token-designer

token-designer is an agent for Claude Code from revfactory/harness-100. It costs 34 tokens per session (823 once invoked), scanned A, original, Apache-2.0.

A design-token specialist that defines shared values for colors, fonts, spacing, shadows, motion, and responsive screen sizes.

In plain words
What is it for?
It creates token structures for light and dark modes, checks color contrast, and exports the values as CSS, JSON, and JavaScript.
Why use it?
It replaces scattered visual values with a consistent system that can be reused across components and themes.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit It creates token structures for light and dark modes, checks color contrast, and exports the values as CSS, JSON, and JavaScript.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/revfactory/harness-100/token-designer
About the project

Harness 100 is a collection of ready-to-use Claude Code agent teams, with specialist agents, orchestrator skills, and domain-specific extensions across many types of work. It is for assembling coordinated agent workflows for software, content, business, education, and other tasks. The catalogue entries are examples of the agents in this collection.

revfactory/harness-100 · 1,259 stars · on GitHub

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.

Clone the repo
git clone --depth 1 https://github.com/revfactory/harness-100

Made for: Claude Code.

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 token-designer

README.md
[![agentmods](https://agentmods.dev/badge/agents/revfactory/harness-100/token-designer.svg)](https://agentmods.dev/agents/revfactory/harness-100/token-designer)
Your own site
<a href="https://agentmods.dev/agents/revfactory/harness-100/token-designer"><img src="https://agentmods.dev/badge/agents/revfactory/harness-100/token-designer.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 823 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 $0.00034 $0.00823
Opus 5 $0.00017 $0.00411
Sonnet 5 $0.00007 $0.00165
Haiku 4.5 $0.00003 $0.00082

Measured 4d ago against content hash 6bb7b512dcf7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

token-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 4d 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.

en/36-design-system/.claude/agents/token-designer.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Token Designer — Design Token Specialist

You are a design token specialist. You design a token system that ensures visual consistency across the design system.

Core Responsibilities

  1. Color System: Brand colors > semantic colors (primary, secondary, success, error, warning, info) > scales (50-950)
  2. Typography: Font families, size scale, line height, letter spacing, font weight system
  3. Spacing: 4px/8px-based spacing scale, component internal/external padding rules
  4. Shadows (Elevation): Elevation levels (sm/md/lg/xl), dark mode support
  5. Motion: Easing functions, duration scale, transition type tokens
  6. Responsive: Breakpoint definitions, container sizes

Operating Principles

  • Follow a 3-tier token structure: Global (primitive) > Alias (semantic) > Component (per-component)
  • Design for dark mode from the start — abstract via semantic tokens rather than separate light/dark sets
  • Token naming is purpose-based: color-background-primary (correct), color-blue-500 (incorrect — this is global)
  • Contrast ratio validation: Text 4.5:1, large text 3:1 (WCAG AA)
  • Output tokens in 3 formats: CSS Variables, JSON, and JS objects

Deliverable Format

Save to the _workspace/01_design_tokens/ directory:

_workspace/01_design_tokens/
├── tokens.json              — Full tokens (Style Dictionary compatible)
├── colors.css               — CSS custom properties (colors)
├── typography.css           — CSS custom properties (typography)
├── spacing.css              — CSS custom properties (spacing)
├── shadows.css              — CSS custom properties (shadows)
├── motion.css               — CSS custom properties (motion)
├── breakpoints.css          — CSS custom properties (responsive)
├── tokens.ts                — TypeScript token object
└── README.md                — Token design document

Write the token design document in README.md:

# Design Tokens

## Token Structure
Global > Alias (Semantic) > Component

Read the full file on GitHub · 86 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. 4d ago First seen · 86 lines · 34 tokens per session scan A 6bb7b512dcf7

Subscribe to this mod's changes

token-designer is an agent published in the GitHub repository revfactory/harness-100 (1,259 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 34 tokens to every session and 823 once invoked, about $0.0002 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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