create_contact · Apple Contacts MCP: Risk & Policy

WHAT IT DOES

What create_contact does on Apple Contacts MCP

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

WHY IT NEEDS A POLICY

Why create_contact needs a policy

This tool creates new contact records, which is a Write operation (data creation). Severity is medium because while contacts are personal data, the creation of new records is reversible and the tool includes safeguards (dry-run by default, explicit confirmation required). It does not irreversibly delete data (Destructive), execute arbitrary code (Execute), or involve financial transactions (Financial).

From the tool's definition Tool description states it "Create[s] an Apple Contact" and requires "dryRun=false and confirm=true" for actual writes, confirming it creates/modifies data reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_contact Rate-limited

create_contact 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": {
    "create_contact": {
      "limits": [
        {
          "counter": "create_contact_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 Apple Contacts MCP, so you can run agents against it safely.

FAQ

Questions about create_contact

What does the create_contact tool do? +

Create an Apple Contact. Dry-run by default; actual writes require dryRun=false and confirm=true. It is categorised as a Write tool in the Apple Contacts 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 create_contact? +

Register the Apple Contacts MCP server in PolicyLayer and add a rule for create_contact: 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 Apple Contacts MCP. Nothing to install.

What risk level is create_contact? +

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

Can I rate-limit create_contact? +

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

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

create_contact is provided by the Apple Contacts MCP server (lu-wo/apple-contacts-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.