CrewAI

I believe that CrewAI's three-tier architecture is one of its most compelling design features.

Practical Benefits especially with DDD approach

• Easy debugging: When something goes wrong, you know exactly which layer to investigate

• Reusable components: Agents and tasks can be shared across multiple crews

• Clear documentation: The structure itself documents your workflow logic

• Team collaboration: Non-technical stakeholders can understand the agent/task/crew metaphor