Prompt Tuner
$2.99OfficialUse when a prompt underperforms and needs systematic diagnosis, single-variable experiments, and A/B evidence instead of guess-and-check rewrites.
Model requirements
advanced
33k tokens
Preview
When to use
Use this skill when a prompt (system prompt, instruction block, tool description, or template) is underperforming and the user wants it fixed with evidence rather than vibes: wrong formats, ignored instructions, hallucinated fields, inconsistent tone, misfired tool calls. Also use it when the user proposes a prompt rewrite and wants to know if it is actually better.
Do not use it when the failure is caused by missing information or a missing tool — no wording fixes an impossible task.
Inputs to gather
- The exact current prompt, verbatim, including any template variables and where runtime content is injected.
- Failure examples: at least 5 real input/output pa
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