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Arcee AI·Aug 13, 2026·v0.1.2·open source
NAC
NAC is an open-source agent harness designed to manage long-running, complex engineering tasks by separating temporary execution context from persistent workstream state. It utilizes a thread-and-episode architecture where a central orchestrator dispatches parallel workers to complete bounded tasks, ensuring agents maintain focus and intent over extended durations.
AI AgentsAgent HarnessOrchestrationOpen Source
overview
NAC is an open-source agent harness designed to manage long-running, complex engineering tasks by separating temporary execution context from persistent workstream state. It utilizes a thread-and-episode architecture where a central orchestrator dispatches parallel workers to complete bounded tasks, ensuring agents maintain focus and intent over extended durations.
key features
- 01Thread-and-episode architecture for persistent state management
- 02Central orchestrator for task decomposition and parallel worker dispatch
- 03Thread weaving to synthesize information across multiple workstreams
- 04Support for isolated execution environments via sandboxing
- 05MCP server integration for steering by external agents like Claude Code
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