no, cider does

Ok, so not even the simplified completions operation (this one: https://nrepl.org/nrepl/1.1/ops.html#completions) right? Just to be sure, I'm implementing some stuff in my tooling and I'm confirming if it's not a bug on my side 🙂

this has never existed for CLJS no

Oh, I meant for nREPL in CLJ - when I connect to nREPL in Shadow, I first land in clojure-land, and even there there's no "completions" operation right?

no clue tbh. thats the default nrepl server, no clue what it has by default

Oh, that's weird... ok, thanks, I'll try to figure out what's happening.

could be that its controlled by the middleware which I maybe didn't add?

https://github.com/thheller/shadow-cljs/blob/051b5ecc7d701ef45b3bbc839685ac6ea03d4ad7/src/main/shadow/cljs/devtools/server/nrepl.clj#L91-L115

been a while since I looked at nrepl 😛

Right you are - completion is not included - https://github.com/nrepl/nrepl/blob/master/src/clojure/nrepl/middleware/completion.clj.

(For context - I was doing some testing on my plug-in and was connecting to the shadow-cljs nREPL server to run the tests, and that's how I found that trying to run completions got me an error)

Just a last question: is it possible to dynamically add this middleware/operation? Maybe with some config, maybe some API?

:nrepl {:middleware [that.symbol]} in shadow-cljs.edn

dynamically no

(at least not that I know of, that would be an nrepl question)