Arena Skill plugin for Grok Build

Name: Arena Skill
Author: Jakeschincariol

Community Claude Code plugin, installs in GrokPluginProductivity

When Claude keeps giving you bad answers, make 100 versions of it fight to the death. Same task, 100 different strategies, a bracket, one answer left. Free Claude Code skill.

How to install Arena Skill in Grok Build

grok plugin install Jakeschincariol/arena-skill --trust

✓ Install-checked in Grok Buildchecked Oct 18, 2026

Review before you trust it. --trust lets this plugin's hooks, MCP servers and scripts run code on your computer. It's a community repo that neither xAI nor GrokStacks has reviewed, so read its code first.

We install this repo directly: Grok Build 1.0.62 can't install it through its own marketplace file. Then start a new Grok session, or press r in /plugins, to load it.

Command format: Grok Build's plugin guide

What we checked: on Oct 18, 2026 it installed with grok 1.0.62 and Grok found 1 skill. That's an install check only: we haven't run it in a live Grok session.

What it contains

Skills (1)

arena — Make 100 versions of Claude fight to the death over one task. Spins up N sub-agents (default 100, --quick for 16), gives every one the exact same task plus a different strategy card (reasoning mode, workflow, strategy), then runs a single-e

About this listing

Arena Skill is a community plugin on GitHub by Jakeschincariol, written as a Claude Code plugin that Grok Build installs. We install-checked it in Grok; we haven't run it in a live session or reviewed its code. When we installed it, Grok found 1 skill. Its license is MIT. We checked commit df07b8e518e1. It's one of 162 listings in the Productivity category on GrokStacks.

Arena Skill FAQ

How do I install Arena Skill in Grok Build?

Run grok plugin install Jakeschincariol/arena-skill --trust. We install-checked this command in Grok Build. We install this repo directly: Grok Build 1.0.62 can't install it through its own marketplace file. Then start a new Grok session, or press r in /plugins, to load it.

Is Arena Skill an official Grok Build plugin?

No. Arena Skill is a community plugin on GitHub by Jakeschincariol, not in xAI's official Grok Build marketplace. We checked that it installs and what Grok loads from it, but haven't run it in a live Grok session or reviewed its code.

What does Arena Skill include?

According to what Grok loaded in our install check, Arena Skill includes 1 skill: arena.

Details

Type: Plugin
Category: Productivity
Source: Community Claude Code plugin, installs in Grok
License: MIT
Author: Jakeschincariol
Version: 1.0.0
Keywords: arena, claude-code, claude-skills, multi-agent, prompting, subagents, tournament
Source repo: https://github.com/Jakeschincariol/arena-skill
Checked commit: df07b8e518e1
Checked by GrokStacks: Install-checked in Grok Build on Oct 18, 2026; not run in a live session

Something wrong or missing? Submit or improve this listing. Marketplace listings also refresh automatically every night.

For maintainers: badge and embeds

Maintain Arena Skill? Add the badge; it links to this page.

Markdown

[![Listed on GrokStacks](https://grokstacks.com/badge.svg)](https://grokstacks.com/p/arena-skill/)

HTML

<a href="https://grokstacks.com/p/arena-skill/"><img src="https://grokstacks.com/badge.svg" alt="Listed on GrokStacks" width="164" height="28"></a>

Embed card (static HTML and inline CSS, no JavaScript). Preview:

Arena SkillCommunity plugin for Grok Build · 1 skillWhen Claude keeps giving you bad answers, make 100 versions of it fight to the death. Same task, 100 different…View on GrokStacks →

<a href="https://grokstacks.com/p/arena-skill/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #2a2e3c;border-radius:12px;background:#0a0b0f;color:#e8eaf0;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#e8eaf0">Arena Skill</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#9aa0b1">Community plugin for Grok Build · 1 skill</span><span style="display:block;margin:0 0 10px;color:#c9cdd8">When Claude keeps giving you bad answers, make 100 versions of it fight to the death. Same task, 100 different…</span><span style="font-size:12px;font-weight:600;color:#7c9cff">View on GrokStacks →</span></a>

Markdown summary

**[Arena Skill on GrokStacks](https://grokstacks.com/p/arena-skill/)**: Community plugin for Grok Build with 1 skill. Install: `grok plugin install Jakeschincariol/arena-skill --trust`

More on badges, embeds and keeping your listing up to date: GrokStacks for plugin authors.

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