Focused exercises · immediate feedback

Sharpen one skill at a time.

Pick a format, solve from real engineering evidence, and get a clear explanation while the pattern is still fresh.

Choose your session

What do you want to get better at?

No setup. No passive videos. Every format asks you to make a debugging decision.

Spot the signal

Short prompts for bug patterns, risky diffs, value tracing, safe patches, and clean reproductions.

Catch it before merge

Read a realistic change, mark the risky lines, and make the call: approve, test, or block.

Find where the value goes

Follow requests, ownership, and data flow through an unfamiliar codebase without reading every file.

Turn red builds green

Use logs, workflow files, and repo evidence to isolate the first meaningful failure.

Make the safest first move

Correlate logs, metrics, traces, and timelines to explain the failure and choose a mitigation.