Critical Risk →

gtm_folder

Performs all folder operations: create, get, list, update, remove, revert, entities, moveEntitiesToFolder. The

How to control gtm_folder ↓

AI agents call gtm_folder to permanently remove resources in Google Tag Manager MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

Critical Risk

The tool includes 'remove' (irreversible deletion of GTM folders) and 'revert' (potentially irreversible rollback of changes), alongside read/write operations. Per the rules, the most severe applicable category applies. Removing GTM folders could disrupt tracking infrastructure affecting analytics and marketing operations.

From the tool's definition Performs all folder operations: create, get, list, update, remove, revert, entities, moveEntitiesToFolder

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

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

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "gtm_folder"
  ]
}

gtm_folder disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

  1. Create a free account and register Google Tag Manager MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RESTRICT THIS TOOL →

Free to start. No card required.

Go deeper

What does the gtm_folder tool do? +

Performs all folder operations: create, get, list, update, remove, revert, entities, moveEntitiesToFolder. The. It is categorised as a Destructive tool in the Google Tag Manager MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on gtm_folder? +

Register the Google Tag Manager MCP Server MCP server in PolicyLayer and add a rule for gtm_folder: 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 Tag Manager MCP Server. Nothing to install.

What risk level is gtm_folder? +

gtm_folder is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit gtm_folder? +

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

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

gtm_folder is provided by the Google Tag Manager MCP Server MCP server (stape-io/google-tag-manager-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Google Tag Manager MCP Server tool call.

Deterministic rules across all 18 Google Tag Manager MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

18 Google Tag Manager MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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