Get contact suggestions based on partial name or email
AI agents call get_contact_suggestions to retrieve information from MCP Calendar Assistant without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries contact data and returns suggestions as a read-only operation with no side effects. It does not create, modify, delete, or execute external operations. The blast radius of misuse is minimal—an AI agent could retrieve contact information but cannot cause financial, destructive, or operational harm through suggestions alone.
From the tool's definition Tool description states 'Get contact suggestions based on partial name or email' — a query operation that retrieves matching contact records without modifying or executing actions.
Attacks that exploit this kind of access
Get contact suggestions based on partial name or email. It is categorised as a Read tool in the MCP Calendar Assistant MCP Server, which means it retrieves data without modifying state.
Register the MCP Calendar Assistant MCP server in PolicyLayer and add a rule for get_contact_suggestions: 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 Calendar Assistant. Nothing to install.
get_contact_suggestions 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_suggestions 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_suggestions. 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_suggestions is provided by the MCP Calendar Assistant MCP server (momer17/mailmcp). 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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