validate-html5

Validate HTML5 markup, Canvas API usage, and cross-browser compatibility.

Updated Feb 7, 2026

Search Tags:#accessibility #validation #compatibility #canvas #web standards #html5

Ready to run

npx skills add https://github.com/darenhart/zataka-ts --skill validate-html5

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: validate-html5
Source: https://github.com/darenhart/zataka-ts/tree/main/.claude/skills/validate-html5
Command: npx skills add https://github.com/darenhart/zataka-ts --skill validate-html5

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill ensures your web project adheres to HTML5 standards, functions correctly across browsers, and utilizes modern web APIs effectively, preventing compatibility issues and improving user experience.

Core Features & Use Cases

HTML5 Validation: Checks for correct markup, semantics, and doctype.
Canvas API Verification: Ensures proper usage of the Canvas API for rendering.
Cross-Browser Compatibility: Assesses how well your project works on different browsers.
API Usage Check: Validates the correct implementation of modern browser APIs.
Use Case: Before deploying a new version of your website, run this Skill to catch any HTML errors, ensure it looks good on Chrome, Firefox, and Safari, and verify that all interactive elements are working as expected.

Quick Start

Run the validate-html5 skill to check the HTML5 compatibility of the project.

Frequently Asked Questions about validate-html5

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I validate HTML5 markup and ensure web standards compliance?▼

HTML5 validation checks your project for correct markup, semantics, and doctype to ensure web standards compliance. This Skill identifies compatibility issues and verifies modern API implementation to prevent rendering problems before deployment.

How can I check Canvas API usage for cross-browser compatibility?▼

Canvas API verification assesses proper rendering usage and cross-browser compatibility across specified browsers. This Skill identifies issues related to canvas rendering and modern API implementation to ensure interactive elements work correctly.

Why does my HTML5 project break on different browsers?▼

Cross-browser compatibility issues occur when HTML5 markup or modern browser APIs are implemented incorrectly. This Skill validates your project against web standards and checks rendering behavior across Chrome, Firefox, and Safari to pinpoint discrepancies.

What is the best way to verify modern web API implementation before deployment?▼

Verifying modern web API implementation requires validating correct usage and checking adherence to web standards. This Skill identifies issues with modern browser API implementation and ensures interactive elements function as expected before deployment.

Does HTML5 validation cover accessibility checks for web projects?▼

HTML5 validation includes assessing accessibility issues across specified browsers for web projects. This Skill identifies problems related to markup, canvas rendering, and modern API implementation to improve overall user experience.

When do I need to run an HTML5 compatibility check on my website?▼

You need an HTML5 compatibility check before deploying a new website version to catch HTML errors and verify interactive elements. This Skill ensures your project adheres to web standards and functions correctly across different browsers.