AI agents call list_email_attachments to retrieve information from Apple Mail MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Listing attachments retrieves information about email attachments without creating, modifying, deleting, or executing anything. This is a non-destructive data query operation. Confidence is slightly reduced (0.85 vs higher) due to empty description, but the tool name and server context strongly indicate a read operation.
From the tool's definition Tool name 'list_email_attachments' indicates retrieval of attachment metadata. No description provided, but sibling tools (get_email_thread, get_inbox_overview, export_emails) confirm this server performs read operations on email data.
Documented attack patterns abuse exactly the kind of access list_email_attachments gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Apple Mail MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_email_attachments:
{
"version": "1",
"default": "deny",
"tools": {
"list_email_attachments": {}
}
}list_email_attachments is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
list_email_attachments. It is categorised as a Read tool in the Apple Mail MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Apple Mail MCP Server MCP server in PolicyLayer and add a rule for list_email_attachments: 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 Apple Mail MCP Server. Nothing to install.
list_email_attachments 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_email_attachments 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_email_attachments. 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_email_attachments is provided by the Apple Mail MCP Server MCP server (patrickfreyer/apple-mail-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 26 Apple Mail MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
26 Apple Mail MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.