create_reply_draft

SERVERMicrosoft MCP SOURCE0xka13b/microsoft-mcps

Medium RISK CLASS

Category Write

Parameters 42 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/0xka13b-microsoft-mcps/create-reply-draft.md

WHAT IT DOES

What create_reply_draft does on Microsoft MCP

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

Parameter	Type	Required	Description
`cc`	array	—	Additional CC recipients to add to the reply
`body`	string	Yes	Your reply text, inserted above the quoted original message
`email_id`	string	Yes	Message ID being replied to
`reply_all`	boolean	—	Reply to all recipients of the original (sender + to + cc) instead of just the sender. Defaults to false.

Parameters from the server's own tool schema.

RISK

Why create_reply_draft is rated Medium

This tool creates a new email draft (reversible modification of user mailbox state) but does not execute the irreversible action of sending it. It falls under Write rather than Execute because drafting is a data creation operation with no external side effects until explicitly sent by the user.

From the tool's definition Tool description states it 'Draft[s] a reply' and produces 'an editable draft (in Drafts)' — this is reversible creation of email content.

Risk signalsAccepts raw HTML/template content (body)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_reply_draft safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Microsoft MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_reply_draft, this is the rule to start with:

create_reply_draft Rate-limited

create_reply_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": {
    "create_reply_draft": {
      "limits": [
        {
          "counter": "create_reply_draft_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Microsoft MCP, apply this rule, and every create_reply_draft call is checked against it from then on.

FAQ

Questions about create_reply_draft

What does the create_reply_draft tool do? +

Draft a reply to an existing email, kept inside the original conversation thread. Produces an editable draft (in Drafts) that inherits the conversation, the 'RE:' subject, threading headers, and quoted history — review and send it later with send_email or via Outlook. Use this instead of create_email_draft whenever responding to a message. It is categorised as a Write tool in the Microsoft MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does create_reply_draft accept? +

create_reply_draft accepts 4 parameters: cc, body, email_id, reply_all. Required: body, email_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on create_reply_draft? +

Register the Microsoft MCP server in PolicyLayer and add a rule for create_reply_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 Microsoft MCP. Nothing to install.

What risk level is create_reply_draft? +

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

Can I rate-limit create_reply_draft? +

Yes. Add a rate_limit block to the create_reply_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 create_reply_draft completely? +

Set action: deny in the PolicyLayer policy for create_reply_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 create_reply_draft? +

create_reply_draft is provided by the Microsoft MCP server (0xka13b/microsoft-mcps). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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