# AWS releases UAEF, an open-source framework for evaluating AI agents across frameworks

> Original title: UAEF: A framework-agnostic system for closed-loop evaluation of AI agents

- Source: AWS Machine Learning Blog
- Published: 2026-11-11T15:50:55.000Z
- Bad Influence: https://badinfluence.news/items/los032wk87esxdsa4psjwtmuj
- Original: https://aws.amazon.com/blogs/machine-learning/uaef-a-framework-agnostic-system-for-closed-loop-evaluation-of-ai-agents/

## Summary

AWS introduces the Universal Agent Evaluation Framework (UAEF), which uses adapters to convert traces from LangGraph, LangChain, Strands Agents, and Amazon Bedrock AgentCore into one common format. It scores them with 36 built-in metrics across 7 dimensions and stores results in Amazon DynamoDB and Amazon S3 for version comparison. UAEF is open source under the Apache 2.0 license in the awslabs/uaef GitHub repository.