diff --git a/agents-api/agents_api/queries/executions/list_executions.py b/agents-api/agents_api/queries/executions/list_executions.py
index 57daf30c5..d19b4dcc4 100644
--- a/agents-api/agents_api/queries/executions/list_executions.py
+++ b/agents-api/agents_api/queries/executions/list_executions.py
@@ -75,6 +75,16 @@ async def list_executions(
     Returns:
         tuple[str, list]: SQL query and parameters for listing executions.
     """
+
+    if sort_by not in ["created_at", "updated_at"]:
+        raise HTTPException(status_code=400, detail="Invalid sort field")
+
+    if limit > 100 or limit < 1:
+        raise HTTPException(status_code=400, detail="Limit must be between 1 and 100")
+
+    if offset < 0:
+        raise HTTPException(status_code=400, detail="Offset must be >= 0")
+
     return (
         list_executions_query,
         [