diff --git a/src/rstd/atomic/modes.rs b/src/rstd/atomic/modes.rs
index f120fb6..afdd7ac 100644
--- a/src/rstd/atomic/modes.rs
+++ b/src/rstd/atomic/modes.rs
@@ -28,11 +28,15 @@ pub trait AtomicModeParse: AtomicBase + ParseMode {
     fn ma_extend(atomic: AExtensionSourceM<Self>, tail: &[u8]) -> AExtensionResultM<Self>;
 }
 
+/// External implementation of [`AtomicModeProxy`].
 pub trait AtomicModeProxy {
+    /// Associated [`AtomicModeParse`].
     type A: AtomicBase + ParseMode;
 
+    /// External implementation of [`AtomicModeParse::ma_deserialize`].
     fn pma_deserialize<I: Inlining>(inlining: I) -> AModeResultM<Self::A, I>;
 
+    /// External implementation of [`AtomicModeParse::ma_extend`].
     fn pma_extend(atomic: AExtensionSourceM<Self::A>, tail: &[u8]) -> AExtensionResultM<Self::A>;
 }