Struct DefaultResultFormatter 

pub struct DefaultResultFormatter;

Default formatter that wraps results in a status object.

Produces JSON like:

{ "status": "running", "tool": "search" }
{ "status": "completed", "tool": "search", "result": { ... } }
{ "status": "error", "tool": "search", "error": "..." }
{ "status": "cancelled", "call_id": "abc123" }

Trait Implementations

impl ResultFormatter for DefaultResultFormatter

fn format_running(&self, call: &FunctionCall) -> Value

Format the immediate acknowledgment sent when a background tool starts.

fn format_result( &self, call: &FunctionCall, result: Result<Value, ToolError>, ) -> Value

Format the final result after tool completes or fails.

fn format_cancelled(&self, call_id: &str) -> Value

Format a cancellation response.