From the workshop
A little curiosity.
A lot of block dust.
The rest of this site says what Cubelings does. This is where we show the working: the tests, the measurements and the mistakes that shaped how Cog plays. Written for anyone who would rather check than take our word for it.
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4 min read Latest note
There is no right-click event in a datapack
Making a gun fire in vanilla Minecraft with no mods: the used-item statistic, why a crossbow will never work, and aiming a projectile with no vector maths at all.
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4 min read
A ladder that is not a ladder
Cog had 286 blocks to build with and not one of them was functional: no ladder, no door, no torch. So they drew a ladder out of brown wool. It photographs perfectly and nobody can climb it.
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4 min read
We were wrong about modded worlds
This site said our AI could not join a heavily modded server. We had not tried it. On a 49-mod Cobblemon pack it joined, walked, learned 304 blocks vanilla has never heard of, and mined eight of eight.
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6 min read
A datapack that installs perfectly and does nothing
One selector had two bracket groups in it. The pack loaded, enabled and reported success, then answered "Unknown function" for its own tick, silently and forever. Also: why asking a model to rewrite a document loses a third of it.
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4 min read
The six redstone wire rules nobody reasons their way to
Build order is load-bearing, a repeater faces its input, and a closed loop of repeaters latches itself on. Six rules, each measured against a real server rather than derived on paper.
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2 min read
Why a survival benchmark needs a fixture world
The first trials scored worse every run, and it looked like the agent was getting less reliable. It was chopping down the forest it was being tested in: oak logs in range fell from 110 to 50 over eight runs.
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2 min read
Digging is not mining
Breaking a block drops an item on the ground. It does not put anything in an inventory. Dig from three blocks back and a technically perfect run scores zero.
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