generate_sample_queries

Generate sample SQL queries for a given table to help with exploration

Server Vertica MCP Server smith-nathanh/vertica-mcp-server
Category Read
Risk class Low
Parameters 00 required

What generate_sample_queries does on Vertica MCP Server

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

Why generate_sample_queries needs a policy

This tool generates sample SQL queries for exploration purposes. It produces query text/suggestions rather than executing them against the database. The tool is read-oriented (inspecting table structure to suggest queries) with no side effects. Severity is low because it only generates query strings and does not execute them or modify any data.

From the tool's definition Generate sample SQL queries for a given table to help with exploration

Questions about generate_sample_queries

What does the generate_sample_queries tool do? +

Generate sample SQL queries for a given table to help with exploration. It is categorised as a Read tool in the Vertica MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on generate_sample_queries? +

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

What risk level is generate_sample_queries? +

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

Can I rate-limit generate_sample_queries? +

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

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

generate_sample_queries is provided by the Vertica MCP Server MCP server (smith-nathanh/vertica-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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