diff --git a/src/planner.cpp b/src/planner.cpp
index 4fe0f8c..e09ab87 100644
--- a/src/planner.cpp
+++ b/src/planner.cpp
@@ -1,5 +1,6 @@
 #include "planner.hpp"
 #include "action.hpp"
+#include "character_actor.hpp"
 #include "global_world_state.hpp"
 #include "utils/godot_macros.h"
 #include <cstdlib>
@@ -18,6 +19,7 @@ typedef HashSet<PlannerNode, PlannerNodeHasher> NodeSet;
 void Goal::_bind_methods() {
 #define CLASSNAME Goal
     GDPROPERTY(goal_state, Variant::DICTIONARY);
+    GDPROPERTY(prerequisites, Variant::DICTIONARY);
 }
 
 void Goal::set_goal_state(Dictionary dict) {
@@ -28,6 +30,14 @@ Dictionary Goal::get_goal_state() const {
     return Action::property_map_to_dict(this->goal_state);
 }
 
+void Goal::set_prerequisites(Dictionary dict) {
+    Action::dict_to_property_map(dict, this->prerequisites);
+}
+
+Dictionary Goal::get_prerequisites() const {
+    return Action::property_map_to_dict(this->prerequisites);
+}
+
 #undef CLASSNAME // !Goal
 
 PlannerNode PlannerNode::goal_node(WorldState const &goal)  {
diff --git a/src/planner.hpp b/src/planner.hpp
index b197812..ea3f4f7 100644
--- a/src/planner.hpp
+++ b/src/planner.hpp
@@ -20,8 +20,11 @@ class Goal : public Resource {
 
     void set_goal_state(Dictionary dict);
     Dictionary get_goal_state() const;
+    void set_prerequisites(Dictionary dict);
+    Dictionary get_prerequisites() const;
 public:
     WorldState goal_state{};
+    WorldState prerequisites{};
 };
 
 struct PlannerNode {