nac
nac is an open-source agent harness designed for managing ambitious, long-running tasks like experiments, training, and infrastructure. It employs a thread-and-episode architecture where a central orchestrator plans work, launches threads, and receives structured summaries of accomplishments.
nac sits in the Multi-Agent category, so it is usually better judged by workflow fit, deployment style, and team needs than by isolated features alone. Based on the available metadata, it leans most clearly toward Agent Harness for long-running, ambitious tasks. A representative use case is Managing and orchestrating long-running experimental tasks. The listed license is Apache-2.0. GitHub stars are currently 284. Relevant tags include AI Agent, Orchestration.