ui-page

ui-page is a skill for Claude Code, Codex from beel-collab/presets.dev. It costs 22 tokens per session (735 once invoked), scanned A, original, MIT.

A guide for scaffolding complete mobile-first pages with StyleSeed Toss layouts, navigation, spacing, and reusable page sections.

In plain words
What is it for?
Use it to start product pages and app screens with a page shell, top bar, bottom navigation, summaries, key actions, and detail cards.
Why use it?
It gives new screens a consistent structure and prevents each page from becoming a disconnected collection of sections.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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/beel-collab/presets.dev/ui-page
Any agent
npx skills add beel-collab/presets.dev --skill ui-page
Clone the repo
git clone --depth 1 https://github.com/beel-collab/presets.dev

Made for: Claude Code, Codex.

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-page

README.md
[![agentmods](https://agentmods.dev/badge/skills/beel-collab/presets.dev/ui-page.svg)](https://agentmods.dev/skills/beel-collab/presets.dev/ui-page)
Your own site
<a href="https://agentmods.dev/skills/beel-collab/presets.dev/ui-page"><img src="https://agentmods.dev/badge/skills/beel-collab/presets.dev/ui-page.svg" alt="Measured on agentmods" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 735 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 5.1 $0.00022 $0.00735
Opus 5 $0.00011 $0.00367
Sonnet 5 $0.00004 $0.00147
Haiku 4.5 $0.00002 $0.00073

Measured 2d ago against content hash 637ac0c561ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

ui-page 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 2d 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.

claude/skills/design/ui-page/SKILL.md · 96 lines

How it starts

The opening of the file, as written. The whole thing — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UI Page

Overview

Part of StyleSeed, this skill scaffolds a complete page or screen using the Toss seed's mobile-first composition rules. It keeps page structure consistent by building on the existing shell, top bar, bottom navigation, and card rhythm instead of producing disconnected sections.

When to Use

  • Use when you need a new page in a Toss-seed app
  • Use when you want a consistent page shell, spacing, and navigation structure
  • Use when you are adding a new product flow and need a solid starting layout
  • Use when you want to stay mobile-first even if the project later expands to larger breakpoints

How It Works

Step 1: Inspect the Existing Shell

Read the current page scaffolding patterns first, especially:

  • page shell
  • top bar
  • bottom navigation
  • representative pages using the same route family

Step 2: Define the Page Purpose

Clarify:

  • the page name
  • the primary user question the screen answers
  • the top one or two actions the user should take

Every screen should have one dominant purpose.

Step 3: Use the Information Pyramid

Lay out the page from highest importance to lowest:

  1. Hero or top summary
  2. KPI or key actions
  3. detail cards or supporting modules
  4. lists, history, or secondary content

Avoid repeating the same section type mechanically from top to bottom.

Step 4: Apply the Toss Layout Rules

Default layout choices:

  • mobile viewport width around max-w-[430px]
  • page background on bg-background
  • horizontal padding around px-6
  • section rhythm with space-y-6
  • generous bottom padding if a bottom nav is present
  • cards using semantic surface tokens, rounded corners, and light shadows

Step 5: Compose Instead of Rebuilding

Use existing ui/ and patterns/ components wherever possible. New pages should primarily orchestrate existing building blocks, not recreate them.

Step 6: Account for Real Device Constraints

  • handle safe-area insets
  • avoid horizontal overflow
  • keep interactive clusters thumb-friendly
  • ensure long content scrolls cleanly without clipping the bottom navigation

Read the full file on GitHub · 96 lines

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. 2d ago First seen · 96 lines · 22 tokens per session scan A 637ac0c561ef

Subscribe to this mod's changes

ui-page is a skill published in the GitHub repository beel-collab/presets.dev (2 stars, last pushed 4mo ago), licensed MIT. It adds 22 tokens to every session and 735 once invoked, about $0.0001 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 2026-09-03.

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