core-components

core-components is a skill for Claude Code, Codex from Bilal140202/the-lord-of-the-skills. It costs 27 tokens per session (1,320 once invoked), scanned A, a copy of core-components, MIT.

A guide to using a shared UI component library and design system. It explains how to use predefined components, spacing, colors, and typography values when building interfaces.

In plain words
What is it for?
Use it when building screens with the component library or applying design tokens for spacing, colors, and text. It is also useful when reviewing UI code for hard-coded styles.
Why use it?
It prevents inconsistent styling and behavior caused by manually choosing visual values in different parts of an application. Shared design values make the interface easier to keep consistent.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it when building screens with the component library or applying design tokens for spacing, colors, and text. It is also useful when reviewing UI code for hard-coded styles.

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Install with agentmods
npx agentmods add skills/bilal140202/the-lord-of-the-skills/chriswiles__claude-code-showcase
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 Bilal140202/the-lord-of-the-skills --skill chriswiles__claude-code-showcase
Clone the repo
git clone --depth 1 https://github.com/Bilal140202/the-lord-of-the-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 core-components

README.md
[![agentmods](https://agentmods.dev/badge/skills/bilal140202/the-lord-of-the-skills/chriswiles__claude-code-showcase/github.svg)](https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/chriswiles__claude-code-showcase)
Your own site
<a href="https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/chriswiles__claude-code-showcase"><img src="https://agentmods.dev/badge/skills/bilal140202/the-lord-of-the-skills/chriswiles__claude-code-showcase/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 core-components

Your own site · 80×15
<a href="https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/chriswiles__claude-code-showcase"><img src="https://agentmods.dev/badge/skills/bilal140202/the-lord-of-the-skills/chriswiles__claude-code-showcase.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,320 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 100% copy Near-identical to another mod 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 $0.00027 $0.01320
Opus 5 $0.00014 $0.00660
Sonnet 5 $0.00005 $0.00264
Haiku 4.5 $0.00003 $0.00132

Measured 9d ago against content hash 9b4325340921, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

core-components 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.

Origin

This is a copy

100% identical to core-components — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/gondor/claude-code/ChrisWiles__claude-code-showcase/SKILL.md · 265 lines

How it starts

The opening of the file, as written. The whole thing — 265 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Core Components

Design System Overview

Use components from your core library instead of raw platform components. This ensures consistent styling and behavior.

Design Tokens

NEVER hard-code values. Always use design tokens.

Spacing Tokens

// CORRECT - Use tokens
<Box padding="$4" marginBottom="$2" />

// WRONG - Hard-coded values
<Box padding={16} marginBottom={8} />
Token Value
$1 4px
$2 8px
$3 12px
$4 16px
$6 24px
$8 32px

Color Tokens

// CORRECT - Semantic tokens
<Text color="$textPrimary" />
<Box backgroundColor="$backgroundSecondary" />

// WRONG - Hard-coded colors
<Text color="#333333" />
<Box backgroundColor="rgb(245, 245, 245)" />
Semantic Token Use For
$textPrimary Main text
$textSecondary Supporting text
$textTertiary Disabled/hint text
$primary500 Brand/accent color
$statusError Error states
$statusSuccess Success states

Typography Tokens

<Text fontSize="$lg" fontWeight="$semibold" />
Token Size
$xs 12px
$sm 14px
$md 16px
$lg 18px
$xl 20px
$2xl 24px

Core Components

Box

Base layout component with token support:

<Box
  padding="$4"
  backgroundColor="$backgroundPrimary"
  borderRadius="$lg"
>
  {children}
</Box>

HStack / VStack

Horizontal and vertical flex layouts:

<HStack gap="$3" alignItems="center">
  <Icon name="user" />
  <Text>Username</Text>
</HStack>

<VStack gap="$4" padding="$4">
  <Heading>Title</Heading>
  <Text>Content</Text>
</VStack>

Text

Typography with token support:

<Text
  fontSize="$lg"
  fontWeight="$semibold"
  color="$textPrimary"
>
  Hello World
</Text>

Button

Interactive button with variants:

<Button
  onPress={handlePress}
  variant="solid"
  size="md"
  isLoading={loading}
  isDisabled={disabled}
>
  Click Me
</Button>

Read the full file on GitHub · 265 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 265 lines · 27 tokens per session scan A 9b4325340921

Subscribe to this mod's changes

core-components is a skill published in the GitHub repository Bilal140202/the-lord-of-the-skills (4 stars, last pushed 6d ago), licensed MIT. It adds 27 tokens to every session and 1,320 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to core-components, differing in 0 lines, and is treated as a copy.

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