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com.rattlesnakesbymail/rattlesnakesbymail

by rattlesnakesbymail.com · remote · no sign-in to list tools · v0.1.0 · published by com.rattlesnakesbymail

Dated, sourced claims about AI crawlers and agents, offered as MCP tools.

Changes · 3
CompareRegistry entry

5 tools: 3 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 rattlesnakesbymail https://rattlesnakesbymail.com/mcp

Tools

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

5 tools

Changes things 3Claude Code: ask
  • askMatch a free-text question against the claims published on Rattlesnakes By Mail, and return the matching claims, or no match when no published claim covers the question.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
    Match a free-text question against the claims published on Rattlesnakes By Mail, and return the matching claims, or no match when no published claim covers the question. Every question sent to ask is recorded, and a recorded question may be published on the public questions page at Rattlesnakes By Mail. Do not send private or identifying text to ask.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • identify_user_agentMatch an unrecognized raw User-Agent header against the crawlers documented on Rattlesnakes By Mail, and return the matched crawler plus instructions for verifying the request.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
    Match an unrecognized raw User-Agent header against the crawlers documented on Rattlesnakes By Mail, and return the matched crawler plus instructions for verifying the request. Use identify_user_agent when the crawler behind the User-Agent header is not yet known.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • submit_noteSubmit a correction or note about a claim, an entity, or a question on Rattlesnakes By Mail.No findings

    Why it is in this group

    • The name "submit_note" says "submit": a word for a change.
    Description, as the server wrote it
    Submit a correction or note about a claim, an entity, or a question on Rattlesnakes By Mail. Requires a client token issued out of band by the publisher. Every note is stored as pending, and an editor reviews every pending note before publication.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
Only reads 2Claude Code: allow
  • list_changesList recorded changes to claims on Rattlesnakes By Mail, newest first, with the change date and the affected crawler.No findings

    Why it is in this group

    • The name "list_changes" says "list": a word for reading.
    Description, as the server wrote it
    List recorded changes to claims on Rattlesnakes By Mail, newest first, with the change date and the affected crawler. Filter by date with since, by crawler with entity, or by both. Use list_changes to detect crawler policy updates published after a given date.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • lookup_crawlerLook up a documented crawler on Rattlesnakes By Mail by name, slug, or user-agent string, and return identity fields, current claims, publication dates, and evidence URLs.No findings

    Why it is in this group

    • The name "lookup_crawler" says "lookup": a word for reading.
    Description, as the server wrote it
    Look up a documented crawler on Rattlesnakes By Mail by name, slug, or user-agent string, and return identity fields, current claims, publication dates, and evidence URLs. Use lookup_crawler when the crawler is already named, or when the user agent is already known to belong to a documented crawler.

    Annotations the server declares

    • readOnlyHint: 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 0.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http rattlesnakesbymail https://rattlesnakesbymail.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__rattlesnakesbymail__lookup_crawler",
      "mcp__rattlesnakesbymail__list_changes"
    ],
    "ask": [
      "mcp__rattlesnakesbymail__identify_user_agent",
      "mcp__rattlesnakesbymail__ask",
      "mcp__rattlesnakesbymail__submit_note"
    ],
    "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 rattlesnakesbymail. Review it before you use it.