# Coronet Arcade

> Play 13 free daily logic and word puzzles, or get spoiler-free rules. No signup required.

- name: one.coronet/coronet-arcade
- version: 0.1.0
- connection class: unknown (unknown)
- trust: 61/100 flags: no-repository
- quality: 89/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/one.coronet%2Fcoronet-arcade
- tools: https://api.protogrid.dev/v1/servers/one.coronet%2Fcoronet-arcade/tools

**Not classified yet.** The remote endpoints have not been probed successfully, or the listing has nothing to connect to.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "coronet-arcade": {
      "type": "http",
      "url": "https://coronet.one/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 28
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website -unreachable(1 failures) +updated-6d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 89/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 3 of 3 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 512 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 5 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 3, about 512 tokens to load them all
- tool set hash: 740bd4cae936424db134f03499875dc5
- tools last changed: 2026-10-17T18:39:26.491Z
- badge: [![protogrid quality](https://protogrid.dev/badge/one.coronet/coronet-arcade.svg)](https://protogrid.dev/servers/one.coronet/coronet-arcade)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-17 `get_rules` changed (description, inputSchema) **meaning changed**
  - before: Explain the rules and normal controls for one Coronet Arcade game without revealing a puzzle answer.
  - after: Explain one game's rules and controls as titled steps, never a puzzle answer. Required game is a game id, not a board. Use this to teach a game. Use list_dailies to browse today's puzzles and open_daily to play.
- 2026-10-17 `open_daily` changed (description, inputSchema) **meaning changed**
  - before: Open the playable daily puzzle with normal controls, undo and finite hints, or the thirteen-puzzle hub. Progress lasts in the active widget and does not sync to the website. Do not describe or reveal solutions.
  - after: Open a playable daily, or the thirteen-puzzle hub when game is omitted or hub. Pass a game id to open that board; game defaults to hub. Progress stays in the widget and does not sync to the website. Do not reveal solutions. Use list_dailies to browse and get_rules to explain a game instead of opening it.
- 2026-10-17 `list_dailies` changed (description)
  - before: List the thirteen daily puzzles, their descriptions, and exact daily identities. No puzzle answers. Use open_daily to play one or open the hub.
  - after: List today's thirteen puzzles, their blurbs, and exact daily ids. No answers. Use open_daily to play one or the hub, and get_rules to explain a game without opening it.

Full history: https://api.protogrid.dev/v1/servers/one.coronet%2Fcoronet-arcade/changes

## Remotes

- https://coronet.one/mcp (streamable-http, auth none, reachable false, uptime30d 0.95652175)

## Packages

_none_

## Tools (3)

- `get_rules`: Explain one game's rules and controls as titled steps, never a puzzle answer. Required game is a game id, not a board. Use this to teach a game. Use list_dailies to browse today's puzzles and open_daily to play.
- `list_dailies`: List today's thirteen puzzles, their blurbs, and exact daily ids. No answers. Use open_daily to play one or the hub, and get_rules to explain a game without opening it.
- `open_daily`: Open a playable daily, or the thirteen-puzzle hub when game is omitted or hub. Pass a game id to open that board; game defaults to hub. Progress stays in the widget and does not sync to the website. Do not reveal solutions. Use list_dailies to browse and get_rules to explain a game instead of opening it.