List members of a specific group in Planning Center Groups. Args: - group_id (string): The group ID (get this from pco_list_groups) - filter (string, optional): Filter members —
AI agents call pco_list_group_members to retrieve information from Planning Center Online MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves group membership data from Planning Center Online without modifying, deleting, or executing any operations. It is a straightforward read operation with minimal risk—listing existing group members is informational only. Low severity because exposure would allow viewing group composition but not financial transactions, code execution, or destructive actions.
From the tool's definition Tool name 'pco_list_group_members' and description 'List members of a specific group' indicate a retrieval operation with no side effects. The args (group_id, optional filter) are query parameters for filtering results.
Attacks that exploit this kind of access
List members of a specific group in Planning Center Groups. Args: - group_id (string): The group ID (get this from pco_list_groups) - filter (string, optional): Filter members —. It is categorised as a Read tool in the Planning Center Online MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Planning Center Online MCP Server MCP server in PolicyLayer and add a rule for pco_list_group_members: 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 Planning Center Online MCP Server. Nothing to install.
pco_list_group_members 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 pco_list_group_members 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 pco_list_group_members. 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.
pco_list_group_members is provided by the Planning Center Online MCP Server MCP server (tracsoftllc/pco-mcp). 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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