list-tables

List all tables in the database

Server ODBC MCP Server tylerstoltz/mcp-odbc
Category Read
Risk class Low
Parameters 00 required

What list-tables does on ODBC MCP Server

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

Why list-tables needs a policy

This tool retrieves database schema metadata (table names) with no side effects, creation, modification, deletion, or code execution. It is a benign informational query consistent with the server's read-only design. Severity is low because exposing table names poses minimal risk; the actual data access requires separate execute-query calls with additional permissions.

From the tool's definition Tool name 'list-tables' and description 'List all tables in the database' indicate retrieval of metadata without modification. Server description emphasizes 'read-only safeguards' and the tool is a sibling to other introspection/query operations.

Questions about list-tables

What does the list-tables tool do? +

List all tables in the database. It is categorised as a Read tool in the ODBC MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list-tables? +

Register the ODBC MCP Server MCP server in PolicyLayer and add a rule for list-tables: 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 ODBC MCP Server. Nothing to install.

What risk level is list-tables? +

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

Can I rate-limit list-tables? +

Yes. Add a rate_limit block to the list-tables 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-tables completely? +

Set action: deny in the PolicyLayer policy for list-tables. 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-tables? +

list-tables is provided by the ODBC MCP Server MCP server (tylerstoltz/mcp-odbc). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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