Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add nonlooped/roblox-suite --skill roblox-mcpgit clone --depth 1 https://github.com/nonlooped/roblox-suiteWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/nonlooped/roblox-suite/roblox-mcp)<a href="https://agentmods.dev/skills/nonlooped/roblox-suite/roblox-mcp"><img src="https://agentmods.dev/badge/skills/nonlooped/roblox-suite/roblox-mcp/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/nonlooped/roblox-suite/roblox-mcp"><img src="https://agentmods.dev/badge/skills/nonlooped/roblox-suite/roblox-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00107 | $0.01876 |
| Opus 5 | $0.00053 | $0.00938 |
| Sonnet 5 | $0.00021 | $0.00375 |
| Haiku 4.5 | $0.00011 | $0.00188 |
Grade A, and why
roblox-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.
roblox-mcp
Official sources (always check these for the latest):
- https://create.roblox.com/docs/en-us/studio/mcp
- https://create.roblox.com/docs/en-us/ai/build
- https://create.roblox.com/docs/en-us/scripting/sync
- https://modelcontextprotocol.io/docs/getting-started/intro
This skill is about the official Roblox Studio MCP server, not a third-party wrapper. Once connected, your AI client can drive an open Roblox Studio session: read and edit scripts, search the game tree, run Luau, insert assets, start playtests, simulate input, and capture the viewport.
When to use this skill
Activate when the user is:
- Setting up an AI coding tool (Cursor, VS Code + Claude Code, Claude Desktop, Codex CLI, etc.) to talk to Roblox Studio.
- Asking about the Roblox Studio MCP server, MCP tools, or the coding-harness workflow.
- Combining Script Sync with agent-driven Studio control.
- Troubleshooting why MCP tools are not showing up or not executing.
- Writing prompts or workflows that let an agent safely modify a place.
Cross-reference:
- roblox/SKILL.md for general Roblox architecture and specialized development skills.
- roblox-core/SKILL.md for services, script locations, and the data model.
What the Studio MCP server is
Roblox Studio implements a Model Context Protocol (MCP) server using stdio transport. The server runs as a local process on your machine and proxies requests from a supported AI client into the active Studio session. It is the bridge between your editor's agent and Studio: Script Sync handles disk-to-Studio file syncing, while MCP handles everything else (Explorer selection, instance inspection, script editing, Luau execution, play mode, input simulation, and asset insertion).
Prerequisites
- Latest Roblox Studio — update through the launcher or download from the Creator Hub.
- An MCP-capable AI client — Cursor, VS Code with Claude Code, Claude Desktop, Codex CLI, Gemini CLI, Antigravity, or any client that supports
stdiotransport. - A Roblox account signed into Studio.
- Git (recommended) for the file-based workflow.
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 140 lines · 107 tokens per session scan A 686b2132c26c
roblox-mcp is a skill published in the GitHub repository nonlooped/roblox-suite (14 stars, last pushed 7d ago), licensed MIT. It adds 107 tokens to every session and 1,876 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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