diff --git a/CMakeLists.txt b/CMakeLists.txt
index e0806e8..a0aeff0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.25)
-project(blt-gp VERSION 0.0.123)
+project(blt-gp VERSION 0.0.124)
 
 include(CTest)
 
diff --git a/include/blt/gp/operations.h b/include/blt/gp/operations.h
index b80d9fe..a7b6828 100644
--- a/include/blt/gp/operations.h
+++ b/include/blt/gp/operations.h
@@ -177,6 +177,11 @@ namespace blt::gp
                 return name;
             }
             
+            inline constexpr const auto& get_function() const
+            {
+                return func;
+            }
+            
             operator_id id = -1;
         private:
             function_t func;
diff --git a/include/blt/gp/transformers.h b/include/blt/gp/transformers.h
index e055237..da011a3 100644
--- a/include/blt/gp/transformers.h
+++ b/include/blt/gp/transformers.h
@@ -32,8 +32,6 @@ namespace blt::gp
         using op_iter = std::vector<blt::gp::op_container_t>::iterator;
     }
     
-    blt::ptrdiff_t find_endpoint(blt::gp::gp_program& program, const std::vector<blt::gp::op_container_t>& container, blt::ptrdiff_t start);
-    
     class crossover_t
     {
         public:
@@ -108,7 +106,8 @@ namespace blt::gp
             
             virtual tree_t apply(gp_program& program, const tree_t& p); // NOLINT
             
-            void mutate_point(gp_program& program, tree_t& c, blt::size_t node);
+            // returns the point after the mutation
+            blt::size_t mutate_point(gp_program& program, tree_t& c, blt::size_t node);
             
             virtual ~mutation_t() = default;
         
diff --git a/include/blt/gp/tree.h b/include/blt/gp/tree.h
index afe145d..5838fe1 100644
--- a/include/blt/gp/tree.h
+++ b/include/blt/gp/tree.h
@@ -112,6 +112,8 @@ namespace blt::gp
             }
             
             void print(gp_program& program, std::ostream& output, bool print_literals = true, bool pretty_indent = false, bool include_types = false) const;
+            
+            blt::ptrdiff_t find_endpoint(blt::gp::gp_program& program, blt::ptrdiff_t start);
         
         private:
             std::vector<op_container_t> operations;
diff --git a/src/transformers.cpp b/src/transformers.cpp
index 4379ece..e30e034 100644
--- a/src/transformers.cpp
+++ b/src/transformers.cpp
@@ -71,10 +71,10 @@ namespace blt::gp
             return blt::unexpected(point.error());
         
         auto crossover_point_begin_itr = c1_ops.begin() + point->p1_crossover_point;
-        auto crossover_point_end_itr = c1_ops.begin() + find_endpoint(program, c1_ops, point->p1_crossover_point);
+        auto crossover_point_end_itr = c1_ops.begin() + c1.find_endpoint(program, point->p1_crossover_point);
         
         auto found_point_begin_itr = c2_ops.begin() + point->p2_crossover_point;
-        auto found_point_end_itr = c2_ops.begin() + find_endpoint(program, c2_ops, point->p2_crossover_point);
+        auto found_point_end_itr = c2_ops.begin() + c2.find_endpoint(program, point->p2_crossover_point);
         
         stack_allocator& c1_stack = c1.get_values();
         stack_allocator& c2_stack = c2.get_values();
@@ -215,13 +215,13 @@ namespace blt::gp
         return c;
     }
     
-    void mutation_t::mutate_point(gp_program& program, tree_t& c, blt::size_t node)
+    blt::size_t mutation_t::mutate_point(gp_program& program, tree_t& c, blt::size_t node)
     {
         auto& ops_r = c.get_operations();
         auto& vals_r = c.get_values();
         
         auto begin_point = static_cast<blt::ptrdiff_t>(node);
-        auto end_point = find_endpoint(program, ops_r, begin_point);
+        auto end_point = c.find_endpoint(program, begin_point);
         auto begin_operator_id = ops_r[begin_point].id;
         const auto& type_info = program.get_operator_info(begin_operator_id);
         
@@ -293,23 +293,6 @@ namespace blt::gp
             throw std::exception();
         }
 #endif
-    }
-    
-    blt::ptrdiff_t find_endpoint(blt::gp::gp_program& program, const std::vector<blt::gp::op_container_t>& container, blt::ptrdiff_t index)
-    {
-        blt::i64 children_left = 0;
-        
-        do
-        {
-            const auto& type = program.get_operator_info(container[index].id);
-            // this is a child to someone
-            if (children_left != 0)
-                children_left--;
-            if (type.argc.argc > 0)
-                children_left += type.argc.argc;
-            index++;
-        } while (children_left > 0);
-        
-        return index;
+        return begin_point + new_ops_r.size();
     }
 }
\ No newline at end of file
diff --git a/src/tree.cpp b/src/tree.cpp
index 5bb1eff..28270c6 100644
--- a/src/tree.cpp
+++ b/src/tree.cpp
@@ -201,4 +201,22 @@ namespace blt::gp
         
         return depth;
     }
+    
+    blt::ptrdiff_t tree_t::find_endpoint(gp_program& program, blt::ptrdiff_t index)
+    {
+        blt::i64 children_left = 0;
+        
+        do
+        {
+            const auto& type = program.get_operator_info(operations[index].id);
+            // this is a child to someone
+            if (children_left != 0)
+                children_left--;
+            if (type.argc.argc > 0)
+                children_left += type.argc.argc;
+            index++;
+        } while (children_left > 0);
+        
+        return index;
+    }
 }
\ No newline at end of file