Describe a table
AI agents call describe-table to retrieve information from Mysql Multi without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves and displays table structure information (columns, types, constraints, etc.) without altering data or schema. It has no side effects and poses minimal risk even if invoked by an AI agent with incorrect parameters—the worst outcome is querying the wrong table, which returns harmless metadata. Confidence is high because the operation is explicitly non-destructive and query-based.
From the tool's definition Tool name 'describe-table' and description 'Describe a table' indicate a retrieval operation that returns table schema/metadata without modification. This is a standard read-only database operation.
Attacks that exploit this kind of access
Describe a table. It is categorised as a Read tool in the Mysql Multi MCP Server, which means it retrieves data without modifying state.
Register the Mysql Multi MCP server in PolicyLayer and add a rule for describe-table: 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 Multi. Nothing to install.
describe-table 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 describe-table 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 describe-table. 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.
describe-table is provided by the Mysql Multi MCP server (pchimbolo/mysql-multi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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