diff --git a/docs/integrations/environment-toolset.md b/docs/integrations/environment-toolset.md
index 54139b8ba5..eb80789474 100644
--- a/docs/integrations/environment-toolset.md
+++ b/docs/integrations/environment-toolset.md
@@ -30,6 +30,8 @@ implementation for use with the Environment Toolset framework.
 Enable local environment interactions by adding the ***EnvironmentToolset***
 with a ***LocalEnvironment*** instance to your agent's tools.
 
+You can use the optional `max_output_chars` parameter when initializing `EnvironmentToolset` to limit the maximum number of characters returned from file reads or command executions. This helps prevent large file contents or command outputs from exceeding the agent's context window limit.
+
 ```python
 from google.adk import Agent
 from google.adk.environment import LocalEnvironment