SYSTEM 06/14 · THE FIELD GUIDE
AI Agents
Models that loop, use tools, remember, and act — the agent loop, MCP, memory, multi-agent systems, and computer use.
Agent Fundamentals
What an agent actually is, how the loop runs, and whether you need one.
Tool Use & Tool Design
Giving agents hands: designing tools, controlling calls, and handling failures.
Tool Use & Function CallsBEGINNERDesigning Tool SchemasINTERMEDIATEWeb Search & BrowsingINTERMEDIATECode Execution vs More ToolsINTERMEDIATENames, Descriptions & GranularityINTERMEDIATEHandling Tool ErrorsINTERMEDIATEParallel Tool CallsINTERMEDIATEStructured Tool OutputsINTERMEDIATEAG-UI ProtocolINTERMEDIATE
Model Context Protocol (MCP)
The USB-C of AI tools: using, building, and securing MCP servers.
MCP (Model Context Protocol)BEGINNERBuilding MCP ServersINTERMEDIATEConnecting Your First ServerBEGINNERBuild Your Own ServerINTERMEDIATETools, Resources & PromptsINTERMEDIATETransports: stdio vs HTTPINTERMEDIATEMCP vs Function CallingINTERMEDIATEMCP Security RisksINTERMEDIATEMCP Authorization & OAuthINTERMEDIATESampling, Roots & ElicitationINTERMEDIATE
Planning & Memory
How agents break down tasks, manage context, and remember across sessions.
Multi-Agent Systems & Computer Use
Teams of agents, subagents, and agents that drive a screen — safely.