Get all boards accessible to the current user. This is the starting point for exploring your Trello workspace.
AI agents call getUserBoards 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.
This tool retrieves data about boards without modifying, deleting, or executing any operations. It is purely informational and serves as a navigation/discovery endpoint. The blast radius of misuse is minimal—an agent could only enumerate accessible boards, not modify or destroy them.
From the tool's definition Tool name is 'getUserBoards' and description states 'Get all boards accessible to the current user' — uses the verb 'Get' which is a read operation with no side effects.
Attacks that exploit this kind of access
Get all boards accessible to the current user. This is the starting point for exploring your Trello workspace. It is categorised as a Read tool in the Trello MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Trello MCP Server MCP server in PolicyLayer and add a rule for getUserBoards: 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.
getUserBoards 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 getUserBoards 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 getUserBoards. 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.
getUserBoards is provided by the Trello MCP Server MCP server (semblancelabs/trello-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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