item_reassign · ArcGIS MCP: Risk & Policy

WHAT IT DOES

What item_reassign does on ArcGIS MCP

AI agents use item_reassign 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_reassign needs a policy

Reassigning an item changes its ownership, which is a reversible write operation. However, the description is empty, lowering confidence. Based on naming conventions in ArcGIS, 'reassign' typically means transferring item ownership to another user, which is a significant write action with high blast radius if misused (e.g., bulk reassignment could disrupt access control).

From the tool's definition Tool name 'item_reassign' suggests transferring ownership of an item from one user to another.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

item_reassign Rate-limited

item_reassign 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_reassign": {
      "limits": [
        {
          "counter": "item_reassign_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_reassign

What does the item_reassign tool do? +

item_reassign. 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_reassign? +

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

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

Can I rate-limit item_reassign? +

Yes. Add a rate_limit block to the item_reassign 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_reassign completely? +

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

item_reassign 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.