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-annotatedgit 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-annotated)<a href="https://agentmods.dev/skills/nexu-io/open-design/wireframe-annotated"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/wireframe-annotated.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 | $0.00155 | $0.01015 |
| Opus 5 | $0.00077 | $0.00508 |
| Sonnet 5 | $0.00031 | $0.00203 |
| Haiku 4.5 | $0.00015 | $0.00102 |
Grade A, and why
wireframe-annotated 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 3d 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 — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Wireframe Annotated Skill
Produce a single flat, low-fidelity landing-page wireframe with a redline spec. The whole point is "structure + handoff notes, not pixels" — greyboxes carry the layout, numbered pins call out regions, and a right-hand spec panel turns each pin into a short engineering / UX note. Keep it clean and flat; never hand-drawn or scribbly.
Workflow
-
Skip finished UI. This skill explicitly wants a low-fidelity greybox look. Honor type tokens only loosely (one clean sans like Inter / system-ui for labels, one mono like IBM Plex Mono for the spec notes and pin numbers). Use medium-grey fills with defined darker borders so the page reads as a thumbnail — avoid near-white-on-white, which renders blank.
-
Set the two-column shell. LEFT is the wireframe canvas: a browser-chrome framed greybox page. RIGHT is a narrow "ANNOTATIONS / SPEC" panel. Pick ONE accent color (coral or blue) and use it ONLY for the numbered pins and the matching spec numbers — everything else stays greyscale.
-
Lay out the canvas, top to bottom, each block a greybox with a numbered pin absolutely positioned on it:
- Top nav — logo greybox + nav lorem-bars + a primary button block. Pin ①.
- Hero — big headline lorem bars + subhead + two CTA button blocks on the left; a large image placeholder (rect with a diagonal X) on the right. Pin ②.
- Logo strip — a row of 5 small greybox partner logos. Pin ③.
- Feature grid — 3 cards, each an icon square + title bar + 2 text bars. Pin ④.
- Footer — columns of lorem link-bars. Pin ⑤.
-
Mirror every pin in the spec panel. Each spec row = the circled number in the accent color + a short mono/sans note, e.g. "① Sticky nav, 64px, condenses on scroll", "② Hero H1 48/56, CTA pair primary+ghost", "③ 5 partner logos, greyscale", "④ 3-up at ≥960px → 1-up mobile", "⑤ 4-col footer, legal row". Mark the panel and each row with
data-od-id. -
Self-check:
- Every numbered pin on the canvas has exactly one matching spec row.
- The accent color appears ONLY on pins + spec numbers; the rest is greyscale.
- The page should read clearly at thumbnail size; if blocks vanish into the background, darken the fills/borders.
- It must NOT look pixel-perfect or hand-drawn — flat greyboxes only.
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.
- 3d ago First seen · 90 lines · 155 tokens per session scan A 8f0b78d71c4d
wireframe-annotated is a skill published in the GitHub repository nexu-io/open-design (94,311 stars, last pushed today), licensed Apache-2.0. It adds 155 tokens to every session and 1,015 once invoked, about $0.0008 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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