fl_create_view · ArcGIS MCP: Risk & Policy

WHAT IT DOES

What fl_create_view does on ArcGIS MCP

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

WHY IT NEEDS A POLICY

Why fl_create_view needs a policy

The 'create' action in the tool name indicates a write operation that establishes a new resource (likely a feature layer view). This is reversible (views can be deleted) and has moderate blast radius if an AI agent creates unwanted views, polluting the geospatial catalog or consuming resources.

From the tool's definition Tool name 'fl_create_view' suggests creating a feature layer view. No description provided, but 'create' indicates data/resource generation. Context shows this is part of ArcGIS feature layer management tools.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

fl_create_view Rate-limited

fl_create_view 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": {
    "fl_create_view": {
      "limits": [
        {
          "counter": "fl_create_view_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, so you can run agents against it safely.

FAQ

Questions about fl_create_view

What does the fl_create_view tool do? +

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

How do I enforce a policy on fl_create_view? +

Register the ArcGIS MCP server in PolicyLayer and add a rule for fl_create_view: 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 fl_create_view? +

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

Can I rate-limit fl_create_view? +

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

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

fl_create_view 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.