Library System
Released
Build several packages from one codebase: list, install, remove and publish libraries from an editor menu or MCP.
Build several packages from one codebase
Library System lets you (or your AI agent) list, install, remove and publish libraries without leaving the s&box editor. Keep every system you want to share as a library inside one game project, test it there, and ship each one as its own package.
What you get
- One codebase, many packages (Libraries/): Keep every system you share as a library inside your game, test it there, ship each one alone.
- Editor window (Tools → Library System): Every library in the project with Versions, Publish and Remove, plus an Install box.
- MCP tools (libraries toolset): The same four actions for scripts and AI agents on the editor's MCP server.
- Publish in one step (library_publish): Compiles when there's code, uploads the files and publishes a new revision with your title.
How to use
- Install it. Library Manager → search Library System → Install, then restart the editor.
- Keep systems as libraries. Each system you want to share lives in Libraries/ as its own library.
- Publish. Tools → Library System → Publish, or call library_publish with the library's ident.
- Release when ready. New packages start Hidden; switch to Released on the package's sbox.game edit page.
MCP tools
- library_versions: lists published versions and the one you have installed.
- library_install: installs a library by ident (versionId 0 = newest).
- library_uninstall: removes a library and deletes its folder.
- library_publish: publishes a new version, with an optional change title.
Good to know
- Editor-only: nothing ships with your game.
- Newly installed libraries load after an editor restart.
- New packages start Hidden until you release them.
Part of the same family as our Lobby and Checkpoint System packages, all built from one game project.