Show HN: LLM-assisted reconstruction of partially decompiled Minecraft 26.1.2
demcstify is a research project that uses LLM agents to reconstruct decompiled Minecraft 26.1.2 code into a fully buildable and bytecode-equivalent form without distributing any copyrighted material. The process runs locally, with users providing the original game JAR and retaining all outputs on their own machines. The project emphasizes legal compliance, using a deterministic bytecode oracle to validate reconstructions while maintaining strict separation between roles in the repair workflow.
- ▪demcstify does not host or distribute any Minecraft source code, assets, or binaries.
- ▪Users must supply their own legitimate copy of Minecraft 26.1.2 JAR to use the tool.
- ▪Reconstructed source code is validated against a bytecode oracle to ensure equivalence with the original classes.
- ▪The system uses a multi-agent LLM approach coordinated via a relational database for state tracking.
- ▪All build outputs and repaired sources remain local to the user's machine and are not shared.
Opening excerpt (first ~120 words) tap to expand
demcstify Research project: LLM-assisted reconstruction of partially decompiled Minecraft 26.1.2 sources into fully buildable, runnable, bytecode-equivalent local client and server artifacts. demcstify is not a Minecraft source distribution. It is a reconstruction lab: a set of documents, scripts, Gradle build logic, database schema, and evaluator tools that coordinate LLM agents against a deterministic bytecode oracle. The user's machine supplies the original JAR, performs the reconstruction, and keeps all reconstructed source and build outputs local. Legal Stance — Read Before Doing Anything This repository contains no Minecraft game files and no reconstructed Minecraft source code.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.