An AI agent wins when the job is a single, well-scoped, verifiable task: one worker, one toolset, one output you can check. Agentic AI, meaning the orchestrated system of specialised agents with planning, memory and handoffs, wins when the goal decomposes into subtasks that no single worker completes end to end. The practical rule: start with one agent, and promote to agentic orchestration only when a scored evaluation shows the workflow genuinely needs task decomposition, persistent memory or m...