diff --git a/aider/special.py b/aider/special.py
index 9be26e28f..c5b88e58b 100644
--- a/aider/special.py
+++ b/aider/special.py
@@ -190,7 +190,7 @@ def is_important(file_path):
     dir_name = os.path.dirname(file_path)
 
     # Check for GitHub Actions workflow files
-    if dir_name.endswith(".github/workflows") and file_name.endswith(".yml"):
+    if os.path.basename(dir_name) == "workflows" and os.path.basename(os.path.dirname(dir_name)) == ".github" and file_name.endswith(".yml"):
         return True
 
     # Check for IDE-specific directories
@@ -198,7 +198,7 @@ def is_important(file_path):
         return True
 
     # Check for Kubernetes config files
-    if "kubernetes" in dir_name.split(os.path.sep) and file_name.endswith(".yaml"):
+    if "kubernetes" in os.path.normpath(dir_name).split(os.sep) and file_name.endswith(".yaml"):
         return True
 
     # Check for migration directories
@@ -206,7 +206,7 @@ def is_important(file_path):
         return True
 
     return file_name in IMPORTANT_FILES or any(
-        file_path.endswith(f"/{name}") for name in IMPORTANT_FILES
+        file_path.endswith(os.path.join('', name)) for name in IMPORTANT_FILES
     )