Individual skill

prompt-optimizer

Use when asked to improve, optimize, rewrite, tune, or port a prompt, skill, or tool description. Also for building prompt evals or auditing prompt text for dated instructions.

.devin/skills/prompt-optimizer/SKILL.md

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Last checked: Nov 4, 2026

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Repository stars (not skill ratings): 55
Repository last updated: Sep 28, 2026
License: Apache-2.0

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SKILL.mdcore · 11,443 bytes
SKILL.mdcore · 11,443 bytes
SKILL.mdcore · 11,443 bytes
agents/openai.yamlasset · 167 bytes
references/audit-patterns.mddoc · 21,072 bytes
references/prompt-guides.mddoc · 5,401 bytes

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# Prompt optimizer

## Contract

| Field | Bound contract |
|---|---|
| Trigger | User asks to improve, optimize, rewrite, tune, or port a prompt, or to audit prompt text for dated instructions |
| Authority | Read-only. No file, VCS, credential, paid, published, deployed, or remote mutation. A proposed diff is chat output; applying it is outside this skill. |
| Side effect | Chat output returns either an optimized prompt or an audit report plus a proposed diff |
| Done | Optimize mode: shorter prompt validated on holdout cases with one owner per behavior rule. Audit mode: every finding names a pattern and a target-model reason, and the diff carries only high- and medium-confidence hunks. |

## Inputs

Required: