FrontierAI.Engineer
Agentic AI Foundations & Architectures

Agent Persona

Also known as: agent role

An agent persona is the identity, tone, and behavioral constraints assigned to an agent through its system prompt. Personas establish how the agent introduces itself, what communication style it adopts, and what boundaries it respects. In multi-agent systems, distinct personas help differentiate agents by function — for example, a cautious reviewer versus an exploratory researcher — and can improve task specialization.