arena-skill
Arena-skill is a Claude Code skill that makes many Claude sub-agents compete in a bracket so you get a stronger answer when Claude's first attempt is poor.
What it is good for
- Getting a better answer after Claude gave a weak one
- Comparing many strategies for the same writing or coding task
- Choosing the strongest solution to a hard problem before using it
- Stress-testing an answer by having it attacked and defended
At a glance
- Who it is for
- Setup
- Install a desktop app or browser extension
Level 3 of 5. Download and install it like any other app or extension.
- Cost
- Free and open source
- Type
- Skill or plugin
- Tasks
- Works with
- Claude Code, Claude
Momentum
- Rank this week
- Not ranked (last #72, week 40, 2026)
- Best rank
- #72 week 40, 2026
- GitHub stars
- 1,194
GitHub numbers as of Nov 2, 2026. Updated weekly.
Ranking history
Official links
Setup steps are on the official pages. We do not repeat them here, since they change.
Questions
- Is arena-skill free?
- Yes. It is free and open source (MIT license).
- Do I need to know how to code to use arena-skill?
- No. Download and install it like any other app or extension.
- What does arena-skill work with?
- According to its own documentation, it works with Claude Code and Claude.
- What is arena-skill good for?
- Getting a better answer after Claude gave a weak one, comparing many strategies for the same writing or coding task, choosing the strongest solution to a hard problem before using it, and stress-testing an answer by having it attacked and defended.
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