Trait TurnMiddleware 

pub trait TurnMiddleware: Send + Sync {
    // Provided methods
    fn before_model_call(
        &self,
        _request: &mut ProviderRequest,
    ) -> Result<(), CoreError> { ... }
    fn after_model_call(
        &self,
        _request: &ProviderRequest,
        _response: &mut ModelTurn,
    ) -> Result<(), CoreError> { ... }
    fn pre_tool_call(
        &self,
        _context: &ToolContext,
        _call: &mut ToolCall,
    ) -> Result<(), CoreError> { ... }
    fn post_tool_call(
        &self,
        _context: &ToolContext,
        _result: &mut ToolResult,
    ) -> Result<(), CoreError> { ... }
    fn on_run_finished(&self, _output: &mut RunOutput) -> Result<(), CoreError> { ... }
}

Middleware for a single agent turn.

Unlike the legacy Middleware trait, turn middleware receives mutable access to requests, tool calls, tool results, and the final run output so the chain can both veto and transform a turn.

Provided Methods

fn before_model_call( &self, _request: &mut ProviderRequest, ) -> Result<(), CoreError>

fn after_model_call( &self, _request: &ProviderRequest, _response: &mut ModelTurn, ) -> Result<(), CoreError>

fn pre_tool_call( &self, _context: &ToolContext, _call: &mut ToolCall, ) -> Result<(), CoreError>

fn post_tool_call( &self, _context: &ToolContext, _result: &mut ToolResult, ) -> Result<(), CoreError>

fn on_run_finished(&self, _output: &mut RunOutput) -> Result<(), CoreError>

Implementors