TRELLO_DELETE_MEMBER_BOARD_BACKGROUND
Permanently deletes a specific custom board background belonging to the specified Trello member; this operation cannot be undone.
This record as markdown: /tools/trello/trello-delete-member-board-background.md
What TRELLO_DELETE_MEMBER_BOARD_BACKGROUND does on Trello
AI agents call TRELLO_DELETE_MEMBER_BOARD_BACKGROUND 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.
| Parameter | Type | Required | Description |
|---|---|---|---|
idMember | string | — | ID or username of the Trello member; 'me' refers to the authenticated user. |
idBoardBackground | string | — | ID of the custom board background to delete. |
Parameters from the server's own tool schema.
Why TRELLO_DELETE_MEMBER_BOARD_BACKGROUND is rated Critical
This tool irreversibly deletes user-created board background customizations. Although the blast radius is limited to cosmetic board settings (not critical data or financial impact), the permanent and unrecoverable nature of the deletion classifies it as Destructive rather than Write.
From the tool's definition Tool description explicitly states: "Permanently deletes a specific custom board background belonging to the specified Trello member; this operation cannot be undone." The keywords "Permanently deletes" and "cannot be undone" directly indicate irreversible…
Attacks that exploit this kind of access
The rule that runs TRELLO_DELETE_MEMBER_BOARD_BACKGROUND safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Trello, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For TRELLO_DELETE_MEMBER_BOARD_BACKGROUND, this is the rule to start with:
TRELLO_DELETE_MEMBER_BOARD_BACKGROUND is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Trello, apply this rule, and every TRELLO_DELETE_MEMBER_BOARD_BACKGROUND call is checked against it from then on.
Questions about TRELLO_DELETE_MEMBER_BOARD_BACKGROUND
Permanently deletes a specific custom board background belonging to the specified Trello member; this operation cannot be undone. 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.
TRELLO_DELETE_MEMBER_BOARD_BACKGROUND accepts 2 parameters: idMember, idBoardBackground. The full parameter table on this page comes from the server's own tool schema.
Register the Trello MCP server in PolicyLayer and add a rule for TRELLO_DELETE_MEMBER_BOARD_BACKGROUND: 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.
TRELLO_DELETE_MEMBER_BOARD_BACKGROUND 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 TRELLO_DELETE_MEMBER_BOARD_BACKGROUND 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 TRELLO_DELETE_MEMBER_BOARD_BACKGROUND. 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.
TRELLO_DELETE_MEMBER_BOARD_BACKGROUND is provided by the Trello MCP server (mcp-server-trello). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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