2 files changed, 29 insertions, 4 deletions
diff --git a/library/cpp/yt/error/error-inl.h b/library/cpp/yt/error/error-inl.h
index 1542d008f58..85751e8a3cf 100644
--- a/library/cpp/yt/error/error-inl.h
+++ b/library/cpp/yt/error/error-inl.h
@@ -604,4 +604,24 @@ void FormatValue(TStringBuilderBase* builder, const TErrorOr<T>& error, TStringB
 
 ////////////////////////////////////////////////////////////////////////////////
 
+template <class F, class... As>
+auto RunNoExcept(F&& functor, As&&... args) noexcept -> decltype(functor(std::forward<As>(args)...))
+{
+    return functor(std::forward<As>(args)...);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+inline TStringBuf GetWellKnownLoggingTag(const std::exception&)
+{
+    return "Error"_sb;
+}
+
+inline TStringBuf GetWellKnownLoggingTag(const TError&)
+{
+    return "Error"_sb;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
 } // namespace NYT
diff --git a/library/cpp/yt/error/error.h b/library/cpp/yt/error/error.h
index 13223af8d6c..1e5c2147d82 100644
--- a/library/cpp/yt/error/error.h
+++ b/library/cpp/yt/error/error.h
@@ -475,10 +475,15 @@ void FormatValue(TStringBuilderBase* builder, const TErrorOr<T>& error, TStringB
 ////////////////////////////////////////////////////////////////////////////////
 
 template <class F, class... As>
-auto RunNoExcept(F&& functor, As&&... args) noexcept -> decltype(functor(std::forward<As>(args)...))
-{
-    return functor(std::forward<As>(args)...);
-}
+auto RunNoExcept(F&& functor, As&&... args) noexcept -> decltype(functor(std::forward<As>(args)...));
+
+////////////////////////////////////////////////////////////////////////////////
+
+//! Registers errors as a well-known logging tag (ADL customization point for
+//! library/cpp/yt/logging), so that |YT_TLOG_*(...).With(error)| attaches them under
+//! the "Error" key, rendered after the message in plain text.
+TStringBuf GetWellKnownLoggingTag(const std::exception&);
+TStringBuf GetWellKnownLoggingTag(const TError&);
 
 ////////////////////////////////////////////////////////////////////////////////