Get cards assigned to a member. Use this to see what tasks a member is responsible for.
AI agents call get_member_cards to retrieve information from Trello without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about cards assigned to a specific member in Trello. It performs a read-only query operation with no side effects, data modification, or irreversible actions. The verb 'Get' and the phrase 'to see' confirm it is informational retrieval only. Severity is low because even if misused by an AI agent, it can only expose existing task assignments without causing harm.
From the tool's definition Tool name 'get_member_cards' and description 'Get cards assigned to a member. Use this to see what tasks a member is responsible for' indicate a query operation with no modification or deletion of data.
Documented attack patterns abuse exactly the kind of access get_member_cards gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Trello, and nothing reaches the server without passing your rules. This is the rule we recommend for get_member_cards:
{
"version": "1",
"default": "deny",
"tools": {
"get_member_cards": {}
}
}get_member_cards is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Get cards assigned to a member. Use this to see what tasks a member is responsible for. It is categorised as a Read tool in the Trello MCP Server, which means it retrieves data without modifying state.
Register the Trello MCP server in PolicyLayer and add a rule for get_member_cards: 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.
get_member_cards is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_member_cards 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 get_member_cards. 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.
get_member_cards is provided by the Trello MCP server (v4lheru/trello-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Trello, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
76 Trello tools catalogued and risk-classified — across an index of 43,000+ MCP servers.