AI agents use update_keyword_plan_ad_group to create or update resources in Google Ads — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Google Ads environment.
The tool updates (modifies) keyword planning configuration for an ad group, which is a reversible change to advertising data. This is Write-category because it creates or modifies data without permanent deletion or financial movement. Confidence is 0.75 rather than higher because the description is empty, requiring inference from the name and server context.
From the tool's definition Tool name 'update_keyword_plan_ad_group' indicates modification of keyword planning data within an ad group; sibling tools include 'create_ad_group_customizer' and 'create_audience_signal' which are clearly Write operations; the server manages 'campaigns,…
Documented attack patterns abuse exactly the kind of access update_keyword_plan_ad_group gives an agent:
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 update_keyword_plan_ad_group:
{
"version": "1",
"default": "deny",
"tools": {
"update_keyword_plan_ad_group": {
"limits": [
{
"counter": "update_keyword_plan_ad_group_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}update_keyword_plan_ad_group 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.
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update_keyword_plan_ad_group. 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.
Register the Google Ads MCP server in PolicyLayer and add a rule for update_keyword_plan_ad_group: 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.
update_keyword_plan_ad_group is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the update_keyword_plan_ad_group 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.
Set action: deny in the PolicyLayer policy for update_keyword_plan_ad_group. 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.
update_keyword_plan_ad_group 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.
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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59 Google Ads tools catalogued and risk-classified — across an index of 43,000+ MCP servers.