Agent SDKs & Frameworks
Every major way to build an agent — provider SDKs, LangGraph, CrewAI, DSPy, and the case for no framework at all.
Choosing a Framework
What frameworks buy you, what they cost you, and how to stay portable.
Provider Agent SDKs
First-party stacks from Anthropic, OpenAI, Google, and Vercel, hands-on.
LangChain & LangGraph
The biggest ecosystem in LLM tooling, demystified.
Orchestration Frameworks
LlamaIndex, CrewAI, AutoGen, Semantic Kernel, Haystack — one guide each.
Lightweight & Typed Frameworks
The minimal, type-safe, and optimizer-driven corner of the ecosystem.