Retrieve a list of boards for the authenticated user. Use this tool to get an overview of available boards or to search for specific ones using filters.
AI agents call get_boards 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 fetches/lists Trello boards for an authenticated user. It is a read-only operation that retrieves information without creating, modifying, deleting, or executing any external operations. The low severity reflects minimal blast radius from misuse—an AI agent could at most enumerate available boards, which is a low-risk information disclosure.
From the tool's definition Tool name 'get_boards' and description 'Retrieve a list of boards' explicitly indicates data retrieval with 'no side effects' - it queries existing Trello boards without modification or deletion.
Documented attack patterns abuse exactly the kind of access get_boards 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_boards:
{
"version": "1",
"default": "deny",
"tools": {
"get_boards": {}
}
}get_boards is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Retrieve a list of boards for the authenticated user. Use this tool to get an overview of available boards or to search for specific ones using filters. 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_boards: 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_boards 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_boards 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_boards. 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_boards 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.