prepare_reply_all

Get pre-populated reply-all data: to + cc (all original recipients except self), subject (Re:), quoted body.

SERVERTrekMail MCP Server SOURCEtrekmail/mcp-server

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/trekmail-mcp-server/prepare-reply-all.md

WHAT IT DOES

What prepare_reply_all does on TrekMail MCP Server

AI agents call prepare_reply_all to retrieve information from TrekMail MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why prepare_reply_all is rated Low

This tool retrieves data from an existing email message and prepares it for user review before sending. It performs no write, delete, execute, or financial operations. The output is informational only—the user must still compose and send the reply. This is purely a Read category tool with minimal security risk.

From the tool's definition Tool description states it 'Get[s] pre-populated reply-all data' with no modification, deletion, or execution of external operations.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs prepare_reply_all safely

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

prepare_reply_all Allowed

prepare_reply_all is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "prepare_reply_all": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about prepare_reply_all

What does the prepare_reply_all tool do? +

Get pre-populated reply-all data: to + cc (all original recipients except self), subject (Re:), quoted body. It is categorised as a Read tool in the TrekMail MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on prepare_reply_all? +

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

What risk level is prepare_reply_all? +

prepare_reply_all is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit prepare_reply_all? +

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

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

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

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