AI agents call delete_board to permanently remove resources in Trello MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deleting a board is a destructive operation that cannot be undone and results in permanent loss of project management data. While not as severe as financial operations, the blast radius is high because an AI agent could accidentally or maliciously delete an entire board containing critical project information.
From the tool's definition Tool name 'delete_board' combined with description 'Delete a board' indicates irreversible deletion of a Trello board and all associated data (lists, cards, comments).
Documented attack patterns abuse exactly the kind of access delete_board gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Trello MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for delete_board:
{
"version": "1",
"default": "deny",
"hide": [
"delete_board"
]
}delete_board 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 board. It is categorised as a Destructive tool in the Trello MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Trello MCP Server MCP server in PolicyLayer and add a rule for delete_board: 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 MCP Server. Nothing to install.
delete_board 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_board 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_board. 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_board is provided by the Trello MCP Server MCP server (lzvxck/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 MCP Server, 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.
11 Trello MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.