TRELLO_CONVERT_CHECKLIST_ITEM_TO_CARD
Converts a checklist item into a new card (useful for promoting a subtask), which inherits some properties from the item; this is irreversible via the API and offers no customization during conversion.
This record as markdown: /tools/trello/trello-convert-checklist-item-to-card.md
What TRELLO_CONVERT_CHECKLIST_ITEM_TO_CARD does on Trello
AI agents call TRELLO_CONVERT_CHECKLIST_ITEM_TO_CARD 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 |
|---|---|---|---|
idCard | string | — | The ID or short link of the card containing the checklist and the item to be converted. |
idCheckItem | string | — | The ID of the checklist item that will be converted into a new card. |
idChecklist | string | — | The ID of the checklist that contains the specific item to be converted to a card. |
Parameters from the server's own tool schema.
Why TRELLO_CONVERT_CHECKLIST_ITEM_TO_CARD is rated Critical
While the conversion itself is not a deletion, the description explicitly notes it is 'irreversible', meaning the original checklist item structure cannot be restored through API means. This constitutes an irreversible transformation of data that cannot be undone, fitting the Destructive category.
From the tool's definition Tool description states conversion is 'irreversible via the API' and converts a checklist item into a new card, fundamentally altering the structure of the original checklist item.
Attacks that exploit this kind of access
The rule that runs TRELLO_CONVERT_CHECKLIST_ITEM_TO_CARD 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_CONVERT_CHECKLIST_ITEM_TO_CARD, this is the rule to start with:
TRELLO_CONVERT_CHECKLIST_ITEM_TO_CARD 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_CONVERT_CHECKLIST_ITEM_TO_CARD call is checked against it from then on.
Questions about TRELLO_CONVERT_CHECKLIST_ITEM_TO_CARD
Converts a checklist item into a new card (useful for promoting a subtask), which inherits some properties from the item; this is irreversible via the API and offers no customization during conversion. 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_CONVERT_CHECKLIST_ITEM_TO_CARD accepts 3 parameters: idCard, idCheckItem, idChecklist. 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_CONVERT_CHECKLIST_ITEM_TO_CARD: 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_CONVERT_CHECKLIST_ITEM_TO_CARD 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_CONVERT_CHECKLIST_ITEM_TO_CARD 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_CONVERT_CHECKLIST_ITEM_TO_CARD. 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_CONVERT_CHECKLIST_ITEM_TO_CARD 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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