Everything in the Alpaca Mango archives filed under #architecture.
AutoGen is in maintenance mode and Microsoft points new users at Agent Framework. The underlying question still stands — so here is CrewAI against MAF, and the distinction that decides it.
Every agent framework claims to do the same thing, and none of them do. This is a map of what each one is actually for — sorted by the shape of your problem, not by the vendor's pitch.
MCP turns the N-by-M integration problem into N plus M. Write a server once and any client that speaks the protocol can use your tools — which is why it spread so quickly.
A definition narrow enough to be useful: a model that decides its own next action, in a loop, against real tools. If the sequence is fixed, it is a pipeline — and that is usually better.
They are not competitors, and picking between them is a category error. LangChain gives you the parts; LangGraph decides the order they run in — and lets you see it.
Often, no. A while loop, a switch statement and a well-typed tool schema will take you further than the discourse suggests — and leave you with code you can debug.