Get storage size information for a table.
AI agents call mysql_table_size to retrieve information from Mysql without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves storage size information—a read-only query of database metadata. It has no side effects, does not modify data, and does not execute arbitrary operations. The server is also described as providing 'read-only queries,' which aligns with this classification. Blast radius is minimal as misuse only exposes storage information.
From the tool's definition Tool name 'mysql_table_size' and description 'Get storage size information for a table' indicate a retrieval operation that queries table metadata without modifying or deleting data.
Documented attack patterns abuse exactly the kind of access mysql_table_size gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mysql, and nothing reaches the server without passing your rules. This is the rule we recommend for mysql_table_size:
{
"version": "1",
"default": "deny",
"tools": {
"mysql_table_size": {}
}
}mysql_table_size is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get storage size information for a table. It is categorised as a Read tool in the Mysql MCP Server, which means it retrieves data without modifying state.
Register the Mysql MCP server in PolicyLayer and add a rule for mysql_table_size: 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. Nothing to install.
mysql_table_size is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the mysql_table_size 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.
Set action: deny in the PolicyLayer policy for mysql_table_size. 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.
mysql_table_size is provided by the Mysql MCP server (mukul975/mysql-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mysql, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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233 Mysql tools catalogued and risk-classified — across an index of 43,000+ MCP servers.