agent-polygraph is a command-line tool that evaluates AI agent completions for internal contradictions, helping developers and researchers detect hallucinations and improve agent reliability. It is framework-agnostic and integrates with observability tools. Distributed under the MIT license.
agent-polygraph is a LLM eval & observability product. It focuses on detecting and flagging contradictions or hallucinations in AI agent outputs to improve reliability. It is built as an open-source project for AI developers and researchers. agent-polygraph is open source under the MIT license. The product ships for the command line.
Behind agent-polygraph is najemwehbe, and the product first shipped in 2026. Development happens publicly on GitHub with 2 commits in the last 90 days. Key capabilities include lie detection, agent evaluation, and observability.
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