TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD

Generates a new calendar key for the Trello board specified by idBoard, invalidating any previous key for that board.

SERVERTrello SOURCEmcp-server-trello

Medium RISK CLASS

Category Write

Parameters 10 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/trello/trello-add-boards-calendar-key-generate-by-id-board.md

WHAT IT DOES

What TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD does on Trello

AI agents use TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD to create or update resources in Trello, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Trello environment.

Parameter	Type	Required	Description
`idBoard`	string	—	The unique identifier of the Trello board for which to generate a calendar key.

Parameters from the server's own tool schema.

RISK

Why TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD is rated Medium

This tool creates a new credential (calendar key) and overwrites/invalidates the previous one. While it modifies access credentials rather than board data directly, it is reversible and represents a state change in the Trello board's configuration. This fits the Write category (creates/modifies data reversibly).

From the tool's definition Generates a new calendar key for the Trello board...invalidating any previous key

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD 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_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD, this is the rule to start with:

TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD Rate-limited

TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD": {
      "limits": [
        {
          "counter": "trello_add_boards_calendar_key_generate_by_id_board_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Trello, apply this rule, and every TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD call is checked against it from then on.

FAQ

Questions about TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD

What does the TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD tool do? +

Generates a new calendar key for the Trello board specified by idBoard, invalidating any previous key for that board. It is categorised as a Write tool in the Trello MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD accept? +

TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD accepts 1 parameter: idBoard. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD? +

Register the Trello MCP server in PolicyLayer and add a rule for TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_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. Nothing to install.

What risk level is TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD? +

TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD? +

Yes. Add a rate_limit block to the TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_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.

How do I block TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD completely? +

Set action: deny in the PolicyLayer policy for TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_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.

What MCP server provides TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD? +

TRELLO_ADD_BOARDS_CALENDAR_KEY_GENERATE_BY_ID_BOARD 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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