get-lists · Trello MCP Server MCP: Risk & Policy

WHAT IT DOES

What get-lists does on Trello MCP Server

AI agents call get-lists to retrieve information from Trello MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why get-lists needs a policy

This tool retrieves Trello lists, which is a read operation that queries data without modification, creation, deletion, or execution of external code. It has minimal blast radius—an AI misuse would only expose or enumerate existing list data, not alter any state.

From the tool's definition Tool name 'get-lists' indicates data retrieval with no side effects. Server context confirms this is part of a Trello interaction suite where sibling tools explicitly perform mutations (create-card, archive-card, add-comment, add-label).

Attacks that exploit this kind of access

Questions about get-lists

What does the get-lists tool do? +

get-lists. It is categorised as a Read tool in the Trello MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get-lists? +

Register the Trello MCP Server MCP server in PolicyLayer and add a rule for get-lists: 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 MCP Server. Nothing to install.

What risk level is get-lists? +

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

Can I rate-limit get-lists? +

Yes. Add a rate_limit block to the get-lists 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 get-lists completely? +

Set action: deny in the PolicyLayer policy for get-lists. 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 get-lists? +

get-lists is provided by the Trello MCP Server MCP server (praveencs87/trello-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.