Borrowing it
Nothing to install: this file belongs to lennix1337/Genexus18MCP. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/lennix1337/Genexus18MCP/main/.gemini/skills/frontend/ui-creator/SKILL.mdgit clone --depth 1 https://github.com/lennix1337/Genexus18MCPWrote 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/lennix1337/genexus18mcp/ui-creator)<a href="https://agentmods.dev/skills/lennix1337/genexus18mcp/ui-creator"><img src="https://agentmods.dev/badge/skills/lennix1337/genexus18mcp/ui-creator/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/lennix1337/genexus18mcp/ui-creator"><img src="https://agentmods.dev/badge/skills/lennix1337/genexus18mcp/ui-creator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 33 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 114 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00082 | $0.03001 |
| Opus 5 | $0.00041 | $0.01501 |
| Sonnet 5 | $0.00016 | $0.00600 |
| Haiku 4.5 | $0.00008 | $0.00300 |
Grade A, and why
ui-creator scanned grade A with 1 finding 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 10d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s -o /dev/null -w "%{http_code}" "<url>" How it starts
The opening of the file, as written. The whole thing — 198 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Converting UI to Web Application
Inputs
- UI images (optional) — image files (PNG, JPG, etc.) of UI screens. When provided, design tokens and style reference are derived from images. When absent, default tokens are used
- Project path (required)
- OpenAPI spec (optional) — YAML/JSON for API service generation. Endpoints that don't map to any image become inferred pages
At least one of UI images or OpenAPI spec must be provided
Workflow
Step 1: Determine target platform
Detect from the project or ask the user:
- Angular project? → Read platform-angular.md
- React project? → Read platform-react.md
Step 2: Inspect project
Follow the platform file for scaffolding and project inspection commands
Ensure playwright and tsx are available:
test -d node_modules/playwright && test -d node_modules/tsx || npm install playwright tsx
npx playwright install chromium
Step 3: Analyze inputs and infer pages
-
Check for instructions: Look for any
.mdfile (e.g.instrucciones.md) in the source directory. If found, read it and use it for:- Business logic: service call triggers, navigation targets, data refresh behaviors
- Visual preferences (if mentioned): colors, theme (dark/light), typography, accent color, layout style — apply these over the default tokens when no images are provided
-
If images are provided:
- View all images with vision capabilities
- Identify image-based pages and routes from filenames or content
- Identify shared layout: compare images to find common elements (header, footer, sidebar, nav) → app shell
- Extract design tokens: follow design-tokens-guide.md to derive CSS custom properties from the first/main image
-
If NO images are provided (OpenAPI-only mode):
- Start with default design tokens from design-tokens-guide.md (see "Default tokens" section), then override with any visual preferences found in the instructions
.md - Infer app shell layout from the OpenAPI structure (e.g. sidebar nav with links to each page)
- Skip Phase A entirely in Step 6 — all pages are generated directly
- Start with default design tokens from design-tokens-guide.md (see "Default tokens" section), then override with any visual preferences found in the instructions
What ships with it
7 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.
- 10d ago First seen · 198 lines · 82 tokens per session scan A bec9facc2e68
ui-creator is a skill published in the GitHub repository lennix1337/Genexus18MCP (30 stars, last pushed today), licensed MIT. It adds 82 tokens to every session and 3,001 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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