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Css Development:Validate

Checked
2389-research·vlatest·frontend·MIT

Helps with CSS, validation as part of building frontend UIs and user experiences workflows.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

Installs under a different name. Its SKILL.md names it authoring-motion-diagrams, not the name it is listed under, so the command below uses that name.
  1. 1

    Run this in your project

    terminal
    $ npx skills add 2389-research/claude-plugins --skill authoring-motion-diagrams -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

2389-research

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned 2389-research/claude-plugins at 562cf93761.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
562cf93761
Manifest
.claude/skills/authoring-motion-diagrams/SKILL.md
Scanned
3 files, 453 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill validates CSS code, identifying syntax errors and potential issues. It can check for missing semicolons, incorrect property names, invalid values, and other common CSS mistakes. The validation process helps ensure the generated or modified CSS is structurally sound and will render correctly in browsers.

When to use it

  • You've generated a large block of CSS and want to quickly verify its correctness before integrating it into a project.
  • You’re refactoring existing CSS and need to confirm that changes haven't introduced any errors.
  • You are debugging rendering issues in a web application and suspect incorrect CSS syntax is the cause.
  • To ensure generated CSS from other AI tools adheres to best practices and avoids common pitfalls.

Key capabilities

  • CSS Syntax Validation
  • Error Identification
  • Potential Issue Detection

Example prompts

  • "Validate this CSS: body { background-color: #f0f0f0; } h1 { color red; }"
  • "Check the following CSS for errors: [paste CSS code here]"
  • "Can you validate this and tell me what's wrong? div.container { width: 50% ; height: 200px }"

Tips & gotchas

The skill relies on standard CSS syntax; it may not catch all semantic or design-related issues. Ensure the provided CSS is complete for accurate validation.