item_publish · ArcGIS MCP: Risk & Policy

WHAT IT DOES

What item_publish does on ArcGIS MCP

AI agents use item_publish 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 item_publish needs a policy

Publishing items in ArcGIS creates new resources or modifies existing ones, making this a Write operation. The high severity reflects the potential blast radius of an AI agent publishing unauthorized or malicious GIS content, maps, or datasets to shared repositories.

From the tool's definition Tool name 'item_publish' combined with server context (ArcGIS item management) indicates creation or modification of publishable items/content in ArcGIS Online/Enterprise. No destructive keywords present.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

item_publish Rate-limited

item_publish 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": {
    "item_publish": {
      "limits": [
        {
          "counter": "item_publish_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 item_publish

What does the item_publish tool do? +

item_publish. 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 item_publish? +

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

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

Can I rate-limit item_publish? +

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

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

item_publish 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.