ui-tokens

ui-tokens is a skill for Claude Code, Codex from beel-collab/presets.dev. It costs 25 tokens per session (551 once invoked), scanned A, original, MIT.

A tool for managing design tokens, which are named values for colors, spacing, shadows, borders, and typography. It keeps token definitions in JSON aligned with their CSS variables and dark-mode values.

In plain words
What is it for?
Use it to list tokens, add new ones, or update existing colors, spacing, typography, shadows, and radii across a StyleSeed project.
Why use it?
It prevents the design system's source files and actual styles from drifting apart. Changes can otherwise appear correct in one place but remain outdated elsewhere.

Skill for Claude CodeCodex

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

Good fit Use it to list tokens, add new ones, or update existing colors, spacing, typography, shadows, and radii across a StyleSeed project.

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Install with agentmods
npx agentmods add skills/beel-collab/presets.dev/ui-tokens
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.

Any agent
npx skills add beel-collab/presets.dev --skill ui-tokens
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-tokens

README.md
[![agentmods](https://agentmods.dev/badge/skills/beel-collab/presets.dev/ui-tokens.svg)](https://agentmods.dev/skills/beel-collab/presets.dev/ui-tokens)
Your own site
<a href="https://agentmods.dev/skills/beel-collab/presets.dev/ui-tokens"><img src="https://agentmods.dev/badge/skills/beel-collab/presets.dev/ui-tokens.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 551 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00025 $0.00551
Opus 5 $0.00013 $0.00275
Sonnet 5 $0.00005 $0.00110
Haiku 4.5 $0.00003 $0.00055

Measured 3d ago against content hash ac08fc1a2c91, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

ui-tokens 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 3d 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-tokens/SKILL.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UI Tokens

Overview

Part of StyleSeed, this skill manages design tokens without letting the source-of-truth files drift apart. It is meant for teams using the Toss seed's JSON token files and CSS implementation together.

When to Use

  • Use when you need to inspect the current token set
  • Use when you want to add a new color, shadow, radius, spacing, or typography token
  • Use when you need to update a token and propagate the change safely
  • Use when the project has both JSON token files and CSS variables that must stay aligned

How It Works

Supported Actions

  • list: show the current tokens in a human-readable form
  • add: introduce a new token and wire it through the implementation
  • update: change an existing token value and audit the downstream usage

Typical Source-of-Truth Split

For the Toss seed:

  • JSON under tokens/
  • CSS variables and theme wiring under css/theme.css
  • typography support in the font and base CSS files

Rules

  • keep JSON and CSS in sync
  • prefer semantic names over descriptive names
  • provide dark-mode support where relevant
  • update the token implementation, not just the source manifest
  • check for direct component usage that might now be stale

Output

Return:

  1. The requested token inventory or change summary
  2. Every file touched
  3. Any affected components or utilities that should be reviewed
  4. Follow-up actions if the new token requires broader adoption

Best Practices

  • Add semantic intent, not one-off brand shades
  • Avoid token sprawl by extending existing scales first
  • Keep naming consistent with the rest of the system
  • Review contrast and accessibility when introducing new colors

Additional Resources

Limitations

  • Use this skill only when the task clearly matches the scope described above.
  • Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
  • Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

Read the full file on GitHub · 69 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. 3d ago First seen · 69 lines · 25 tokens per session scan A ac08fc1a2c91

Subscribe to this mod's changes

ui-tokens is a skill published in the GitHub repository beel-collab/presets.dev (2 stars, last pushed 4mo ago), licensed MIT. It adds 25 tokens to every session and 551 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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