System Prompts
Define who an AI is — its role, personality, tone, and rules. Sent at the start of every conversation.
Writing good prompts is the difference between a vague, mediocre response and a precise, powerful one. This guide covers the core principles and practical techniques for each type of prompt that Promptzy supports.
Promptzy organizes prompts into four categories, each serving a distinct purpose:
System Prompts
Define who an AI is — its role, personality, tone, and rules. Sent at the start of every conversation.
Task Prompts
Tell an AI what to do — a specific action, request, or workflow to execute.
Image Prompts
Describe what to generate visually — style, subject, lighting, mood, and composition.
Video Prompts
Like image prompts, but with motion, timing, camera movement, and narrative arc.
Vague prompts produce vague results. The more detail you give, the better the output.
| ❌ Vague | ✅ Specific |
|---|---|
| ”Write a blog post" | "Write a 600-word blog post about sustainable fashion for eco-conscious Millennials, with a conversational tone and 3 actionable tips" |
| "A portrait" | "Studio portrait of a woman in her 30s, soft diffused lighting, shallow depth of field, warm golden tones, professional headshot style” |
Giving the AI a role dramatically improves the quality and consistency of its responses.
You are a senior UX designer with 10 years of experience building SaaS products.Your advice is practical, concise, and grounded in real-world constraints.If you want a specific structure, say so explicitly.
Respond with a JSON object containing keys: title, summary, tags (array), and difficulty (1-5).Constraints help the AI stay focused and avoid irrelevant tangents.
- Keep responses under 200 words- Do not use bullet points- Avoid technical jargon- Always provide at least one concrete exampleShowing the AI an example of what you want is often more effective than describing it.
Here's an example of the tone I want:
Input: "coffee"Output: "A dark, smoky blend with notes of dark chocolate and cedar — the kind of cup that doesn't apologize for being bold."
Now write a similar description for: "matcha"Your first prompt is rarely your best one. Save working prompts to Promptzy, note what worked, and refine from there.
System prompts install a persistent persona into an AI for the entire conversation. A great system prompt answers:
Template structure:
You are [role] with [expertise].Your communication style is [tone/style].You always [positive behaviors].You never [negative behaviors / things to avoid].When asked about [topic], you [specific behavior].Task prompts are one-shot instructions. Structure them like a mini brief:
Context: I run a small Etsy shop selling hand-painted plant pots.Task: Write 5 product listing titles for a terracotta pot with a painted succulent design.Format: Each title should be under 80 characters, include relevant keywords.Constraints: Must feel warm and artisan, not corporate.Great image prompts describe the subject, style, lighting, color palette, and mood. Think like a creative director giving a brief to a photographer.
Core elements:
[subject description], [art style / medium], [lighting], [color palette], [mood / atmosphere], [camera / composition details]Example:
A lone astronaut standing on the surface of Mars at dusk, cinematic photography,long shadows, burnt orange and deep indigo sky, dust haze in the atmosphere,wide angle lens, dramatic backlighting, photorealistic, 8KUseful style keywords:
cinematic, photorealistic, hyperrealistic, film grainconcept art, digital painting, oil painting, watercolorStudio Ghibli style, anime, pixel art, low polysoft bokeh, shallow depth of field, wide angle, macrogolden hour, neon-lit, high contrast, moody, etherealVideo prompts add motion and time to image concepts. Include:
Example:
Slow cinematic drone pullback from a campfire in a misty forest at night,pine trees fading into fog, golden firelight flickering, stars emerging above the treeline,smooth easing motion, 6 seconds, atmospheric and sereneWhen using Promptzy’s built-in AI assistant to generate prompts, give it just enough context:
Example inputs:
A system prompt for a no-nonsense senior software engineerwho gives blunt, practical code review feedbackAn image prompt for a magical forest library with glowing bookshelves,fantasy art style, warm amber lightThe AI assistant will expand your brief into a full, production-ready prompt.