diff --git a/.gitignore b/.gitignore
index 52dbd04a73..5e85a8882b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -76,6 +76,12 @@ results/
 compile_commands.json
 compile_flags.txt
 
+# cache files of clangd (and probably other tools)
+.cache/
+
+# generated by clang-check for C++ code
+*.plist
+
 # suit manifest keys
 keys/