feat: created a new builtin function for agents who can spawn other agents to list available agents via agent__list_available

src/config/mod.rs

@@ -22,6 +22,7 @@ mod update;
 
 pub use self::agent::{
     Agent, AgentVariable, AgentVariables, complete_agent_variables, list_agents,
+    list_agents_with_descriptions,
 };
 #[allow(unused_imports)]
 pub use self::app_config::AppConfig;