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Prompt Writer Skill

A meta-skill that transforms rough ideas into polished, effective AI prompts for any tool: image generators, chatbots, coding assistants, video generators, and custom agents. Triggered with /prompt-writer.

Skill·/prompt-writer·3 sections·1 min read

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Install Prompt

Paste this into Claude Code to set it up:

I want to add the /prompt-writer skill to my Claude Code setup.

Create the directory ~/.claude/skills/prompt-writer/ and inside it create SKILL.md with the prompt engineering workflow.

The skill should:
- Transform rough ideas into structured AI prompts
- Calibrate depth based on stakes (4 levels)
- Follow a full assessment protocol
- Output production-ready prompts

After creating the file, the skill is immediately available via /prompt-writer.

01What It Does

Better prompts for any AI tool

This skill helps you write better prompts for any AI platform. Whether you need a Midjourney image prompt, a ChatGPT system prompt, a custom agent persona, or a video generation prompt, the skill asks the right questions, applies proven techniques, and delivers polished results with explanations of why each element works.

Understand the request

Asks about the target AI tool, desired outcome, stake level, constraints, and any examples of good output. Skips questions you already answered.

Calibrate depth

Quick draft: one clean prompt. Professional use: 2 variations with rationale. Mission critical: 2 to 3 variations with detailed breakdowns.

Apply best practices

Platform specific techniques: role and context for LLMs, composition and style for image generators, persona and tools for agents.

Deliver the prompt

Clean, copy-pasteable prompt in a code block. Followed by why it works, how to iterate, and platform-specific tips.

02Platform Coverage

💬

Text and Chat (LLMs)Clear role and context, specific output format, examples for complex tasks, constraints and guardrails, chain-of-thought for reasoning.

🎨

Image GenerationSubject and composition, style references and artist cues, lighting and mood, technical parameters, negative prompts where supported.

🤖

System Prompts (Agents)Persona definition, available tools and when to use them, output format, edge case handling, and escalation rules.

🎬

Video and AudioScene description, camera movement, pacing, style and mood, duration and format, and reference material.

03When to Use This Skill

Image generation: writing prompts for Midjourney, DALL-E, or Stable Diffusion

Agent creation: writing system prompts for custom agents or chatbots

Task prompts: crafting specific prompts for ChatGPT, Claude, or other LLMs

Prompt templates: building reusable prompts for repeated use across workflows

This skill requires no MCP servers or external tools. It works purely through prompt engineering expertise and adapts to any AI platform you are targeting.