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Infra, Illustrated.

All visuals AWS Kubernetes DevOps & SRE Foundations AI

Models, tools, and agents

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See what an LLM application sends, what the model sends back, and which code runs the tools in between.

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LangChain: From One Model Call to an Agent

Start with one HTTP call to a model. Add the message list, a tool, and a loop, one idea at a time, then see which of those pieces LangChain names for you.

AI Agents
Tool Calling
Security

foundational · Reviewed Oct 2026Explore →

LangGraph: The Agent Loop as a Graph

Redraw the loop that calls a model and runs its tools as boxes and arrows over one shared record, then see what that buys: your own routing, saved state, resume after a crash, a pause for approval, specialist agents and a run you can watch.

AI Agents
Tool Calling
Reliability

intermediate · Reviewed Oct 2026Explore →

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INFRA ILLUSTRATED Visual deep dives into cloud infrastructure.

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