pg_geometry_transform

Transform a WKT or GeoJSON geometry from one SRID to another. Common SRIDs: 4326 (WGS84/GPS), 3857 (Web Mercator).

SERVERPostgreSQL MCP Server SOURCE@neverinfamous/postgres-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-neverinfamous-postgres-mcp/pg-geometry-transform.md

WHAT IT DOES

What pg_geometry_transform does on PostgreSQL MCP Server

AI agents invoke pg_geometry_transform to trigger actions in PostgreSQL MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why pg_geometry_transform is rated High

This tool performs a geometric transformation operation (coordinate reprojection) which is a computation/execution rather than a simple read. It processes input geometry and produces a transformed result. It does not read from or write to the database, nor is it destructive or financial. The blast radius is low since it's a stateless transformation with no persistent side effects.

From the tool's definition 'Transform a WKT or GeoJSON geometry from one SRID to another' — performs a coordinate transformation computation/operation on input data

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs pg_geometry_transform safely

PolicyLayer is an MCP gateway: it sits between your AI agents and PostgreSQL MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For pg_geometry_transform, this is the rule to start with:

pg_geometry_transform Rate-limited

pg_geometry_transform stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "pg_geometry_transform": {
      "limits": [
        {
          "counter": "pg_geometry_transform_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect PostgreSQL MCP Server, apply this rule, and every pg_geometry_transform call is checked against it from then on.

FAQ

Questions about pg_geometry_transform

What does the pg_geometry_transform tool do? +

Transform a WKT or GeoJSON geometry from one SRID to another. Common SRIDs: 4326 (WGS84/GPS), 3857 (Web Mercator). It is categorised as a Execute tool in the PostgreSQL MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on pg_geometry_transform? +

Register the PostgreSQL MCP Server MCP server in PolicyLayer and add a rule for pg_geometry_transform: 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 PostgreSQL MCP Server. Nothing to install.

What risk level is pg_geometry_transform? +

pg_geometry_transform is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit pg_geometry_transform? +

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

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

pg_geometry_transform is provided by the PostgreSQL MCP Server MCP server (@neverinfamous/postgres-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

What pg_geometry_transform does on PostgreSQL MCP Server

Why pg_geometry_transform is rated High

The rule that runs pg_geometry_transform safely

Questions about pg_geometry_transform

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