# Grounded but Not Immune: Confirmation Bias in Agent-as-a-judge

> **Platform:** [SPIDITS AI](https://spidits.com/) — Real-Time AI News & Market Intelligence  
> **Published:** 2026-11-05T05:00:00.000Z  
> **Category:** PRODUCT_LAUNCH  
> **Impact Score:** 90/100  
> **Primary Source:** [arXiv AI](https://arxiv.org/abs/2611.05662)  
> **Canonical Citation:** [https://spidits.com/timeline/grounded-but-not-immune-confirmation-bias-in-agent-as-a-judge](https://spidits.com/timeline/grounded-but-not-immune-confirmation-bias-in-agent-as-a-judge)

## Executive Summary
Evaluating open-ended agent tasks increasingly falls to an Agent-as-a-Judge: an evaluator handed tools and the agent's full trajectory so it can verify a.

## Why It Matters (Strategic Analysis)
Shows that observable, tool‑equipped evaluation agents are not automatically unbiased, undermining confidence in automated assessment pipelines.

## Referenced Coverage & Sources
- **[arXiv AI](https://arxiv.org/abs/2611.05662)**: Grounded but Not Immune: Confirmation Bias in Agent-as-a-judge — _Evaluating open-ended agent tasks increasingly falls to an Agent-as-a-Judge: an evaluator handed tools and the agent's full trajectory so it can verify a..._

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