26d (edited) • Vibin' 💬
Creator Prompt vs. Runtime Prompt
When you build an app, there are actually two completely different "AI layers" at play:
1) The Builder Prompt (What you tell your AI): This is the instruction you give to the Lovable, Claude Codex, Codex, etc. chat interface to build your UI, database tables, and logic (e.g., "Build me a fitness tracking dashboard").
2) The Runtime Prompt (The Engine Inside Your App): This is the hidden system instruction given to the AI component inside your live app (e.g., the prompt that tells the chatbot or form analyzer how to behave when your end-user interacts with it).
Most people never look at that runtime prompt and it's usually not good. Coding AI often generates a generic text prompt for your app's internal AI features. If you want deterministic, rock-solid outputs that don't vary wildly, you have to hand-craft that runtime prompt using a strict JSON structure.
Plain language prompts leave room for the AI to guess the format, tone, and logic. A JSON structure acts as a rigid cage for the AI's logic. It forces the AI to process variables as absolute rules rather than casual suggestions.
Instead of telling the AI:
"You are a helpful business coach. Analyze this form input and give feedback. Be concise."
A structured JSON approach looks like this:
{
"system_role": "Expert Business Analyst",
"input_data": {
"form_fields": ["revenue", "expenses", "goals"]
},
"processing_rules": [
"Calculate net margin immediately.",
"Identify top two cost-saving opportunities."
],
"output_format": {
"summary": "Strict 2-sentence maximum",
"metrics": ["net_margin_percentage"],
"action_steps": "Array of exactly 2 items"
}
}
When the AI inside your app reads this JSON, it treats it like code documentation. The variance drops to near zero because the boundaries are explicit.
You don't need to know how to do this! You just need to be able to tell the AI that this is how you need it to be it in the backend: in JSON for anything runtime.
3
0 comments
Creator Prompt vs. Runtime Prompt
powered by
skool.com/vibe-code-on-the-cheap-6934
Build your own apps w/ Claude Code, Codex + Lovable. Solve your exact friction, save tokens, and run them forever for $0. Use SEARCH BAR for help.
Suggested communities
Powered by