Get a list of all tables in the database along with their column information. Use this first to understand the database structure before querying.
AI agents call listTables to retrieve information from Cloudflare Remote PostgreSQL Database 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 structural information about the database (table and column names) without modifying, deleting, or executing arbitrary operations. It is a read-only discovery operation with minimal blast radius if misused—an agent can only discover what tables and columns exist, not access data or trigger external actions.
From the tool's definition Tool name 'listTables' and description 'Get a list of all tables in the database along with their column information' indicate retrieval of schema metadata with no side effects.
Attacks that exploit this kind of access
Get a list of all tables in the database along with their column information. Use this first to understand the database structure before querying. It is categorised as a Read tool in the Cloudflare Remote PostgreSQL Database MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Cloudflare Remote PostgreSQL Database MCP Server MCP server in PolicyLayer and add a rule for listTables: 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 Cloudflare Remote PostgreSQL Database MCP Server. Nothing to install.
listTables 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 listTables 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 listTables. 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.
listTables is provided by the Cloudflare Remote PostgreSQL Database MCP Server MCP server (technophile-04/sre-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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