Prompts Determine AI Writing Quality
The effectiveness of AI writing tools is 80% determined by the prompt (Prompt). The same AI can write a brilliant article with a good prompt, or produce a bland list with a poor one.
Key Elements of a Prompt
Role Setting
Tell the AI who it is:
- You are a senior copywriter
- You are a tech blog author
- You are a product manager
- You are an elementary school language teacher
The role determines the AI's perspective and expertise. A "senior copywriter" produces far more professional copy than "write me some text."
Clear Topic
Clearly state what to write about:
- Bad: Write an article about PDF
- Good: Write an article introducing how to use a PDF merge tool, aimed at office workers
Audience Targeting
Tell the AI who the audience is:
- A tutorial for technical staff
- An introduction for general users
- An analysis for decision-makers
Different audiences require different vocabulary and depth.
Structure Requirements
Specify the article structure:
- Open with a problem
- Develop 3 points in the middle
- Summarize at the end
- Include an example for each point
Style Control
- Professional and rigorous
- Light and humorous
- Concise and punchy
- Narrative storytelling
Length Requirements
- 300-word summary
- 800–1500 word article
- 2000-word in-depth analysis
Prompt Templates
General Template
Role: You are [role]
Task: Write a [type] article
Topic: [topic]
Audience: [target readers]
Structure: [structure requirements]
Style: [style]
Length: [word count]
Other requirements: [special requirements]
Example
Role: You are a tech blog author
Task: Write a tutorial article
Topic: How to use a PDF merge tool
Audience: Office workers, non-technical staff
Structure: Start with the use case, introduce steps in the middle, summarize at the end
Style: Concise and clear, use plain language
Length: 800–1000 words
Other requirements: Mention the tool link, emphasize ease of use
Prompt Techniques
Be Specific, Not Vague
- Bad: Write it better
- Good: No more than 3 lines per paragraph, use short sentences
Give Examples
Provide AI with reference samples:
Reference this style:
"Merging PDFs is like binding several books into one volume. Open the tool, drag in the files, click merge, done."
Step-by-Step Guidance
Write complex articles step by step:
- Write an outline first
- Confirm the outline, then write the body
- Revise and optimize
Set Constraints
- Avoid clichés like "firstly," "secondly"
- No exclamation marks
- No more than 5 lines per paragraph
- Use active voice
Iterative Optimization
If the AI's output is unsatisfactory, provide revision feedback:
- "The opening is too long; shorten to 2 lines"
- "The second point is not specific enough; add an example"
- "The tone is too formal; make it more relaxed"
Common Prompt Problems
Too Vague
"Write an article"—the AI doesn't know what to write and makes things up.
Solution: Clarify the topic, audience, and structure.
Too Complex
One prompt asks for too much—the AI can't handle it all.
Solution: Split into multiple prompts and write step by step.
Contradictory Requirements
"Detailed but concise"—the AI doesn't know what to do.
Solution: Clarify priorities: "Focus on detail; keep each paragraph concise."
No Constraints
No length or style constraints—the AI writes freely and may not meet expectations.
Solution: Add length and style constraints.
Prompts for Different Article Types
Tutorial Article
Write a [topic] tutorial
Introduce step by step, with instructions for each step
For [audience], use plain language
800–1200 words
Product Introduction
Write a [product] introduction
Highlight 3 key features
For potential users
Style: Engaging, compelling
500–800 words
Technical Analysis
Write an in-depth analysis of [technology]
Compare 3 solutions' pros and cons
For technical staff
Style: Rigorous and professional
1500–2000 words
Marketing Copy
Write a [product] marketing copy
Highlight the pain-point solution
For target customers
Style: Compelling, drives conversion
200–300 words
Write with DocsAll AI
- Enter the prompt (role + task + topic + audience + style + length)
- AI generates the article
- If unsatisfied, provide revision feedback
- Iterate and optimize
- Copy the result
Prompt Optimization Workflow
First Version
Write a prompt using the general template and generate a draft.
Evaluate
Check the draft:
- Is the topic correct
- Is the structure reasonable
- Does the style match
- Is the length sufficient
Revise the Prompt
Adjust the prompt based on the evaluation:
- Not specific enough → add detail
- Off-topic → emphasize the topic
- Wrong style → adjust the style description
- Too long/too short → adjust the length requirement
Regenerate
Use the revised prompt to generate again.
Repeat
Until satisfied. Usually 2–3 rounds of iteration produces good results.
Summary
AI writing quality is 80% about the prompt. A good prompt includes six elements: role, topic, audience, structure, style, and length. Be specific, not vague; guide with examples; write step by step; and iterate to optimize. DocsAll AI Writing tool helps you write great articles.