List contacts for the authenticated user. Returns a paginated list of contacts.
AI agents call list_contacts to retrieve information from Google Contacts 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/queries contact data with no side effects, modification, or execution capability. The read-only nature and paginated list return pattern are consistent with data retrieval operations. Severity is low because contact information, while personal, is not financial or destructive in nature, and the scope is limited to the authenticated user's own contacts.
From the tool's definition Tool description states 'List contacts for the authenticated user. Returns a paginated list of contacts.' This is a retrieval operation with no modification. Server description confirms 'read-only access to personal contacts'.
Attacks that exploit this kind of access
List contacts for the authenticated user. Returns a paginated list of contacts. It is categorised as a Read tool in the Google Contacts MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Google Contacts MCP Server MCP server in PolicyLayer and add a rule for list_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 Google Contacts MCP Server. Nothing to install.
list_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 list_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 list_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.
list_contacts is provided by the Google Contacts MCP Server MCP server (offleashxyz/google-contacts-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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