CrewAI

Patterns this framework supports natively

• ★★ Role Assignment — Assign each agent a named role (researcher, writer, critic, planner) with a role-specific prompt, tool palette, and acceptance criteria.
• ★★ Supervisor — Place a coordinating agent above a set of specialised agents and route work to them.
• ★ Handoff — Transfer the active conversation from one agent to another, carrying context across the switch.
• ★ SOP-Encoded Multi-Agent Workflow — Encode a human Standard Operating Procedure (roles, ordered phases, standardised hand-off artefacts) into a multi-agent pipeline so that agents communicate thr…
• ★★ Tool Use — Let the LLM produce typed calls against an external toolkit instead of producing free-form text the surrounding system has to parse.
• ★★ ReAct — Interleave a single thought, a single tool call, and a single observation per step so the agent reasons over fresh evidence.