> ## Documentation Index
> Fetch the complete documentation index at: https://praison.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# To Model Output • AI Agent SDK
> to_model_output: Optional hook returning a compact, model-facing view of ``result``.
# to\_model\_output
Method
> This is a method of the [**BaseTool**](../classes/BaseTool) class in the [**base**](../modules/base) module.
Optional hook returning a compact, model-facing view of `result`.
`result` is the tool's raw return **value** (the `output` channel),
not the enclosing :class:`ToolResult`. This is the single hook contract
used everywhere: `safe_run` and the agent executor both invoke it with
the output value. Override to feed the LLM a terse summary/diff instead
of the full tool output for context economy; the full `result` still
reaches display, hooks, and tracing. Return `None` (the default) to
keep today's behaviour where the model sees the full output.
## Signature
```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
def to_model_output(result: Any) -> Optional[Any]
```
## Parameters
No description available.
### Returns
The result of the operation.
## Source
`praisonaiagents/tools/base.py` at line 270
***
## Related Documentation