Create a reply-all draft to a mail message. Saves to the Drafts folder for review before sending. Thread preservation: the original message is automatically appended below your reply, with its original HTML formatting (signatures, inline images, prior quoted thread) intact - exactly the way clicking
AI agents use create-reply-all-draft to create or update resources in Outlook OAuth MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Outlook OAuth MCP Server environment.
This tool creates a new draft email message without sending it, which is a Write operation (creates data reversibly). It does not execute external code, delete data, or move money. The blast radius is medium because a compromised agent could compose misleading or malicious reply-all messages to multiple recipients, though the draft must be reviewed before sending, providing a safety gate.
From the tool's definition Tool name and description explicitly state 'create-reply-all-draft' and 'Saves to the Drafts folder' - this creates a new email draft message, a reversible modification to user data.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
Create a reply-all draft to a mail message. Saves to the Drafts folder for review before sending. Thread preservation: the original message is automatically appended below your reply, with its original HTML formatting (signatures, inline images, prior quoted thread) intact - exactly the way clicking. It is categorised as a Write tool in the Outlook OAuth MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Outlook OAuth MCP Server MCP server in PolicyLayer and add a rule for create-reply-all-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 Outlook OAuth MCP Server. Nothing to install.
create-reply-all-draft is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create-reply-all-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.
Set action: deny in the PolicyLayer policy for create-reply-all-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.
create-reply-all-draft is provided by the Outlook OAuth MCP Server MCP server (leonine-studios/useful-outlook-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →