Mc Rp Assistant MCP Server

mc-rp-assistant-mcp

MCP server for Minecraft resource pack analysis, validation, and management. Reads pack.mcmeta, validates structure, lists assets, compares packs, and queries Modrinth.

Tools

Exported Functions

• readPackMetaExport(packPath) — Read pack.mcmeta
• validateRpStructureExport(packPath, mcVersion?) — Validate pack structure
• listRpAssetsExport(packPath, limit?) — List asset files
• compareRpacksExport(oldPackPath, newPackPath) — Compare two packs
• searchRpOnModrinthExport(query, limit?) — Search Modrinth
• getRpInfoExport(slugOrId) — Get pack info from Modrinth
• validateTexturesExport(packPath) — Validate textures
• analyzeLangFilesExport(packPath) — Analyze language files
• compareRpacksDiffExport(oldPackPath, newPackPath) — Detailed pack comparison

MCP Client Configuration

Add to your MCP client config (e.g., Trae settings.json or MCP CLI config):

{
  "mcpServers": {
    "mc-rp-assistant": {
      "command": "node",
      "args": ["${workspaceFolder}/dist/index.js"]
    }
  }
}

Path note: ${workspaceFolder} resolves to the project root in Trae/VS Code. If using another editor, replace with the absolute path, e.g. ["C:/Users/xxx/Desktop/mc-rp-assistant-mcp/dist/index.js"].

Configuration

本工具零配置即可用（内置默认值，任何环境开箱即用）。以下项目可通过环境变量或项目根目录 .env 文件覆盖（复制 .env.example 为 .env）：

优先级：环境变量 > .env 文件 > rp-config.json > 内置默认值。改动后重启 MCP server 生效。

扩展默认配置：编辑 src/rp-config.json（构建后为 dist/rp-config.json）可调整搜索上限、pack.png 大小阈值与 MC 版本 → pack_format 映射，无需改代码。

Requirements

• Node.js 18+
• @modelcontextprotocol/sdk, zod, adm-zip
• adm-zip is required for .zip / .mcpkg resource pack support — included as a dependency

Development

npm run build   # Compile TypeScript
npm run test:unit  # Run unit tests
npm test        # Run all tests

Testing

npm run build
npm test

All unit tests are offline except searchRpOnModrinth and getRpInfo which gracefully return empty results when no network is available.

Platform Compatibility

All tools use cross-platform Node.js fs and path APIs. .zip support requires adm-zip. Network-dependent tools (search_rp_on_modrinth, get_rp_info) work on all platforms when online; they return empty results gracefully when offline.

Requirements

• Node.js 18+
• @modelcontextprotocol/sdk, zod, adm-zip

License

MIT