Get all contacts that appear to be organizers (have @acorncanada.org emails)
AI agents call get_organizer_contacts to retrieve information from CiviCRM 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 contact information filtered by email domain. It performs a read-only search operation with no side effects (no creation, modification, or deletion of data). However, severity is medium rather than low because organizer contact information may be sensitive operational data; exposure could inform targeting of key personnel or social engineering attacks.
From the tool's definition Tool name and description: 'Get all contacts that appear to be organizers (have @acorncanada.org emails)' — uses 'Get', which retrieves/queries data without modification.
Attacks that exploit this kind of access
Get all contacts that appear to be organizers (have @acorncanada.org emails). It is categorised as a Read tool in the CiviCRM MCP Server MCP Server, which means it retrieves data without modifying state.
Register the CiviCRM MCP Server MCP server in PolicyLayer and add a rule for get_organizer_contacts: 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 CiviCRM MCP Server. Nothing to install.
get_organizer_contacts 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_organizer_contacts 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_organizer_contacts. 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_organizer_contacts is provided by the CiviCRM MCP Server MCP server (johncallhub/civicrm-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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