Get all contact lists for a team.
AI agents call get_contact_lists to retrieve information from XEM Email 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 existing contact list metadata without creating, modifying, deleting, or executing any operations. It has minimal blast radius as it only exposes information about contact lists that the authenticated user already has access to manage.
From the tool's definition The tool name 'get_contact_lists' and description 'Get all contact lists for a team' indicate a retrieval operation with no side effects. The verb 'Get' and the read-only nature of querying existing contact lists confirm this is a Read operation.
Attacks that exploit this kind of access
Get all contact lists for a team. It is categorised as a Read tool in the XEM Email MCP Server MCP Server, which means it retrieves data without modifying state.
Register the XEM Email MCP Server MCP server in PolicyLayer and add a rule for get_contact_lists: 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 XEM Email MCP Server. Nothing to install.
get_contact_lists 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_contact_lists 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_contact_lists. 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_contact_lists is provided by the XEM Email MCP Server MCP server (mailxem/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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