update-messenger-draft · Sidemail MCP Server MCP

WHAT IT DOES

What update-messenger-draft does on Sidemail MCP Server

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

WHY IT NEEDS A POLICY

Why update-messenger-draft needs a policy

This tool modifies an existing Messenger draft in Sidemail's system. Updates are Write-category operations because they change data reversibly. The severity is medium because misuse could modify drafts intended for communication, potentially leading to unintended messages being sent, but the damage is limited to draft state (not yet sent) and can be corrected by updating again.

From the tool's definition Tool name 'update-messenger-draft' and description 'Update a Messenger draft' indicate modification of existing data. The 'update' action is reversible and creates/modifies data rather than irreversibly deleting it or executing arbitrary code.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update-messenger-draft Rate-limited

update-messenger-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-messenger-draft": {
      "limits": [
        {
          "counter": "update-messenger-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 Sidemail MCP Server, so you can run agents against it safely.

FAQ

Questions about update-messenger-draft

What does the update-messenger-draft tool do? +

Update a Messenger draft (Sidemail Messenger API). It is categorised as a Write tool in the Sidemail 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-messenger-draft? +

Register the Sidemail MCP Server MCP server in PolicyLayer and add a rule for update-messenger-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 Sidemail MCP Server. Nothing to install.

What risk level is update-messenger-draft? +

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

Can I rate-limit update-messenger-draft? +

Yes. Add a rate_limit block to the update-messenger-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-messenger-draft completely? +

Set action: deny in the PolicyLayer policy for update-messenger-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-messenger-draft? +

update-messenger-draft is provided by the Sidemail MCP Server MCP server (sidemail/sidemail-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.