Delete a habit.
AI agents call ticktick_delete_habit to permanently remove resources in TickTick MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes a habit record, which cannot be undone. Deletion is an irreversible operation that destroys data. While the blast radius is somewhat limited (a single habit rather than all habits), deletion is categorically more severe than write or execute operations. This falls squarely into the Destructive category.
From the tool's definition Tool name contains 'delete' and description states 'Delete a habit.' The verb 'delete' indicates irreversible removal of data.
Attacks that exploit this kind of access
Delete a habit. It is categorised as a Destructive tool in the TickTick MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the TickTick MCP Server MCP server in PolicyLayer and add a rule for ticktick_delete_habit: 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 TickTick MCP Server. Nothing to install.
ticktick_delete_habit is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the ticktick_delete_habit 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 ticktick_delete_habit. 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.
ticktick_delete_habit is provided by the TickTick MCP Server MCP server (mostafasuliman/ticktick-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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