis and a wobbly polyline. Add 3–4 dot markers.
- Bar chart placeholder — a card with hatched-fill rectangles of varying heights.
- Sticky notes — 1–2 yellow / pink notes with marker text, taped with a slightly rotated band, pinned over key regions to call out "next step", "page-1", or "needs review".
- Write a single HTML document:
<!doctype html>through</html>, CSS inline.- Use the system's available "Caveat", "Patrick Hand", or "Architects Daughter" fonts via Google Fonts; otherwise fall back to italic serif.
- Slight rotations everywhere (
transform: rotate(-0.6deg)) to break the grid and feel hand-drawn. data-od-idon header, tabs, sidebar, KPIs, chart, bar-chart, sticky notes.
- Self-check:
- The page should not look pixel-perfect. If it does, you over-rendered.
- Marker / pencil + graph paper + hatched fills + sticky notes are all present; if any is missing, add it.
- The active tab has the highlighter swipe; the others don't.
What ships with it
1 file 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 · 98 lines · 97 tokens per session scan A fd4e93e2cfea
wireframe-sketch is a skill published in the GitHub repository nexu-io/open-design (95,021 stars, last pushed today), licensed Apache-2.0. It adds 97 tokens to every session and 1,042 once invoked, about $0.0005 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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