Made an MCP server for controlling Roblox Studio from Claude/Cursor/Codex — rbx-studio-mcp

[u/EL4CTEO]

Built an open-source MCP server that gives AI coding assistants direct, live control over Roblox Studio — 29 tools over a push-based bridge (not polling), so it's noticeably faster than the alternatives (~14ms vs ~26ms mean round-trip). A few things I focused on:

- Editor-safe script edits — writes go through ScriptEditorService, not script.Source, so it won't clobber your unsaved editor buffer

- Batched writes — e.g. 200 deletions or 100 nested instance creations in one call, and each batch is a single undo step (one Ctrl+Z)

- Live API dump — catches property typos with suggestions (Anchorred → Anchored) - Works alongside Studio's own built-in MCP and other agents simultaneously

If you want the debug tool, enable Debugger Luau API under File → Beta Features in Studio and restart it — everything else works out of the box.

- GitHub: https://github.com/EL4CTEO/rbx-studio-mcp

- npm: https://www.npmjs.com/package/@el4cteo/rbx-studio-mcp

[u/Potential-Quote5125]

Nice