Skip to main content

The Agent space — What Are AI Agents?

[ ABORT TO HUD ]
SEQ. 1
SEQ. 2
SEQ. 3
SEQ. 4
SEQ. 5

The Agent space

🤖 What Are AI Agents?⏱ 6 min⭐ 50 BASE XP⌨ HANDS-ON LAB

Frameworks & Ecosystems

The agent ecosystem is rapidly expanding. Here is a breakdown of the leading frameworks in 2026:

Framework / ProtocolModel & ArchitectureBest For
LangGraph v1.2+Graph-based state machinesProduction systems: StateGraph, dynamic interrupt() / Command HITL, PostgresSaver, and LangSmith Deployment (formerly LangGraph Platform/Cloud).
OpenAI Agents SDKLightweight production SDK (openai-agents)Typed Agent + Runner.run, handoffs, @function_tool, InputGuardrail / OutputGuardrail, MCPServerStreamableHttp, and built-in tracing.
Anthropic Claude Agent SDKAutonomous loop & workflow patternsclaude-agent-sdk (Python) & @anthropic-ai/claude-agent-sdk (TS, formerly claude-code-sdk) exposing query(), ClaudeSDKClient, and ClaudeAgentOptions.
Google ADK & A2A ProtocolAgent Development Kit & Linux Foundation A2ACross-vendor interoperability via /.well-known/agent-card.json, JSON-RPC 2.0 + SSE streaming, MCPToolset, and RemoteA2aAgent.
CrewAI (Crews + Flows)Role-based teams + event-driven FlowsAutonomous Crew / Task / memory teams orchestrated by deterministic Flow decorators (@start, @listen, @router).
Microsoft Agent FrameworkUnified Semantic Kernel + AutoGen v0.4+microsoft/agent-framework (ChatAgent, @ai_function, graph workflows, MCP/A2A) in Python & .NET, plus autogen-agentchat & AG2.
Vercel AI SDK / CoreApp-first framework toolingStreaming agent UI, generative UI, client-side tool execution, and Next.js full-stack integration.
Managed Agent RuntimesHosted cloud execution (OpenAI / Claude / Azure)Provider-managed ephemeral microVMs, server-side context compaction, and automatic security gating.

Note: Building a raw agent from scratch (a simple while loop) is strongly recommended for learning before adopting complex abstractions like LangChain or CrewAI.

⌨ HANDS-ON LABBenchmark Multi-Agent Framework Capabilities
⭐ +150 XP

Audit installed agent frameworks in your virtual environment verifying LangGraph, AutoGen, and CrewAI compatibility.

1Check installed agent orchestrator packages via pip list.
lab-sandbox — simulated environment
INFINITY LAB SANDBOX v2.6 — simulated shell
Type the command for the current objective. Helpers: "hint", "solution", "clear".
$
OBJECTIVE 1 / 1 — type "hint" if stuck
SYNAPSE VERIFICATION
QUERY 1 // 2
Which framework is best known for using graph-based state machines for reliable production agents?
CrewAI
LangGraph
AutoGPT
Semantic Kernel