get_lists

THE RISK

Low Risk

Why get_lists needs a policy

This tool only retrieves information about lists in a board with no side effects. It falls squarely into the Read category as it queries existing data without creating, modifying, or deleting anything. The blast radius of misuse is minimal—an AI agent can only view list structures, not alter them. Severity is low because reading board structure poses no risk of data loss or unwanted changes.

From the tool's definition get_lists retrieves all lists in a Trello board without modifying data. The tool name and description indicate it performs a query operation ('Get all lists') to view workflow columns.

Documented attack patterns abuse exactly the kind of access get_lists gives an agent:

POLICY

How to control get_lists

PolicyLayer is an MCP gateway — it sits between your AI agents and Trello Desktop MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_lists:

policy.json

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

get_lists is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Trello Desktop MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Trello Desktop MCP tools

Write create_card Create a new card in a Trello list. Use this to add tasks, ideas, or items to your workflo Write move_card Move a card to a different list. Use this to change a card\ Write trello_add_comment Add a comment to a Trello card. Use this to add notes, updates, or discussions to cards. Write trello_create_list Create a new list in a Trello board. Use this to add workflow columns like Write update_card Update properties of an existing Trello card. Use this to change card details like name, d Read get_board_details Get detailed information about a specific Trello board, including its lists and cards. Use Read get_card Get detailed information about a specific Trello card, including its content, status, memb Read list_boards List all Trello boards accessible to the user. Use this to see all boards you have access

All 19 Trello Desktop MCP tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_lists

What does the get_lists tool do? +

Get all lists in a specific Trello board. Use this to see the workflow columns (like. It is categorised as a Read tool in the Trello Desktop MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_lists? +

Register the Trello Desktop 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 Desktop MCP. 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 Desktop MCP server (kocakli/trello-desktop-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Trello Desktop MCP tool call.

Start from Trello Desktop MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →