AI article
What Is an Agent Harness? Harness Engineering Explained
Community description: An agent harness is everything around the model that gives it grounding in reality: the tools it can...
Dev.to | Sep 14, 2026 | Tejas Kumar
Automated excerpt
An agent harness has 6 parts: a tool registry, a model, context management, guardrails, an agent loop and a verify step. That practice is called harness engineering. Every step above was harness engineering. LangChain's anatomy of an agent harness and Birgitta Böckeler's harness engineering for coding agent users both sum it up as agent = model + harness. Is an agent harness the same as the agent loop?
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