update_draft · Enhanced MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_draft does on Enhanced MCP Server

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

WHY IT NEEDS A POLICY

Why update_draft needs a policy

This tool modifies existing email drafts, which is a reversible Write operation. It does not delete data (Destructive), execute arbitrary code (Execute), or involve financial transactions (Financial). The severity is medium because misuse could modify email drafts intended for important communications, but the effect is reversible through further edits or discarding the draft.

From the tool's definition Tool name 'update_draft' and description 'Update an existing draft' indicate modification of existing data. In the context of Gmail integration (a sibling service), drafts are email messages that are reversible and modifiable.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_draft Rate-limited

update_draft 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": {
    "update_draft": {
      "limits": [
        {
          "counter": "update_draft_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 Enhanced MCP Server, so you can run agents against it safely.

FAQ

Questions about update_draft

What does the update_draft tool do? +

Update an existing draft. It is categorised as a Write tool in the Enhanced 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 update_draft? +

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

What risk level is update_draft? +

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

Can I rate-limit update_draft? +

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

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

update_draft is provided by the Enhanced MCP Server MCP server (pbulbule13/mcpwithgoogle). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.