lsp: limit to one in-flight LLM query; return visible 'LLM busy' completion item with provider/model; retain chat EOL suppression

1 files changed, 7 insertions, 4 deletions

diff --git a/internal/lsp/server.go b/internal/lsp/server.go
index 7bc52c1..54efdf7 100644
--- a/internal/lsp/server.go
+++ b/internal/lsp/server.go
@@ -40,10 +40,13 @@ type Server struct {
 	// Small LRU cache for recent code completion outputs (keyed by context)
 	compCache      map[string]string
 	compCacheOrder []string // most-recent at end; cap ~10
-	// Outgoing JSON-RPC id counter for server-initiated requests
-	nextID int64
-	// Minimum identifier chars required for manual invoke to bypass prefix checks
-	manualInvokeMinPrefix int
+    // Outgoing JSON-RPC id counter for server-initiated requests
+    nextID int64
+    // Minimum identifier chars required for manual invoke to bypass prefix checks
+    manualInvokeMinPrefix int
+
+    // LLM concurrency guard: allow at most one in-flight request
+    llmBusy bool
 }
 
 // ServerOptions collects configuration for NewServer to avoid long parameter lists.