SESSION 7
Session 7 — Choosing Agent Architecture
When to use workflows vs agents vs multi-agent — pick the right pattern before you code.
1 hour-7 topics + end-of-session quiz
By the end of this session
- ✓ Distinguish chains, workflows, and agents and know when each is appropriate
- ✓ Name the 5 workflow patterns and the 5 multi-agent patterns and pick the right one for a task
- ✓ Evaluate architectures on performance, cost, and complexity trade-offs
- ✓ Use a decision framework to choose an architecture before writing any code
Prerequisites
Finished Session 6 — you understand tool calling and structured output with LangChainComfortable with the concept of a ReAct loop (observe → think → act)
The learning arc
Fundamentals
lesson 00
Workflows
lesson 01
Multi-agent
02–04
Decision
lesson 05
Real-world
lesson 06
Topics
Concepts
From chains to agents to multi-agent — understand the spectrum.
Reference
Confirm your understanding before Session 8.