Struct BuiltinScorer 

pub struct BuiltinScorer;

The batteries-included scorer: evaluates the built-in Expectation assertions over a run’s RunArtifacts, ignoring the world entirely (World = ()).

This is what removes the “implement a Scorer” step for the common case. Paired with the Agent trait + run_suite, a host scores tool-call / parameter / final-text assertions with zero scoring code of its own.

A malformed regex in a FinalTextMatches expectation can’t surface a Result through the infallible Scorer::score signature, so it is reported as a FAILED predicate whose label names the regex error (rather than panicking or being silently dropped).

Trait Implementations

impl Clone for BuiltinScorer

fn clone(&self) -> BuiltinScorer

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for BuiltinScorer

impl Debug for BuiltinScorer

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BuiltinScorer

fn default() -> BuiltinScorer

Returns the “default value” for a type.

impl Scorer for BuiltinScorer

type World = ()

The world type to score against — must be the same world the paired Harness::World produces (the runner enforces Scorer<World = Harness::World>).

type Expect = Expectation

The host’s predicate type — matches the element type of EvalCase::expect.

fn score( &self, expect: &Expectation, artifacts: &RunArtifacts, _world: &(), ) -> (String, bool)

Score one expect predicate against the post-run world and the run’s artifacts.