// SCAN REPORT

MCP-YNU FastMCP Server

12 tools. 4 can modify or destroy data without limits.

1 destructive tool with no built-in limits. Policy required.

Last updated: 5 Jul 2026

4 can modify or destroy data

8 read-only

12 tools total

Community server · catalogue entry verified 05/07/2026

How to control MCP-YNU FastMCP Server ↓

TOOL MAP

What MCP-YNU FastMCP Server exposes to your agents

Read (8) Write / Execute (3) Destructive / Financial (1)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

Critical Risk

The most dangerous MCP-YNU FastMCP Server tools

Destructive · High delSmtpAlias The 'del' prefix indicates deletion of an SMTP alias, which is an irreversible removal operation. Write · Medium addSmtpAlias This tool creates or adds new SMTP alias records for email users. Write · Medium update_user_biz_mail_alias This tool creates or modifies email alias mappings reversibly. Write · High updatePassword This tool modifies user account passwords, which is a reversible write operation (passwords can be changed again).

4 of MCP-YNU FastMCP Server's 12 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control MCP-YNU FastMCP Server

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP-YNU FastMCP Server, and nothing reaches the server without passing your rules. These are the rules we recommend:

Deny destructive operations

{
  "delSmtpAlias": {
    "deny_if": [
      {
        "conditions": [],
        "on_deny": "Blocked by default. Requires approval."
      }
    ]
  }
}

Destructive tools should never be available to autonomous agents without human approval.

Rate limit write operations

{
  "addSmtpAlias": {
    "limits": [
      {
        "counter": "addsmtpalias_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "calculate_bmi": {
    "limits": [
      {
        "counter": "calculate_bmi_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register MCP-YNU FastMCP Server — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON MCP-YNU FASTMCP →

Instant setup, no code required.

FULL CATALOGUE

All 12 MCP-YNU FastMCP Server tools

DESTRUCTIVE 1 tools

Destructive delSmtpAlias 添加 coremail 用户 user_at_domain 的别名信息

WRITE 3 tools

Write addSmtpAlias 添加 coremail 用户 user_at_domain 的别名信息 Write update_user_biz_mail_alias 根据企微用户id user_id 及企业邮箱别名 biz_mail_alias 设置其企业邮箱别名 Write updatePassword 修改 coremail 用户 user_at_domain 的密码为 password

READ 8 tools

Read calculate_bmi Calculate BMI given weight in kg and height in meters Read fetch_weather Fetch current weather for a city Read get_user 根据企微用户id userid 获取企微用户信息 Read get_userid_by_telphone 根据企微用户电话号码 telphone 获取企微用户id userid 信息 Read getAttrs 获取 coremail 用户 user_at_domain 的指定属性（默认为姓名，统一身份认证用户名，用户状态）信息 Read getSmtpAlias 获取 coremail 用户 user_at_domain 的用户的别名信息 Read getUserFromCasName 根据统一身份认证用户 cas_name 查找 coremail 用户 Read userExist2 检查 coremail 用户 user_at_domain 是否存在

FAQ

Questions about MCP-YNU FastMCP Server

Can an AI agent delete data through the MCP-YNU FastMCP Server MCP server? +

Yes. The MCP-YNU FastMCP Server server exposes 1 destructive tools including delSmtpAlias. These permanently remove resources with no undo. PolicyLayer blocks destructive tools by default so they never reach the upstream server.

How do I prevent bulk modifications through MCP-YNU FastMCP Server? +

The MCP-YNU FastMCP Server server has 3 write tools including addSmtpAlias, update_user_biz_mail_alias, updatePassword. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach MCP-YNU FastMCP Server.

How many tools does the MCP-YNU FastMCP Server MCP server expose? +

12 tools across 2 categories: Read, Write. 8 are read-only. 4 can modify, create, or delete data.

How do I enforce a policy on MCP-YNU FastMCP Server? +

Register the MCP-YNU FastMCP Server MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every MCP-YNU FastMCP Server tool call.

Deterministic rules across all 12 MCP-YNU FastMCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON MCP-YNU FASTMCP →

Instant setup, no code required.

12 MCP-YNU FastMCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.