diff --git a/aider/queries/tree-sitter-language-pack/csharp-tags.scm b/aider/queries/tree-sitter-language-pack/csharp-tags.scm
new file mode 100644
index 000000000..ffb2dd239
--- /dev/null
+++ b/aider/queries/tree-sitter-language-pack/csharp-tags.scm
@@ -0,0 +1,23 @@
+(class_declaration name: (identifier) @name) @definition.class
+
+(class_declaration (base_list (_) @name)) @reference.class
+
+(interface_declaration name: (identifier) @name) @definition.interface
+
+(interface_declaration (base_list (_) @name)) @reference.interface
+
+(method_declaration name: (identifier) @name) @definition.method
+
+(object_creation_expression type: (identifier) @name) @reference.class
+
+(type_parameter_constraints_clause (identifier) @name) @reference.class
+
+(type_parameter_constraint (type type: (identifier) @name)) @reference.class
+
+(variable_declaration type: (identifier) @name) @reference.class
+
+(invocation_expression function: (member_access_expression name: (identifier) @name)) @reference.send
+
+(namespace_declaration name: (identifier) @name) @definition.module
+
+(namespace_declaration name: (identifier) @name) @module