Rork AI Not Understanding You? Prompt Failure Pattern FAQ

Rork is powerful because you describe your app in plain language and AI builds it. But write your prompt poorly, and you'll get an app that looks nothing like what you imagined. If you've ever thought "this isn't what I wanted," you're not alone.

This FAQ covers the seven most common reasons Rork's AI produces unexpected results and how to fix them. Master prompting, and your AI conversations transform.

Q1: Vague Instructions Produced Unexpected UI

A: When your prompt is vague, AI makes its own assumptions. The results differ from your vision because your instructions weren't specific enough.

Example of a Vague Prompt

Bad: "Make a ToDo app"

What does AI think this means?
- List view or card view?
- Do we need priority levels?
- Deadline/due date features?
- Reminders?

AI can't read your mind, so it guesses.

The Fix: Write Specific, Detailed Prompts

Good: "Create a simple ToDo list app with these features:

Main screen:
1. Text input field to enter tasks
2. 'Add' button that adds the task to the list
3. Each task has a checkbox on the left and delete button on the right
4. Completed tasks show a strikethrough line

Design:
- Clean white background
- Blue 'Add' button
- List format layout
- Tap checkbox to mark complete

Colors:
- Main color: blue (#007AFF)
- Text: black
- Completed text: gray"

:::tip Good prompts always include:

• Screen layout (how information displays)
• User interactions (what happens when they tap)
• Colors (specific hex codes, not "modern blue")
• Navigation (how users move between screens) :::

Q2: Complex Instructions Result in Errors or Incomplete Generation

A: Overly complex prompts (too long, too many features) overwhelm AI, causing errors or partial output.

Example of an Overly Complex Prompt

Bad: "Build a social media app where users create posts,
view feeds, like/comment/share. Add real-time notifications,
profiles, messaging, stories, follow systems, hashtag search,
threads, video uploads, image filters, geolocation, blocking..."

AI can't handle all this. You'll get a broken or partial app.

Solution 1: Add Features Incrementally

Step 1: Build the basics
"Create a simple notes app where users can create, edit, and delete notes."

Step 2: Check it works, then add authentication
"Add login/signup to the notes app."

Step 3: Add sharing
"Add ability to share notes with other users."

Solution 2: Keep Prompts Concise

Good: "Create a chat app where users send and receive text messages.
Show chat history above, with a text input and send button below.
White background, simple design."

Key principle: Start simple, improve iteratively.

:::warning Don't request 5+ complex features in one prompt. AI focuses on the first 2-3 and ignores or breaks the rest. :::

Q3: Design Specifications Weren't Applied. Generated UI Looks Different

A: Vague design instructions produce unexpected results. You must be explicit about colors, sizes, layouts, and spacing.

Example of Vague Design Instructions

Bad: "Make it look modern"
→ Your "modern" ≠ AI's "modern"

Bad: "Make the buttons bigger"
→ How big? Full width? 50%? Nobody knows.

The Fix: Precise Design Specs

Good: "Follow these exact design specifications:

Color scheme:
- Background: white (#FFFFFF)
- Main button: blue (#007AFF)
- Text: dark gray (#333333)
- Secondary text: light gray (#999999)

Layout:
- Buttons stretch full width (16px padding on sides)
- Text left-aligned
- 24px gap between sections

Typography:
- Titles: 22px, bold
- Body: 16px, regular
- Secondary: 14px, regular"

:::tip When specifying design:

• Use exact hex color codes
• Specify font sizes in pixels
• Give padding/margin in pixels
• Describe layout clearly (flex, grid, etc.)
• Include shadows or borders if needed :::

Q4: Code Modification Instructions Didn't Work. Changes Were Ignored or Partial

A: When modifying existing code, you must clearly specify what to change, where, and why.

Example of Vague Modification Requests

Bad: "Improve this code"
→ Improve what? Performance? Readability?

Bad: "Change the button color to red"
→ Which button? If there are five buttons, which one?

The Fix: Be Specific

Good: "Change the 'Submit' button on the main screen from blue
(#007AFF) to red (#FF0000). Keep the text white."

Or show code context:

"Modify this component. Current code:

<Button style={{ backgroundColor: '#007AFF' }}>
  Send
</Button>

Change to:

<Button style={{ backgroundColor: '#FF0000' }}>
  Send
</Button>"

:::warning When requesting modifications, specify "what," "where," and "how." If multiple changes are needed, number them. :::

Q5: Database Integration Instructions Failed. API Calls Aren't Implemented

A: Database and API instructions must specify the service, data schema, and authentication method.

Example of Vague Database Instructions

Bad: "Save user data to the database"
→ Which database? Firebase? MongoDB? PostgreSQL?
→ Which fields? All of them?

The Fix: Specify Backend Clearly

Good: "Implement Firebase Realtime Database integration:

1. When user enters a task and clicks 'Add', save to Firebase
   tasks collection

2. Data structure:
   {
     id: "unique-id",
     title: "Task title",
     completed: false,
     createdAt: "2026-03-21T10:00:00Z"
   }

3. Initialization:
   - Firebase credentials from environment variables
   - Project ID: com.example.app

4. Error handling:
   - Show 'Failed to save' if save fails"

:::tip Database integration prompts must include:

• Backend service name (Firebase, Supabase, etc.)
• Data structure in JSON format
• Authentication method
• Error cases :::

Q6: Animation/Gesture Instructions Were Ignored. UI is Static

A: Animation requests must specify the movement, duration, and trigger explicitly.

Example of Vague Animation Instructions

Bad: "Add smooth animations"
→ What kind of movement? Fade? Slide?
→ Which elements?
→ How long?

The Fix: Specific Animation Details

Good: "Implement these animations:

1. On screen load:
   - List items fade in from bottom
   - Duration: 500ms
   - Each item delayed 100ms from the previous

2. On button tap:
   - Button scales to 0.9 and back to 1 in 100ms
   - Background color transitions in 300ms

3. Swipe gesture:
   - Left/right swipe switches screens
   - Screen slides in the swipe direction
   - Duration: 300ms"

:::warning Animation specs must include:

• Start and end states
• Duration in milliseconds
• Easing function (easeInOut, linear, etc.)
• What triggers the animation :::

Q7: Generated Code Has TypeScript Errors

A: Rork generates TypeScript-compatible code, but type definitions can be incomplete.

Common TypeScript Error Causes

// Bad: no type for data parameter
const handlePress = (data) => { // What type is 'data'?
  setData(data);
};
 
// Error: Property 'name' doesn't exist on type 'never'
const user = undefined;
console.log(user.name); // Error!

Solution 1: Request Type Definitions Upfront

Good: "Use TypeScript. Define these types:

interface Task {
  id: string;
  title: string;
  completed: boolean;
  createdAt: Date;
}

interface User {
  id: string;
  name: string;
  email: string;
}

Specify types for all function parameters and return values."

Solution 2: Fix TypeScript Errors After Generation

If generated code has TypeScript errors, point them out:

"Fix this TypeScript error:

Error: Property 'name' does not exist on type 'unknown'

Current code:

const handleUserData = (data: unknown) => {
  console.log(data.name); // Error
};

Fix:

interface UserData {
  name: string;
  email: string;
}

const handleUserData = (data: UserData) => {
  console.log(data.name); // OK
};"

:::tip To avoid TypeScript errors from the start, add to your prompt: "Specify types for all values and function parameters." :::

Looking back

Master Rork prompting by following these principles:

1. Be specific and detailed — eliminate ambiguity; state everything you want
2. Build incrementally — split big features into smaller steps
3. Specify design precisely — use exact color codes, pixel sizes, layouts
4. Clarify backend requirements — state the service, data structure, authentication
5. Show code context for modifications — present before/after code
6. Detail animations exactly — specify start/end states, duration, trigger
7. Request type definitions — prevent TypeScript errors upfront

Follow these principles, and your generated code quality improves dramatically. Prompting is a skill that improves with experience, so experiment fearlessly and iterate.