Skillget

rbx-studio-mcp

mcp
Guvenlik Denetimi
Basarisiz
Health Uyari
  • License — License: MIT
  • Description — Repository has a description
  • Active repo — Last push 0 days ago
  • Low visibility — Only 5 GitHub stars
Code Basarisiz
  • spawnSync — Synchronous process spawning in scripts/check-plugin.mjs
  • process.env — Environment variable access in scripts/install-plugin.mjs
  • network request — Outbound network request in scripts/latency.mjs
  • spawnSync — Synchronous process spawning in scripts/locate-luau.mjs
  • process.env — Environment variable access in scripts/locate-luau.mjs
Permissions Gecti
  • Permissions — No dangerous permissions requested

Bu listing icin henuz AI raporu yok.

SUMMARY

Free, open-source MCP server for Roblox Studio. Push-based SSE transport, editor-safe script edits, 29 token-lean tools.

README.md

Roblox Studio MCP

Let an AI agent drive Roblox Studio: read your place, edit scripts, run playtests, take screenshots. 29 tools. MIT.

The Studio MCP panel: a live activity band, a call log with latencies, and the theme drawer open

Install

1. The Studio plugin

npx -y @el4cteo/rbx-studio-mcp --install-plugin

Or download StudioMCP.rbxmx from Releases into your Studio plugins folder.

2. The server, in whichever client you use:

Claude Code 
claude mcp add roblox-studio -- npx -y @el4cteo/rbx-studio-mcp
Codex CLI 
codex mcp add roblox-studio -- npx -y @el4cteo/rbx-studio-mcp
Cursor — ~/.cursor/mcp.json or .cursor/mcp.json 
{
  "mcpServers": {
    "roblox-studio": {
      "command": "npx",
      "args": ["-y", "@el4cteo/rbx-studio-mcp"]
    }
  }
}
Claude Desktop — claude_desktop_config.json 
{
  "mcpServers": {
    "roblox-studio": {
      "command": "npx",
      "args": ["-y", "@el4cteo/rbx-studio-mcp"]
    }
  }
}
Gemini CLI — ~/.gemini/settings.json 
{
  "mcpServers": {
    "roblox-studio": {
      "command": "npx",
      "args": ["-y", "@el4cteo/rbx-studio-mcp"]
    }
  }
}
Windsurf — ~/.codeium/windsurf/mcp_config.json 
{
  "mcpServers": {
    "roblox-studio": {
      "command": "npx",
      "args": ["-y", "@el4cteo/rbx-studio-mcp"]
    }
  }
}
VS Code / Copilot — .vscode/mcp.json 
{
  "servers": {
    "roblox-studio": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@el4cteo/rbx-studio-mcp"]
    }
  }
}
opencode — opencode.json 
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "roblox-studio": {
      "type": "local",
      "command": ["npx", "-y", "@el4cteo/rbx-studio-mcp"],
      "enabled": true
    }
  }
}

3. Open Studio and accept the 127.0.0.1 prompt — the plugin connects automatically. Verify with studio_status.

4. debug additionally needs Debugger Luau API in File → Beta Features, plus a Studio restart. Nothing else requires it.

The Debugger Luau API beta feature toggle in Studio

Port defaults to 44755 — change with --port or ROBLOX_STUDIO_MCP_PORT, and match it in the plugin widget. Loopback only.

Multiple agents

Register the server in as many clients as you like. No extra configuration.

Each agent keeps its own target, so two agents can work on two open places. Subagents share their parent's target — give them an explicit studioId per call.

Tools
Session studio_status list_studios set_active_studio
Discover tree inspect find api
Scripts script_read script_edit script_grep script_create
Instances create modify delete move
World geometry assets collision undo
Run & debug playtest execute_luau character input console debug performance
Look screenshot viewport device

Gotchas: during a playtest two sessions connect — pass studioId explicitly and use the edit session for anything that must persist. device emulation persists until device op="stop".

The console panel

Every call is logged with its latency, above a trace of the last forty.

Hover the tab on the right edge for eight themes — Lattice, Observatory, Orbit, Void, Nebula, Aurora, Phosphor, Blueprint. Each redraws the activity band, not just its colours. Your pick is remembered.

Batching

Every write tool takes an array — ten script edits is one call.

tool takes cap
create instances, each nesting children to any depth 100
modify entries, each with an unlimited list of paths 100 entries
delete paths 200
move moves 200
script_edit edits, across any number of scripts 50
script_create scripts 50
inspect paths 50
input input steps, delivered in order 40

modify caps entries, not targets — one entry can anchor five hundred parts.

Each batch is one Ctrl+Z, and all-or-nothing: a failed match leaves the place untouched.

Why this one

  • Push, not poll. 50 sequential round trips average 13.6 ms, against 25.8 ms polling — reproduce with node scripts/latency.mjs --count 50 --compare.
  • Safe script edits. Writes go through ScriptEditorService:UpdateSourceAsync, so your unsaved editor buffer survives.
  • One Ctrl+Z per call. Every batch is a single undo recording.
  • Property names are checked against the running engine's API dump, so a typo comes back as Anchorred → Anchored instead of a runtime error.
  • ~16k tokens of schema, cursor-paged and capped, with detail: concise | standard | full.

Not built here: terrain, AI mesh and material generation.

Security

Loopback only. Requires a header a browser cannot set cross-origin, which closes the DNS-rebinding hole. Your experience's "Allow HTTP Requests" setting is untouched.

Development

npm install
npm run build          # TypeScript -> dist/
npm run build:plugin   # plugin/src -> build/StudioMCP.rbxmx
npm run install:plugin # build + copy into the Studio plugins folder
npm test               # plugin (Luau) + bridge (Node) tests

Needs luau, luau-compile and luau-analyze from the Luau releases on PATH or in tools/.

evals/ holds ten questions answerable only by driving a real Studio session — see evals/README.md.

Licence

MIT.

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