Arcee Open-Sources NAC: An Agent Harness for Long-Running Tasks
code_star · x · 2026-08-14
Arcee has open-sourced NAC, an agent harness specifically designed for long-running tasks. Available under the Apache 2.0 license on GitHub, NAC merges the most impactful ideas and solutions found by the team for complex, multi-step engineering workloads, signaling the start of agents autonomously running for days. Additionally, Arcee launched an open models API beta, allowing developers to plug in their frontier model of choice to power the NAC framework.
Related event: Arcee Open Sources NAC Long-Running Agent Framework(14 posts)→
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