Daizen Ikehara
Principal Developer Advocate
Auth0
Beyond System Prompts: Securing AI Agents with Fine-Grained Authorization
Industry track
Beyond System Prompts: Securing AI Agents with Fine-Grained Authorization
To make an AI agent useful, we often give it broad access to APIs and data. As systems move from simple retrieval to autonomous action, system-prompt instructions are not an adequate security boundary.
This presentation examines Fine-Grained Authorization patterns for agents: how an agent can inherit a user's permissions, how identity should flow through asynchronous and multi-agent work, and how access can be enforced at the tool and resource level.
Daizen Ikehara
Daizen Ikehara is a Principal Developer Advocate at Auth0. He has worked across C#, JavaScript and frameworks including Angular, React and Vue, and has more than a decade of conference-speaking experience in Japan and across the Asia-Pacific region. He was an organiser of DevRelCon Japan and previously spoke at AI Engineer Melbourne 2026.