Agent-to-Agent Authorization: Deciding What a Delegated Agent May Do Before It Calls the Next Model
When one AI agent hands work to another, or calls a tool or a model on a user behalf, authentication proves which agent is calling and authorization decides whether that agent may take this action with this data right now. Many agent stacks solve the first and skip the second, so a delegated agent inherits the full permissions of whatever credential it holds. This piece walks the authorization decision on agent-to-agent traffic, the delegated-authority and action-lineage requirements behind it, and how to enforce and record it on the HTTP calls the agents actually make.