Lovable Prompts: A Practical Guide for Beginners

1. Write an app brief before the first prompt

For the task tracker, the user is an individual organising their own work. The core journey is creating a task, changing its status and finding it again after reloading. Required fields are title, status and optional due date. Collaboration, payments and notifications are out of scope. Keeping those decisions explicit makes it easier to judge the result and prevents a simple app from turning into an unfinished collection of features.

Use fictional sample tasks initially. Do not paste customer records, passwords or private credentials into the conversation. Decide whether the app needs accounts: a private tracker with stored tasks needs ownership and access checks, not merely a login screen.

Build a personal task tracker. The main screen lists tasks with a title, status (To do, Doing, Done) and optional due date. Let the user add, edit and delete tasks and filter by status. Start with fictional sample data. Do not add payments, collaboration or notifications. Include empty states, required-title validation and a confirmation before deletion. Keep the layout usable on phones.

2. Check behaviour, not just the preview

Try the complete journey: add a task, edit its title, change its status, filter the list and delete it. Submit an empty title and check for a clear error. A screen can look finished while a filter silently fails or a save button only changes temporary state. Write down the expected result for each action and compare it with what actually happens.

When you connect persistent storage, repeat the checks after a reload and a fresh sign-in. If accounts are involved, create two test users and verify that each sees only their own tasks. An empty list for a new user is expected; another user's records are not. These checks are examples of acceptance criteria, not evidence that the app has passed a security audit.

3. Ask for one focused change at a time

Once the core journey works, add a useful refinement such as sorting by due date. Name what should change and what must remain unchanged. Avoid combining a redesign, a storage migration and a new feature in the same request: if something breaks, it becomes harder to locate the cause.

Add sorting by due date to the task list. Put tasks without a due date last. Preserve the existing filters, task fields and create/edit/delete behaviour. Check that sorting still works when a task has no due date and when two tasks share a date. Do not redesign the screen or add other features.

4. Describe bugs with a reproducible example

A useful bug report contains the action, expected result, observed result and smallest way to reproduce it. 'The app is broken' leaves the builder guessing. If a task disappears, say which filter was selected and whether the problem persists after reloading. Include an error message when available, but remove private information.

Reproduce this bug: create a task with status Doing, select the Doing filter, then edit its title. Expected: the task remains visible with its new title. Observed: it disappears until the page reloads. Find the cause and make the smallest fix. Preserve the current layout and unrelated features, then repeat those steps to verify the fix.

5. Publish only after the important checks pass

Before sharing the app, verify storage, account separation, validation, loading states and failure messages. Check it on a phone and make sure a failed save does not display a false success. Review who can read or change each record and keep secrets out of browser code. If the app will handle sensitive data, obtain a qualified review rather than relying on a prompt alone.

After publishing, repeat the core journey at the public URL: preview success does not prove that production configuration is correct. Keep a record of what you tested and the changes you made. Your next prompt should address an observed gap—not add complexity merely because the builder can generate it.

Frequently asked questions

What should my first Lovable prompt include?

State who the app is for, its main action, required data, expected behaviour and what is out of scope. Add concrete checks such as rejecting an empty task title. Start with one usable journey rather than a long feature list.

Should I paste all my requirements into one prompt?

Give the overall brief first, then implement and verify focused changes. A clear overview helps maintain direction, while smaller changes make regressions easier to diagnose.

Can a good prompt guarantee a secure app?

No. Prompts help express requirements, but permissions, secret handling, input validation and the published app must be checked. Sensitive or high-impact applications need qualified security review.

How do I avoid repeatedly asking for the same fix?

Give exact reproduction steps and ask for the cause, a minimal correction and verification of those same steps. Preserve unrelated working behaviour and keep a record of the expected result.

Sources and further reading

• Lovable: prompting best practices
• Lovable: from idea to app