Remove an attachment from a Trello card.
AI agents call deleteAttachmentFromCard 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.
This tool permanently deletes an attachment from a card, which cannot be undone. While the blast radius is limited to a single attachment (not a full card or board), deletion is irreversible, placing it in the Destructive category rather than Write.
From the tool's definition Tool name 'deleteAttachmentFromCard' and description 'Remove an attachment from a Trello card' indicate irreversible deletion of data.
Attacks that exploit this kind of access
Remove an attachment from a Trello card. 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 deleteAttachmentFromCard: 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.
deleteAttachmentFromCard 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 deleteAttachmentFromCard 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 deleteAttachmentFromCard. 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.
deleteAttachmentFromCard is provided by the Trello MCP Server MCP server (semblancelabs/trello-mcp-server). 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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