create_contact_note · Intercom MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_contact_note does on Intercom MCP Server

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

WHY IT NEEDS A POLICY

Why create_contact_note needs a policy

Adding internal notes to contacts is a reversible modification that creates new data without deleting existing data or executing code. It does not incur financial costs, delete data permanently, or execute external operations. The blast radius is low since notes are typically internal documentation and do not directly affect customer-facing systems or critical workflows.

From the tool's definition Tool description states it will 'add an internal note to a contact', which is a reversible data creation/modification operation. The verb 'add' and the purpose of annotating contact records confirms this is a write operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_contact_note Rate-limited

create_contact_note 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_note": {
      "limits": [
        {
          "counter": "create_contact_note_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 Intercom MCP Server, so you can run agents against it safely.

FAQ

Questions about create_contact_note

What does the create_contact_note tool do? +

Use this tool to add an internal note to a contact. It is categorised as a Write tool in the Intercom MCP Server 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_note? +

Register the Intercom MCP Server MCP server in PolicyLayer and add a rule for create_contact_note: 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 Intercom MCP Server. Nothing to install.

What risk level is create_contact_note? +

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

Can I rate-limit create_contact_note? +

Yes. Add a rate_limit block to the create_contact_note 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_note completely? +

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

create_contact_note is provided by the Intercom MCP Server MCP server (shackletonanalytics/intercom-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.