Session 11 of 12
Session 11

Advanced Architectures

Multi-agent systems, tool use, memory, and the frontier of autonomous AI

⏱ 60 minutes Advanced 📊 Presentation + Study Notes + Lab
What This Session Covers

Session Topics

Multi-Agent Systems

Orchestrator-worker patterns, peer-to-peer agent networks, specialised agent roles, and how agents coordinate on complex tasks.

Tool Use & Function Calling

Giving agents access to search engines, databases, APIs, code interpreters, and the world — the bridge between language and action.

Memory Systems

Short-term (context window), long-term (vector stores), episodic (conversation history), and semantic (knowledge graphs) memory for AI agents.

Planning & Reasoning

ReAct (Reasoning + Acting), Tree-of-Thought, plan-and-execute architectures — how agents decompose complex goals into executable steps.

Agent Frameworks

LangChain, LangGraph, AutoGen, CrewAI — comparing frameworks by architecture philosophy, tooling, and production readiness.

🧪 Lab Exercise

Design Next-Generation Hiring AI Architecture

Design a cutting-edge architecture for your hiring AI using advanced multi-agent and tool-use techniques from Session 11. Justify architectural choices, estimate performance and cost, and compare to simpler alternatives.

Deliverable

A next-generation architecture design document with agent roles, tool definitions, memory strategy, and cost-performance trade-off analysis.

Key Takeaways

  • Multi-agent systems are more capable than single agents on complex, multi-step tasks
  • Tool use transforms LLMs from text generators into action-taking systems
  • Memory architecture determines what an agent can 'remember' and reason about
  • Planning is the skill that separates agentic AI from simple chat assistants
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