HumanGrader class abstract

Anthropic Step 5 / 8: human graders are gold-standard for subjective dimensions, used both for direct scoring and for calibrating LLM judges.

Concrete implementations connect to an application-provided HumanReviewQueue. The default grade flow is:

  1. Push the trial to the queue (non-blocking).
  2. Poll for a verdict; if absent, return a pending Score(value: null).
Implemented types

Constructors

HumanGrader()

Properties

hashCode → int
The hash code for this object.
no setterinherited
kind → GraderKind
Anthropic kind: code / model / human.
no setteroverride
name → String
Stable name. Used as score key in reports.
no setterinherited
passThreshold → double
If a Score.value meets or exceeds this threshold, Score.passed is true. Defaults to 1.0 (binary) but graders may override to support partial credit thresholds.
no setteroverride
queue → HumanReviewQueue
Where to enqueue trials and where to read back human verdicts.
no setter
rubric → String?
Optional rubric prompt shown to human reviewers in the UI.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

grade({required Trial trial, required Transcript transcript, required Outcome outcome, required EvalContext context, ReferenceSolution? referenceSolution}) → Future<Score>
Compute a score for one trial.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited