arena
Spawn N parallel candidates at the same task, pick a base, graft the strongest parts of the losers into it. Use for /arena, 'arena this', 'throw it in the arena', or when one attempt at a non-trivial artifact would lock in the wrong shape.
- License
- MIT
- SKILL.md tokens
- 1,399
- Bundled files
- 0
- Bundled tokens (estimated)
- 0
Cost per 1,000 loads
Estimated input cost per 1,000 loads of SKILL.md only (characters ÷ 4). Bundled files, output tokens and execution are excluded.
| Model | Input / 1M tokens | 1,000 loads |
|---|---|---|
| Claude Opus 5 | $5.00 | $7.00 |
| Claude Sonnet 5 | $2.00 | $2.80 |
| Claude Haiku 4.5 | $1.00 | $1.40 |
Safety flags
Detected automatically from files; not a security audit.
- Runs scripts
- No
- Network access
- No
- Shell commands
- Yes
Works with
Open SKILL.md format
- Claude Code
- Codex
- Cursor
- GitHub Copilot
- Gemini CLI
- OpenCode
- Goose
Install
npx skills add cursor/plugins --skill arenaCursor
/add-plugin pstackThen
/setup-pstackLast verified:
arena FAQ
What does the arena skill do?
Spawn N parallel candidates at the same task, pick a base, graft the strongest parts of the losers into it. Use for /arena, 'arena this', 'throw it in the arena', or when one attempt at a non-trivial artifact would lock in the wrong shape. Source: https://github.com/cursor/plugins/tree/main/pstack/skills/arena
What does the arena skill cost to load?
SKILL.md is about 1,399 tokens. Estimated input cost per 1,000 loads: Claude Opus 5 $7.00; Claude Sonnet 5 $2.80; Claude Haiku 4.5 $1.40. Estimated input cost per 1,000 loads of SKILL.md only (characters ÷ 4). Bundled files, output tokens and execution are excluded. Prices: https://docs.anthropic.com/en/docs/about-claude/pricing
How do I install the arena skill?
Skills CLI: npx skills add cursor/plugins --skill arena. Download the arena skill folder as a ZIP and upload it in Claude.ai skills settings.
Is the arena skill safe?
Automatically detected flags: shell commands. Flags are detected automatically from the skill's files and are not a security audit; review the SKILL.md before installing.