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AI/TLDR

SYSTEM 07/14 · THE FIELD GUIDE

Agent SDKs & Frameworks

Every major way to build an agent — provider SDKs, LangGraph, CrewAI, DSPy, and the case for no framework at all.

5 TRACKS44 ARTICLESbeginner → advanced

Choosing a Framework

What frameworks buy you, what they cost you, and how to stay portable.

Agent FrameworksBEGINNER Framework ComparisonINTERMEDIATE A Decision GuideBEGINNER No-Code BuildersBEGINNER Graphs, Loops & CrewsINTERMEDIATE Just the API & a LoopINTERMEDIATE Framework Lock-In & PortabilityINTERMEDIATE Python vs TypeScript StacksBEGINNER Production-Readiness ChecklistINTERMEDIATE Agno PlatformINTERMEDIATE Microsoft Agent FrameworkINTERMEDIATE

Provider Agent SDKs

First-party stacks from Anthropic, OpenAI, Google, and Vercel, hands-on.

Claude Agent SDKBEGINNER OpenAI Agents SDKBEGINNER Google ADKINTERMEDIATE Vercel AI SDKBEGINNER Provider SDK ComparisonINTERMEDIATE Strands AgentsINTERMEDIATE Provider SDK vs FrameworkINTERMEDIATE Google ADK & A2AINTERMEDIATE OpenAI Agents SDK HandoffsINTERMEDIATE

LangChain & LangGraph

The biggest ecosystem in LLM tooling, demystified.

LangChainBEGINNER LangGraphINTERMEDIATE LangChain vs LangGraphINTERMEDIATE LangSmithINTERMEDIATE LCELINTERMEDIATE Persistence & CheckpointersINTERMEDIATE Migrating Off LangChainINTERMEDIATE

Orchestration Frameworks

LlamaIndex, CrewAI, AutoGen, Semantic Kernel, Haystack — one guide each.

LlamaIndexBEGINNER AutoGenBEGINNER CrewAI Multi-Agent TeamsBEGINNER LlamaIndex vs LangChainINTERMEDIATE HaystackINTERMEDIATE Semantic KernelINTERMEDIATE CrewAI vs AutoGenINTERMEDIATE smolagentsINTERMEDIATE

Lightweight & Typed Frameworks

The minimal, type-safe, and optimizer-driven corner of the ecosystem.

DSPyBEGINNER PydanticAIINTERMEDIATE AgnoINTERMEDIATE InstructorINTERMEDIATE MastraINTERMEDIATE DSPy OptimizersADVANCED AI SDK vs LangChain.jsINTERMEDIATE Spring AIINTERMEDIATE Mastra (TypeScript)INTERMEDIATE