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UTF-8 Charset Checker

Checks HTML templates and components declare UTF-8 encoding early in the head.

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

What it does

When installed, the agent reviews web page templates, rendered HTML and shared components to confirm they declare UTF-8 character encoding with a meta charset tag near the top of the head section. It flags missing or late declarations and suggests the fix, so text like accents and emoji displays correctly instead of as garbled characters.

Great for

  • Front-end developers reviewing HTML templates or component libraries
  • Teams auditing server-rendered pages before release
  • Students learning basic HTML document requirements

Skip it if

  • Projects that do not produce HTML, since the rule only applies to browser-facing markup
  • Users expecting it to fix encoding problems in databases or server code, which the skill does not cover

Try asking

  • “Review this base layout template and tell me if the charset declaration is correctly placed.”
  • “Check our shared header component and the rendered HTML output for UTF-8 encoding issues.”
  • “Audit the pages in this folder for a meta charset tag within the first 1024 bytes.”
Step-by-step guide: how to use UTF-8 Charset CheckerInstall, 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.

    charset.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

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

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip charset.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 the rendered HTML output, not only the framework source, since templates can hide where the tag ends up.
  • Ask it to name exact files and elements so fixes are easy to apply.
  • Pair it with other Front-End Checklist skills for a broader HTML review.

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.