TRELLO_GET_MEMBER_CUSTOM_STICKER

Retrieves a specific custom sticker by ID for a Trello member; returns only sticker data (not its usage on cards/boards), with optional field selection.

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-member-custom-sticker.md

WHAT IT DOES

What TRELLO_GET_MEMBER_CUSTOM_STICKER does on Trello

AI agents call TRELLO_GET_MEMBER_CUSTOM_STICKER 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 return for the custom sticker. Use 'all' (default) to return all fields, or provide a comma-separated list containing 'scaled' or 'url'.
`idMember`	string	—	The ID or username of the Trello member.
`idCustomSticker`	string	—	The ID of the custom sticker to retrieve.

Parameters from the server's own tool schema.

RISK

Why TRELLO_GET_MEMBER_CUSTOM_STICKER is rated Low

This tool performs a data retrieval operation with no capability to modify, delete, or execute actions. It fetches metadata about a custom sticker resource for a Trello member. The scope is limited to sticker information only, and the operation is read-only. Severity is low because disclosure of sticker metadata poses minimal security or business risk.

From the tool's definition Tool description states 'Retrieves a specific custom sticker by ID' and explicitly clarifies it 'returns only sticker data (not its usage on cards/boards)', indicating a query operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs TRELLO_GET_MEMBER_CUSTOM_STICKER 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_MEMBER_CUSTOM_STICKER, this is the rule to start with:

TRELLO_GET_MEMBER_CUSTOM_STICKER Allowed

TRELLO_GET_MEMBER_CUSTOM_STICKER 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_MEMBER_CUSTOM_STICKER": {}
  }
}

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_MEMBER_CUSTOM_STICKER call is checked against it from then on.

FAQ

Questions about TRELLO_GET_MEMBER_CUSTOM_STICKER

What does the TRELLO_GET_MEMBER_CUSTOM_STICKER tool do? +

Retrieves a specific custom sticker by ID for a Trello member; returns only sticker data (not its usage on cards/boards), with optional field selection. 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_MEMBER_CUSTOM_STICKER accept? +

TRELLO_GET_MEMBER_CUSTOM_STICKER accepts 3 parameters: fields, idMember, idCustomSticker. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on TRELLO_GET_MEMBER_CUSTOM_STICKER? +

Register the Trello MCP server in PolicyLayer and add a rule for TRELLO_GET_MEMBER_CUSTOM_STICKER: 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_MEMBER_CUSTOM_STICKER? +

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

Can I rate-limit TRELLO_GET_MEMBER_CUSTOM_STICKER? +

Yes. Add a rate_limit block to the TRELLO_GET_MEMBER_CUSTOM_STICKER 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_MEMBER_CUSTOM_STICKER completely? +

Set action: deny in the PolicyLayer policy for TRELLO_GET_MEMBER_CUSTOM_STICKER. 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_MEMBER_CUSTOM_STICKER? +

TRELLO_GET_MEMBER_CUSTOM_STICKER 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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