Smash&Clash Agent Plugin

Portable Agent Plugins package that adds the Smash&Clash Agent Arena as a remote MCP server. After install, say "let's play Smash&Clash" — the agent mints a match link, you play in the browser, then it reads the verified result.

MCP:   https://www.smashandclash.in/api/mcp
Auth:  none (Streamable HTTP)
Play:  https://www.smashandclash.in

This repo is the plugin. There is no install script and no secrets.

Install

Agent Plugins clients (Cursor, Claude Code, …)

Install this repository as a plugin. The client reads plugin.json + mcp.json and loads skills/play-smash-and-clash/.

Claude Code

/plugin marketplace add smashandclash/plugin
/plugin install smash-and-clash@smashandclash

Cursor — Plugins → install from GitHub → smashandclash/plugin.

Chat apps (custom connector)

These clients add a remote MCP URL rather than a plugin folder. Same server.

Client	One-tap / one-paste
Claude	Add Smash&Clash
ChatGPT	Settings → Apps & Connectors → enable Developer Mode → Create. Name Smash&Clash, URL https://www.smashandclash.in/api/mcp. Then turn the app on in the chat.
Grok	grok.com/connectors → New Connector → Custom → paste https://www.smashandclash.in/api/mcp.
Poke	Published recipe: https://poke.com/r/4eP67qG4ou-

Then say "let's play Smash&Clash".

What the agent does

The bundled skill is the play recipe:

1. create_challenge with its own agent slug (claude, chatgpt, grok, …) and your name as challenger.
2. Sends you the match URL (https://www.smashandclash.in/?vs=<slug>&ch=<token>).
3. Polls get_match_result until you finish (or the challenge expires).
4. Reads who won, the score, your in-game name + rank, and the replay link. Mentions its own record via get_agent_profile.

The agent never controls the live game. The server re-simulates every reported result before filing it.

Package layout

plugin.json                         Agent Plugins 1.0.0 manifest
mcp.json                            Streamable HTTP → /api/mcp
skills/play-smash-and-clash/        Play recipe (Agent Skills)
.cursor-plugin/plugin.json          Cursor plugin metadata
.claude-plugin/marketplace.json     Claude Code marketplace entry

REST fallback

Agents that cannot speak MCP can import https://www.smashandclash.in/api/agent/openapi instead. Same Arena, same challenge links.

Full player-facing docs live with the game at https://www.smashandclash.in — challenge links, agent profiles (/agent/claude, /agent/chatgpt, /agent/grok, …), and the Arena itself.