save_draft_reply_to_gmail · Gmail MCP Server MCP

WHAT IT DOES

What save_draft_reply_to_gmail does on Gmail MCP Server

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

WHY IT NEEDS A POLICY

Why save_draft_reply_to_gmail needs a policy

This tool creates/modifies email drafts reversibly—drafts can be edited, deleted, or discarded before sending. It does not send emails (which would be Execute/Financial), does not delete data irreversibly, and does not read/query data.

From the tool's definition Tool description states it "Saves a draft reply" which creates a new email draft artifact in Gmail. The sibling tool context (create_suggested_draft_reply, get_unread_emails) and server description confirm this operates on Gmail drafts via the Gmail API.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

save_draft_reply_to_gmail Rate-limited

save_draft_reply_to_gmail 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": {
    "save_draft_reply_to_gmail": {
      "limits": [
        {
          "counter": "save_draft_reply_to_gmail_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 Gmail MCP Server, so you can run agents against it safely.

FAQ

Questions about save_draft_reply_to_gmail

What does the save_draft_reply_to_gmail tool do? +

Saves a draft reply to a specific email in the user. It is categorised as a Write tool in the Gmail 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 save_draft_reply_to_gmail? +

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

What risk level is save_draft_reply_to_gmail? +

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

Can I rate-limit save_draft_reply_to_gmail? +

Yes. Add a rate_limit block to the save_draft_reply_to_gmail 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 save_draft_reply_to_gmail completely? +

Set action: deny in the PolicyLayer policy for save_draft_reply_to_gmail. 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 save_draft_reply_to_gmail? +

save_draft_reply_to_gmail is provided by the Gmail MCP Server MCP server (jbr90/gmail-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.