List events in Planning Center Calendar. Args: - filter (string, optional): Filter events —
AI agents call pco_list_calendar_events 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 retrieves calendar events from Planning Center Online without creating, modifying, or deleting any data. Listing operations are inherently read-only queries with minimal security risk unless the returned data itself is highly sensitive, but calendar events in a church/organization management context are typically informational.
From the tool's definition Tool name 'pco_list_calendar_events' and description 'List events in Planning Center Calendar' indicate a retrieval operation with no side effects. The filter parameter is for querying/filtering existing data, not modifying it.
Attacks that exploit this kind of access
List events in Planning Center Calendar. Args: - filter (string, optional): Filter events —. 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_calendar_events: 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_calendar_events 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_calendar_events 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_calendar_events. 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_calendar_events 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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