Comment by DefineOutside

Yes, the model is given an impossible task that a player shouldn't be able to do, and if it ever can deliver the impossible task, then something in my logic is wrong.

Flagship OpenAI/Anthropic models refuse this task due to "Cybersecurity" so I have no idea how good flagship models do. It's unfortunate as IMO minecraft is a sandbox

Java clients (pc version) use the actual game's files modified to not open a window. Minecraft is source available, anyone can load it into an IDE, modify it to double jump height, and run it in minutes without an unmodified server caring. Bedrock clients (the version for phones) just figure it out based on packets and how the anticheat corrects them to what the movement should be.