Struct NousMiddleware 

pub struct NousMiddleware { /* private fields */ }

Arcan middleware that runs Nous evaluators at each hook point.

Created with a populated EvaluatorRegistry and runs the appropriate evaluators at each lifecycle hook. Scores are accumulated and can be retrieved after a run completes.

Implementations

impl NousMiddleware

pub fn new(registry: EvaluatorRegistry) -> Self

Create a new middleware with the given evaluator registry.

pub fn with_on_score( registry: EvaluatorRegistry, on_score: Arc<dyn Fn(&EvalScore) + Send + Sync>, ) -> Self

Create a middleware with a score callback.

pub fn with_defaults() -> Result<Self, NousError>

Create a middleware with the default heuristic evaluators.

pub fn registry_len(&self) -> usize

Number of registered evaluators.

pub fn scores(&self) -> Vec<EvalScore>

Get all accumulated scores from evaluations in this middleware instance.

Trait Implementations

impl Middleware for NousMiddleware

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

fn after_model_call( &self, request: &ProviderRequest, response: &ModelTurn, ) -> Result<(), CoreError>

fn pre_tool_call( &self, context: &ToolContext, call: &ToolCall, ) -> Result<(), CoreError>

fn post_tool_call( &self, context: &ToolContext, result: &ToolResult, ) -> Result<(), CoreError>

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