frontend-ui-color-reviewer

frontend-ui-color-reviewer is a skill for Claude Code from RaNDoM6913/claude-code-superkit. It costs 36 tokens per session (956 once invoked), scanned B, original, MIT.

A specialist review process for choosing interface colors and themes, including contrast, OKLCH, tinted neutrals, status colors, and light or dark mode. OKLCH is a color format designed to make perceived lightness and color differences easier to reason about.

In plain words
What is it for?
Use it when changing color tokens, palettes, themes, dark mode, or accessibility-related contrast in a user interface.
Why use it?
It helps prevent arbitrary palettes, poor contrast, and theme choices that do not fit how or where people use the product.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: mentions CLAUDE.md; mentions AGENTS.md.

Good fit Use it when changing color tokens, palettes, themes, dark mode, or accessibility-related contrast in a user interface.

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Install with agentmods
npx agentmods add skills/random6913/claude-code-superkit/frontend-ui-color-reviewer
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 RaNDoM6913/claude-code-superkit --skill frontend-ui-color-reviewer
Clone the repo
git clone --depth 1 https://github.com/RaNDoM6913/claude-code-superkit

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 frontend-ui-color-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/skills/random6913/claude-code-superkit/frontend-ui-color-reviewer.svg)](https://agentmods.dev/skills/random6913/claude-code-superkit/frontend-ui-color-reviewer)
Your own site
<a href="https://agentmods.dev/skills/random6913/claude-code-superkit/frontend-ui-color-reviewer"><img src="https://agentmods.dev/badge/skills/random6913/claude-code-superkit/frontend-ui-color-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 956 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00036 $0.00956
Opus 5 $0.00018 $0.00478
Sonnet 5 $0.00007 $0.00191
Haiku 4.5 $0.00004 $0.00096

Measured 7d ago against content hash 44a284a09851, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade B, and why

frontend-ui-color-reviewer scanned grade B with 1 finding 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 7d 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.

Strips warnings and disclaimersmediumAnti-refusal

Omitting safety caveats hides risk from the user and is a common jailbreak preamble.

- Don't moralise: cite the specific reflex pattern
packages/codex/skills/frontend-ui-color-reviewer/SKILL.md · 82 lines

How it starts

The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Frontend UI Color Reviewer

Activates on: palette / theme / color-token changes · dark/light theme added · oklch/hsl/rgb/hex additions · user asks about palette/colors/theme/contrast/dark mode while UI files active.

Phase 0: Context

  1. Read AGENTS.md or CLAUDE.md — product, audience, physical use context
  2. Determine the theme decision by use context, not default preference

Theme Selection by Use Context

Use context Theme
Trading desk, long sessions, dim rooms Dark
Hospital portal, anxious patients, phone at night Light
Children's app, parent supervision Light
Motorcycle forum, 9pm garage Dark
SRE observability, dark office Dark
Wedding planning, Sunday morning Light
Music player for headphones at night Dark
Food magazine over coffee Light

Do not default to light "to be safe" or dark "to look cool". If unclear, ask ONE question: "Is this product consumed in a physical environment that demands dark UI, or is it a default choice?"

Phase 1: Color-Space Audit

  • oklch() throughout, OR explicit HSL rationale
  • #000 / #fff / rgb(0,0,0) / rgb(255,255,255) in color/background/fill/stroke → CRITICAL
  • Tailwind bg-black / text-white / border-black without tinted tokens → WARNING
  • Exception: box-shadow: rgba(0,0,0,α) is OK but tint-oklch is cleaner

Phase 2: Tinted Neutrals

Compare neutral scale against pure gray oklch(N% 0 0):

  • Identical-to-pure-gray neutrals → WARNING; add chroma 0.005–0.02 toward brand hue
  • Tinting must be consistent across scale (same hue, chroma stepped 0.002–0.003 between levels)

Phase 3: Palette Cohesion

  • Chroma peaks in the middle of the scale, not at extremes. oklch(80% 0.08 <h>) → oklch(60% 0.18 <h>) → oklch(25% 0.08 <h>) correct
  • Status colors (success / warning / error / info) as their OWN mini-palettes, not hue-shifted brand
  • 60-30-10: one dominant neutral, one secondary, one rare accent. Overused accent = WARNING

Read the full file on GitHub · 82 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. 7d ago First seen · 82 lines · 36 tokens per session scan B 44a284a09851

Subscribe to this mod's changes

frontend-ui-color-reviewer is a skill published in the GitHub repository RaNDoM6913/claude-code-superkit (2 stars, last pushed 1mo ago), licensed MIT. It adds 36 tokens to every session and 956 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (strips warnings and disclaimers). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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