export_to_sql_file · Postgres MCP: Risk & Policy

WHAT IT DOES

What export_to_sql_file does on Postgres

AI agents use export_to_sql_file to create or update resources in Postgres — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Postgres environment.

WHY IT NEEDS A POLICY

Why export_to_sql_file needs a policy

The tool creates or modifies a .sql file by writing database schema and data to it. This is a Write operation (reversible file creation) rather than Read (which would only retrieve data for display) or Destructive (which would delete/remove data from the database itself).

From the tool's definition Tool description states it 'Export[s] schema (DDL) and/or data from the connected database to a .sql file.' This is a file creation/write operation that generates new artifacts.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

export_to_sql_file Rate-limited

export_to_sql_file stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "export_to_sql_file": {
      "limits": [
        {
          "counter": "export_to_sql_file_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Postgres, so you can run agents against it safely.

FAQ

Questions about export_to_sql_file

What does the export_to_sql_file tool do? +

Export schema (DDL) and/or data from the connected database to a .sql file. Supports four content kinds via the. It is categorised as a Write tool in the Postgres MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on export_to_sql_file? +

Register the Postgres MCP server in PolicyLayer and add a rule for export_to_sql_file: 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 Postgres. Nothing to install.

What risk level is export_to_sql_file? +

export_to_sql_file is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit export_to_sql_file? +

Yes. Add a rate_limit block to the export_to_sql_file 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 export_to_sql_file completely? +

Set action: deny in the PolicyLayer policy for export_to_sql_file. 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 export_to_sql_file? +

export_to_sql_file is provided by the Postgres MCP server (teja-sudo/postgres-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.