LSP client in Clojure in 200 lines of code

May 10, 2025 LSP client in Clojure in 200 lines of code Awhile ago I was prototyping integrating LLMs with LSP to enable a language model to answer questions about code while having access to code navigation tools provided by language servers. I wasn’t that successful with this prototype, but I found it cool that I could write a minimal LSP client in around 200 lines of code. Of course, it was very helpful that I previously wrote a much more featureful LSP client for the Defold editor… So let me share with you a minimal LSP client, written in Clojure, in under 200 lines. Also, at the end of the post, I’ll share my thoughts on the LSP. Who is the target audience of this blog post? I don’t even know… Clojure developers writing code editors? There are, like, 3 of us! Okay, let’s try to change the scope of this exercise a bit: let’s build a command line linter that uses a language server to do the work. Surely that wouldn’t be a problem… The what Some terminology and scope first. LSP ... Read full article.