Agent skill

CSS Development

by aiskillstore in aiskillstore/marketplace

This skill should be used when working with CSS, creating components, styling elements, refactoring styles, or reviewing CSS code.

No licenceAuto-check passedFrontend & Design

Install CSS Development

skills CLI
$ npx skills add aiskillstore/marketplace --skill css-development -a claude-code

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

GitHub CLI
$ gh skill install aiskillstore/marketplace css-development --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/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/2389-research/css-development .claude/skills/css-development && 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
css-development
GitHub stars
430
Used in
1 other repo
Token cost
~1.5k tokens
SKILL.md length
499 words
Files
2
Skills in repo
1,085
Repo updated
First seen
Licence
None found

At a glance

This skill should be used when working with CSS, creating components, styling elements, refactoring styles, or reviewing CSS code.

  • Works in 4 steps: Analyze Context → Choose Sub-Skill → Invoke Sub-Skill → …
  • Component styling
  • SKILL.md covers Overview, When This Skill Applies, CSS Development Patterns and Workflow: Context Detection…, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

CSS Development is an agent skill from aiskillstore/marketplace. This skill should be used when working with CSS, creating components, styling elements, refactoring styles, or reviewing CSS code. Triggers on "CSS", "styles", "Tailwind", "dark mode", "component styling", "semantic class", "@apply", "stylesheet". Routes to specialized sub-skills for creation, validation, or refactoring.

Its SKILL.md is about 1.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).

It sits in Frontend & Design, covering CSS and styling, Theming and dark mode and Refactoring. It works with Tailwind CSS. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.

When your agent uses it

  • Component styling
  • Tasks that involve CSS and styling
  • Tasks that involve Theming and dark mode

Example prompts

  • “styles”
  • “Tailwind”
  • “dark mode”
  • “/css-development”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Analyze Context
  2. Choose Sub-Skill
  3. Invoke Sub-Skill
  4. Hand Off Control

What it can do on your machine

Read from SKILL.md and the folder at commit 4ac52da. 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 (its code samples are typescript, css, html and vue).

    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

CSS Development loads about 1.5k tokens when it runs. Until then it costs about 85 tokens; SKILL.md has 499 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~85
When it runs · the whole SKILL.md, loaded when a task matches
~1.5k

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 499 words (~1,507 tokens).

“Comprehensive workflow for CSS development using Tailwind + semantic component patterns. This skill automatically routes you to the appropriate specialized workflow based on context.”

— opening of SKILL.md by aiskillstore
name
css-development

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in skills/2389-research/css-development of aiskillstore/marketplace.

  • SKILL.md
  • skill-report.json

Open the folder on GitHubat commit 4ac52da

Used in 1 other repository

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

Compare with similar skills

CSS Development 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.

CSS Development compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
CSS Development this skillaiskillstore/marketplace4301 repos~1.5kAutomated safety check: PassNone
Refactoring UIwondelai/skills2.4k—~3.9kAutomated safety check: PassMIT
Shadcnpproenca/dot-skills214—~2.5kAutomated safety check: PassMIT
Tailwindpproenca/dot-skills214—~1.8kAutomated safety check: PassMIT
Uniwindpproenca/dot-skills214—~1.9kAutomated safety check: PassMIT
Tailwindcss Developmentanonaddy/anonaddy4.9k10 repos~865Automated safety check: PassMIT

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  • Investigating Codebases

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Works with

Questions about CSS Development

What does CSS Development do?

This skill should be used when working with CSS, creating components, styling elements, refactoring styles, or reviewing CSS code. CSS Development is an agent skill from aiskillstore/marketplace. This skill should be used when working with CSS, creating components, styling elements, refactoring styles, or reviewing CSS code.

When should I use CSS Development?

CSS Development fits situations like: component styling; tasks that involve CSS and styling; tasks that involve Theming and dark mode.

How do I install CSS Development in Claude Code?

Run `npx skills add aiskillstore/marketplace --skill css-development -a claude-code`. Or copy the skill folder (skills/2389-research/css-development in aiskillstore/marketplace) into .claude/skills/css-development in your project. Claude Code loads it when a task matches its description.

How do I install CSS Development in Codex?

Run `npx skills add aiskillstore/marketplace --skill css-development -a codex`. Or copy the skill folder (skills/2389-research/css-development in aiskillstore/marketplace) into .agents/skills/css-development in your project. Codex loads it when a task matches its description.

Can I use CSS Development 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 aiskillstore/marketplace --skill css-development -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/css-development, .gemini/skills/css-development, .github/skills/css-development and .opencode/skills/css-development in your project.

What does CSS Development need to run?

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

Does CSS Development 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 CSS Development 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 CSS Development use?

No licence was found for CSS Development or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does CSS Development use?

About 1.5k tokens (SKILL.md is roughly 6k 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 CSS Development?

Skills that share tags, products or a category with CSS Development: Refactoring UI (wondelai/skills, 2.4k stars), Shadcn (pproenca/dot-skills, 214 stars), Tailwind (pproenca/dot-skills, 214 stars) and Uniwind (pproenca/dot-skills, 214 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains CSS Development?

aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,085 skills in this directory. The repository was last updated on October 7, 2026.

Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.