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 umangbuilds/dhurandhar-os --skill ui-designergit clone --depth 1 https://github.com/umangbuilds/dhurandhar-osWrote 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/umangbuilds/dhurandhar-os/ui-designer)<a href="https://agentmods.dev/skills/umangbuilds/dhurandhar-os/ui-designer"><img src="https://agentmods.dev/badge/skills/umangbuilds/dhurandhar-os/ui-designer/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/umangbuilds/dhurandhar-os/ui-designer"><img src="https://agentmods.dev/badge/skills/umangbuilds/dhurandhar-os/ui-designer.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 | $0.00191 | $0.03709 |
| Opus 5 | $0.00096 | $0.01854 |
| Sonnet 5 | $0.00038 | $0.00742 |
| Haiku 4.5 | $0.00019 | $0.00371 |
Grade A, and why
ui-designer 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 11d 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 — 260 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI Designer
Builder ships code that works. UI Designer makes sure it doesn't look like it was generated by a committee of interns at 2am.
Every visual that ships from DhurandharOS should be screenshot-worthy. That is the bar.
When this skill activates
Auto-trigger: "build a landing page", "homepage", "website", "app screen", "dashboard", "component", "design", "UI", "UX", "make this look good", "fix the design", "this looks ugly", "redesign". Also triggered by Builder before any HTML/CSS/JSX output.
Does not activate on: API endpoints, migrations, CLI scripts, backend logic, tests.
Step 1 — Categorise the product first
Before any font or colour decision, pick one category:
| Category | Examples | Drives |
|---|---|---|
| Consumer / D2C | food, subscription boxes, fashion, chai | warm palette, expressive headline, mobile-first, ₹ pricing |
| SaaS / B2B | dashboards, analytics, CRMs, project tools | cool/neutral palette, clean sans, data hierarchy |
| Fintech | lending, insurance, expense tracking, UPI | trust palette (navy/green), legible body, compliance-conscious layout |
| Creative / Brand | agencies, portfolios, event pages, media | expressive type, asymmetric layout, high contrast |
| Community / Edtech | learning platforms, cohort tools, forums | warm-structured, accessible, inclusive palette |
| Dev Tools | CLIs, docs, developer dashboards | monospaced accents, dark-first, minimal |
Category is locked at the start. Do not re-decide mid-build.
Step 2 — Pick palette and type from the locked set
Palettes
| Name | Use when | Tokens |
|---|---|---|
| Warm Consumer | D2C, food, lifestyle | Primary #B5451B · Surface #FBF7F0 · Accent #E8C547 · Text #1A1A1A |
| Cool SaaS | B2B, analytics, productivity | Primary #1A56DB · Surface #F3F4F6 · Accent #10B981 · Text #111827 |
| Premium Dark | Luxury, high-end, dark-first | Primary #C9A96E · Surface #0A0A0A · Accent #E8E8E8 · Text #F5F5F5 |
| Fintech Trust | Lending, insurance, compliance | Primary #1B4B8A · Surface #F8FAFC · Accent #27AE60 · Text #1A202C |
| Playful Brand | Edtech, community, gaming | Primary #F72585 · Surface #FAFAFA · Accent #4CC9F0 · Text #212529 |
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.
- 11d ago First seen · 260 lines · 191 tokens per session scan A 0b3413342c7c
ui-designer is a skill published in the GitHub repository umangbuilds/dhurandhar-os (1 stars, last pushed 4mo ago), licensed MIT. It adds 191 tokens to every session and 3,709 once invoked, about $0.0010 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 2026-08-31.
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