Jev + Astra beats the Ender Dragon in Minecraft in 8 minutes 43 seconds! ⏱️
Cost less than $1 ($0.01 Jev, $0.96 Astra)
I open sourced the code and explain the harness setup below. This type of movement is only possible with Jev's near instant decisionmaking, and some continually learning skills from Astra.
Ronak Malde
@rronak_
Harness:
I made Jev control the player, has access to WASD, space, click, and mouse movements. Astra is the planner that sends instructions to Jev async.
Learning:
Each time the agent would fail, Astra would add skills as mjs files, that it can draw upon in different scenarios, until it could successfully speedrun. Next thing to try is to plug into Trajectory and post-train an open source model to learn this behavior.
Minecraft details
Version: 1.16.5 , seed: 8398967436125155523 , is a common speedrunning seed
Full code: github.com/rmalde/minecraft-agent
I made Jev control the player, has access to WASD, space, click, and mouse movements. Astra is the planner that sends instructions to Jev async.
Learning:
Each time the agent would fail, Astra would add skills as mjs files, that it can draw upon in different scenarios, until it could successfully speedrun. Next thing to try is to plug into Trajectory and post-train an open source model to learn this behavior.
Minecraft details
Version: 1.16.5 , seed: 8398967436125155523 , is a common speedrunning seed
Full code: github.com/rmalde/minecraft-agent
5:29 AM UTC · Sep 20, 2026 · 70.8K Views
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