Abstract
Acting of intelligent entities, or agents, is determined by their ability to deliberatively reason towards longer-term goals while being able to react to unexpected situations. In particular, the agent generates a plan and while the plan is being executed the agent monitors the environment and eventually reacts to avoid possibly dangerous situations.
In this paper, we present a concept of ''safe'' planning and execution framework that defines the notion of ''dangerous'' states the agent should avoid and evaluates how agent's possible actions influence ''dangerousness'' of its situation. In particular, we introduce three ''clever'' agents accommodating such a framework providing three different strategies of handling ''dangerous'' situations occurring during the plan execution.