vault_storeShippingAddress · Mailgent MCP Server MCP

WHAT IT DOES

What vault_storeShippingAddress does on Mailgent MCP Server

AI agents use vault_storeShippingAddress to create or update resources in Mailgent MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mailgent MCP Server environment.

WHY IT NEEDS A POLICY

Why vault_storeShippingAddress needs a policy

This tool writes (stores) data — specifically a shipping/mailing address — into an encrypted vault. It creates or modifies a credential record reversibly (it can be updated or deleted). No code execution, financial transaction, or irreversible destruction is involved. Severity is medium because misuse could expose or overwrite sensitive personal address information stored in a secure vault.

From the tool's definition Store a shipping / mailing address as an encrypted credential

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vault_storeShippingAddress Rate-limited

vault_storeShippingAddress stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "vault_storeShippingAddress": {
      "limits": [
        {
          "counter": "vault_storeshippingaddress_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mailgent MCP Server, so you can run agents against it safely.

FAQ

Questions about vault_storeShippingAddress

What does the vault_storeShippingAddress tool do? +

Store a shipping / mailing address as an encrypted credential. It is categorised as a Write tool in the Mailgent MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on vault_storeShippingAddress? +

Register the Mailgent MCP Server MCP server in PolicyLayer and add a rule for vault_storeShippingAddress: 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 Mailgent MCP Server. Nothing to install.

What risk level is vault_storeShippingAddress? +

vault_storeShippingAddress is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit vault_storeShippingAddress? +

Yes. Add a rate_limit block to the vault_storeShippingAddress 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.

How do I block vault_storeShippingAddress completely? +

Set action: deny in the PolicyLayer policy for vault_storeShippingAddress. 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.

What MCP server provides vault_storeShippingAddress? +

vault_storeShippingAddress is provided by the Mailgent MCP Server MCP server (loomal-ai/loomal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.