add_contact_tags · Smokeball MCP: Risk & Policy

WHAT IT DOES

What add_contact_tags does on Smokeball

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

WHY IT NEEDS A POLICY

Why add_contact_tags needs a policy

This tool creates or modifies contact tags, which is reversible (tags can be removed or edited later). It has no side effects beyond updating contact attributes in the Smokeball system. The severity is medium because misuse could corrupt contact data or add misleading tags that affect firm operations, but the impact is limited to metadata and is not destructive or financial.

From the tool's definition Tool name 'add_contact_tags' and description 'Add tags to a contact' indicate a create/modify operation on contact metadata. The parameter 'tags_csv: comma-separated tag strings' confirms data is being added to an existing contact record.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_contact_tags Rate-limited

add_contact_tags 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_contact_tags": {
      "limits": [
        {
          "counter": "add_contact_tags_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Smokeball, so you can run agents against it safely.

FAQ

Questions about add_contact_tags

What does the add_contact_tags tool do? +

Add tags to a contact. tags_csv: comma-separated tag strings. It is categorised as a Write tool in the Smokeball 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_contact_tags? +

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

What risk level is add_contact_tags? +

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

Can I rate-limit add_contact_tags? +

Yes. Add a rate_limit block to the add_contact_tags 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_contact_tags completely? +

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

add_contact_tags is provided by the Smokeball MCP server (rosenadvertising/smokeball-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.