Providing important content in text and clearly expressing the relationships between titles, lists, and links makes it easier for various tools to use the document. Provide descriptions appropriate to each image’s role and ensure that visible content is also conveyed in accessible text.
JavaScript does not make the page unreadable. You should check the actual rendering results separately from the crawler's rendering support, blocked resources, and login requirements.
llms.txt is not a common required file for all AI crawlers. Google explains that it does not use these files for search results. If you provide it to a specific tool, check its supporting documentation and purpose.