ui-ux-builder

ui-ux-builder is a skill for Claude Code, Codex from pilot617/awesome-claude-code-plugins. It costs 45 tokens per session (1,848 once invoked), scanned B, original, MIT.

A workflow for designing, building, and checking web-app interfaces, including screenshots and responsive layouts.

In plain words
What is it for?
Use it to plan or redesign interfaces, inspect page structure, capture screenshots, and compare an implemented UI with a design.
Why use it?
It gives developers a structured way to turn requirements into a UI and verify that the result looks correct at different screen sizes.

Skill for Claude CodeCodex

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the ui-ux-builder plugin — 1 skill shipped together

Install

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.

agentmods
npx agentmods add skills/pilot617/awesome-claude-code-plugins/ui-ux-builder
Any agent
npx skills add pilot617/awesome-claude-code-plugins --skill ui-ux-builder
Clone the repo
git clone --depth 1 https://github.com/pilot617/awesome-claude-code-plugins

Made for: Claude Code, Codex.

Or install ui-ux-builder, the plugin that ships this one along with the rest of its 1 skill.

Wrote 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.

agentmods badge for ui-ux-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/pilot617/awesome-claude-code-plugins/ui-ux-builder.svg)](https://agentmods.dev/skills/pilot617/awesome-claude-code-plugins/ui-ux-builder)
Your own site
<a href="https://agentmods.dev/skills/pilot617/awesome-claude-code-plugins/ui-ux-builder"><img src="https://agentmods.dev/badge/skills/pilot617/awesome-claude-code-plugins/ui-ux-builder.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,848 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00045 $0.01848
Opus 5 $0.00023 $0.00924
Sonnet 5 $0.00009 $0.00370
Haiku 4.5 $0.00005 $0.00185

Measured 4d ago against content hash 51acc51a2b98, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

ui-ux-builder scanned grade B 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 4d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/screenshot.py, scripts/validate.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Unrestricted tool accessmediumExcessive agency

A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.

Just resolve `$PYTHON` and `$TOOL` as described in Prerequisites, then run any command from the Quick Reference table.
plugins/ui-ux-builder/skills/ui-ux-builder/SKILL.md · 221 lines

How it starts

The opening of the file, as written. The whole thing — 221 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/ui-ux-builder — Full-Lifecycle UI/UX Builder

Full-lifecycle UI/UX skill: requirements gathering -> design plan -> user alignment -> implementation -> visual validation using Playwright.

When to Use

  • Build or redesign UI for a web application
  • Validate web app appearance against design specs
  • Take screenshots of web pages
  • Navigate and inspect page structure
  • Compare implemented UI against design plans
  • Check responsive layouts across breakpoints

Prerequisites

  • Python 3.10+ (system python3 or any project virtual environment)
  • Playwright + Chromium: pip install playwright && python -m playwright install chromium
  • The screenshot tool is at ${CLAUDE_PLUGIN_ROOT}/skills/ui-ux-builder/scripts/screenshot.py
  • The UX plan template is at ${CLAUDE_PLUGIN_ROOT}/skills/ui-ux-builder/template.md
  • A sample completed plan is at ${CLAUDE_PLUGIN_ROOT}/skills/ui-ux-builder/examples/sample.md

Resolving Paths

NEVER hardcode absolute paths. Always resolve dynamically:

  1. Set TOOL="${CLAUDE_PLUGIN_ROOT}/skills/ui-ux-builder/scripts/screenshot.py"
  2. Find Python by searching the project root in order:
    • venv/bin/python
    • .venv/bin/python
    • Any venv_*/bin/python
    • Fall back to system python3
  3. Set PYTHON to the first match found
  4. Use $PYTHON $TOOL in all commands

Example:

# Auto-detect python
if [ -f "venv/bin/python" ]; then PYTHON="venv/bin/python"
elif [ -f ".venv/bin/python" ]; then PYTHON=".venv/bin/python"
else PYTHON="python3"; fi

TOOL="${CLAUDE_PLUGIN_ROOT}/skills/ui-ux-builder/scripts/screenshot.py"
$PYTHON $TOOL http://localhost:3000 -o homepage.png

Workflow

Follow this 6-phase lifecycle:

digraph ui_ux_lifecycle {
    rankdir=LR;
    node [shape=box, style=rounded];

    gather [label="1. Gather\nRequirements"];
    plan [label="2. Create\nUX Plan"];
    align [label="3. Align\nwith User"];
    implement [label="4. Implement\nFrontend"];
    validate [label="5. Validate with\nPlaywright"];
    review [label="6. Review\nwith User"];

    gather -> plan -> align -> implement -> validate -> review;
    review -> implement [label="iterate", style=dashed];
    align -> plan [label="revise", style=dashed];
}

Read the full file on GitHub · 221 lines

Files

What ships with it

4 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.

Changes

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.

  1. 4d ago First seen · 221 lines · 45 tokens per session scan B 51acc51a2b98

Subscribe to this mod's changes

ui-ux-builder is a skill published in the GitHub repository pilot617/awesome-claude-code-plugins (7 stars, last pushed 6mo ago), licensed MIT. It adds 45 tokens to every session and 1,848 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (unrestricted tool access). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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