Search for tables in the PostgreSQL database matching a pattern
AI agents call search_postgresql_table to retrieve information from MCP Document Converter without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool queries database schema information to find matching table names. This is a standard metadata search with no side effects, no code execution, no data modification, and no destructive operations. It is purely informational, making it a Read category tool with low severity since exposing table names carries minimal direct risk compared to actual data access or modification capabilities.
From the tool's definition Tool name and description: 'Search for tables in the PostgreSQL database matching a pattern' — this retrieves metadata about table names, a read-only query operation with no data modification or deletion.
Attacks that exploit this kind of access
Search for tables in the PostgreSQL database matching a pattern. It is categorised as a Read tool in the MCP Document Converter MCP Server, which means it retrieves data without modifying state.
Register the MCP Document Converter MCP server in PolicyLayer and add a rule for search_postgresql_table: 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 Document Converter. Nothing to install.
search_postgresql_table 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 search_postgresql_table 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 search_postgresql_table. 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.
search_postgresql_table is provided by the MCP Document Converter MCP server (kittolau/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.
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