add_keywords · Google Ads MCP Server MCP: Risk & Policy

WHAT IT DOES

What add_keywords does on Google Ads MCP Server

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

WHY IT NEEDS A POLICY

Why add_keywords needs a policy

Adding keywords to Google Ads campaigns creates or modifies campaign configuration data reversibly. This is a Write operation, not Read (it modifies state). While not Destructive (reversible), Execute (code execution), or Financial (no direct money movement), it is a high-severity Write because misuse could materially damage ad spend efficiency, campaign performance, and marketing ROI.

From the tool's definition Tool name 'add_keywords' combined with server context 'managing Google Ads campaigns' and sibling tools like 'create_ad_group', 'create_campaign', 'create_responsive_search_ad' indicate data creation/modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_keywords Rate-limited

add_keywords 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_keywords": {
      "limits": [
        {
          "counter": "add_keywords_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 Google Ads MCP Server, so you can run agents against it safely.

FAQ

Questions about add_keywords

What does the add_keywords tool do? +

add_keywords. It is categorised as a Write tool in the Google Ads 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_keywords? +

Register the Google Ads MCP Server MCP server in PolicyLayer and add a rule for add_keywords: 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 Google Ads MCP Server. Nothing to install.

What risk level is add_keywords? +

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

Can I rate-limit add_keywords? +

Yes. Add a rate_limit block to the add_keywords 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_keywords completely? +

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

add_keywords is provided by the Google Ads MCP Server MCP server (maxghenis/google-ads-mcp-rw). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.