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Chorus

by choruskeepsake.com · remote · no sign-in to list tools · v1.0.0 · published by com.choruskeepsake

Gathers voice, video and written messages from a group into one book for one person.

Final · 1Changes · 9
CompareRegistry entry

14 tools: 1 do something that can't be undone, 9 change things and 4 only read.

Scanned Oct 21, 2026

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

claude mcp add --transport http chorus https://choruskeepsake.com/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • Warntheir_own_link

    The server marks "their_own_link" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "their_own_link" says "link": a word for a change.

    What this check looks for
  • Warnorder

    The server marks "order" as not read-only (readOnlyHint: false), and its words say it reads.

    Matched text

    annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":true}; The description's first verb is "return": a word for reading.

    What this check looks for

Tools

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

14 tools

Can't be undone 1Claude Code: ask
  • send_it_outEmails the invitation once to every person added with an address, and hands back a tap that opens WhatsApp, a text or a mail draft with the message and the link already written, fo…No findings

    Why it is in this group

    • The name "send_it_out" says "send": a word for sending, and what is sent cannot be taken back.
    Description, as the server wrote it
    Emails the invitation once to every person added with an address, and hands back a tap that opens WhatsApp, a text or a mail draft with the message and the link already written, for the family group and for anyone with no address. Nobody is written to twice by this tool, and a caller sends a limited number of emails a day.

    Annotations the server declares

    • title: Send the link to everyone, and get the tap that puts it in a group chat.
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Changes things 9Claude Code: ask
  • add_peopleRecords who is expected to record.No findings

    Why it is in this group

    • The name "add_people" says "add": a word for a change.
    Description, as the server wrote it
    Records who is expected to record. Somebody with an email address can be written to by send_it_out and reminded by chase_the_missing; somebody with only a name is reached in a group chat and their name is what the chase reads out. Adding a person sends nothing on its own.

    Annotations the server declares

    • title: Name the people the book is waiting on, with an address where there is one.
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • change_the_bookChanges the settings the organiser can change on the site: the day collecting stops, the questions people are asked, whether they may send voice, video or writing, and which one th…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
    Changes the settings the organiser can change on the site: the day collecting stops, the questions people are asked, whether they may send voice, video or writing, and which one the button offers first. Nobody is told about a change.

    Annotations the server declares

    • title: Change the closing date, the questions, or what people may send.
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • chase_the_missingWorks out who is still out, emails a reminder to the ones with an address, and hands back a message naming them, ready for the group chat and ready for one person.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
    Works out who is still out, emails a reminder to the ones with an address, and hands back a message naming them, ready for the group chat and ready for one person. A person gets at most one reminder a day and three in all, and never one after they have asked to stop.

    Annotations the server declares

    • title: Remind the people who have not recorded yet.
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • close_collectingStops new messages arriving and returns the final counts with the gift link.No findings

    Why it is in this group

    • The name "close_collecting" says "close": a word for a change.
    Description, as the server wrote it
    Stops new messages arriving and returns the final counts with the gift link. Nothing is deleted and nothing is finished; it can be reopened.

    Annotations the server declares

    • title: Stop collecting, and get the link that plays every message.
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • find_my_bookCall it with the email address the book belongs to and Chorus sends that address a six digit code, returning nothing about the books.No findings

    Why it is in this group

    • The name "find_my_book" says "find": a word for reading.
    • The description's first verb is "call": a word for a change.
    • The input takes a statement or command to run (input.code), which can change anything it can reach.
    Description, as the server wrote it
    Call it with the email address the book belongs to and Chorus sends that address a six digit code, returning nothing about the books. Call it again with the address and the code and it hands back every book on that account with its handle. Holding the mailbox is the proof, so a book cannot be found by guessing an address.

    Annotations the server declares

    • title: Get back into a book when the handle is gone.
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • orderReturns a payment link for one of the three ways to keep the book: voices, book, or keepsake, which is the printed hardcover.1 finding

    Why it is in this group

    • The description's first verb is "return": a word for reading.
    • The server marks it as not read-only (readOnlyHint: false).

    Findings

    • Warn

      The server marks "order" as not read-only (readOnlyHint: false), and its words say it reads.

      Matched text

      annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":true}; The description's first verb is "return": a word for reading.

      What this check looks for
    Description, as the server wrote it
    Returns a payment link for one of the three ways to keep the book: voices, book, or keepsake, which is the printed hardcover. Stripe shows the price and takes the card and, on the keepsake, the postal address. This tool never takes a card and never names a price. Read the prices from https://choruskeepsake.com/llms.txt when the person asks what it costs.

    Annotations the server declares

    • title: Hand the organiser a payment page for the option they chose.
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • reopen_collectingReopens a book that was closed or whose date ran out, and returns the collecting link to send round again.No findings

    Why it is in this group

    • The name "reopen_collecting" says "reopen": a word for a change.
    Description, as the server wrote it
    Reopens a book that was closed or whose date ran out, and returns the collecting link to send round again.

    Annotations the server declares

    • title: Let messages in again, with a new closing date if there is one.
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • start_bookStarts a book of voice, video and written messages and returns the single link the organiser sends to everyone taking part.No findings

    Why it is in this group

    • The name "start_book" says "start": a word for a change.
    • The input takes a statement or command to run (input.code), which can change anything it can reach.
    Description, as the server wrote it
    Starts a book of voice, video and written messages and returns the single link the organiser sends to everyone taking part. The book is for one person or a couple, or it is called by a title when it is for nobody in particular: a family’s recipes, a class’s year, a team’s goodbye. Start the simplest book that fits what the person said and hand over the link straight away. Gathering is free and the people recording need no app and no account. Use this as soon as somebody wants to collect messages from a group, whether or not there is an occasion. The first call emails the organiser a six digit code and makes nothing. Call it again with the same details and the code, and the book is made in their account.

    Annotations the server declares

    • title: Start a Chorus book, and get the one link to forward.
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
Only reads 4Claude Code: allow
  • book_statusReturns who is in with their name and relationship, how many voices, videos and written messages have landed, how many carried a photo, who the organiser is still waiting on, and t…No findings

    Why it is in this group

    • The name "book_status" says "status": a word for reading.
    Description, as the server wrote it
    Returns who is in with their name and relationship, how many voices, videos and written messages have landed, how many carried a photo, who the organiser is still waiting on, and the days left before collecting stops.

    Annotations the server declares

    • title: Who has recorded, who is still out, and how long is left.
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • order_statusReturns whether the book has been paid for and which option was bought, and on a printed one the stage the printer is at with the tracking.No findings

    Why it is in this group

    • The name "order_status" says "status": a word for reading.
    Description, as the server wrote it
    Returns whether the book has been paid for and which option was bought, and on a printed one the stage the printer is at with the tracking.

    Annotations the server declares

    • title: Whether it is paid, and where the printer is with it.
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • read_the_messagesReturns every message with who left it and what they said.No findings

    Why it is in this group

    • The name "read_the_messages" says "read": a word for reading.
    Description, as the server wrote it
    Returns every message with who left it and what they said. A written message reads back whatever was paid; a voice or a video is written out on the tier that includes the words, and where it is not, the tool says so rather than half-answering.

    Annotations the server declares

    • title: What people said, written out.
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

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 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http chorus https://choruskeepsake.com/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__chorus__get_links",
      "mcp__chorus__book_status",
      "mcp__chorus__read_the_messages",
      "mcp__chorus__order_status"
    ],
    "ask": [
      "mcp__chorus__start_book",
      "mcp__chorus__add_people",
      "mcp__chorus__send_it_out",
      "mcp__chorus__chase_the_missing",
      "mcp__chorus__find_my_book",
      "mcp__chorus__change_the_book",
      "mcp__chorus__their_own_link",
      "mcp__chorus__close_collecting",
      "mcp__chorus__reopen_collecting",
      "mcp__chorus__order"
    ],
    "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 chorus. Review it before you use it.