Agent skill · writing content · jeremylongshore
prompt-improver
Analyze and improve plugin prompts, skill definitions, and command instructions
Why this skill is useful
Provides structured analysis and improvement suggestions for prompts and skill definitions that the AI wouldn't reliably generate on its own.
What it needs
About 3k tokens when loaded. Last updated 2026-08-07. 2,604 stars on the source repository.
What this skill does
Prompt Improver This skill automatically analyzes and improves plugin prompts, SKILL.md files, command definitions, and agent instructions. Overview The prompt-improver skill evaluates plugin content across five dimensions — clarity, safety, effectiveness, completeness, and conciseness — then provides scored assessments and concrete rewrites. When to Use This Skill This skill activates when you need to: Review and improve a SKILL.md file's instructions Enhance command or agent markdown definitions Audit prompt quality across a plugin Optimize instructions for better Claude performance Ensure prompts follow marketplace best practices Instructions 1. Identify the target — Locate the SKILL.md, command, or agent file to analyze 2. Read the content — Use Read tool to get the full file contents 3. Score each dimension on a 1-5 scale: Clarity (1-5): Are instructions unambiguous? Safety (1-5): Does it avoid encouraging dangerous operations? Effectiveness (1-5): Will it reliably produce intended results? Completeness (1-5): Are edge cases addressed? Conciseness (1-5): Is it free of unnecessary verbosity? 4. Identify improvements — List specific weaknesses with line references 5. Generate rewrites — Provide improved versions preserving original intent 6. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills jeremylongshore/prompt-improver--d83fac