← AI Automation & Agents
Lesson 3 — When You Actually Need an Agent
A workflow follows your path. An agent picks its own. Only pay for that when the path really varies.
♪ Download audio
Prefer to listen? Take this lesson on the commute.
- Default to a deterministic workflow; an agent is justified only when the path truly varies per input
- Learn the four patterns: Reflection, Tool Use, Planning, Multi-Agent — and start with Tool Use
- Write tool descriptions as policy: inputs, output shape, a 'use this when' clause and the do-not cases
- Always set a hard step cap, a token budget and an explicit stopping condition before you run an agent live
Loading the quiz…