PromptCraft Series #3 Lovable & Replit: How to Start Prompting Without Coding

✨ PromptCraft Series #3

"Lovable & Replit: How to Start Prompting Without Coding"

🗕️ New post every Monday

🧠 Quick Recap

• ✔ Why prompt engineering is the new no-code skill
• ✔ The anatomy of a perfect prompt

Now, let’s get practical and start building.

Today, you’ll learn how to:

• Set up your first prompt block
• Connect to OpenAI (or other LLMs)
• Customize your prompt workflows without writing code

🔹 1. Setting Up Your First Prompt Block

🏗 On Lovable:

• Head to your app workflow.
• Drag a Prompt or AI block.
• Type your prompt using the structure from Blog #2:

"Act as a [role]. Your task is to [task]. Respond in [format]..."

Example prompt:

"Act as a social media strategist. Your task is to write a catchy Instagram caption for a new fitness app. Keep it under 20 words. Tone: Energetic and friendly."

🏗 On Replit:

• Go to your Replit project.
• Install the OpenAI package.
• Create a prompt string:

const prompt = "Act as a social media strategist..."; 

• Use the OpenAI API call to send this prompt.

🔹 2. Connecting OpenAI or Other LLMs

On Lovable:

• Go to Settings > Integrations.
• Select OpenAI or Anthropic Claude.
• Paste your API key.

On Replit:

• Get your OpenAI API Key.
• Authenticate in your code:

const configuration = new Configuration({
    apiKey: process.env.OPENAI_API_KEY,
});
const openai = new OpenAIApi(configuration);

Now you can send prompts and receive AI-generated responses.

🔹 3. Drag-and-Drop Workflows + Prompt Customization

On Lovable:

• Connect AI blocks to user inputs, conditional logic, API calls, and outputs.
• Add variables inside prompts (e.g., [user_name], [product_description]).
• Set temperature, max tokens, and other settings easily.

On Replit:

• User input ➔ Prompt ➔ LLM ➔ Output display.
• Change response length and creativity (temperature).
• Use if/else logic or add multiple prompt versions.

📝 Pro Tip: Always Test and Iterate

Don’t settle for your first output. Tweak the wording, formatting, and settings to find the sweet spot where the AI gives consistently helpful results.

📈 Exercise for This Week: Your First AI Flow

• Choose a simple task (e.g., summary or greeting message).
• Set up a prompt block in Lovable or Replit.
• Test different versions of your prompt.
• Try changing the temperature to see how creativity changes.

🔳 Coming Up Next Week

🔜 Blog #4 – “Crafting Prompts for Chatbots and Conversational AI”
Learn how to create chatbots and virtual assistants that handle multi-turn conversations, remember context, and feel natural.

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