op_edit_item · Op MCP: Risk & Policy

WHAT IT DOES

What op_edit_item does on Op

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

WHY IT NEEDS A POLICY

Why op_edit_item needs a policy

This tool modifies 1Password vault items (passwords, secrets, credentials) but the changes are reversible (can be edited again or undone), placing it in Write rather than Destructive. Severity is high because vault items often contain sensitive credentials whose modification could compromise security or access controls.

From the tool's definition Tool name is 'op_edit_item' and server description states it 'enables MCP clients...to read, create, edit, and delete password vault items'. The 'edit' action modifies vault items reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

op_edit_item Rate-limited

op_edit_item 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": {
    "op_edit_item": {
      "limits": [
        {
          "counter": "op_edit_item_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 Op, so you can run agents against it safely.

FAQ

Questions about op_edit_item

What does the op_edit_item tool do? +

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

How do I enforce a policy on op_edit_item? +

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

What risk level is op_edit_item? +

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

Can I rate-limit op_edit_item? +

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

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

op_edit_item is provided by the Op MCP server (jluckyiv/op-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.