Agent skill

Component Spec

by Owl-Listener in Owl-Listener/designer-skills

Specify one component — props, states, variants, accessibility, and usage rules.

MITAuto-check passedFrontend & Design

Install Component Spec

skills CLI
$ npx skills add Owl-Listener/designer-skills --skill component-spec -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Owl-Listener/designer-skills component-spec --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/design-systems/skills/component-spec .claude/skills/component-spec && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
component-spec
GitHub stars
2.9k
Used in
1 other repo
Token cost
~332 tokens
SKILL.md length
129 words
Files
1
Skills in repo
107
Repo updated
First seen
Licence
MIT

At a glance

Specify one component — props, states, variants, accessibility, and usage rules.

  • Works in 8 steps: Overview — Name, description, when to… → Anatomy — Visual breakdown, required vs… → Variants — Size (sm/md/lg), style… → …
  • Defining a library component
  • SKILL.md covers What You Do, Specification Structure and Best Practices
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Component Spec is an agent skill from Owl-Listener/designer-skills. Specify one component — props, states, variants, accessibility, and usage rules. Use when defining a library component. For the reusable doc scaffold use documentation-template; for a problem-solution pattern use pattern-library.

Its SKILL.md is about 330 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Frontend & Design, covering Accessibility. The repository describes itself as: Designer Skills Collection: agentic skills, commands, and plugins for design — from research to systems, UI, interaction, and delivery. The licence is MIT.

When your agent uses it

  • Defining a library component
  • Tasks that involve Accessibility

Example prompts

  • “/component-spec”

Workflow steps

8 steps, taken from the first numbered list in SKILL.md.

  1. Overview — Name, description, when to use / not use
  2. Anatomy — Visual breakdown, required vs optional elements
  3. Variants — Size (sm/md/lg), style (primary/secondary/ghost), layout
  4. Props/API — Name, type, default, description, required status
  5. States — Default, hover, focus, active, disabled, loading, error
  6. Behavior — Interactions, animations, responsive behavior, edge cases
  7. Accessibility — ARIA roles, keyboard nav, screen reader, focus management
  8. Usage Guidelines — Do/don't examples, content rules, related components

What it can do on your machine

Read from SKILL.md and the folder at commit 9a6930c. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Component Spec loads about 332 tokens when it runs. Until then it costs about 62 tokens; SKILL.md has 129 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~62
When it runs · the whole SKILL.md, loaded when a task matches
~332

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Owl-Listener/designer-skills at commit 9a6930c, republished under its MIT licence (© Owl-Listener). 129 words, ~332 tokens.

Download SKILL.mdSave it as .claude/skills/component-spec/SKILL.md (or your agent's skills folder).
name
component-spec
description
Specify one component — props, states, variants, accessibility, and usage rules. Use when defining a library component. For the reusable doc scaffold use `documentation-template`; for a problem-solution pattern use `pattern-library`.

Component Spec

You are an expert in writing thorough, implementable component specifications for design systems.

What You Do

You create complete component specs covering anatomy, behavior, variants, states, accessibility, and usage.

Specification Structure

  1. Overview — Name, description, when to use / not use
  2. Anatomy — Visual breakdown, required vs optional elements
  3. Variants — Size (sm/md/lg), style (primary/secondary/ghost), layout
  4. Props/API — Name, type, default, description, required status
  5. States — Default, hover, focus, active, disabled, loading, error
  6. Behavior — Interactions, animations, responsive behavior, edge cases
  7. Accessibility — ARIA roles, keyboard nav, screen reader, focus management
  8. Usage Guidelines — Do/don't examples, content rules, related components

Best Practices

  • Write for both designers and developers
  • Include examples for every variant and state
  • Specify behavior, not just appearance
  • Consider all input methods
  • Document edge cases explicitly

© Owl-Listener, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in design-systems/skills/component-spec of Owl-Listener/designer-skills.

Open the folder on GitHubat commit 9a6930c

Used in 1 other repository

We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in Owl-Listener/designer-skills, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Component Spec next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Component Spec compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Component Spec this skillOwl-Listener/designer-skills2.9k1 repos~332Automated safety check: PassMIT
Web Interface Guidelines Reviewervercel-labs/openreview1.7k98 repos~308Automated safety check: PassNone
Accessibility Reviewmarkmead/hyperui12k1 repos~1.1kAutomated safety check: PassMIT
Web Animation DesignbaptisteArno/typebot.io11k2 repos~2.7kAutomated safety check: PassCustom licence
Accessibility Fixeribelick/ui-skills9.5k4 repos~1.2kAutomated safety check: PassMIT
Wcag Audit PatternsvmDeshpande/ai-agent-automation17811 repos~610Automated safety check: PassApache-2.0

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Questions about Component Spec

What does Component Spec do?

Specify one component — props, states, variants, accessibility, and usage rules. Component Spec is an agent skill from Owl-Listener/designer-skills. Specify one component — props, states, variants, accessibility, and usage rules.

When should I use Component Spec?

Component Spec fits situations like: defining a library component; tasks that involve Accessibility.

How do I install Component Spec in Claude Code?

Run `npx skills add Owl-Listener/designer-skills --skill component-spec -a claude-code`. Or copy the skill folder (design-systems/skills/component-spec in Owl-Listener/designer-skills) into .claude/skills/component-spec in your project. Claude Code loads it when a task matches its description.

How do I install Component Spec in Codex?

Run `npx skills add Owl-Listener/designer-skills --skill component-spec -a codex`. Or copy the skill folder (design-systems/skills/component-spec in Owl-Listener/designer-skills) into .agents/skills/component-spec in your project. Codex loads it when a task matches its description.

Can I use Component Spec in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Owl-Listener/designer-skills --skill component-spec -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/component-spec, .gemini/skills/component-spec, .github/skills/component-spec and .opencode/skills/component-spec in your project.

What does Component Spec need to run?

SKILL.md names no scripts, command-line tools or credentials: Component Spec is instructions for the agent only.

Does Component Spec access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Component Spec safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Component Spec use?

Component Spec is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Component Spec use?

About 332 tokens (SKILL.md is roughly 1.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Component Spec?

Skills that share tags, products or a category with Component Spec: Web Interface Guidelines Reviewer (vercel-labs/openreview, 1.7k stars), Accessibility Review (markmead/hyperui, 12k stars), Web Animation Design (baptisteArno/typebot.io, 11k stars) and Accessibility Fixer (ibelick/ui-skills, 9.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Component Spec?

Owl-Listener (a GitHub user) maintains it in Owl-Listener/designer-skills, which has 2,854 GitHub stars. The repository holds 107 skills in this directory. The repository was last updated on September 5, 2026.

Source: Owl-Listener/designer-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.