Codility Lab

Skills assessment that produces evidence rather than a score.

Open research on what counts as proof that a person can do the job. Engineering is where we have gone deepest, across almost two decades. AI skills in the roles that now work with AI is newer work, and we publish it as the evidence develops.

Everything here is open. No forms, no gates.

This month
Fundamental tasks delivered as video Live
Device integrity and pattern detection feed the Integrity Risk band Live
Playwright as a task environment Live
Latest release September 2026

Content integrity is a format problem · Everything new in September 2026

A task statement leaks because it is text. Six of Codility's most popular tasks are now narrated and animated instead, and two integrity signals now move the risk band on their own. The September 2026 product update.

Latest from the Lab

Frequently asked questions

What is skills evidence?

Proof that a person can do the job, produced by doing real work, with AI where the job uses it, and scored against a documented methodology. It is what a decision can be defended with when a candidate, a regulator or a client questions it.