switch_database · Mysql Mcp Webui MCP: Risk & Policy

WHAT IT DOES

What switch_database does on Mysql Mcp Webui

AI agents use switch_database to create or update resources in Mysql Mcp Webui — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mysql Mcp Webui environment.

WHY IT NEEDS A POLICY

Why switch_database needs a policy

This tool modifies session/connection state by changing the active database context. It is reversible (you can switch back) and does not read, delete, or execute arbitrary code, making Write the most appropriate category. Misuse could cause subsequent queries to run against the wrong database, leading to unintended data exposure or modification.

From the tool's definition Switch to a different database, making it the current/default database... sets the database as the current context and activates it for use

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

switch_database Rate-limited

switch_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": {
    "switch_database": {
      "limits": [
        {
          "counter": "switch_database_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mysql Mcp Webui, so you can run agents against it safely.

FAQ

Questions about switch_database

What does the switch_database tool do? +

Switch to a different database, making it the current/default database. This sets the database as the current context and activates it for use. The database will be automatically activated if not already active. After switching, you. It is categorised as a Write tool in the Mysql Mcp Webui MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on switch_database? +

Register the Mysql Mcp Webui MCP server in PolicyLayer and add a rule for switch_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 Mysql Mcp Webui. Nothing to install.

What risk level is switch_database? +

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

Can I rate-limit switch_database? +

Yes. Add a rate_limit block to the switch_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 switch_database completely? +

Set action: deny in the PolicyLayer policy for switch_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 switch_database? +

switch_database is provided by the Mysql Mcp Webui MCP server (yashagldit/mysql-mcp-webui). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.