arcgis_contour · ArcGIS MCP Server MCP: Risk & Policy

WHAT IT DOES

What arcgis_contour does on ArcGIS MCP Server

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

WHY IT NEEDS A POLICY

Why arcgis_contour needs a policy

An AI agent can call arcgis_contour faster than any human can review — one bad instruction and it creates or modifies resources in ArcGIS MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

arcgis_contour Rate-limited

arcgis_contour 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": {
    "arcgis_contour": {
      "limits": [
        {
          "counter": "arcgis_contour_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 ArcGIS MCP Server, so you can run agents against it safely.

FAQ

Questions about arcgis_contour

What does the arcgis_contour tool do? +

arcgis_contour. It is categorised as a Write tool in the ArcGIS MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on arcgis_contour? +

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

What risk level is arcgis_contour? +

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

Can I rate-limit arcgis_contour? +

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

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

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