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willdynan

mcp-data-gateway

by willdynan

mcp-data-gateway

tests

把 AI 客户端交给一个人,MCP 很容易。把它交给一个团队——分析师、人事运营、负责人,各自有权访问不同的系统——服务器就需要一个它能捍卫的答案:谁在调用,他们可以碰什么?这个仓库就是那个答案,精简到承重部分。

一个 allows() 决策驱动一切。它过滤每个身份能看到的内容,并且拒绝他们无论如何尝试的内容,因此工具列表从来不是调用者和系统之间唯一的屏障。授权默认关闭:缺失或损坏的存储会拒绝所有人,除了一个存在于代码中的破窗超级用户,正是为了确保没有存储故障能把修复存储的人锁在外面。每次调用——以及每次拒绝——都会落为一条有大小上限的审计记录。

内置的观点:

  • 授权逐个命名工具。Globs 在加载时被拒绝,因为某人下季度发布的写入工具绝不能继承进入只读身份。

  • 连接两个系统的工具声明两者,调用者需要两者。泄露的是读取,而不是名称。

  • 一个快照测试固定工具表面,另一个将写入表面保持在恰好一个工具。

  • SQL 门提供快速、具体的拒绝——但真正的围栏是数据库身份权限。你可以绕过文本扫描。你无法绕过 IAM。

快速开始

python3 -m unittest discover -s tests   # no dependencies
python3 -m gateway.demo                 # three identities, one denial on the record
pip install mcp && GATEWAY_IDENTITY=analyst@example.com python3 -m gateway.server

Related MCP server: AgentsID Guard

深入阅读

docs/design.md 用捕获的输出逐步讲解各个部分。docs/rules.md 为每条规则给出理由和测试。docs/lineage.md 记录诚实的限制和来源。

2026 年 8 月从生产网关中提炼而成,每条规则都是通过艰难方式赢得的。提交日志从提炼开始。

A
license - permissive license
Not graded
quality - not tested
B
maintenance

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