reminders.delete_list

THE RISK

Critical Risk

Why reminders.delete_list needs a policy

This tool permanently deletes a reminder list and potentially all reminders within it (when force=true), which is an irreversible destructive action. The blast radius is high because an entire list with multiple reminders can be wiped in a single call.

From the tool's definition 'Delete a reminder list' and 'Fails if the list has reminders unless force is true' — irreversibly removes a reminder list and all its contents when force=true

Documented attack patterns abuse exactly the kind of access reminders.delete_list gives an agent:

POLICY

How to control reminders.delete_list

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

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "reminders.delete_list"
  ]
}

reminders.delete_list 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 Orchard — 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 Orchard tools

Destructive files.trash Move a file or folder to the Trash (reversible delete). Path must be under home directory. Destructive keynote.remove_slide Delete a slide from a Keynote presentation. Destructive numbers.remove_sheet Remove a sheet from a Numbers spreadsheet. Destructive reminders.delete_reminder Delete a reminder. Destructive files.move Move or rename files and folders. Supports batch operations for mass renaming. All paths m Execute keynote.export Export a Keynote presentation to PDF, PowerPoint, PNG, or JPEG. Write files.copy Copy a file or folder to a new location. Both paths must be under home directory. Write keynote.reorder_slides Move a slide from one position to another in a Keynote presentation.

All 65 Orchard tools →

Destructive tools on other servers

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Go deeper

Critical-risk tools in Orchard → 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 reminders.delete_list

What does the reminders.delete_list tool do? +

Delete a reminder list. Fails if the list has reminders unless force is true. It is categorised as a Destructive tool in the Orchard 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 reminders.delete_list? +

Register the Orchard MCP server in PolicyLayer and add a rule for reminders.delete_list: 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 Orchard. Nothing to install.

What risk level is reminders.delete_list? +

reminders.delete_list 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 reminders.delete_list? +

Yes. Add a rate_limit block to the reminders.delete_list 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 reminders.delete_list completely? +

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

reminders.delete_list is provided by the Orchard MCP server (l22-io/orchard-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Orchard tool call.

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

CHECK YOUR STACK →