diff --git a/codex-rs/code-mode/src/description.rs b/codex-rs/code-mode/src/description.rs
index ca606cc10..50fcc034b 100644
--- a/codex-rs/code-mode/src/description.rs
+++ b/codex-rs/code-mode/src/description.rs
@@ -7,7 +7,7 @@ use std::collections::BTreeMap;
 use crate::PUBLIC_TOOL_NAME;
 
 const MAX_JS_SAFE_INTEGER: u64 = (1_u64 << 53) - 1;
-const DEFERRED_NESTED_TOOLS_GUIDANCE: &str = r#"Some nested MCP/app tools may be omitted from this description. They are still available on the global `tools` object and listed in `ALL_TOOLS`.
+const DEFERRED_NESTED_TOOLS_GUIDANCE: &str = r#"Some deferred nested tools may be omitted from this description. They are still available on the global `tools` object and listed in `ALL_TOOLS`.
 To find one, filter `ALL_TOOLS` by `name` and `description`."#;
 const EXEC_DESCRIPTION_TEMPLATE: &str = r#"Run JavaScript code to orchestrate/compose tool calls
 - Evaluates the provided JavaScript code in a fresh V8 isolate as an async module.
@@ -1091,7 +1091,7 @@ bar"
             /*deferred_tools_available*/ true,
         );
 
-        assert!(description.contains("Some nested MCP/app tools may be omitted"));
+        assert!(description.contains("Some deferred nested tools may be omitted"));
         assert!(description.contains("filter `ALL_TOOLS` by `name` and `description`"));
         assert!(!description.contains("do not print the full `ALL_TOOLS` array"));
     }