Get messages from a specific conversation.
AI agents call get_messages to retrieve information from iMessage 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 historical message data from a conversation without creating, modifying, or deleting any content. It is a straightforward read operation querying the local messages database. Severity is low because the impact is limited to information disclosure of messages already stored on the user's device, with no external effects or destructive potential.
From the tool's definition Tool description states 'Get messages from a specific conversation' — a retrieval operation with no modification. Server description confirms the tool enables 'reading...
Attacks that exploit this kind of access
Get messages from a specific conversation. It is categorised as a Read tool in the iMessage MCP Server MCP Server, which means it retrieves data without modifying state.
Register the iMessage MCP Server MCP server in PolicyLayer and add a rule for get_messages: 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 iMessage MCP Server. Nothing to install.
get_messages 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_messages 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_messages. 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_messages is provided by the iMessage MCP Server MCP server (viraatdas/imessage-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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