diff --git a/crates/zed/src/main.rs b/crates/zed/src/main.rs
index 811578138d45ff..5e6905716857d7 100644
--- a/crates/zed/src/main.rs
+++ b/crates/zed/src/main.rs
@@ -1,3 +1,4 @@
+// cache-test 2026-10-10: no-op change to measure incremental Zed rebuild cost
 // Disable command line from opening on release mode
 #![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]