Product guide

One attempt, from evidence to feedback

Use this guide to understand the practice loop before opening the Flutter app.

const theory = inspect(symptom);
const change = test(theory);
assert(change.explains(symptom));

1. Choose a challenge

Open a curated public challenge or let the app select one for your current settings.

2. Inspect before editing

Read the code and expected behavior. Identify the smallest hypothesis that explains the symptom.

3. Change and explain

Edit the solution and keep your reasoning explicit; code blocks remain left-to-right in every locale.

4. Review the feedback

Compare the result with feedback and carry the useful observation into the next attempt.

5. Read your Learning Profile

Use editing patterns, hint timing and session signals to reflect on how you debug. The profile describes consented practice; it does not set your rating or difficulty.