From 4975b302176b87f0d02432e14586cc5e332f3273 Mon Sep 17 00:00:00 2001
From: Marceline Cramer <cramermarceline@gmail.com>
Date: Wed, 15 Apr 2026 09:15:43 -0600
Subject: [PATCH] Add text document sync language server caps

---
 crates/lsp/src/lib.rs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/crates/lsp/src/lib.rs b/crates/lsp/src/lib.rs
index 507fe6a..e0bc679 100644
--- a/crates/lsp/src/lib.rs
+++ b/crates/lsp/src/lib.rs
@@ -60,7 +60,16 @@ impl LspBackend {
 impl LanguageServer for LspBackend {
     async fn initialize(&self, _: InitializeParams) -> Result<InitializeResult> {
         Ok(InitializeResult {
-            capabilities: ServerCapabilities::default(),
+            capabilities: ServerCapabilities {
+                text_document_sync: Some(TextDocumentSyncCapability::Options(
+                    TextDocumentSyncOptions {
+                        open_close: Some(true),
+                        change: Some(TextDocumentSyncKind::INCREMENTAL),
+                        ..Default::default()
+                    },
+                )),
+                ..Default::default()
+            },
             server_info: Default::default(),
         })
     }