TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT

Retrieves a specific attachment from a Trello card by card ID and attachment ID.

SERVERTrello SOURCEmcp-server-trello

Low RISK CLASS

Category Read

Parameters 30 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/trello/trello-get-cards-attachments-by-id-card-by-id-attachment.md

WHAT IT DOES

What TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT does on Trello

AI agents call TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT to retrieve information from Trello without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`fields`	string	—	Specifies the fields to be returned for the attachment. Use 'all' to retrieve all available fields, or provide a comma-separated list of specific fields. Valid
`idCard`	string	—	The unique identifier or the short link of the Trello card from which to retrieve the attachment.
`idAttachment`	string	—	The unique identifier of the specific attachment to be retrieved from the card.

Parameters from the server's own tool schema.

RISK

Why TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT is rated Low

This tool fetches existing data (an attachment) from a Trello card without creating, modifying, deleting, or executing any operations. It is a straightforward read operation with minimal blast radius—misuse would expose metadata or file contents already authorized in Trello, not corrupt or destroy data.

From the tool's definition Tool name and description indicate retrieval: 'Retrieves a specific attachment from a Trello card by card ID and attachment ID.' The verb 'Retrieves' and the GET semantic in the tool name confirm query-only semantics with no mutation or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT 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_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT, this is the rule to start with:

TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT Allowed

TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT

What does the TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT tool do? +

Retrieves a specific attachment from a Trello card by card ID and attachment ID. It is categorised as a Read tool in the Trello MCP Server, which means it retrieves data without modifying state.

What parameters does TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT accept? +

TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT accepts 3 parameters: fields, idCard, idAttachment. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT? +

Register the Trello MCP server in PolicyLayer and add a rule for TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT: 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_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT? +

TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT? +

Yes. Add a rate_limit block to the TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT 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_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT completely? +

Set action: deny in the PolicyLayer policy for TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT. 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_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT? +

TRELLO_GET_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT 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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