diff --git a/docs/tools-custom/function-tools.md b/docs/tools-custom/function-tools.md
index f8da9cc376..68af989dfd 100644
--- a/docs/tools-custom/function-tools.md
+++ b/docs/tools-custom/function-tools.md
@@ -574,7 +574,8 @@ To use an agent as a tool, wrap the agent with the AgentTool class.
 
 The `AgentTool` class provides the following attributes for customizing its behavior:
 
-* **skip\_summarization** (Python/TypeScript) / **skipSummarization** (Kotlin/Java): (boolean) If set to True, the framework will **bypass the LLM-based summarization** of the tool agent's response. This can be useful when the tool's response is already well-formatted and requires no further processing.
+* **skip\_summarization: bool:** If set to True, the framework will **bypass the LLM-based summarization** of the tool agent\'s response. This can be useful when the tool's response is already well-formatted and requires no further processing.
+* **propagate_grounding_metadata: bool:** (default: `False`) When set to `True`, the tool will automatically forward any grounding metadata (such as Google Search or Vertex AI Search citations) generated by the sub-agent up to the parent agent's session state. This ensures that citations are preserved when using specialized search agents as tools.
 
 ??? "Example"