Module permission 

Structs

ApprovalRequest

Approval request sent to AgentLoop’s command loop

AutoPermissionDecider

Automatic permission decider (used by SubagentLoop)

InteractivePermissionDecider

Interactive permission decider (used by AgentLoop). Checks PermissionStore first (session grants, overrides), then falls back to sending approval request via channel.

Enums

AutoPermissionMode

Auto-permission modes for subagents

Traits

PermissionDecider

Permission decision interface. TurnRunner calls this when a tool requires approval. Different implementations support interactive (main agent) and automatic (subagent) modes.