Paths

Exercises in an order that builds a habit. Pick a path, solve them one after another, and the next one is always a click away.

• Review 101

  The defects AI assistants leave behind most often, one of each kind. Start here if you review AI-written code and want a reliable checklist.

  9 exercises · ~56 min

• Security for AI code

  Validation that looks right and is not: redirects, paths, origins, escaping and parsing. Each exercise is a hole an assistant opened while doing exactly what it was asked.

  2 exercises · ~13 min

• Write tests that fail

  The assistant wrote the code and the tests, and everything is green. Your job: write the test that should have failed. Happy paths, tautologies, missing boundaries and over-mocking.

  2 exercises · ~13 min