chore: better awaiter description (#12901)

Author: jif-oai

codex-rs/core/src/agent/role.rs

@@ -190,13 +190,15 @@ Rules:
                 (
                     "awaiter".to_string(),
                     AgentRoleConfig {
-                        description: Some(r#"Use an `awaiter` agent EVERY TIME you must run a command that might take some time.
+                        description: Some(r#"Use an `awaiter` agent EVERY TIME you must run a command that might take some very long time.
 This includes, but not only:
 * testing
 * monitoring of a long running process
 * explicit ask to wait for something
 
-When YOU wait for the `awaiter` agent to be done, use the largest possible timeout."#.to_string()),
+When YOU wait for the `awaiter` agent to be done, use the largest possible timeout.
+Be patient with the `awaiter`.
+Close the awaiter when you're done with it."#.to_string()),
                         config_file: Some("awaiter.toml".to_string().parse().unwrap_or_default()),
                     }
                 )