diff --git a/src/commit_request.cpp b/src/commit_request.cpp
index 3940f09..344122b 100644
--- a/src/commit_request.cpp
+++ b/src/commit_request.cpp
@@ -332,6 +332,7 @@ void CommitRequest::handle_completed_number() {
           ctx.current_number.data() + ctx.current_number.size(), version);
       if (result.ec == std::errc{}) {
         read_version_ = version;
+        has_read_version_been_set_ = true;
       } else {
         ctx.parse_error = true;
       }
@@ -379,7 +380,8 @@ bool CommitRequest::parse_json(std::string_view json_str) {
     status = WeaselJsonParser_parse(parser, nullptr, 0);
   }
 
-  bool success = (status == WeaselJson_OK) && !parser_context_.parse_error;
+  bool success =
+      (status == WeaselJson_OK) && !parser_context_.parse_error && is_valid();
 
   WeaselJsonParser_destroy(parser);
 
diff --git a/src/commit_request.hpp b/src/commit_request.hpp
index 3ff4491..5ad51d1 100644
--- a/src/commit_request.hpp
+++ b/src/commit_request.hpp
@@ -100,6 +100,7 @@ private:
   std::optional<std::string_view> request_id_;
   std::string_view leader_id_;
   uint64_t read_version_ = 0;
+  bool has_read_version_been_set_ = false;
   std::vector<Precondition, ArenaStlAllocator<Precondition>> preconditions_;
   std::vector<Operation, ArenaStlAllocator<Operation>> operations_;
   ParserContext parser_context_;
@@ -131,6 +132,7 @@ public:
   CommitRequest(CommitRequest &&other) noexcept
       : arena_(std::move(other.arena_)), request_id_(other.request_id_),
         leader_id_(other.leader_id_), read_version_(other.read_version_),
+        has_read_version_been_set_(other.has_read_version_been_set_),
         preconditions_(std::move(other.preconditions_)),
         operations_(std::move(other.operations_)),
         parser_context_(std::move(other.parser_context_)),
@@ -149,6 +151,7 @@ public:
       request_id_ = other.request_id_;
       leader_id_ = other.leader_id_;
       read_version_ = other.read_version_;
+      has_read_version_been_set_ = other.has_read_version_been_set_;
       preconditions_ = std::move(other.preconditions_);
       operations_ = std::move(other.operations_);
       parser_context_ = std::move(other.parser_context_);
@@ -195,7 +198,16 @@ public:
    * @return true if parsing is complete and successful
    */
   bool is_parse_complete() const {
-    return parser_context_.parse_complete && !parser_context_.parse_error;
+    return parser_context_.parse_complete && !parser_context_.parse_error &&
+           is_valid();
+  }
+
+  /**
+   * @brief Validate that all required fields are present.
+   * @return true if all required fields are present
+   */
+  bool is_valid() const {
+    return !leader_id_.empty() && has_read_version_been_set_;
   }
 
   /**
@@ -256,6 +268,7 @@ public:
     request_id_.reset();
     leader_id_ = {};
     read_version_ = 0;
+    has_read_version_been_set_ = false;
     preconditions_.clear();
     operations_.clear();
 
diff --git a/tests/test_commit_request.cpp b/tests/test_commit_request.cpp
index d3987b2..df5fd6a 100644
--- a/tests/test_commit_request.cpp
+++ b/tests/test_commit_request.cpp
@@ -77,6 +77,59 @@ TEST_CASE("CommitRequest basic parsing") {
 
     REQUIRE_FALSE(request.parse_json(json));
   }
+
+  SUBCASE("Missing required leader_id") {
+    std::string json = R"({
+            "request_id": "test123",
+            "read_version": 12345
+        })";
+
+    REQUIRE_FALSE(request.parse_json(json));
+    REQUIRE_FALSE(request.is_parse_complete());
+  }
+
+  SUBCASE("Missing required read_version") {
+    std::string json = R"({
+            "request_id": "test123",
+            "leader_id": "leader456"
+        })";
+
+    REQUIRE_FALSE(request.parse_json(json));
+    REQUIRE_FALSE(request.is_parse_complete());
+  }
+
+  SUBCASE("Empty leader_id") {
+    std::string json = R"({
+            "request_id": "test123",
+            "leader_id": "",
+            "read_version": 12345
+        })";
+
+    REQUIRE_FALSE(request.parse_json(json));
+    REQUIRE_FALSE(request.is_parse_complete());
+  }
+
+  SUBCASE("Missing both leader_id and read_version") {
+    std::string json = R"({
+            "request_id": "test123"
+        })";
+
+    REQUIRE_FALSE(request.parse_json(json));
+    REQUIRE_FALSE(request.is_parse_complete());
+  }
+
+  SUBCASE("request_id is optional") {
+    std::string json = R"({
+            "leader_id": "leader456",
+            "read_version": 12345
+        })";
+
+    REQUIRE(request.parse_json(json));
+    REQUIRE(request.is_parse_complete());
+    REQUIRE_FALSE(request.request_id().has_value());
+    REQUIRE(request.leader_id() == "leader456");
+    REQUIRE(request.read_version() == 12345);
+  }
 }
 
 TEST_CASE("CommitRequest memory management") {
@@ -254,4 +307,38 @@ TEST_CASE("CommitRequest streaming parsing") {
     REQUIRE(request.leader_id() == "test");
     REQUIRE(request.read_version() == 123);
   }
+
+  SUBCASE("Streaming parse missing required leader_id") {
+    std::string json = R"({"request_id": "test", "read_version": 123})";
+
+    REQUIRE(request.begin_streaming_parse());
+
+    std::string mutable_json = json;
+    CommitRequest::ParseStatus status =
+        request.parse_chunk(mutable_json.data(), mutable_json.size());
+
+    if (status == CommitRequest::ParseStatus::Incomplete) {
+      status = request.finish_streaming_parse();
+    }
+
+    REQUIRE(status == CommitRequest::ParseStatus::Complete);
+    REQUIRE_FALSE(request.is_parse_complete()); // Should fail validation
+  }
+
+  SUBCASE("Streaming parse missing required read_version") {
+    std::string json = R"({"request_id": "test", "leader_id": "leader123"})";
+
+    REQUIRE(request.begin_streaming_parse());
+
+    std::string mutable_json = json;
+    CommitRequest::ParseStatus status =
+        request.parse_chunk(mutable_json.data(), mutable_json.size());
+
+    if (status == CommitRequest::ParseStatus::Incomplete) {
+      status = request.finish_streaming_parse();
+    }
+
+    REQUIRE(status == CommitRequest::ParseStatus::Complete);
+    REQUIRE_FALSE(request.is_parse_complete()); // Should fail validation
+  }
 }
\ No newline at end of file