grant_mysql_user_database

Grant an existing MySQL user access to a database

SERVER20i MCP Server SOURCEcbrown35/20i-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/cbrown35-20i-mcp/grant-mysql-user-database.md

WHAT IT DOES

What grant_mysql_user_database does on 20i MCP Server

AI agents use grant_mysql_user_database to create or update resources in 20i MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 20i MCP Server environment.

RISK

Why grant_mysql_user_database is rated Medium

This tool modifies database access permissions by granting an existing MySQL user rights to a database. It is a reversible write operation (permissions can be revoked), but misuse could expose sensitive data by granting unauthorized access to databases.

From the tool's definition Grant an existing MySQL user access to a database

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs grant_mysql_user_database safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 20i MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For grant_mysql_user_database, this is the rule to start with:

grant_mysql_user_database Rate-limited

grant_mysql_user_database stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "grant_mysql_user_database": {
      "limits": [
        {
          "counter": "grant_mysql_user_database_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect 20i MCP Server, apply this rule, and every grant_mysql_user_database call is checked against it from then on.

FAQ

Questions about grant_mysql_user_database

What does the grant_mysql_user_database tool do? +

Grant an existing MySQL user access to a database. It is categorised as a Write tool in the 20i MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on grant_mysql_user_database? +

Register the 20i MCP Server MCP server in PolicyLayer and add a rule for grant_mysql_user_database: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches 20i MCP Server. Nothing to install.

What risk level is grant_mysql_user_database? +

grant_mysql_user_database is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit grant_mysql_user_database? +

Yes. Add a rate_limit block to the grant_mysql_user_database rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block grant_mysql_user_database completely? +

Set action: deny in the PolicyLayer policy for grant_mysql_user_database. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides grant_mysql_user_database? +

grant_mysql_user_database is provided by the 20i MCP Server MCP server (cbrown35/20i-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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