I have issues, but how do I get other LSP features?

I just started making some LSP extensions for Nova, and they seem to be running and I get issues to pop up in a sidebar, but I don’t get any other features like auto complete, jump to definition, hover over classes/variable. I am not sure if there are things I am missing, in either the Syntax files or do I need Completion files for that? Anyone have advice?

Here’s what the one LSP’s debug shows from initialize:

Received JSON-RPC response: number(0) initialize
{
  "jsonrpc" : "2.0",
  "result" : {
    "capabilities" : {
      "signatureHelpProvider" : {
        "triggerCharacters" : [
          "(",
          ","
        ]
      },
      "hoverProvider" : true,
      "implementationProvider" : true,
      "codeActionProvider" : {
        "codeActionKinds" : [
          "quickfix",
          "refactor",
          "refactor.rewrite",
          "source.organizeImports"
        ]
      },
      "definitionProvider" : true,
      "renameProvider" : true,
      "documentHighlightProvider" : false,
      "documentSymbolProvider" : true,
      "typeDefinitionProvider" : true,
      "executeCommandProvider" : {
        "commands" : [
          "as3mxml.addImport",
          "as3mxml.addMXMLNamespace",
          "as3mxml.organizeImportsInUri",
          "as3mxml.organizeImportsInDirectory",
          "as3mxml.quickCompile",
          "as3mxml.getActiveProjectURIs"
        ]
      },
      "completionProvider" : {
        "triggerCharacters" : [
          ".",
          ":",
          " ",
          "<"
        ]
      },
      "documentRangeFormattingProvider" : false,
      "documentFormattingProvider" : true,
      "referencesProvider" : true,
      "textDocumentSync" : 2,
      "workspaceSymbolProvider" : true,
      "workspace" : {
        "workspaceFolders" : {
          "changeNotifications" : true,
          "supported" : true
        }
      }
    }
  },
  "id" : 0
}

Anyone have a good place or example of how to check if some of these feature are being called? Can I override something to see if code completing is actually sending or getting a response?