Get a list of all tables in the database
AI agents call get_tables to retrieve information from Vanna AI 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 schema information (table names) from the database. It is a read-only query with no side effects, no code execution, and no data modification. The blast radius of misuse is minimal—an attacker gains only knowledge of the database structure. This is the lowest-risk category.
From the tool's definition Tool name 'get_tables' and description 'Get a list of all tables in the database' indicate a retrieval operation that queries database metadata without modification or execution of operations.
Attacks that exploit this kind of access
Get a list of all tables in the database. It is categorised as a Read tool in the Vanna AI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Vanna AI MCP Server MCP server in PolicyLayer and add a rule for get_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 Vanna AI MCP Server. Nothing to install.
get_tables 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 get_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.
Set action: deny in the PolicyLayer policy for get_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.
get_tables is provided by the Vanna AI MCP Server MCP server (lilgreml1n/vanna-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.
Teams ship this data inside their own products. See what a licence covers →