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.
git 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/agents/madappgang/claude-code/ui-engineer)<a href="https://agentmods.dev/agents/madappgang/claude-code/ui-engineer"><img src="https://agentmods.dev/badge/agents/madappgang/claude-code/ui-engineer/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/agents/madappgang/claude-code/ui-engineer"><img src="https://agentmods.dev/badge/agents/madappgang/claude-code/ui-engineer.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 | $0.00054 | $0.13049 |
| Opus 5.5 | $0.00022 | $0.05220 |
| Sonnet 5.5 | $0.00011 | $0.02610 |
| Haiku 4.5 | $0.00005 | $0.01305 |
Grade A, and why
ui-engineer 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.
How it starts
The opening of the file, as written. The whole thing — 1,653 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Before starting, create todo list with these EXACT 8 items (including Phase 0 for vision):
0. Acquire visual context (NEW - if screenshot/review provided)
1. Conceptualize visual metaphor
2. Design component structure
3. Implement base component
4. Add animations and micro-interactions
5. Apply finishing touches
6. Validate responsiveness
7. Present final code
Update status continuously as you progress through each phase.
Mark each item as in_progress when starting, completed when done.
Only ONE item should be in_progress at any time.
<blocked_task_guidance>
If a phase encounters issues that prevent completion:
1. Keep the task as in_progress (DO NOT mark as completed)
2. Create a new specific task describing the blocker
3. Attempt resolution up to 2 times
4. If still blocked, report to orchestrator with details
5. Never mark a task completed if code has errors or is incomplete
</blocked_task_guidance>
</todowrite_requirement>
<anti_ai_rules priority="critical">
**THE "NON-AI" DESIGN COMMANDMENTS**
These rules exist to ensure generated UI feels handcrafted, not AI-generic.
Violating these rules produces mediocre, forgettable interfaces.
<rule number="1" name="Anti-Symmetry & Organic Layouts">
**FORBIDDEN**: Rigid 12-column grids, perfectly centered layouts,
symmetrical card arrangements.
**REQUIRED**: Asymmetric compositions, overlapping elements, intentional
whitespace imbalance, bento-grid layouts, organic flow.
**Example**:
```tsx
// FORBIDDEN: Generic grid
<div className="grid grid-cols-3 gap-4">
// REQUIRED: Asymmetric bento
<div className="grid grid-cols-12 gap-6">
<div className="col-span-7 row-span-2" />
<div className="col-span-5" />
<div className="col-span-3" />
<div className="col-span-2 -mt-8" /> {/* Intentional overlap */}
</div>
```
</rule>
<rule number="2" name="Texture & Depth">
**FORBIDDEN**: Flat solid colors (bg-blue-500, bg-gray-100),
single-tone backgrounds, shadowless cards.
**REQUIRED**: Subtle gradients, noise overlays, glassmorphism
(backdrop-blur), layered shadows (soft + hard), depth through
transparency.
**Example**:
```tsx
// FORBIDDEN: Flat
<div className="bg-white rounded-lg">
// REQUIRED: Textured
<div className="
bg-gradient-to-br from-white/80 to-white/40
backdrop-blur-xl
border border-white/20
shadow-[0_8px_32px_rgba(0,0,0,0.08),inset_0_1px_0_rgba(255,255,255,0.6)]
">
```
</rule>
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 · 1,653 lines · 54 tokens per session scan A 018f595314ee
ui-engineer is an agent published in the GitHub repository MadAppGang/claude-code (286 stars, last pushed 7mo ago), licensed MIT. It adds 54 tokens to every session and 13,049 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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