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CSS Cascade Layers Reviewer

Reviews CSS for specificity problems and sets up explicit @layer cascade order.

Source Download skill
Repository
thedaviddias/Front-End-Checklist
Stars
74,632
Licence
MIT
Files
2 files

What it does

When installed, the agent reviews your CSS for specificity conflicts, such as overuse of !important, deeply nested selectors, and inline styles used to override components. It can recommend or write an explicit @layer order (reset, base, components, utilities) so that later layers win regardless of selector weight or import order. It is guidance for a CSS codebase rather than a standalone tool.

Great for

  • Front-end developers maintaining a large CSS codebase with recurring override bugs
  • Teams setting up a design system who want a predictable layer order
  • Teams migrating from utility-first or specificity-heavy CSS to a layered architecture

Skip it if

  • Small projects with little CSS, where the setup cost outweighs the benefit
  • Browsers or build setups that do not support cascade layers, since the layered output may not behave as expected there (the skill's files do not cover compatibility)

Try asking

  • “Review this stylesheet for specificity problems and tell me where !important is hiding conflicts.”
  • “Set up a @layer stack for reset, base, components and utilities in our main CSS file.”
  • “Help me migrate our existing component styles into cascade layers without breaking the current look.”
Step-by-step guide: how to use CSS Cascade Layers ReviewerInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 2 original files, the MIT licence and an attribution note.

    cascade-layers.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip cascade-layers.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip cascade-layers.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Point the agent at your main CSS entry file so it can see the import order before proposing a layer stack.
  • Migrate gradually: unlayered styles currently win, so move one area at a time and test visually.
  • Ask for the reasoning as well as the changes, so you can check why a layer order was chosen.

What's inside

  • references/rule.md
  • SKILL.md

Redistributed unmodified from thedaviddias/Front-End-Checklist under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.