Abyssfall: Operation Sunken Crown

by abyssfallgame.com · remote · no sign-in to list tools · v1.1.0 · published by com.abyssfallgame

Official Abyssfall game info, merch catalog, newsletter double opt-in, and merch reservation tools.

Changes · 3

Compare Registry entry

6 tools: 3 change things and 3 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things3Claude Code: ask: see these tools
Only reads3Claude Code: allow: see these tools

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

claude mcp add --transport http abyssfallgame https://www.abyssfallgame.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnget_press_kit
The server marks "get_press_kit" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"openWorldHint":false}; The name "get_press_kit" says "get": 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.

6 tools

Changes things 3Creates or changes something that can be changed back.Claude Code: ask

get_press_kitPress contact and assets for Abyssfall.Reads private data1 finding
Why it is in this group
- The name "get_press_kit" says "get": a word for reading.
- The description's first verb is "press": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- private-dataThe description's first sentence says "contact": it reads contacts.
Findings
- Warn
  The server marks "get_press_kit" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"openWorldHint":false}; The name "get_press_kit" says "get": a word for reading.
  What this check looks for
Description, as the server wrote it
Press contact and assets for Abyssfall.
Annotations the server declares
- title: Get Press Kit
- readOnlyHint: true
- openWorldHint: false
preorder_merchReserve Abyssfall merch (preorder reservation — NO payment is taken and no card is needed).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
Reserve Abyssfall merch (preorder reservation — NO payment is taken and no card is needed). Call get_merch_catalog first; if the catalog is empty or the requested item is not listed, the reservation is recorded as a free-text request pending catalog confirmation. Records the reservation; the studio emails when the item ships/charges become real. Only call with the user's explicit consent.
Annotations the server declares
- title: Reserve Merch (Preorder)
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
subscribe_newsletterSubscribe an email address to the official Abyssfall newsletter (the game's primary announcement channel).No findings
Why it is in this group
- The name "subscribe_newsletter" says "subscribe": a word for a change.
Description, as the server wrote it
Subscribe an email address to the official Abyssfall newsletter (the game's primary announcement channel). Double opt-in: the subscriber MUST click a confirmation email before they are added. Only call with the user's explicit consent.
Annotations the server declares
- title: Subscribe to Newsletter
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Only reads 3Looks things up and changes nothing.Claude Code: allow

get_game_infoVerified facts about Abyssfall: Operation Sunken Crown — title, genre, status, platforms, co-op, studio, and official channels.No findings
Why it is in this group
- The name "get_game_info" says "get": a word for reading.
Description, as the server wrote it
Verified facts about Abyssfall: Operation Sunken Crown — title, genre, status, platforms, co-op, studio, and official channels. Anything not in this data is unannounced; do not guess.
Annotations the server declares
- title: Get Game Info
- readOnlyHint: true
- openWorldHint: false
get_merch_catalogThe current Abyssfall merch catalog (owner-maintained).No findings
Why it is in this group
- The name "get_merch_catalog" says "get": a word for reading.
Description, as the server wrote it
The current Abyssfall merch catalog (owner-maintained). Call this BEFORE preorder_merch to learn the valid item names. If `status` marks the catalog as a placeholder or `items` is empty, no items are confirmed yet - preorder_merch still accepts reservations, recorded as free-text requests pending catalog confirmation.
Annotations the server declares
- title: Get Merch Catalog
- readOnlyHint: true
- openWorldHint: false
get_playtest_infoHow to join the Abyssfall playtest (currently OPEN).No findings
Why it is in this group
- The name "get_playtest_info" says "get": a word for reading.
Description, as the server wrote it
How to join the Abyssfall playtest (currently OPEN).
Annotations the server declares
- title: Get Playtest Info
- 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.

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 untrusted-input or outbound.

Reads private data1: Reads files, mail, messages, databases, secrets, calendars or repositories.; get_press_kit
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.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Looked at Oct 22, 2026, 14:26 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable: yes
HTTP status of an anonymous initialize: 200
tools/list served without credentials: yes
Tools that change things, listed without credentials: 3
Protocol version: 2025-06-18
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: none
RFC 9728 protected resource metadata: none
Authorization servers: none
Legacy HTTP+SSE transport: no
Dynamic client registration: not observed
Client ID metadata documents: not observed

WarnThe whole server
The endpoint served tools/list without credentials, and the list has 3 tools that change things (3 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://www.abyssfallgame.com/mcp: tools/list returned 6 tools to an anonymous client, including get_press_kit (write), subscribe_newsletter (write), preorder_merch (write)
What this check looks for

Install

Pinned to version 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http abyssfallgame https://www.abyssfallgame.com/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": [
      "mcp__abyssfallgame__get_game_info",
      "mcp__abyssfallgame__get_playtest_info",
      "mcp__abyssfallgame__get_merch_catalog"
    ],
    "ask": [
      "mcp__abyssfallgame__get_press_kit",
      "mcp__abyssfallgame__subscribe_newsletter",
      "mcp__abyssfallgame__preorder_merch"
    ],
    "deny": []
  }
}

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 abyssfallgame. Review it before you use it.

Capability tags behind 1 rule

mcp__abyssfallgame__get_press_kit private-data

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.abyssfallgame/mcp/changes.xml

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Anlyon alternative

3 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Compare with other servers for the same product.

Source: MCP Registry. Synced Oct 21, 2026, 17:47 UTC.

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