Skip to content

Ostrov retreat center

by ostrov.center · remote · no sign-in to list tools · v0.2.0 · published by center.ostrov

Public retreat information, calendars and preliminary accommodation quotes for Ostrov in Karelia.

Changes · 2
CompareRegistry entry

7 tools: 2 change things and 5 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 public-api https://ostrov.center/api/public/v1/mcp

Tools

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

7 tools

Changes things 2Claude Code: ask
  • calculate_quoteCalculate without saving or contacting anyone.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
    Calculate without saving or contacting anyone. Check complete, warnings and availabilityStatus.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • suggest_groupSuggest room/program selection for the ordinary group tariff; not an availability check.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
    Suggest room/program selection for the ordinary group tariff; not an availability check.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 5Claude Code: allow
  • get_calendarConfirmed public activity; empty dates do not mean availability.No findings

    Why it is in this group

    • The name "get_calendar" says "get": a word for reading.
    Description, as the server wrote it
    Confirmed public activity; empty dates do not mean availability.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_catalogCurrent tariff version, resources and rules.No findings

    Why it is in this group

    • The name "get_catalog" says "get": a word for reading.
    Description, as the server wrote it
    Current tariff version, resources and rules. Do not cache prices as permanent knowledge.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_centerPublic location and contact information.No findings

    Why it is in this group

    • The name "get_center" says "get": a word for reading.
    Description, as the server wrote it
    Public location and contact information.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_eventsPublic programs and labeled demo data; contact the organizer to ask about joining.No findings

    Why it is in this group

    • The name "get_events" says "get": a word for reading.
    Description, as the server wrote it
    Public programs and labeled demo data; contact the organizer to ask about joining.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_objectsCurrent public resource descriptions and availability rules; no guarantee of open places.No findings

    Why it is in this group

    • The name "get_objects" says "get": a word for reading.
    Description, as the server wrote it
    Current public resource descriptions and availability rules; no guarantee of open places.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: 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 0.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http public-api https://ostrov.center/api/public/v1/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__public-api__get_center",
      "mcp__public-api__get_catalog",
      "mcp__public-api__get_objects",
      "mcp__public-api__get_calendar",
      "mcp__public-api__get_events"
    ],
    "ask": [
      "mcp__public-api__calculate_quote",
      "mcp__public-api__suggest_group"
    ],
    "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 public-api. Review it before you use it.