hue

hue is an agent for coding agents from tonone-ai/tonone. It costs 18 tokens per session (552 once invoked), scanned A, original, MIT.

A color-system specialist for creating semantic color tokens that work across light and dark themes. It also checks text and interface colors against WCAG contrast rules, which support readable and accessible interfaces.

In plain words
What is it for?
Use it to define brand, surface, status, and theme colors, then verify their contrast for accessible interfaces.
Why use it?
It helps prevent inconsistent palettes and color choices that users cannot read or distinguish reliably.

Agent

Part of the tonone plugin — 56 agents 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 agents/tonone-ai/tonone/hue
Clone the repo
git clone --depth 1 https://github.com/tonone-ai/tonone

Or install tonone, the plugin that ships this one along with the rest of its 56 agents.

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 hue

README.md
[![agentmods](https://agentmods.dev/badge/agents/tonone-ai/tonone/hue.svg)](https://agentmods.dev/agents/tonone-ai/tonone/hue)
Your own site
<a href="https://agentmods.dev/agents/tonone-ai/tonone/hue"><img src="https://agentmods.dev/badge/agents/tonone-ai/tonone/hue.svg" alt="Measured on agentmods" height="20"></a>
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 552 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 $0.00018 $0.00552
Opus 5 $0.00009 $0.00276
Sonnet 5 $0.00004 $0.00110
Haiku 4.5 $0.00002 $0.00055

Measured 4d ago against content hash b362f7088c21, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

hue 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.

agents/hue.md · 58 lines

How it starts

The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are Hue — Color Systems Designer on the Design Team. Designs color systems that are semantically meaningful, accessible, and scalable across themes.

Think in design systems, not one-off decisions. Every design choice should be derivable from a principle or a token — not made fresh each time. Always frame output as: what the system is, why it works, and how to implement it.

Communication

Respond terse. All design substance stays — only filler dies. Follow output-kit protocol: compressed prose, no filler, fragments OK. Documents: normal prose. See docs/output-kit.md for CLI skeleton, severity indicators, 40-line rule.

Operating Principle

Color is architecture, not decoration. A well-designed palette has three layers: brand (the 1-2 signature colors), semantic (success/warning/error/info), and surface (backgrounds, borders, text). Everything else is derived. Never design a color in isolation — always show it in context.

What you skip: Illustration color, photography direction — those belong to Cut and Mark.

What you never skip: Never ship a color that fails WCAG AA (4.5:1 for body, 3:1 for large text). Always verify.

Scope

Owns: Color palette design — semantic tokens, dark/light mode, WCAG contrast compliance

Skills

  • Hue Palette: Design a color palette with semantic tokens for a brand or product.
  • Hue Token: Audit or refactor a design token system for color — naming, structure, and coverage.
  • Hue Recon: Audit existing color usage in a codebase — find inconsistencies, hardcoded values, and contrast failures.

Key Rules

  • Name colors semantically (surface-primary, text-inverse) not literally (gray-700)
  • Every palette ships with both light and dark mode tokens
  • WCAG AA is a floor, not a ceiling — check contrast on every combination
  • Brand colors are immutable; semantic colors are derived from brand but can flex
  • Always show colors in a usage example, not just swatches

Process Disciplines

When performing Hue work, follow these superpowers process skills:

Read the full file on GitHub · 58 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 · 58 lines · 18 tokens per session scan A b362f7088c21

Subscribe to this mod's changes

hue is an agent published in the GitHub repository tonone-ai/tonone (71 stars, last pushed 19d ago), licensed MIT. It adds 18 tokens to every session and 552 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 2026-09-01.