storyden: Skill for Claude Code

.agents/skills/extract/SKILL.md

extract is a skill for Claude Code from Southclaws/storyden. It costs 31 tokens per session (766 once invoked), scanned A, a copy of extract, MPL-2.0.

A procedure for finding repeated interface elements, shared style values, and useful patterns, then moving them into a design system. A design system is a shared library of reusable interface components and visual rules.

In plain words
What is it for?
Use it to inspect a project, find reusable components or design tokens, and consolidate approved patterns into the existing component library.
Why use it?
It reduces duplicated UI code and inconsistent styles, while requiring confirmation before creating a design system where none exists.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: installed under .agents/ (shared by several agents).

This is Southclaws/storyden's own configuration. It tells Claude Code how to work on storyden itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything storyden configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Southclaws/storyden. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Southclaws/storyden/main/.agents/skills/extract/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Southclaws/storyden

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 extract

README.md
[![agentmods](https://agentmods.dev/badge/skills/southclaws/storyden/extract/github.svg)](https://agentmods.dev/skills/southclaws/storyden/extract)
Your own site
<a href="https://agentmods.dev/skills/southclaws/storyden/extract"><img src="https://agentmods.dev/badge/skills/southclaws/storyden/extract/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 extract

Your own site · 80×15
<a href="https://agentmods.dev/skills/southclaws/storyden/extract"><img src="https://agentmods.dev/badge/skills/southclaws/storyden/extract.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 766 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 88% 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 $0.00031 $0.00766
Opus 5 $0.00015 $0.00383
Sonnet 5 $0.00006 $0.00153
Haiku 4.5 $0.00003 $0.00077

Measured 9d ago against content hash 31e6e3716b78, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

extract 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

88% identical to extract — 8 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.

.agents/skills/extract/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Identify reusable patterns, components, and design tokens, then extract and consolidate them into the design system for systematic reuse.

Discover

Analyze the target area to identify extraction opportunities:

  1. Find the design system: Locate your design system, component library, or shared UI directory (grep for "design system", "ui", "components", etc.). Understand its structure:

    • Component organization and naming conventions
    • Design token structure (if any)
    • Documentation patterns
    • Import/export conventions

    CRITICAL: If no design system exists, ask before creating one. Understand the preferred location and structure first.

  2. Identify patterns: Look for:

    • Repeated components: Similar UI patterns used multiple times (buttons, cards, inputs, etc.)
    • Hard-coded values: Colors, spacing, typography, shadows that should be tokens
    • Inconsistent variations: Multiple implementations of the same concept (3 different button styles)
    • Reusable patterns: Layout patterns, composition patterns, interaction patterns worth systematizing
  3. Assess value: Not everything should be extracted. Consider:

    • Is this used 3+ times, or likely to be reused?
    • Would systematizing this improve consistency?
    • Is this a general pattern or context-specific?
    • What's the maintenance cost vs benefit?

Plan Extraction

Create a systematic extraction plan:

  • Components to extract: Which UI elements become reusable components?
  • Tokens to create: Which hard-coded values become design tokens?
  • Variants to support: What variations does each component need?
  • Naming conventions: Component names, token names, prop names that match existing patterns
  • Migration path: How to refactor existing uses to consume the new shared versions

IMPORTANT: Design systems grow incrementally. Extract what's clearly reusable now, not everything that might someday be reusable.

Extract & Enrich

Build improved, reusable versions:

Read the full file on GitHub · 91 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 · 91 lines · 31 tokens per session scan A 31e6e3716b78

Subscribe to this mod's changes

extract is a skill published in the GitHub repository Southclaws/storyden (335 stars, last pushed 2d ago), licensed MPL-2.0. It adds 31 tokens to every session and 766 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to extract, differing in 8 lines, and is treated as a copy.

Related

Other skills, from other repositories

html-ppt-hermes-cyber-terminal

OpenDesign + BYOK: choosing and wiring your own model, hands-on — cost, quality, and the routing decision. Built as a decision-grade AI literacy deck for engineers, IT, applied-AI teams.

nexu-io/open-design · 53 tokens

html-ppt-taste-brutalist

16:9 HTML deck in tactical-telemetry / CRT-terminal taste. Deactivated-CRT charcoal slides, white-phosphor monospace, hazard-red accent, scanline overlay, ASCII syntax, density over decoration. Distilled from Leonxlnx/taste-skill brutalist-skill (Tactical Telemetry mode).

nexu-io/open-design · 78 tokens

visual-ralph

Visual Ralph orchestration for frontend UI from generated references, static references, or live URL targets, using $ralph with built-in visual verdict and pixel-diff evidence until the implementation matches and leaves a reproducible design system.

Yeachan-Heo/oh-my-codex · 50 tokens

accessibility

Consolidated accessibility skill entrypoint for WCAG 2.2, ARIA Authoring Practices, cognitive accessibility, Section 508, EN 301 549, design intent verification, and the Accessibility Planner workflow.

microsoft/hve-core · 47 tokens

make-resume

A Chinese-language tool for creating editable HTML resumes that can be changed in a browser and printed to PDF. It uses available resume templates when they are installed and otherwise provides a simpler fallback.

Hisn00w/ASu-skills · 86 tokens

prototype-web

A clickable, high-fidelity web product prototype with navigation, a hero section, feature cards, steps, social proof, and optional pricing. It is designed to resemble a finished landing page while remaining a prototype.

nexu-io/html-anything · 24 tokens