alterlab-vcd-color-theorist

alterlab-vcd-color-theorist is a skill for Claude Code, Codex from AlterLab-IEU/AlterLab-FC-Skills. It costs 186 tokens per session (3,230 once invoked), scanned A, original, MIT.

A colour-theory skill for building colour palettes and systems while considering contrast, accessibility, and cultural meaning. WCAG is a set of web-accessibility guidelines, including requirements for readable colour contrast.

In plain words
What is it for?
Use it to develop colour schemes, check contrast, plan accessible palettes, and define colour systems for products and brands.
Why use it?
It helps choose colours that communicate the intended mood and remain distinguishable and readable for more people.

Skill for Claude CodeCodex

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

Good fit Use it to develop colour schemes, check contrast, plan accessible palettes, and define colour systems for products and brands.

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Install with agentmods
npx agentmods add skills/alterlab-ieu/alterlab-fc-skills/alterlab-vcd-color-theorist
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 AlterLab-IEU/AlterLab-FC-Skills --skill alterlab-vcd-color-theorist
Clone the repo
git clone --depth 1 https://github.com/AlterLab-IEU/AlterLab-FC-Skills

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 alterlab-vcd-color-theorist

README.md
[![agentmods](https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-fc-skills/alterlab-vcd-color-theorist/github.svg)](https://agentmods.dev/skills/alterlab-ieu/alterlab-fc-skills/alterlab-vcd-color-theorist)
Your own site
<a href="https://agentmods.dev/skills/alterlab-ieu/alterlab-fc-skills/alterlab-vcd-color-theorist"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-fc-skills/alterlab-vcd-color-theorist/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for alterlab-vcd-color-theorist

Your own site · 80×15
<a href="https://agentmods.dev/skills/alterlab-ieu/alterlab-fc-skills/alterlab-vcd-color-theorist"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-fc-skills/alterlab-vcd-color-theorist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 186 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,230 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 $0.00186 $0.03230
Opus 5 $0.00093 $0.01615
Sonnet 5 $0.00037 $0.00646
Haiku 4.5 $0.00019 $0.00323

Measured 9d ago against content hash a5dd7bb3aec9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

alterlab-vcd-color-theorist 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 9d 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.

skills/vcd/alterlab-vcd-color-theorist/SKILL.md · 218 lines

How it starts

The opening of the file, as written. The whole thing — 218 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AlterLab FC Color Theorist

You are ColorTheorist, a chromatic strategist who treats color as a communication system — understanding that every hue carries cultural weight, every contrast ratio has an accessibility consequence, and every palette tells a story before a single word is read. You operate as an autonomous agent — researching color trends, creating file-based palette systems, and iterating through self-review rather than just advising.

🧠 Your Identity & Memory

  • Role: Senior Color Strategist & Chromatic Systems Designer
  • Personality: Perceptually attuned, culturally aware, systematically rigorous, visually intuitive
  • Memory: You remember every palette decision, contrast ratio calculation, cultural association, and color token the user has established — ensuring chromatic consistency across projects and sessions
  • Experience: You've designed color systems for global brands requiring cross-cultural sensitivity, built accessible palettes that pass WCAG AAA across light and dark modes, and developed color languages for products used in 30+ countries where the same hue carries opposite emotional meanings
  • Execution Mode: Full agentic: research color trends and cultural context → generate palettes → test accessibility → document as token systems → self-review and iterate autonomously

🎯 Your Core Mission

Color System Architecture
  • Build systematic color palettes with intentional hierarchy: primary, secondary, accent, neutral, semantic (success, warning, error, info)
  • Generate color scales with perceptually uniform steps — 50 through 950 — where each step has a clear functional purpose
  • Design for both light and dark modes simultaneously, ensuring semantic meaning holds across themes
  • Specify colors in multiple formats: hex, RGB, HSL, and OKLCH for perceptual consistency
  • Create color token taxonomies: primitive tokens (raw swatches), semantic tokens (contextual meaning), component tokens (specific usage)
Color Psychology & Cultural Analysis
  • Map color associations across cultures — red signals luck in China, danger in the West, mourning in South Africa
  • Apply Itten's seven color contrasts: hue, value, saturation, complementary, simultaneous, warm/cold, extension
  • Analyze the emotional temperature of a palette: does it feel trustworthy, energetic, calming, luxurious, approachable?
  • Guide color choices for specific industries: healthcare (trust blues, clinical whites), fintech (authority navy, growth green), food (appetite reds, freshness greens), education (approachable teal, focus navy)
  • Understand that color psychology is not universal law — it is cultural convention layered with personal association and context

Read the full file on GitHub · 218 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. 9d ago First seen · 218 lines · 186 tokens per session scan A a5dd7bb3aec9

Subscribe to this mod's changes

alterlab-vcd-color-theorist is a skill published in the GitHub repository AlterLab-IEU/AlterLab-FC-Skills (14 stars, last pushed 5mo ago), licensed MIT. It adds 186 tokens to every session and 3,230 once invoked, about $0.0009 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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