add_tag_by_id · Ontraport MCP Server MCP: Risk & Policy

WHAT IT DOES

What add_tag_by_id does on Ontraport MCP Server

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

WHY IT NEEDS A POLICY

Why add_tag_by_id needs a policy

Adding tags to contacts is a Write operation because it creates or modifies data in a reversible manner. Tags can be removed or changed later, so this is not destructive. The blast radius is medium because bulk tag application to multiple contacts could affect CRM data integrity, contact workflows, or marketing automation rules, but the modification is non-destructive and can be undone.

From the tool's definition Tool description states 'Apply one or more tags to one or more contacts' — this modifies contact records by adding tags, which is a reversible data modification operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_tag_by_id Rate-limited

add_tag_by_id 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": {
    "add_tag_by_id": {
      "limits": [
        {
          "counter": "add_tag_by_id_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 Ontraport MCP Server, so you can run agents against it safely.

FAQ

Questions about add_tag_by_id

What does the add_tag_by_id tool do? +

Apply one or more tags to one or more contacts by tag ID. Use this only when you already have the tag ID. It is categorised as a Write tool in the Ontraport 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 add_tag_by_id? +

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

What risk level is add_tag_by_id? +

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

Can I rate-limit add_tag_by_id? +

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

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

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