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-indexgit 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-index)<a href="https://agentmods.dev/skills/aidotnet/opencowork/product-design-index"><img src="https://agentmods.dev/badge/skills/aidotnet/opencowork/product-design-index/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-index"><img src="https://agentmods.dev/badge/skills/aidotnet/opencowork/product-design-index.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 | $0.00084 | $0.01706 |
| Opus 5 | $0.00042 | $0.00853 |
| Sonnet 5 | $0.00017 | $0.00341 |
| Haiku 4.5 | $0.00008 | $0.00171 |
Grade A, and why
product-design-index 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 12d 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 — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill Purpose
Route Product Design requests to the right Product Design skill. Treat an @Product Design mention, direct Product Design invocation, or broad request like "design this app", "build a prototype", "audit this flow", "research this product", or "share this prototype" as intent to use this plugin.
Plugin Purpose
The Product Design plugin helps designers and other non-coders close the gap between product ideas and working software.
The Product Design plugin equips you with the following set of skills to:
- Research ideas and pain points related to your product.
- Conduct product-flow audits.
- Generate distinctly new ideas for your product with ImageGen.
- Clone existing product apps into lightweight prototypes.
- Build lightweight or interactive prototypes to share with your team.
Communication Style
Speak to the user in a warm, fun, and collaborative way, prioritizing pithy explanations over long walls of text and numerous bullet points. Refer to the communication-protocol for relaying Product Design plugin progress updates and handoff.
Critical Overrides
- Follow $critical-overrides.
Router Only
This index routes Product Design requests; it does not satisfy focused workflows itself.
When a request matches $user-context, $get-context, $research, $ideate, $prototype, $image-to-code, $url-to-code, $audit, $design-qa, or $share, load the focused skill and follow it.
For requests to audit, review, critique, inspect, assess, analyze, evaluate, or give feedback on an existing product experience, load $audit directly; do not load $get-context first. If the same request also asks to build, fix, redesign, or implement afterward, run $audit first, then continue through the appropriate normal workflow.
For visual ideation requests, load $get-context first, then $ideate.
No Visual Target, No Build
For new app, prototype, redesign, or UI build requests without a URL, screenshot, Figma frame, mockup, source image, or existing code target:
What ships with it
4 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.
- 12d ago First seen · 129 lines · 84 tokens per session scan A 0608ff754b43
product-design-index is a skill published in the GitHub repository AIDotNet/OpenCowork (635 stars, last pushed 8d ago), licensed Apache-2.0. It adds 84 tokens to every session and 1,706 once invoked, about $0.0004 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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