Jun 23, 2026, 5:18 PM

Grading the Grader: Lessons from Evaluating an Agentic Data Analysis System

TickrWire Editorial Desk·Jun 23, 2026, 5:18 PM·1 min read AI-assisted, human-reviewed

Reported by arXiv cs.AI: Grading the Grader: Lessons from Evaluating an Agentic Data Analysis System. Analysis and context written by TickrWire.

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Agentic data analysis systems produce rich outputs, including code, numerical results, and verbal diagnostics. This makes them more challenging to evaluate than single-turn LLM responses. It is therefore necessary to distinguish genuine disagreement between an agent's output and a ground-truth answer from grading artifacts. We investigate how reliably automated graders assess such a system and what strategies improve grading quality by applying LAMBDA, a multi-agent data-analysis system, on 153 numerical QRData tasks from DSGym. We develop and evaluate a three-layer human-AI grading cascade: s

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Grading the Grader: Lessons from Evaluating an Agentic Data Analysis System
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Agentic data analysis systems produce rich outputs, including code, numerical results, and verbal diagnostics. This makes them more challenging to evaluate than single-turn LLM responses. It is therefore necessary to distinguish genuine disagreement between an agent's output and a ground-truth answer from grading artifacts. We investigate how reliably automated graders assess such a system and what strategies improve grading quality by applying LAMBDA, a multi-agent data-analysis system, on 153 numerical QRData tasks from DSGym. We develop and evaluate a three-layer human-AI grading cascade: s

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