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thedaviddias / charset

Use when reviewing templates, rendered HTML, or shared components related to Declare UTF-8 character encoding. Validate the final browser-facing markup, not just the source framework abstraction.

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SKILL.md
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Declare UTF-8 character encoding

Missing or incorrect charset causes mojibake (garbled text), broken special characters, and security vulnerabilities from character encoding attacks.

Quick Reference

  • Add <meta charset="UTF-8"> as the first element in <head>
  • Must appear within the first 1024 bytes of the document
  • UTF-8 supports all languages and special characters

Check

Verify that this HTML document declares UTF-8 character encoding in the head section and that it's positioned early in the document.

Fix

Add <meta charset="UTF-8"> as the first meta tag in the head section of the HTML document.

Explain

Explain why UTF-8 character encoding is essential for international content support and preventing character display issues.

Code Review

Review templates, server-rendered HTML, and shared components that output markup related to Declare UTF-8 character encoding. Flag exact elements, attributes, and routes where the rendered HTML violates the rule.

For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.

Rule page: https://frontendchecklist.io/rules/html/charset