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 AIDotNet/OpenCowork --skill product-design-url-to-codegit clone --depth 1 https://github.com/AIDotNet/OpenCoworkWrote 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/aidotnet/opencowork/product-design-url-to-code)<a href="https://agentmods.dev/skills/aidotnet/opencowork/product-design-url-to-code"><img src="https://agentmods.dev/badge/skills/aidotnet/opencowork/product-design-url-to-code/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/aidotnet/opencowork/product-design-url-to-code"><img src="https://agentmods.dev/badge/skills/aidotnet/opencowork/product-design-url-to-code.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- 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 | $0.00034 | $0.01344 |
| Opus 5 | $0.00017 | $0.00672 |
| Sonnet 5 | $0.00007 | $0.00269 |
| Haiku 4.5 | $0.00003 | $0.00134 |
Grade A, and why
product-design-url-to-code 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 10d 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 — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.
URL To Code
Clone <target-url> as a real interactive, frontend-only local app or website. The clone should look and interact like the source.
Critical Overrides
- Refer to the Plugin router $index before proceeding.
- Follow $critical-overrides.
User Context
Before starting, load $user-context and run its preflight script when local shell access is available.
Use saved product URLs, Figma files, screenshots, reference images, codebase paths, Storybook, tokens, design systems, brand assets, component refs, browser preferences, and share targets as grounding material when relevant.
Do not inspect every saved reference. Inspect only what the current task needs.
Workflow
-
Do not start unless
$get-contexthas played back and confirmed the design brief for this exact request. If this skill was invoked directly and the current thread does not already contain that confirmed brief, route to $get-context first. -
CRITICAL STEP: Warn the user that they must follow the target website's terms before proceeding. This workflow is only for apps and websites the user owns, or has permission to recreate.
-
Open the source URL using browser-order.
-
Check that the page is correct.
- Do not continue if it shows the wrong page, a blocked page, a login page, a promo page, a loading screen, an error page, an app-install page, or an unrelated redirect.
- If the page is wrong, try again with another available browser.
- If every browser shows the wrong page, stop and tell the user what you can see.
- Capture the source page carefully.
- Start at the top of the page.
- Scroll down in small steps.
- At each step, capture what is visible.
- Note any new sections, controls, sticky elements, animations, or lazy-loaded assets.
- Continue until the full page has been seen.
- Scroll back to the top and check whether anything changed.
- Repeat on mobile at
390 x 844.
What ships with it
13 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.
- references/browser-order.md 387 B
- references/communication-protocol.md 1.9 KB
- references/critical-overrides.md 6.0 KB
- references/local-prototype-preflight.md 860 B
- scripts/bootstrap-prototype.mjs 3.5 KB runs code
- templates/prototype/.npmrc 40 B
- templates/prototype/AGENTS.md 646 B
- templates/prototype/index.html 296 B
- templates/prototype/package.json 381 B
- templates/prototype/src/App.jsx 60 B
- templates/prototype/src/main.jsx 242 B
- templates/prototype/src/styles.css 145 B
- templates/prototype/vite.config.mjs 280 B 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.
- 10d ago First seen · 125 lines · 34 tokens per session scan A 0bf205474f90
product-design-url-to-code is a skill published in the GitHub repository AIDotNet/OpenCowork (635 stars, last pushed 7d ago), licensed Apache-2.0. It adds 34 tokens to every session and 1,344 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 2026-08-30.
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