Can Codility detect AI use in a coding assessment?
Short answer: a Codility assessment can include integrity or proctoring features when the employer has enabled them, but there is no single configuration that applies to every candidate and every test. Codility's own Assessment Integrity Features documentation describes configurable review tools. The invitation, consent screen and instructions for your specific assessment are the source of truth.
What the question should mean
People often ask whether a platform can detect an AI answer as if it were one switch. In practice, separate three questions: what the employer configured, what signals the assessment records, and how a recruiter reviews them. A signal is not automatically a conclusion about intent. The same careful distinction applies to CodeSignal, HackerRank, and CoderPad.
What can be configured for a Codility assessment
Codility publicly documents assessment-integrity and proctoring features, including behavioural monitoring options and additional review signals. Which features are active depends on the employer's assessment setup and, in some cases, on the assessment product or plan. Do not assume that another candidate's test used the same settings as yours.
If an assessment asks for permissions such as camera, microphone or screen sharing, read the prompt before accepting it. If the invitation is unclear, ask the recruiter what is monitored, what tools are permitted, and whether documentation or accessibility tools are allowed.
What a review signal does and does not prove
A platform can record events relevant to an assessment's integrity policy, but an event still needs context. A lost connection, an accessibility need, a browser crash or a permitted reference can look different from a normal uninterrupted attempt. That is why a responsible process documents the configuration and leaves room for review rather than treating one event as a verdict.
Equally, do not treat the absence of an obvious warning as permission to use a tool. Employer rules apply even when a platform cannot technically enforce every rule. The practical standard is simple: use only tools the invitation explicitly permits.
How to prepare without creating a policy problem
- Read the invite early. Note the deadline, allowed languages, browser requirements and integrity instructions.
- Run the platform's practice or system check if offered. This checks your environment without consuming the real attempt.
- Prepare your workspace. Close unrelated work, silence notifications and make sure your connection and power are reliable.
- Ask before the test. Ask the recruiter about permitted documentation, accessibility accommodations and any unclear requirement.
- Explain your work honestly. In a live follow-up, be ready to describe decisions, tests and trade-offs in your own words.
For the non-detection part of preparation, see what a Codility assessment can ask and how to prepare for the technical interview.
What not to optimise for
Do not spend preparation time looking for ways around proctoring, browser controls or employer rules. Those tactics can violate the assessment policy and do not improve your ability to explain the code later. Practise the likely problem types, write tests, and ask the recruiter when a rule is unclear. Other platforms work differently: can HireVue detect AI covers one-way video interviews.
Sources
- Codility Support: Assessment Integrity Features — official documentation
FAQ
Can Codility detect AI use?
A Codility assessment can use integrity and proctoring features when the employer configures them. There is no single universal setup, so the invite and assessment instructions are the source of truth for your test.
Does Codility record the screen or camera?
Some assessment-integrity features can require additional monitoring or permissions, but this depends on the employer's configuration. Read the consent prompt and ask the recruiter if the invitation is unclear.
Can a proctoring signal automatically fail a candidate?
A review signal is not the same thing as a final conclusion about intent. Employers set their own process, and context such as technical issues or permitted accommodations can matter.
What tools are allowed in a Codility test?
Only use tools the invitation or recruiter explicitly permits. If documentation, an IDE feature, an accessibility tool or another resource is unclear, ask before you begin.
How should I prepare for a Codility assessment?
Read the invite, complete any offered system check, practise the expected problem types, prepare a quiet reliable workspace, and be ready to explain your code and tests in your own words.