diff --git a/src/codemodder/result.py b/src/codemodder/result.py
index 42c0bf5f..f3487d5c 100644
--- a/src/codemodder/result.py
+++ b/src/codemodder/result.py
@@ -178,16 +178,22 @@ def fuzzy_column_match(pos: CodeRange, location: Location) -> bool:
 
 class ResultSet(dict[str, dict[Path, list[Result]]]):
     results_for_rule: dict[str, list[Result]]
+    # stores SARIF runs.tool data
+    tools: list[dict[str, dict]]
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.results_for_rule = {}
+        self.tools = []
 
     def add_result(self, result: Result):
         self.results_for_rule.setdefault(result.rule_id, []).append(result)
         for loc in result.locations:
             self.setdefault(result.rule_id, {}).setdefault(loc.file, []).append(result)
 
+    def store_tool_data(self, tool_data: dict):
+        self.tools.append(tool_data)
+
     def results_for_rule_and_file(
         self, context: CodemodExecutionContext, rule_id: str, file: Path
     ) -> list[Result]: