list_views

List all views in the database

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

What list_views does on Vertica MCP Server

AI agents call list_views 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 list_views needs a policy

This tool performs a read-only query of database metadata to enumerate views. It has no side effects, does not execute user-supplied code, does not modify data, and does not delete or move data. The blast radius of misuse is minimal—an agent listing views gains informational access but cannot interact with the views' underlying data or alter database state.

From the tool's definition Tool name 'list_views' and description 'List all views in the database' indicate a retrieval operation with no modification or execution of arbitrary logic. It retrieves metadata about database views, similar in nature to the sibling tool 'list_tables'.

Questions about list_views

What does the list_views tool do? +

List all views in the database. 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 list_views? +

Register the Vertica MCP Server MCP server in PolicyLayer and add a rule for list_views: 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 list_views? +

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

Can I rate-limit list_views? +

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

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

list_views 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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