InfoQ explains the 'agent harness' concept and compares HaaS vs self‑managed builds
An InfoQ article defines the 'agent harness' as the non‑model engineering around an AI model that makes an agent production‑ready, split into development (memory, tools, retrieval, orchestration) and operations (observability, guardrails, cost/control). It compares Harness‑as‑a‑Service (examples: AWS AgentCore) with self‑managed stacks (examples: LangChain + Agent Router/Envoy AI Gateway on Kubernetes), walks through building a sample agent (FinBot), and advises starting minimal and evolving the harness.