message: increase max history length
diff: @@ -28,7 +28,7 @@ Agent::Agent(const State& initial_state,
  dynamic_model_(dynamic_model_ptr),
  execution_model_(execution_model),
  history_(),
  - max_history_length_(10),
  + max_history_length_(30),
  first_valid_timestamp_(0.0),
  goal_definition_(goal_definition) {
  if (params) {
  