I can see the value if I'm connecting to MCPs other people have written. Or sharing MCPs for a team.

As a solo dev though, I don't know of any MCPs that are really valuable to me that aren't more valuable exposed as a commandline tool. I have an "imagine" tool that creates/edits images and audio with various services available to it and guidance on how to use it, I have a "think" command that allows claude or (scripts claude or I write) to use different LLMs for different things and with a library of prompts for specialized tasks, etc. I don't have a kagi command but tbh that sounds useful and I may write a little wrapper for it so I can have it from the terminal too, rather than use an MCP.

(None of this is a complaint about MCP btw - just not sure if I'm missing anything that would make it also useful to me right now.)

Something I am interested in, is if claude code would do better with access to a language server. I love how claude produces most of it's diffs by string replace, rather than producing a diff and using an "apply model" like cursor does; but it seems it would be better off if it could "go to definition", "find references", and "rename" rather than use grep etc.

I do see one project in the list you linked to that seems like it's going for that. Although again I'm not sure if that's better than having a language server cli available.