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 julianoczkowski/designer-skills --skill design-briefgit clone --depth 1 https://github.com/julianoczkowski/designer-skillsWrote 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/julianoczkowski/designer-skills/design-brief)<a href="https://agentmods.dev/skills/julianoczkowski/designer-skills/design-brief"><img src="https://agentmods.dev/badge/skills/julianoczkowski/designer-skills/design-brief/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/julianoczkowski/designer-skills/design-brief"><img src="https://agentmods.dev/badge/skills/julianoczkowski/designer-skills/design-brief.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- 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 | $0.00058 | $0.01242 |
| Opus 5 | $0.00029 | $0.00621 |
| Sonnet 5 | $0.00012 | $0.00248 |
| Haiku 4.5 | $0.00006 | $0.00124 |
Grade A, and why
design-brief 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 — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.
This skill creates a design brief through structured conversation. You may skip steps if they are not necessary.
Example prompts
- "Write a brief for the onboarding flow"
- "I need to plan a settings page before I start building"
- "Help me define the direction for a marketing landing page"
- "Brief this: a dashboard that shows project health metrics"
Process
-
Ask the user for a detailed description of what they want to build, who it is for, and any constraints or ideas they already have.
-
Explore the existing codebase to understand the current state. Scan for each of the following specifically:
- CSS variables / tokens: files named
tokens.css,variables.css,theme.css, or:rootdeclarations with custom properties - Tailwind config:
tailwind.config.jsortailwind.config.ts, checktheme.extendfor custom values - UI framework themes: Material UI
createTheme, ChakraextendTheme, shadcnglobals.cssandcomponents.json - Component directories:
components/,ui/,shared/, or any folder containing reusable UI pieces - Storybook:
.storybook/directory or*.stories.*files indicating a documented component library - Design token files: JSON token files (Style Dictionary format, Figma token exports)
- Package.json UI dependencies: tailwindcss, @mui/material, @chakra-ui/react, @radix-ui, lucide-react, framer-motion, etc.
- Font loading: Google Fonts links in HTML,
@font-facedeclarations, font imports in CSS/config - Existing pages/layouts: route files, layout components, page templates that show established patterns
- If components exist, treat them as the starting vocabulary. The brief should extend, not replace.
- CSS variables / tokens: files named
-
Interview the user relentlessly about every aspect of the design until you reach a shared understanding. Walk down each branch of the design tree, resolving dependencies between decisions one by one. For each question, provide your recommended answer.
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 · 121 lines · 58 tokens per session scan A e5b49117e5df
design-brief is a skill published in the GitHub repository julianoczkowski/designer-skills (551 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 58 tokens to every session and 1,242 once invoked, about $0.0003 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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