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RemoveDuplicates.org

by removeduplicates.org · remote · no sign-in to list tools · v1.0.1 · published by org.removeduplicates

Remove duplicate lines or CSV/TSV rows from text. Stateless: processed per call, never stored.

Deletes · 1
CompareRegistry entry

1 tool: 1 can delete or cancel things.

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 remove-duplicates https://removeduplicates.org/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • Warnremove_duplicates

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

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "remove_duplicates" says "remove": a word for removing or ending something.

    What this check looks for
  • Warnremove_duplicates

    The server marks "remove_duplicates" not destructive (destructiveHint: false), and its own name, description or input give the class "destructive".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "remove_duplicates" says "remove": a word for removing or ending something.

    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.

1 tool

Deletes or cancels 1Claude Code: deny
  • remove_duplicatesRemove duplicate lines from a text list, or duplicate rows from CSV/TSV text such as rows copied from Excel or Google Sheets.2 findings

    Why it is in this group

    • The name "remove_duplicates" says "remove": a word for removing or ending something.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    • The server marks it not destructive (destructiveHint: false), but an annotation never lowers a class.

    Findings

    • Warn

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

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "remove_duplicates" says "remove": a word for removing or ending something.

      What this check looks for
    • Warn

      The server marks "remove_duplicates" not destructive (destructiveHint: false), and its own name, description or input give the class "destructive".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "remove_duplicates" says "remove": a word for removing or ending something.

      What this check looks for
    Description, as the server wrote it
    Remove duplicate lines from a text list, or duplicate rows from CSV/TSV text such as rows copied from Excel or Google Sheets. Uses the same engine as removeduplicates.org and returns the cleaned text with counts. Stateless: the text is processed in memory for this call only and is never stored.

    Annotations the server declares

    • 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.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http remove-duplicates https://removeduplicates.org/mcp

Run in a terminal.

Claude Code permissions

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

.claude/settings.json
{
  "permissions": {
    "allow": [],
    "ask": [],
    "deny": [
      "mcp__remove-duplicates__remove_duplicates"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as remove-duplicates. Review it before you use it.