Prompt Optimizer

This one sits between you and Claude Code to make your prompts actually work. Instead of executing tasks, it analyzes what you're asking for, figures out which ECC skills and commands apply, checks your tech stack from project files, and hands back a complete optimized prompt you can paste. It's especially useful when you're working cross-domain or don't know which skills exist for your stack. The six-phase pipeline catches missing context like acceptance criteria or security requirements before you waste a round trip. Supports both English and Chinese triggers. Think of it as a prompt linter that knows the entire ECC ecosystem.

skills.sh installs: 6.3K
GitHub stars: 300.3K
last updated: Aug 21, 2026

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Install

$ npx -y skills add affaan-m/ecc --skill prompt-optimizer --agent claude-code

Installs into .claude/skills of the current project.

Files

Prompt Optimizer

Analyze a draft prompt, critique it, match it to ECC ecosystem components, and output a complete optimized prompt the user can paste and run.

When to Use

User says "optimize this prompt", "improve my prompt", "rewrite this prompt"
User says "help me write a better prompt for..."
User says "what's the best way to ask Claude Code to..."
User says "优化prompt", "改进prompt", "怎么写prompt", "帮我优化这个指令"
User pastes a draft prompt and asks for feedback or enhancement
User says "I don't know how to prompt for this"
User says "how should I use ECC for..."
User explicitly invokes /prompt-optimize

Do Not Use When

User wants the task done directly (just execute it)
User says "优化代码", "优化性能", "optimize this code", "optimize performance" — these are refactoring tasks, not prompt optimization
User is asking about ECC configuration (use configure-ecc instead)
User wants a skill inventory (use skill-stocktake instead)
User says "just do it" or "直接做"