AI agents call get_other_contacts to retrieve information from MCP Google Contacts Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The naming convention 'get_' and placement among other Read-category operations (get_contact, list_contacts, search_contacts) strongly suggests this is a data retrieval tool. While the description is empty, the semantic structure is clear.
From the tool's definition Tool name 'get_other_contacts' combined with sibling Read operations (get_contact, list_contacts, search_contacts) and server description indicating contact management operations. The tool retrieves contacts data without modification.
Documented attack patterns abuse exactly the kind of access get_other_contacts gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Google Contacts Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_other_contacts:
{
"version": "1",
"default": "deny",
"tools": {
"get_other_contacts": {}
}
}get_other_contacts is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_other_contacts. It is categorised as a Read tool in the MCP Google Contacts Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Google Contacts Server MCP server in PolicyLayer and add a rule for get_other_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 MCP Google Contacts Server. Nothing to install.
get_other_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_other_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_other_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_other_contacts is provided by the MCP Google Contacts Server MCP server (rayanzaki/mcp-google-contacts-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 9 MCP Google Contacts Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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9 MCP Google Contacts Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.