TypeSafe Plays Minecraft
A Minecraft bot gathers materials and builds a supplied Canadian flag blueprint.
Added to Jevfast
How it uses Jev
Jev receives structured observations of the Minecraft world and chooses one bounded action, such as a movement pulse, turn, aim, mine, place, inspect, or wait. Mineflayer executes that primitive; ordinary code prepares candidates and enforces collision and target checks.
What Jev decides
Choose a lumber-run actionExample answers · not a recorded Jev response · Source ↗
Question 1 · movement
YOUR APP
INSTRUCTION
Choose the next Minecraft action to collect 10 new logs and return home. Use task progress, observed candidates, and recent outcomes. Return home once task.collected >= task.target. Otherwise collect reachable dropped logs, or choose a reachable log to harvest; explore if neither exists. A missing or null candidate makes that action unavailable. Avoid repeating failed actions.
STATE
Tested requestFor example with state {goal: explore}; its high-level request offers the fixed lumber actions for harvesting the nearest or alternate log, collecting a dropped log, exploring, returning home, or waiting.
JEV · CHOICE
- harvest_nearest
- harvest_alternative
- pickup
- explore
- return_home
- wait
App workflow
- Observe world state
Connect to the configured Minecraft world and observe nearby entities, blocks, inventory, and task progress.
- Prepare eligible actions
Build a bounded action menu from eligible targets and the current scenario.
- Choose and execute one action
Ask Jev for one action and execute the selected primitive with Mineflayer.
- Repeat toward completion
Refresh state and repeat until the blueprint is complete or the run stops.
Why it is interesting
The direct controller makes Jev’s boundary visible: it selects from observed eligible actions while the application validates and executes each action separately.