delete_folder

THE RISK

Critical Risk

Why delete_folder needs a policy

This tool performs irreversible deletion of data (folders, nested folders, and all contained messages). It meets the definition of Destructive category—actions that cannot be undone. The cascade deletion amplifies the blast radius.

From the tool's definition The tool description explicitly states 'Delete a folder by its ID. Deleting a folder will also delete nested folders and all the messages in referenced folders.' This is an irreversible deletion operation that cascades to nested content.

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

POLICY

How to control delete_folder

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

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_folder"
  ]
}

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

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

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Carbon Voice tools

Execute run_ai_action Run an AI Action (Prompt) for a message. You can run an AI Action for a message by its ID Execute run_ai_action_for_shared_link Run an AI Action (Prompt) for a shared link. You can run an AI Action for a shared link by Write add_attachments_to_message Add attachments to a message. In order to add attachments to a message, you must provide a Write create_conversation_message Sends a message to an existing conversation or any type with a conversation_id. Write create_direct_message Send a Direct Message (DM) to a User or a Group of Users. Write create_folder Create a new folder. Write create_voicememo_message Create a VoiceMemo Message. In order to create a VoiceMemo Message, you must provide a tra Write move_folder Move a folder by its ID. Move a Folder into another Folder or into a Workspace.

All 28 Carbon Voice tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in Carbon Voice → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about delete_folder

What does the delete_folder tool do? +

Delete a folder by its ID. Deleting a folder will also delete nested folders and all the messages in referenced folders. It is categorised as a Destructive tool in the Carbon Voice 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 delete_folder? +

Register the Carbon Voice MCP server in PolicyLayer and add a rule for delete_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 Carbon Voice. Nothing to install.

What risk level is delete_folder? +

delete_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 delete_folder? +

Yes. Add a rate_limit block to the delete_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 delete_folder completely? +

Set action: deny in the PolicyLayer policy for delete_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 delete_folder? +

delete_folder is provided by the Carbon Voice MCP server (phononx/cv-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 Carbon Voice tool call.

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

CHECK YOUR STACK →