CrewAI Flows: Event-Driven Multi-Agent Pipelines

Why CrewAI Flows, why now

Single-crew CrewAI scripts are great for a linear demo: researcher → analyst → writer and you are done. The moment you need conditional branching, parallel work that must converge, or human approval between steps, that simple kickoff() stops being enough. CrewAI Flows (stable in CrewAI 0.95+) is the event-driven layer that sits above crews. Decorators (@start, @listen, @router) wire methods into a directed graph, a Pydantic model holds typed state across steps, and the runtime fans out, fans in, and routes for you.