Get detailed information about a table's columns
AI agents call describe_table to retrieve information from DataPilot MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and returns table schema information (column names, types, constraints, etc.). It has no side effects, does not execute code, does not modify data, and does not involve financial transactions. It is a straightforward metadata lookup operation typical of database introspection tools.
From the tool's definition Tool name is 'describe_table' and description states 'Get detailed information about a table's columns' — a retrieval operation that queries schema metadata without modifying or executing operations on data.
Attacks that exploit this kind of access
Get detailed information about a table's columns. It is categorised as a Read tool in the DataPilot MCP Server MCP Server, which means it retrieves data without modifying state.
Register the DataPilot MCP Server 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 DataPilot MCP Server. 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 DataPilot MCP Server MCP server (rickyb30/datapilot-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
describe_table is one line of DataPilot MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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