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diff --git a/src/buildtool/execution_api/common/tree_reader_utils.hpp b/src/buildtool/execution_api/common/tree_reader_utils.hpp
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+// Copyright 2024 Huawei Cloud Computing Technology Co., Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef INCLUDED_SRC_BUILDTOOL_EXECUTION_API_COMMON_TREE_READER_UTILS_HPP
+#define INCLUDED_SRC_BUILDTOOL_EXECUTION_API_COMMON_TREE_READER_UTILS_HPP
+
+#include <filesystem>
+#include <functional>
+#include <optional>
+#include <string>
+
+#include "src/buildtool/common/artifact.hpp"
+#include "src/buildtool/common/bazel_types.hpp"
+#include "src/buildtool/file_system/git_repo.hpp"
+
+class TreeReaderUtils final {
+  public:
+    using InfoStoreFunc = std::function<bool(std::filesystem::path const&,
+                                             Artifact::ObjectInfo const&)>;
+
+    /// \brief Read object infos from directory.
+    /// \returns true on success.
+    [[nodiscard]] static auto ReadObjectInfos(
+        bazel_re::Directory const& dir,
+        InfoStoreFunc const& store_info) noexcept -> bool;
+
+    /// \brief Read object infos from git tree.
+    /// \returns true on success.
+    [[nodiscard]] static auto ReadObjectInfos(
+        GitRepo::tree_entries_t const& entries,
+        InfoStoreFunc const& store_info) noexcept -> bool;
+
+    /// \brief Create descriptive string from Directory protobuf message.
+    [[nodiscard]] static auto DirectoryToString(
+        bazel_re::Directory const& dir) noexcept -> std::optional<std::string>;
+
+    /// \brief Create descriptive string from Git tree entries.
+    [[nodiscard]] static auto GitTreeToString(
+        GitRepo::tree_entries_t const& entries) noexcept
+        -> std::optional<std::string>;
+};
+
+#endif  // INCLUDED_SRC_BUILDTOOL_EXECUTION_API_COMMON_TREE_READER_UTILS_HPP