Auto Arena

Quality score: 70/100 · Category: General · Sub-category: automation

Automatically evaluate and compare multiple AI models or agents without pre-existing test data. Generates test queries from a task description, collects responses from all target endpoints, auto-generates evaluation rubrics, runs pairwise comparisons via a judge model, and produces win-rate rankings with reports and charts. Supports checkpoint resume, incremental endpoint addition, and judge model hot-swap. Use when the user asks to compare, benchmark, or rank multiple models or agents on a custom task, or run an arena-style evaluation.

What this skill does

Auto Arena is a production-ready Claude Code skill (quality score 70/100) in the automation sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/auto-arena/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user asks to compare, benchmark, or rank multiple models or agents on a custom task, or run an arena-style evaluation.

Who uses this skill

The Auto Arena skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/auto-arena
curl -L https://claudskills.com/skills/auto-arena/SKILL.md \
  -o ~/.claude/skills/auto-arena/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/auto-arena/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/auto-arena/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\auto-arena\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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Part of ClaudSkills — the open registry for Claude Code skills. · What's New · Install guide · About · llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: GifPerfect · AspectPerfect · SlomoPerfect · Ucaption · UTagger · AutoXPoster · TestYourSkills