Type Alias: AgentTool

type AgentTool = 
  | FunctionTool
  | HostedTool
  | ToolkitEntry
  | HostedSupervisorTool;

Any tool an agent can invoke: inline function tools (tool()), hosted MCP tools (mcpServer() / raw hosted), toolkit references from plugins (analytics().toolkit()), or adapter-hosted Supervisor-API tools (supervisorTools.*).