List all boards accessible to the authenticated Trello user. Returns boards the user is a member of. Archived boards are included when filter is set to
AI agents call trello_list_boards 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 information about Trello boards. It performs a read-only query that lists resources the user has access to. There is no creation, modification, deletion, or execution of external operations. The blast radius is minimal—exposure would allow an AI to discover board metadata but not manipulate boards or data.
From the tool's definition Tool name 'trello_list_boards' and description 'List all boards accessible to the authenticated Trello user' indicates data retrieval with no modification. The action is to enumerate and return existing boards without side effects.
Attacks that exploit this kind of access
List all boards accessible to the authenticated Trello user. Returns boards the user is a member of. Archived boards are included when filter is set to. 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 trello_list_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 MCP Server. Nothing to install.
trello_list_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 trello_list_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 trello_list_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.
trello_list_boards is provided by the Trello MCP Server MCP server (rdeprey/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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