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Debugv1.0.0

Prompt Fix

/prompt-fix

Structured prompt debugging via single-variable ablation. Replaces vibe-iteration with name-the-failure → 3 ablations → comparison.

Install in one command

Install
mkdir -p ~/.claude/skills/prompt-fix && curl -fsSL https://eliteaiadvantage.com/skills/prompt-fix/SKILL.md -o ~/.claude/skills/prompt-fix/SKILL.md
Download SKILL.md

Then run /prompt-fix in Claude Code.

What it is

When a prompt isn't producing what you want, the failure mode is rewriting the whole thing and re-running. You change three things at once, the output gets slightly different, you can't tell which change helped, you change three more things. Prompt Fix forces single-variable ablations: change one thing per run, log results, compare.

The skill names the failure mode precisely (format / reasoning / consistency / tone), defines success concretely, proposes three single-variable ablations, runs each, and outputs a comparison table. No more vibing on prompt rewrites.

Why it's useful

  • Forces precision on the failure mode, "outputs sometimes return markdown when JSON expected" beats "the prompt isn't great."
  • Each ablation changes one variable relative to baseline, so you can attribute improvement.
  • Runs each ablation 3x where possible to handle LLM non-determinism.
  • Outputs a structured comparison table, not a vibe.
  • Saves winning ablations as new versions instead of overwriting working prompts.

When to use it

  • A prompt is misbehaving and your three rewrites haven't helped.
  • Output is right "most of the time" but inconsistent.
  • Migrating a prompt to a new model and behavior changed.
  • Tuning a prompt for production where you need predictable output.

How it helps with Claude

Without this skill, prompt iteration is essentially gambling: change phrasing, run, eyeball, repeat. Prompt Fix imposes engineering discipline on the loop, one variable per change, multiple runs per ablation, comparison against explicit success criteria. The output is reproducible, not a vibe-driven rewrite.

Published 4/25/2026 · Last updated 5/6/2026
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Prompt Fix, A Claude skill by Elite AI Advantage