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Prompt Optimizer (EARS)

Turns vague requests into precise, testable prompt specifications using EARS syntax and domain theory grounding.

UtilitiesIntermediate★ 1,323⑂ 212AI score 9/10Last updated: Aug 8, 2026

What it does

Rewrites loose requests like "build me a dashboard" into structured specifications using EARS (Easy Approach to Requirements Syntax), a requirements notation originating at Rolls-Royce.

  • Diagnoses weaknesses in the original request (too broad, missing triggers, unmeasurable wording)
  • Rewrites statements into the 5 EARS patterns: ubiquitous, event-driven, state-driven, conditional, unwanted behavior
  • Matches the domain to established frameworks (GTD, BJ Fogg model, Gestalt principles, Zero Trust, etc.)
  • Extracts concrete examples with real data instead of placeholders
  • Emits a final prompt in a Role / Skills / Workflows / Examples / Formats template

Who it's for

  • Anyone whose AI-generated code or docs keep missing the mark
  • PMs and BAs who need testable feature specs and acceptance criteria
  • Developers and designers standardizing prompts as reusable team assets

Examples

  1. "Create a reminder app" → EARS list: "When the user creates a task, the system shall guide decomposition into executable sub-tasks", "When the deadline is within 30 minutes and the user has not started, the system shall send a notification with a sound alert".
  2. "Add user authentication" → flags missing password rules, session handling and lockout behavior, then grounds them in Zero Trust / Defense in Depth.
  3. "Make the UI more user-friendly" → replaced with measurable criteria derived from Hick's Law and Fitts's Law (option counts, target sizes, click depth).

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/daymade/claude-code-skills/HEAD/prompt-optimizer/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the prompt-optimizer folder from the GitHub repo daymade/claude-code-skills into my ~/.claude/skills/prompt-optimizer/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/daymade/claude-code-skills.git && mkdir -p ~/.claude/skills && cp -r claude-code-skills/prompt-optimizer ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repository: git clone https://github.com/daymade/claude-code-skills.git
  3. Create the skills directory if needed: mkdir -p ~/.claude/skills
  4. Copy the skill: cp -r claude-code-skills/prompt-optimizer ~/.claude/skills/
  5. Verify the references/ folder came along (ears_syntax.md, domain_theories.md, examples.md, advanced_techniques.md) — the advanced steps need it.
  6. Restart Claude Code and say "optimize this prompt / improve this requirement" to trigger the skill.
View source on GitHub ↗License: MIT