Struct BasicScorer 

pub struct BasicScorer { /* private fields */ }

Heuristic quality scorer.

Evaluates response quality using three signals:

1. Length – Longer responses score higher (up to 500 words), because very short answers often indicate a refusal or lack of information.
2. Error indicators – Phrases like “I can’t”, “I don’t know”, or “I’m unable” reduce the score.
3. Tool usage – Presence of tool invocation patterns (JSON objects with "tool_use" or "function" keys) increases the score, as it indicates the model is actively fulfilling the request.

Implementations

impl BasicScorer

pub fn new() -> Self

Create a new basic scorer with an empty history.

pub fn history(&self) -> &[(u64, f32)]

Return a read-only view of the scoring history.

Trait Implementations

impl Default for BasicScorer

fn default() -> Self

Returns the “default value” for a type.

impl QualityScorer for BasicScorer

fn score(&self, _request: &str, response: &str) -> f32

Score a response given its originating request.

fn record(&mut self, request: &str, _response: &str, score: f32)

Record a scored observation for future reference.