get_schema_info

Get column metadata for a table or all tables in the configured database:

SERVERMySQL MCP Server SOURCEdesigncomputer/mysql_mcp_server

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade C, identity unverified Pull the record →

This record as markdown: /tools/designcomputer-mysql-mcp-server/get-schema-info.md

WHAT IT DOES

What get_schema_info does on MySQL MCP Server

AI agents call get_schema_info to retrieve information from MySQL MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_schema_info is rated Low

This tool retrieves structural metadata (column names, types, constraints) about database tables. It performs no write operations, executes no queries against data, and has no side effects. The action is informational only, consistent with the Read category. Severity is low because schema information is typically non-sensitive structural data, and misuse would not result in data loss or unintended modifications.

From the tool's definition Tool name 'get_schema_info' and description 'Get column metadata for a table or all tables' indicate pure retrieval of schema information with no modification or execution capabilities.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_schema_info safely

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

get_schema_info Allowed

get_schema_info is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_schema_info": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about get_schema_info

What does the get_schema_info tool do? +

Get column metadata for a table or all tables in the configured database:. It is categorised as a Read tool in the MySQL MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_schema_info? +

Register the MySQL MCP Server MCP server in PolicyLayer and add a rule for get_schema_info: 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 Server. Nothing to install.

What risk level is get_schema_info? +

get_schema_info is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_schema_info? +

Yes. Add a rate_limit block to the get_schema_info 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 get_schema_info completely? +

Set action: deny in the PolicyLayer policy for get_schema_info. 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 get_schema_info? +

get_schema_info is provided by the MySQL MCP Server MCP server (designcomputer/mysql_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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