Fixing Misinterpreted Feature Requests in Lovable

Why Lovable builds something different from what you intended

When you describe a feature in natural language, there is inherent ambiguity. The word 'sidebar' could mean a left navigation panel, a right-side info panel, or a collapsible drawer. 'Make it look professional' could mean dark mode, minimalist design, or corporate blue colors. Lovable's AI picks the interpretation it thinks is most likely, which may not match yours. Misinterpretations are most common with visual features and UX flows. The AI may understand the technical requirement correctly but implement it with a completely different visual style or interaction pattern than you imagined. This is not a bug — it is the nature of translating natural language to code. The most effective prevention is Plan Mode, which lets you discuss the feature with the AI before any code is written. In Plan Mode, the AI describes what it plans to build, and you can correct any misunderstandings before they become code. This saves credits and avoids the frustration of undoing unwanted changes.

• Subjective terms (better, modern, clean) leave too much room for AI interpretation
• No reference images or layout descriptions to anchor the visual design
• The prompt describes what the feature should do but not how it should look or behave
• Complex user flows are described in one sentence instead of step-by-step
• The AI lacks context about the overall app design and makes decisions that clash with existing patterns

Error messages you might see

Before you start

• A Lovable project where the AI generated something different from what you wanted
• A clear picture (even mental) of what the feature should actually look like and do
• Familiarity with Plan Mode and version history for iterating on corrections

How to fix it

// Sending directly in Agent Mode:
// "Add a notification system to the app"
// Result: AI builds email notifications when you wanted in-app toasts

// Plan Mode first:
// "Plan a notification system for my app. I want:
// - Toast notifications that appear top-right for 5 seconds
// - Notification bell icon in the header showing unread count
// - Dropdown list of recent notifications on bell click
// Do NOT build email notifications. This is in-app only."
//
// Review plan → correct if needed → Implement the plan

// Subjective prompt:
// "Create a modern, clean dashboard with a professional look"

// Concrete prompt:
// "Create a dashboard in @src/pages/Dashboard.tsx with:
// - White background, 24px padding on all sides
// - Top row: 4 stat cards in a horizontal grid with subtle shadows
// - Below stats: a data table with alternating row colors
// - Right side: a 300px wide panel showing recent activity
// - Use the existing theme colors from Design view > Themes
// - Font: keep the current font, do not change it"

// Repeating the original vague prompt:
// "I said I wanted a sidebar, please fix it"

// Specific correction:
// "The notification panel in @src/components/NotificationPanel.tsx
// currently opens as a centered modal. Change it to:
// - Slide in from the right side of the screen
// - Width: 360px
// - Full height of the viewport
// - Semi-transparent overlay behind it
// - Close button in the top-right corner
// Keep all existing notification items and functionality."

// One massive prompt trying to describe everything perfectly
// Result: 70% correct, 30% wrong, hard to fix

// Iteration 1: "Create a basic notification panel in @src/components/NotificationPanel.tsx"
// Review → mostly good, wrong position
//
// Iteration 2: "Move the panel to slide in from the right side instead of appearing as a modal"
// Review → position fixed, missing close button
//
// Iteration 3: "Add a close button in the top-right corner of the notification panel"
// Review → complete and correct

Complete code example

1# Feature Request Interpretation Rules
2
3## When I describe a visual feature:
4- Ask clarifying questions if the description is ambiguous
5- Default to the existing app's visual style (colors, fonts, spacing)
6- Use shadcn/ui components unless I specify otherwise
7- Follow the existing layout patterns in the app
8
9## When I say:
10- 'sidebar' → left-side navigation panel, 280px wide, full height
11- 'modal' → centered overlay dialog with backdrop
12- 'panel' → side panel that slides in from the right
13- 'drawer' → bottom sheet on mobile, side panel on desktop
14- 'card' → bordered container with padding and optional shadow
15- 'toast' → temporary notification in top-right corner
16
17## Visual defaults:
18- Background: match existing theme
19- Border radius: rounded-lg (8px)
20- Shadow: shadow-sm for cards, shadow-lg for modals
21- Animation: 200ms transitions, respect prefers-reduced-motion
22- Spacing: 16px padding, 12px gap between elements
23
24## When in doubt:
25- Use Plan Mode to describe what you intend to build
26- Show me the plan before writing any code
27- If I say 'that is not what I meant,' revert and ask for clarification

Best practices to prevent this

• Always use Plan Mode for new visual features to verify the AI's interpretation before building
• Replace subjective terms (modern, clean, professional) with specific descriptions of colors, spacing, and layout
• When correcting a misinterpretation, describe what is wrong and what it should be, not just 'fix it'
• Include explicit layout terms: 'two-column grid,' '300px wide panel on the left,' 'centered vertically and horizontally'
• Iterate in small steps instead of trying to get everything right in one prompt
• Add visual term definitions to AGENTS.md so the AI consistently interprets your vocabulary
• Reference existing components as examples: 'style it like the existing UserCard component'
• If the misinterpretation is too severe, revert to the previous version and start fresh with a better prompt

Still stuck?

Copy one of these prompts to get a personalized, step-by-step explanation.

Related error patterns