get_bounds

THE RISK

Low Risk

Why get_bounds needs a policy

This tool retrieves metadata about a geometry object (its bounding box/extent). It is a read-only query operation with no side effects, data modification, code execution, or financial implications. The low severity reflects minimal blast radius—misuse would only expose or retrieve spatial metadata without causing harm.

From the tool's definition Tool name 'get_bounds' and description 'Get the bounds of a geometry' indicate a retrieval operation that queries geometric properties without modifying data. No write, execute, or destructive operations are indicated.

Documented attack patterns abuse exactly the kind of access get_bounds gives an agent:

POLICY

How to control get_bounds

PolicyLayer is an MCP gateway — it sits between your AI agents and GIS MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_bounds:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_bounds": {}
  }
}

get_bounds is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register GIS MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More GIS MCP Server tools

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All 98 GIS MCP Server tools →

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_bounds

What does the get_bounds tool do? +

Get the bounds of a geometry. It is categorised as a Read tool in the GIS MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_bounds? +

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

What risk level is get_bounds? +

get_bounds is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_bounds? +

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

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

get_bounds is provided by the GIS MCP Server MCP server (mahdin75/gis-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every GIS MCP Server tool call.

Start from GIS MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →