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Locus

Maker: r1n7aro License: GPL-3.0-or-later Stars: 710 First released: 2026-04-22 Language: Rust, TypeScript, C#

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About

Unity's editor APIs cap what in-editor or MCP-based automation can do, so Locus takes the unusual step of running as an independent desktop process that drives Unity from outside. The agent writes and edits C# with Rider-grade Roslyn analysis running in its own process, sees live compiler errors, and verifies changes through hot reload that never forces a domain reload, so Play Mode state survives edits. A proprietary intermediate representation lets it progressively read large scenes and assets rather than loading them whole, Rust-based parallel scans keep asset-database queries fast, and semantic diffs handle Unity's YAML assets. An L0/L1/L2 knowledge system maintains project memory across sessions, and a /view command has the agent build Vue.js editor UIs. Game developers on Windows (Unity 2021+) are the audience, with GPL-3.0 source and installer releases.