h3yun-sql-troubleshooter

h3yun-sql-troubleshooter

MCP server for querying H3Yun SQL data, enabling AI to execute read-only SQL queries and troubleshoot H3Yun business issues.

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README

h3yun-sql-troubleshooter

一个给 AI 使用的氚云 SQL 查询 MCP 工具。AI 可以调用 query_sql,把只读 SQL 发送到氚云平台接口执行,并拿到真实数据结果;辅助排查氚云业务问题是它的典型使用场景之一。

MCP 配置

已发布到 npm 时,推荐这样配置:

{
  "mcpServers": {
    "h3yun-sql-troubleshooter": {
      "command": "npx",
      "args": ["h3yun-sql-troubleshooter"]
    }
  }
}

如果使用本机开发目录,可以直接指向入口文件:

{
  "mcpServers": {
    "h3yun-sql-troubleshooter": {
      "command": "node",
      "args": ["D:/ai/mcps/h3yun-sql-troubleshooter/src/index.js"]
    }
  }
}

凭据准备

工具需要两个氚云参数:

  • .h3token:保存从浏览器 Cookie 中取得的 h3_token 值。
  • cmax.json:其中的 engineCode 是氚云企业引擎编码。

推荐把这两个文件放在氚云应用项目目录下。AI 调用工具时可以传入 projectDir,也可以让工具从当前工作区自动向上或向下查找。

示例目录:

C:\workspace\h3yun-projects
└── 示例应用(a12345)
    ├── cmax.json
    └── .h3token

如果当前工作区下有多个氚云应用目录,AI 应在调用 query_sql 时通过 projectDir 指定目标项目。

如果不想放文件,也可以通过环境变量提供:

H3YUN_TOKEN=<h3_token>
H3YUN_ENGINE_CODE=<engineCode>

工具

query_sql

执行氚云只读 SQL 查询。

入参示例:

{
  "sql": "select ObjectId, Name from h_user limit 5",
  "projectDir": "D:/workspace/h3yun-app",
  "reason": "查询用户基础信息"
}

行为规则:

  • 只允许 selectwithshowdescribedescexplain 等查询类 SQL。
  • SQL 末尾的分号会自动移除。
  • 用户未指定查询条数时,select/with 查询会默认追加 LIMIT 20
  • 氚云业务表通常是 i_表单编码,系统表通常以 h_ 开头。

get_h3yun_sql_troubleshooting_guide

返回给 AI 使用的氚云 SQL 查询指南,说明如何根据 cmax.jsonfields.md、业务表和系统表规则定位表单、字段和数据库表名。

实现约定

工具默认调用氚云平台内置接口:

  • SQL 预览接口:/rx-report/integrate/data-source/v1/customsql/previewSql
  • 报表校验接口:/Console/Reporting/OnAction

正式执行用户 SQL 前,工具会先通过报表校验接口查询 System 用户的 ObjectId,再用该用户上下文调用 SQL 预览接口。

请求头使用:

  • Authorization: Bearer <h3_token>
  • EngineCode: <engineCode>
  • Origin: https://www.h3yun.com

AI 使用建议

AI 在查询前应优先读取项目中的:

  • cmax.json:确认表单名称和表单编码。
  • fields.md:确认字段名称和控件编码。

涉及系统表时,应参考氚云系统表说明文档:

https://h3yunpro.github.io/docs/database/

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