mutate_keyword_plan_campaign_keywords

THE RISK

Medium Risk

Why mutate_keyword_plan_campaign_keywords needs a policy

This tool modifies keyword data within campaign plans, which is reversible but operationally significant. It affects advertising campaign configuration and could impact ad spend and targeting. Classified as Write rather than Execute because it modifies structured data (keywords) rather than executing arbitrary code or queries.

From the tool's definition Tool name 'mutate_keyword_plan_campaign_keywords' indicates modification of keyword plan campaign keywords. The verb 'mutate' in Google Ads API terminology means create, update, or modify data.

Documented attack patterns abuse exactly the kind of access mutate_keyword_plan_campaign_keywords gives an agent:

POLICY

How to control mutate_keyword_plan_campaign_keywords

PolicyLayer is an MCP gateway — it sits between your AI agents and Google Ads, and nothing reaches the server without passing your rules. This is the rule we recommend for mutate_keyword_plan_campaign_keywords:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "mutate_keyword_plan_campaign_keywords": {
      "limits": [
        {
          "counter": "mutate_keyword_plan_campaign_keywords_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

mutate_keyword_plan_campaign_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.

Create a free account and register Google Ads — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

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EXPLORE

Related tools and policies

More Google Ads tools

Destructive remove_ad_group_customizer Remove an ad group customizer. Destructive remove_asset_group_signal Remove an asset group signal. Destructive remove_custom_conversion_goal Remove a custom conversion goal. Destructive remove_customer_asset Remove a customer asset. Destructive remove_customer_customizer Remove a customer customizer. Destructive remove_experiment_arm Remove an experiment arm. Destructive remove_keyword_plan_ad_group Remove a keyword plan ad group. Destructive remove_keyword_plan_ad_group_keyword Remove a keyword plan ad group keyword.

All 59 Google Ads tools →

Write tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about mutate_keyword_plan_campaign_keywords

What does the mutate_keyword_plan_campaign_keywords tool do? +

mutate_keyword_plan_campaign_keywords. It is categorised as a Write tool in the Google Ads MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on mutate_keyword_plan_campaign_keywords? +

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

What risk level is mutate_keyword_plan_campaign_keywords? +

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

Can I rate-limit mutate_keyword_plan_campaign_keywords? +

Yes. Add a rate_limit block to the mutate_keyword_plan_campaign_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 mutate_keyword_plan_campaign_keywords completely? +

Set action: deny in the PolicyLayer policy for mutate_keyword_plan_campaign_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 mutate_keyword_plan_campaign_keywords? +

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

Enforce policy on every Google Ads tool call.

Start from Google Ads, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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