create_choropleth · Leaflet MCP: Risk & Policy

WHAT IT DOES

What create_choropleth does on Leaflet

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

WHY IT NEEDS A POLICY

Why create_choropleth needs a policy

This tool generates code for a choropleth map visualization. It creates/writes code artifacts but has no side effects beyond code generation. It does not execute the code, delete data, or involve financial transactions. Severity is low because the output is code generation for documentation/visualization purposes.

From the tool's definition Generate code for creating an interactive choropleth (data visualization) map with color scales and legends

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_choropleth Rate-limited

create_choropleth 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": {
    "create_choropleth": {
      "limits": [
        {
          "counter": "create_choropleth_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 Leaflet, so you can run agents against it safely.

FAQ

Questions about create_choropleth

What does the create_choropleth tool do? +

Generate code for creating an interactive choropleth (data visualization) map with color scales and legends. It is categorised as a Write tool in the Leaflet MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_choropleth? +

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

What risk level is create_choropleth? +

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

Can I rate-limit create_choropleth? +

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

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

create_choropleth is provided by the Leaflet MCP server (philgebauer/leaflet-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.