export_view_png · Arcmap MCP: Risk & Policy

WHAT IT DOES

What export_view_png does on Arcmap

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

WHY IT NEEDS A POLICY

Why export_view_png needs a policy

The tool exports a map view to a PNG file, which creates a new file artifact. This is a Write operation (creates new data) rather than Read (querying existing state). Severity is medium because while file creation is reversible, exporting map data could contain sensitive geospatial information that an AI agent might unintentionally expose.

From the tool's definition Tool name 'export_view_png' combined with server description stating 'exporting maps' capability. No description provided for the specific tool.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

export_view_png Rate-limited

export_view_png 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": {
    "export_view_png": {
      "limits": [
        {
          "counter": "export_view_png_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 Arcmap, so you can run agents against it safely.

FAQ

Questions about export_view_png

What does the export_view_png tool do? +

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

How do I enforce a policy on export_view_png? +

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

What risk level is export_view_png? +

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

Can I rate-limit export_view_png? +

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

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

export_view_png is provided by the Arcmap MCP server (pedralcg/arcmap-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.