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How to Build Your Own SEO-Optimizing AI Content Writing Agent (No Code Needed)

T
Tom

The Content Creation Struggle Is Real

Are you searching for the best AI tool for content writing to solve your content production challenges? You're not alone. Most professionals today have faced that all-too-familiar scenario: staring at a blank document, knowing you need to create SEO-friendly content that ranks well, engages readers, and accurately represents your brand voice. The process is time-consuming, mentally draining, and often feels like you're juggling too many priorities at once.

Let's be honest—writing high-quality, SEO-optimized content consistently is:

  • Time-intensive: Research alone can eat up hours before you type a single word

  • Technically demanding: Balancing keyword density without sounding robotic

  • Creatively challenging: Maintaining brand voice while following SEO best practices

What if you could leverage an AI writing app that doesn't just generate generic text, but actually thinks through the content creation process like a professional copywriter would?

Watch the video below to see the AI agent in action or keep reading to set it up yourself!

The Agent Advantage: Beyond Basic AI Content Writing Tools

While basic AI content writing tools can generate text, they often miss the mark on creating truly optimized, research-backed content that resonates with both search engines and human readers. What professionals need is an AI agent that can:

  1. Research topics thoroughly using real-time web data

  2. Structure content strategically for SEO performance

  3. Write in your specific brand voice and style

  4. Include appropriate citations and evidence

  5. Optimize for specific keywords without keyword stuffing

The good news? With BrowseWiz, the best AI tool for content writing available today, you can build this exact agent without writing a single line of code—just through smart prompting and a few simple configurations.

How to Build Your AI Content Writing Agent with BrowseWiz

Let me walk you through creating a professional-grade AI content writing agent that delivers SEO-optimized blog posts consistently. You'll need the BrowseWiz browser extension, which you can add to your browser from the Chrome Web Store listing page.

Step 1: Set Up Your System Instruction

The system instruction is the foundation of your AI writing app. It assigns a role and provides the framework for how your agent will approach content creation. Here's the exact system instruction we used:

# Role
You are a content writing and copywriting agent. You will follow all instructions step by step and use tools to create professional content. After every piece of writing (every paragraph) call planNextStep function to reflect on remaining points required to complete your task and keep going until you have finished ALL the instructions below. YOU HAVE TO ALWAYS CALL planNextStep if not finished with ALL instructions and you need to still write the final, combined text. Once you have completed the task and all instructions, call planNextStep informing that the task is successfully done.

# Instructions
1. Do research and gather information about the topic.
2. Create an outline of the text (6 parts, 6 subheadlines).
3. For every point in outline:
- do relevant research (advancedWebSearch) to support your writing
- write a paragraph around 200 words (every paragraph HAS to be below 220 words)
- repeat instruction 3 until all outline paragraphs are written
4. Combine all the paragraphs together.
5. Optimize the text for SEO: include keywords as described in "SEO optimization" section below. Reflect on the first SEO optimization output and improve SEO keywords integration again to make sure the SEO keywords are included correct number of times, within the specified density ranges.
6. Output the final SEO-optimized text with headlines and professional formatting as the last step. The final blog post NEED TO have at most 1200 words (below 1200 words).

# SEO optimization
1. Include following SEO keywords:
- PRIMARY: openai api compatible, custom ai chat
- SECONDARY: custom ai, ai model, llm model
2. When performing SEO optimization:
- for every primary keyword make sure it has density of 2-3%, e.g. for text with 1000 words it appears 20-30 times
- for every secondary keyword make sure it has density of 1-2%, e.g. for text with 500 words it appears 5-10 times
- make sure every keyword is included enough number of times

This system instruction is highly customizable to meet your specific AI content writing needs:

  • Adjust content structure: You can modify the "6 parts, 6 subheadlines" to create shorter or longer content with more or fewer sections

  • Customize paragraph length: Change the "paragraph around 200 words" limit to fit your preferred writing style (shorter for more scannable content, longer for in-depth analysis)

  • Set total word count: Modify "at most 1200 words" to match your specific content requirements (500-word landing pages, 2000-word guides, etc.)

  • Fine-tune SEO parameters: Adjust keyword density ranges (2-3% for primary keywords, 1-2% for secondary) based on your SEO strategy and industry best practices

Step 2: Create Your Mission Prompt

Once your system instruction is set, you'll need a mission prompt that specifies what you want your AI writing app to create. Here's the template we use:

# Task
- Write blog post about [[topic]].

# Task details
- Incorporate relevant facts from the web search results into final blog post. Especially statistics from authoritative sources, if available.
- Cite sources and information from sources you have used at the very end.

# Brief
## Brand Voice and Tone
BrowseWiz's voice should reflect intelligence and expertise, demonstrating a deep understanding of AI assistance in these areas.
Here's a breakdown of the voice and tone aspects:
### Voice
Approachable: Avoid overly technical jargon or complex language. Keep it clear, concise, and easy to understand.
Enthusiastic: Convey excitement and passion for AI agents and automation, inspiring users to explore creating agentic workflows.
Witty (occasionally): Injecting humor where appropriate can make the interaction more engaging and memorable, but avoid being overly playful or sarcastic.
Professional

### Tone
Mostly informal and conversational: Use a casual tone that feels natural and relatable, avoiding overly formal language.
Helpful and informative: Provide clear and concise information, answering user queries effectively.
Inspiring and motivational
Adaptable

## Professional Voice Elements
Expert & Knowledgeable: Demonstrate deep understanding of AI assistance for learning, research, and professional work
Trustworthy: Convey reliability and credibility in all communications
Precise: Deliver information with clarity and accuracy
Solution-oriented: Focus on practical outcomes and problem-solving
Balanced: Maintain professionalism while remaining approachable
Consistent: Ensure uniform messaging across all touchpoints
Authoritative: Communicate with confidence without being domineering
Professional Tone Applications
Clear & Concise: Use straightforward language that respects users' time
Respectful: Address users with appropriate formality in professional contexts
Measured: Maintain composure and thoughtfulness in all communications
Structured: Present information in organized, logical formats
Responsive: Adapt tone based on context while maintaining professional standards
Intelligent: Demonstrate depth of knowledge without overwhelming users
Purposeful: Ensure all communications serve a clear functional goal

The mission prompt offers extensive customization options for your best AI tool for content writing workflow:

  • Topic customization: Replace "[[topic]]" with any subject or description you need content about

  • Task details adjustment: Add specific requirements like word count, audience level, or content format

  • Brand voice personalization: Modify the voice and tone section to match your own brand guidelines instead of BrowseWiz's

  • Industry-specific instructions: Add sections about compliance requirements, terminology preferences, or citation styles

  • Content goals: Specify whether the content should educate, persuade, entertain, or serve another purpose

Step 3: Enable the Right Tools

For your AI content writing agent to function effectively, it needs access to appropriate tools:

  1. Web Search: Enable BrowseWiz's built-in web search tool to ensure your content includes up-to-date information

  2. Planning Tool: Activate BrowseWiz's planning capability to help your agent break down the writing process and call the planNextStep function after each paragraph

  3. (Optional) Custom Webhook: If you have specific data sources or APIs, you can add them via BrowseWiz's webhook functionality or a remote MCP server

Step 4: Add Custom Model

For our AI agent we have used Claude 3.7 Sonnet added via OpenRouter platform. Read how to add a custom AI model.

Step 5: Execute and Refine

Now simply click "Run" and watch your AI writing app work through the entire process:

  1. Research phase: Gathering current information about your topic

  2. Planning phase: Creating a structured outline with 6 parts and SEO considerations

  3. Writing phase: Crafting each section while naturally incorporating keywords

  4. Combination phase: Putting all paragraphs together into a cohesive piece

  5. SEO optimization: Ensuring your primary keywords reach 2-3% density and secondary keywords hit 1-2% density

  6. Final formatting: Delivering a polished, ready-to-publish piece under 1200 words

The result? A professionally written, SEO-optimized blog post created without you having to write a single paragraph, thanks to the best AI tool for content writing available today.

Customizing Your Content Writing Agent for Specific Needs

The power of BrowseWiz's AI content writing system lies in its flexibility. Here are ways to customize beyond the basic system instruction and prompt:

Keyword Optimization Strategies:

  • Adjust keyword density: Modify the 2-3% primary keyword density and 1-2% secondary keyword density based on your SEO strategy

  • Change keyword categories: Add tertiary keywords with lower density requirements (0.5-1%)

  • Target specific content sections: Instruct the agent to use certain keywords in headers, others in body content

Content Structure Variations:

  • FAQ format: Change the outline instruction to create question-based headers with detailed answers

  • Listicle style: Modify the structure to create numbered lists with supporting content

  • Tutorial format: Adjust the structure to follow step-by-step instructions with explanations

Brand Voice Customization:

The Brief section of the mission prompt can be completely rewritten to match your specific brand voice. For example:

# Brief
## Brand Voice and Tone
[Your Brand]'s voice should be:
- Authoritative but approachable
- Data-driven with practical insights
- Slightly technical but explained simply
- Solution-focused and actionable

The Results: Beyond Just Content Generation

When you implement your BrowseWiz AI content writing agent with these customized instructions, you'll notice benefits extending far beyond just having another piece of content:

  • Time savings: What might take hours of research and writing now happens in minutes

  • Consistency: Maintain the same high-quality standards across all your content

  • SEO performance: Properly structured content with strategic keyword placement at precisely controlled density levels

  • Scalability: Create content for multiple topics without proportional time investment

Start Building Your Content Writing Agent Today

Creating AI content that actually performs well in search engines while engaging readers isn't just about having an AI writing app—it's about having an AI agent that follows a systematic approach to content creation with proper research, structured writing, and precise SEO optimization.

With BrowseWiz, the best AI tool for content writing you'll find, you can build this agent using the system instruction and mission prompt templates provided above. No coding required, no expensive platform subscriptions—just smart prompting and the right configuration.

Ready to transform your content creation process with professional AI content writing? Install BrowseWiz today and start building your own AI content writing agent in minutes.