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 MadAppGang/claude-code --skill ui-style-formatgit clone --depth 1 https://github.com/MadAppGang/claude-codeWrote 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/madappgang/claude-code/ui-style-format)<a href="https://agentmods.dev/skills/madappgang/claude-code/ui-style-format"><img src="https://agentmods.dev/badge/skills/madappgang/claude-code/ui-style-format/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/madappgang/claude-code/ui-style-format"><img src="https://agentmods.dev/badge/skills/madappgang/claude-code/ui-style-format.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00045 | $0.01076 |
| Opus 5.5 | $0.00018 | $0.00430 |
| Sonnet 5.5 | $0.00009 | $0.00215 |
| Haiku 4.5 | $0.00005 | $0.00108 |
Grade A, and why
ui-style-format 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 1mo 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
1 near-identical copy found in the catalogue:
- ui-style-format — 91% identical, 41 lines differ
How it starts
The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI Style Format Specification
Overview
The UI Style system provides a standardized way to define project design preferences
that the ui agent uses during design reviews. It supports both text-based style
definitions and visual reference images.
File Structure
{project}/
.claude/
design-style.md # Main style configuration
design-references/ # Visual reference images
{image}.png # PNG or JPG screenshots
MANIFEST.md # Optional metadata
design-style.md Schema
Required Sections
| Section | Purpose |
|---|---|
| Header | Version, dates, base reference |
| Reference Images | Links to visual references (v2.0+) |
| Brand Colors | Color palette with light/dark modes |
| Typography | Fonts and type scale |
| Spacing | Base unit and scale |
| Component Patterns | Button, input, card styles |
| Design Rules | DO and DON'T guidelines |
Optional Sections
| Section | Purpose |
|---|---|
| Reference URLs | External style guides |
| Style History | Change log |
| MANIFEST.md | Detailed image descriptions |
Reference Images Integration
Storage Location
All reference images MUST be stored in .claude/design-references/.
Supported Formats
| Format | Extension | Recommended Use |
|---|---|---|
| PNG | .png | Screenshots, UI components |
| JPEG | .jpg, .jpeg | Photos, complex imagery |
| WebP | .webp | Modern alternative to PNG/JPEG |
Image Table Format
In the style file, reference images are listed in a table:
## Reference Images
| Image | Description | Captured | Mode |
|-------|-------------|----------|------|
| hero-section.png | Homepage hero | 2026-01-08 | light |
Usage Guidelines Section
Each image should have usage notes:
### Usage Guidelines
- **hero-section.png**: Reference for hero layout, gradient, CTA placement
Parsing the Style File
Section Extraction
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.
- 1mo ago First seen · 183 lines · 45 tokens per session scan A 634653c1ff13
ui-style-format is a skill published in the GitHub repository MadAppGang/claude-code (286 stars, last pushed 7mo ago), licensed MIT. It adds 45 tokens to every session and 1,076 once invoked, about $0.0002 per session on Opus 5.5. 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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