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ArjinFerman  Tinfoil Gigachad  3d ago (text post)   221 thread views

Tinker Tuesday for July 21st, 2026

This thread is for anyone working on personal projects to share their progress, and hold themselves somewhat accountable to a group of peers.

Post your project, your progress from last week, and what you hope to accomplish this week.

If you want to be pinged with a reminder asking about your project, let me know, and I'll harass you each week until you cancel the service.

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So more work on my ongoing quest for AI building in Minecraft.

Exposing primitives via MCP resulted in too many tool calls. Claude could build some neat stuff but it was very slow. Also a bit prone to making mistakes.

I thought I could fix things by adding in a service to use prebuilt schematics. I found an archive of schematic files, generated isometric images from them, had a local gemma3 classify them, and set up an elastic search service so the MCP could search for models by tags.

It worked pretty well for things like "generate a medieval village" but the gemma3 tags weren't great at providing useful info and I'm probably going to have issues if I try to redistribute those schematic files.

Also it's fundamentally limited, I'm going for structures I've never dreamt of.

So I figured that LLMs are good at writing code.

So I'm currently working on using Starlark scripts to generate nbt files. It's basically a flexible component system. Local only, I haven't wired it into the MCP yet.

Claude and Codex are pretty good at looking at an existing schematic and generating a script for a similar building. Results are a bit more mixed when given only simple instructions.

To really get it working I'll need to add in a lot of validations about wether you can path from the entrance to a room / floor. Then for MCP integration I'll need to have a whole system about returning errors and explaining problems.

I'll need to drop some kind of major info dump on the llm that explains how to use it all.

One day a kid will be able to type "generate an epic murder dungeon and teleport my friends there" and my goal will be complete.

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