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BUDDY - A Tamagotchi Inside Your Terminal

I am not making this up.

Claude Code has a full Tamagotchi-style companion pet system called "Buddy." A deterministic gacha system with species rarity, shiny variants, procedurally generated stats, and a soul description written by Claude on first hatch like OpenClaw.

The entire thing lives in buddy/ and is gated behind the BUDDY compile-time feature flag. The Gacha System

Your buddy's species is determined by a Mulberry32 PRNG, a fast 32-bit pseudo-random number generator seeded from your userId hash with the salt

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lemmy.sdf.org

They say this was done with Codex and OpenCode.

I admit I'm behind the time with AI coding agents. Is it actually possible to do that effectively in such a short time? Or is this going to be riddled with sloppy bugs?

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I would say recompiling code with discrete units tests is probably a good use case. It allows for a tight feedback loop with the agent.

You will probably get the mean deliverable. Not industrial unless you think to bake in the requirements.

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Yes, I posted that one and also another one in my original description if you're interested; it has a full breakdown of the original source code

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