Delete a checkitem from a checklist. Use this tool to remove an item from a checklist.
AI agents call delete_checkitem to permanently remove resources in Trello — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The tool permanently removes a checkitem from a checklist. While the blast radius is limited to a single checklist item (lower than full card/board deletion), the action is irreversible and fits the Destructive category definition. Severity is medium because the impact is scoped to a single checklist item rather than larger structures, but the operation cannot be recovered without manual re-entry.
From the tool's definition Tool name explicitly uses 'delete' and description states 'remove an item from a checklist', which is an irreversible operation that cannot be undone.
Documented attack patterns abuse exactly the kind of access delete_checkitem gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Trello, and nothing reaches the server without passing your rules. This is the rule we recommend for delete_checkitem:
{
"version": "1",
"default": "deny",
"hide": [
"delete_checkitem"
]
}delete_checkitem disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
Free to start. No card required.
Delete a checkitem from a checklist. Use this tool to remove an item from a checklist. It is categorised as a Destructive tool in the Trello MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Trello MCP server in PolicyLayer and add a rule for delete_checkitem: 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 Trello. Nothing to install.
delete_checkitem 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 delete_checkitem 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 delete_checkitem. 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.
delete_checkitem is provided by the Trello MCP server (v4lheru/trello-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Trello, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
76 Trello tools catalogued and risk-classified — across an index of 43,000+ MCP servers.