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What file types are supported?

AccessLint scans every file changed in a pull request and identifies issues in files containing HTML-style markup, including:

• HTML
• Rails templates — ERB and Slim
• Component templates with HTML-style markup — JSX, TSX, Vue, Svelte
• Markdown

In Markdown, images without alternate text are flagged. In ERB templates, the Rails image_tag helper is checked for alt text; other server-side helpers (like label_tag) aren’t evaluated — only fully formed HTML tags are tested.