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How to get a stronger answer after Claude keeps missing with Arena Skill

Run /arena on a task Claude keeps getting wrong and receive one attacked, judged survivor.

Who it is forA developer or writer who has asked Claude for the same thing several times and still is not happy with the result.

The problemRe-asking Claude one prompt at a time gives variations of the same weak answer and no record of what is wrong with it.

The outcomeOne surviving solution, the attacks it beat, its strategy card and the round count, plus a blind comparison against the rejected answer.

What you need first

  • Claude Code, because the skill spawns sub-agents with the Agent tool
  • Python 3.8 or newer
  • git, to clone the repo (or copy the folder by hand)
  • Tokens to pay for the sub-agent calls, which the README says is the main cost

Steps

  1. Clone the repo with git clone https://github.com/Jakeschincariol/arena-skill.git
  2. Copy the skill with cp -r arena-skill/skills/arena ~/.claude/skills/
  3. In Claude Code, run /arena --quick <your task> using the task you want solved (inferred, check the README)
  4. Read the surviving solution and the attacks it survived before you use it
  5. Apply any code changes yourself, since the skill asks before it changes anything

Prompt for your agent

Install the arena skill from https://github.com/Jakeschincariol/arena-skill by copying skills/arena into ~/.claude/skills/, then run /arena --quick on <task>. Expected output: one surviving solution, the attacks it survived, its card and the round count. Verify that every sub-agent wrote only inside .arena/ before you apply any change to the project.

Caveat. The judges are Claude too, so the survivor is the strongest answer this tournament found, not a proof that it is correct.

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