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Comet Messenger Service

by cometmessenger.delivery · remote · no sign-in to list tools · v2.0.0 · published by delivery.cometmessenger

Chicago same-day courier: live delivery quotes; account holders book and track runs.

Changes · 2
CompareRegistry entry

4 tools: 2 change things and 2 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http courier https://agents.cometmessenger.delivery/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

4 tools

Changes things 2Claude Code: ask
  • book_deliveryBook a same-day courier delivery on a Comet account.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Book a same-day courier delivery on a Comet account. Call first without confirm to get a preview (price, vehicle, pickup time); show it to your user; then call again with the same details and confirm=true to place the order. Returns the Comet order number. Needs the client's Comet account key (Authorization: Bearer cmt_...). Account holders get one from Comet at (312) 786-2288.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • recent_ordersThe account's latest orders with their status.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The account's latest orders with their status. Needs the client's Comet account key (Authorization: Bearer cmt_...). Account holders get one from Comet at (312) 786-2288.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • idempotentHint: true
Only reads 2Claude Code: allow
  • get_quotePrice a same-day courier delivery in the Chicago area with Comet Messenger Service (since 1976).No findings

    Why it is in this group

    • The name "get_quote" says "get": a word for reading.
    Description, as the server wrote it
    Price a same-day courier delivery in the Chicago area with Comet Messenger Service (since 1976). Returns live prices for Streak (fastest), Priority and Standard service, and the vehicle used. Quotes only - nothing is booked. Account holders' agents can book with book_delivery; everyone else books by calling (312) 786-2288 or at https://cometmessenger.delivery.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
    • idempotentHint: true
  • order_statusWhere an order on the account is: booked, picked up, delivered (with who signed and when) or cancelled.No findings

    Why it is in this group

    • The name "order_status" says "status": a word for reading.
    Description, as the server wrote it
    Where an order on the account is: booked, picked up, delivered (with who signed and when) or cancelled. Needs the client's Comet account key (Authorization: Bearer cmt_...). Account holders get one from Comet at (312) 786-2288.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • idempotentHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 2.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http courier https://agents.cometmessenger.delivery/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__courier__get_quote",
      "mcp__courier__order_status"
    ],
    "ask": [
      "mcp__courier__book_delivery",
      "mcp__courier__recent_orders"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as courier. Review it before you use it.