diff --git a/.gitignore b/.gitignore
index 3399f39c0..e8fbe0a69 100644
--- a/.gitignore
+++ b/.gitignore
@@ -50,3 +50,9 @@ vite.config.ts.*
 *.sw?
 .history
 .cursor
+
+# Diagnostic documents - DO NOT COMMIT
+docs/问题诊断/*.md
+!docs/问题诊断/README.md
+CLAUDE.md
+AGENTS.md