Get attachment metadata (filename, size, contentType, index) for a specific email by UID. Does not download attachment content. Auto-connects if not already connected.
AI agents call get_attachments to retrieve information from Mcp Mail Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves metadata about email attachments without modifying, deleting, or executing anything. It has no destructive or side effects. The auto-connect feature does not change the classification as connection establishment is a prerequisite action, not the tool's primary function. Metadata retrieval of email properties is a classic Read operation with minimal blast radius.
From the tool's definition Tool description explicitly states it retrieves 'attachment metadata (filename, size, contentType, index)' and 'Does not download attachment content.' The verb 'get' and the metadata-only retrieval with no side effects confirm a read-only operation.
Attacks that exploit this kind of access
Get attachment metadata (filename, size, contentType, index) for a specific email by UID. Does not download attachment content. Auto-connects if not already connected. It is categorised as a Read tool in the Mcp Mail Server MCP Server, which means it retrieves data without modifying state.
Register the Mcp Mail Server MCP server in PolicyLayer and add a rule for get_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 Mcp Mail Server. Nothing to install.
get_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 get_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 get_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.
get_attachments is provided by the Mcp Mail Server MCP server (mcp-mail-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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