1) You click the "See inside" button. 2) Next you can play with the agent by making your own code in this project to make the agent work.
In Education Edition and Bedrock Edition worlds connected to a WebSocket server, the agent is a mob that helps players learn coding, by getting players to code the actions on it. The agent can be programmed to execute several tasks, like planting and harvesting, mining, chopping trees, and building. More info: https://minecraft.fandom.com/wiki/Agent