Criterion-Level Scoring Specialist with Confidence Quantification

The Scorer Agent evaluates each submission against every rubric criterion, providing scores with Chain of Thought reasoning chains that document the decision process. For each criterion, it identifies specific evidence in the submission text (with character offsets for highlighting), maps evidence to performance level descriptors, generates confidence scores with uncertainty ranges, and produces reasoning summaries. Implements inter-rater reliability checks against exemplar calibration data and flags borderline scores for human review.