List all user tables in the specified database connection.
AI agents call list_tables to retrieve information from MCP Database Query Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about database structure (table names) without modifying, executing, or deleting any data. It is a standard Read operation with minimal risk—misuse would only expose table names, not data values or system compromise.
From the tool's definition Tool name 'list_tables' and description 'List all user tables in the specified database connection' indicate a retrieval operation with no side effects.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
List all user tables in the specified database connection. It is categorised as a Read tool in the MCP Database Query Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Database Query 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 MCP Database Query Server. Nothing to install.
list_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 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.
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.
list_tables is provided by the MCP Database Query Server MCP server (vicus-brits/mcp-server). 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.
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