Can't select documentation of certain keywords with OCaml

[MarcCoquand]

Heya, I am trying to figure out if this is a bug or I am just using Eglot wrong.

I have the following ocaml code

  Dream.run ~port:Settings.port ~interface:Settings.interface
  @@ Dream.logger
  @@ Dream.sql_pool Settings.connection_string
  @@ Dream.sql_sessions
  @@ Web.Router.router ~registration_enabled:Settings.registration_enabled

If I hover over Dream.run, I get the documentation for it correctly.

However, if I hover over the (@@) symbol, Dream.logger or Settings.connection_string, I do not get any documentation whatsoever. In my other editor (kakoune), this works fine.

I have the following setup for eglot

(use-package eglot
  :ensure t)

;; Allegedly speeds up eglot
(fset #'jsonrpc--log-event #'ignore)

(add-hook 'tuareg-mode-hook 'eglot-ensure)
(add-hook 'typescript-ts-mode-hook 'eglot-ensure)
(add-hook 'terraform-ts-mode-hook 'eglot-ensure)
(setq-default indent-tabs-mode nil
  tab-stop-list    ()
  tab-width        2)

(cl-defmethod project-root ((project (head eglot-project)))
  (cdr project))

(defun my-project-try-tsconfig-json (dir)
  (when-let* ((found (locate-dominating-file dir "tsconfig.json")))
    (cons 'eglot-project found)))

(add-hook 'project-find-functions
          'my-project-try-tsconfig-json nil nil)

(add-to-list 'auto-mode-alist '("\\.ts\\'" . typescript-ts-mode))
(add-to-list 'auto-mode-alist '("\\.tf\\'" . terraform-ts-mode-hook))

'(eglot-extend-to-xref t)
'(eglot-autoreconnect t)
(add-hook 'eglot-managed-mode-hook
          (lambda ()
            "Make sure Eldoc will show us all of the feedback at point."
            (setq-local eldoc-documentation-strategy
                        #'eldoc-documentation-compose)))


(setq eglot-events-buffer-size 0
      eglot-autoshutdown t)

(setq eglot-prefer-plaintext 1)
(setq eldoc-echo-area-use-multiline-p t)

(unless (package-installed-p 'eldoc-box)
  (package-install 'eldoc-box))
(require 'eldoc-box)
(setq eldoc-echo-area-prefer-doc-buffer t)

(add-hook 'eglot-managed-mode-hook (lambda () (eglot-inlay-hints-mode 0)))

I've set it up to manually trigger documentation on demand.