s&box MCP Server & AI Skill
18 MCP tools for the s&box editor, and 17 reference files that stop an AI agent writing Unity code into your Source 2 project.
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About This Package
Lead: the .sbproj field you changed that did nothing, the .config that did nothing, the clean build still running yesterday's code. Then two labelled halves.
The MCP Server. Eighteen tools, grouped ask-the-live-engine (8), ask-the-editor (6), change-something (4). The six ways an edit disappears table. 127.0.0.1:7269, loopback, and the claude mcp add --transport http sbox line. The one that reads as a bug and is not: the tools never appear in a client's tool list, reach them via search_tools and call_tool.
The AI Agent Skill. 17 reference files, the router explanation, the Unity translation table, 14_VERIFICATION as the file that matters most, and the four prompt patterns. Say plainly that the skill is not inside the package, because a library ships code rather than documentation, and give the clone and /plugin install routes.
visit
https://github.com/fobiat/sbox-skill for more information.Close on status (engine 26.08.05, both nullable configurations, 14 of 18 tools called live), MIT, and the three links: the repo, fobiat.dev/blog/p/sbox-skill, fobiat.dev.
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Package ID:
fobiat.sbox_mcp_server
Created:
2026-08-15 15:51 UTC
Updated:
2026-08-15 16:57 UTC
Type:
library
Public:
Yes
Version:
342130
files:
7
Size:
0.1 MB
Engine Version:
28
Asset Version ID:
342130
Version Created:
2026-08-15 16:57 UTC
Hash:
1786813021
Manifest: Open manifest
Compiler:
1
Project Template:
Resources:
Code Package References:
342130
Aug 15, 2026
0.5.0 - The MCP Server is on sbox.game
342117
Aug 15, 2026
Release