Can you explain what you built?

Read code, defend a decision, diagnose a bug, or review your project.

Work through a case in your own words, then compare your reasoning with the review guide. Your self-assessment helps you choose what to practise next.

8 guided cases

Code walk

Trace a small function, explain a design choice and predict what breaks.

Design review

Explain a choice, its alternative and the condition that would change your mind.

Debug lab

Start with a symptom, gather discriminating evidence and propose a focused fix.

Ship review

Review a small project from brief to recovery plan, with evidence at each step.

These are guided exercises with written review guides. Self-assessments reflect your own judgement and are not an automated assessment or professional certification.