deleteGroup

THE RISK

Critical Risk

Why deleteGroup needs a policy

This tool irreversibly deletes a group resource from the user's Pinata account. Deletion operations cannot be undone and represent permanent data loss. While the blast radius is scoped to a single group (not all data), the action is destructive in nature.

From the tool's definition Tool name is 'deleteGroup' with description 'Delete a group from your Pinata account by its ID'. The word 'Delete' combined with 'from your Pinata account' indicates irreversible removal of data/resources.

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

POLICY

How to control deleteGroup

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

policy.json

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

deleteGroup 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 Pinata MCP — 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

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Go deeper

Critical-risk tools in Pinata MCP → 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 deleteGroup

What does the deleteGroup tool do? +

Delete a group from your Pinata account by its ID. It is categorised as a Destructive tool in the Pinata MCP 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 deleteGroup? +

Register the Pinata MCP server in PolicyLayer and add a rule for deleteGroup: 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 Pinata MCP. Nothing to install.

What risk level is deleteGroup? +

deleteGroup 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 deleteGroup? +

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

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

deleteGroup is provided by the Pinata MCP server (pinatacloud/pinata-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Pinata MCP tool call.

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

CHECK YOUR STACK →