blame-engine is a pure, I/O-free library that performs blame analysis on multi-agent execution graphs. It processes traces to identify where quality or performance issues originated in LLM-based agent systems. Designed for integration into observability and debugging workflows for AI developers building multi-agent applications.
In the LLM eval & observability space, blame-engine takes a focused approach. It focuses on identifying where quality broke in complex multi-agent AI execution traces. blame-engine is an open-source project aimed at developers. The project is open source (BUSL-1.1). It runs on the command line.
blame-engine first shipped in 2026. It exposes integrations via a public API.
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