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Enables coding agents to run diff-scoped mutation testing on Python code, returning mutation scores and surviving mutants with actionable hints so they can improve tests.

An MCP toolkit that gives coding agents bounded, provenance-backed evidence about Minecraft projects, including declared project facts, version-aware mapping and source references, and classified build or runtime diagnostics. It also exposes opt-in tools for permitted Gradle tasks, bounded client launches, and configured external providers, with modular skills for Java, client, server, Mixin debugging, and anti-cheat compatibility work.