geuneda-mcp-unity: Instructions file for Claude Code

CLAUDE.md

geuneda-mcp-unity CLAUDE.md is an instructions file for Claude Code from geuneda/geuneda-mcp-unity. It costs 1,487 tokens per session, scanned A, original, MIT.

A repository instruction file for an AI coding assistant working on a Unity project with a Node.js server. It explains the project structure, development commands, and how the Unity and server parts connect.

In plain words
What is it for?
Use it when asking an AI assistant to develop, build, test, or debug the MCP Unity project and its Node.js server.
Why use it?
It gives the assistant the project-specific context needed to make changes and run checks correctly. This reduces guesswork about which commands, folders, and tools to use.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions Codex.

This is geuneda/geuneda-mcp-unity's own configuration. It tells Claude Code how to work on geuneda-mcp-unity itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything geuneda-mcp-unity configures →

Reuse

Borrowing it

Nothing to install: this file belongs to geuneda/geuneda-mcp-unity. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/geuneda/geuneda-mcp-unity/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/geuneda/geuneda-mcp-unity

Made for: Claude Code.

Wrote this? Show the measurements

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Per session 1,487 This file is loaded in full into every session.
When invoked 1,487 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01487 $0.01487
Opus 5 $0.00744 $0.00744
Sonnet 5 $0.00297 $0.00297
Haiku 4.5 $0.00149 $0.00149

Measured 9d ago against content hash 8421e086c3fe, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

geuneda-mcp-unity CLAUDE.md 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 9d 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.

CLAUDE.md · 133 lines

How it starts

The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

이 파일은 이 저장소의 코드를 작업할 때 Claude Code (claude.ai/code)에게 지침을 제공합니다.

프로젝트 개요

MCP Unity는 MCP 지원 클라이언트(Cursor, Windsurf, Claude Code, Codex CLI, GitHub Copilot)에 2계층 아키텍처를 통해 Unity Editor 기능을 노출합니다:

  • Unity Editor (C#): 도구/리소스를 실행하는 Unity 내부 WebSocket 서버
  • Node.js 서버 (TypeScript): WebSocket을 통해 AI 클라이언트와 Unity를 연결하는 MCP stdio 서버

데이터 흐름: MCP 클라이언트 ⇄ (stdio) ⇄ Node 서버 (Server~/src/index.ts) ⇄ (WebSocket) ⇄ Unity Editor (Editor/UnityBridge/McpUnityServer.cs)

빌드 및 개발 명령어

Node.js 서버 (Server~/)

npm install          # 의존성 설치
npm run build        # TypeScript를 build/로 컴파일
npm run watch        # 감시 모드 컴파일
npm start            # 서버 실행 (node build/index.js)
npm test             # Jest 테스트 실행 (--experimental-vm-modules 사용)
npm run test:watch   # 감시 모드 테스트
npm run inspector    # 디버깅을 위한 MCP Inspector 실행

Unity 측

  • Unity Editor를 통한 빌드/테스트
  • Tools > MCP Unity > Server Window에서 설정
  • Window > General > Test Runner에서 EditMode 테스트

주요 디렉토리

Editor/                       # Unity Editor 패키지 (C#)
├── Tools/                    # MCP 도구 (McpToolBase 상속)
├── Resources/                # MCP 리소스 (McpResourceBase 상속)
├── Services/                 # TestRunnerService, ConsoleLogsService
├── UnityBridge/              # WebSocket 서버 + 메시지 라우팅
│   ├── McpUnityServer.cs     # 서버 생명주기를 관리하는 싱글톤
│   └── McpUnitySocketHandler.cs  # WebSocket 핸들러
└── Utils/                    # 로깅, 설정, 워크스페이스 헬퍼

Server~/                      # Node.js MCP 서버 (TypeScript/ESM)
├── src/index.ts              # 진입점 - 도구/리소스 등록
├── src/tools/                # MCP 도구 정의 (zod + 핸들러)
├── src/resources/            # MCP 리소스 정의
└── src/unity/mcpUnity.ts     # Unity에 연결하는 WebSocket 클라이언트

주요 불변 사항

  • WebSocket 엔드포인트: ws://localhost:8090/McpUnity (설정 가능)
  • 설정 파일: ProjectSettings/McpUnitySettings.json
  • 도구/리소스 이름은 Node와 Unity 간 정확히 일치해야 합니다 (lower_snake_case 사용)
  • 실행 스레드: 모든 도구 실행은 EditorCoroutineUtility를 통해 Unity 메인 스레드에서 실행

새 도구 추가

Read the full file on GitHub · 133 lines

Changes

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.

  1. 9d ago First seen · 133 lines · 1,487 tokens per session scan A 8421e086c3fe

Subscribe to this mod's changes

geuneda-mcp-unity CLAUDE.md is an instructions file published in the GitHub repository geuneda/geuneda-mcp-unity (1 stars, last pushed 6mo ago), licensed MIT. It adds 1,487 tokens to every session, about $0.0074 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 2026-08-31.

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