geocode · ArcGIS MCP: Risk & Policy

WHAT IT DOES

What geocode does on ArcGIS MCP

AI agents invoke geocode to trigger actions in ArcGIS MCP. 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.

WHY IT NEEDS A POLICY

Why geocode needs a policy

Geocoding typically involves sending address or location data to an external service to resolve coordinates, which is an external operation (Execute). However, with no description available, confidence is low. It could also be Read if it merely queries a geocoding service without side effects. Severity is medium given potential for data exposure or unintended external calls.

From the tool's definition Tool name 'geocode' only; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

geocode Rate-limited

geocode 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": {
    "geocode": {
      "limits": [
        {
          "counter": "geocode_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about geocode

What does the geocode tool do? +

geocode. It is categorised as a Execute tool in the ArcGIS MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on geocode? +

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

What risk level is geocode? +

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

Can I rate-limit geocode? +

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

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

geocode is provided by the ArcGIS MCP server (renemorenow/arcgis-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.