If you don't mind me asking how do you go about this?
I hear people commonly mention doing this but I can't imagine people are manually adding every page of the docs for libraries or frameworks they're using since unfortunately most are not in one single tidy page easy to copy paste.
Have the AI write a quick script using bs4 or whatever to take the HTML dump and output json, then all the aider-likes can use that json as documentation. Or just the HTML, but that wastes context window.
If you have access to the documentation source, you can concatenate all files into one. Some software also has docs downloadable as PDF.