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Set up a Vibe coding round ​

Available onProEnterpriseand the Pro trial
Who can do thisOwners, admins and recruiters

A Vibe coding round is a separate round for technical roles. The candidate builds or fixes real code in the browser, with an AI assistant if you allow one. You see whether their code passes your hidden checks, the final code and a replay of how they worked.

Vibe coding rounds are on Pro and Enterprise. Each completed round uses 1 credit. It is held when you send the invite, and released if the candidate never starts before the link expires, does no work, or you cancel the round.

For short code questions inside an AI interview instead, see Set up interview questions.

Start from a template ​

  1. Open the job and click Settings > Vibe coding.
  2. Under Set up a Vibe coding round for this job, pick a template. Templates that suit the job title are marked fits this job.
  3. Review the task and change anything you need. See the fields below.
  4. Click Save task.

The templates are:

TemplateKind of roleLanguageTime
Fix a failing orders API endpointBackendPython45 min
Add discount codes to a shopping cartFull-stackJavaScript45 min
Refactor an invoice view componentFrontendJavaScript40 min
Debug a monthly sales report scriptDataPython45 min
Summarize service health from access logsDevOps and SREPython40 min
Fix a pricing bug and add regression testsQAPython30 min

Write your own task ​

  1. Open the job and click Settings > Vibe coding.
  2. Click Write your own.
  3. Fill in the fields below, add your hidden checks and a reference solution.
  4. Click Save task.

The task fields ​

FieldWhat it is
Task nameThe title the candidate sees.
LanguagePython 3 or JavaScript (Node.js). Candidates use the standard library only.
Time limit (min)5 to 180 minutes. The default is 45.
Link valid (hours)1 to 336 hours. The default is 72.
AI assistantFull help answers questions and proposes code changes that the candidate accepts or rejects. Hints only explains errors and gives hints but never writes the solution. Off means no assistant, like a classic take-home in the browser.
Brief (shown to the candidate)The problem and the rules your hidden checks test.
Done meansOne line per point, shown to the candidate.
Reviewer rubricOne line per point, not shown to the candidate. The AI review uses it.
Starter filesThe workspace the candidate starts with. Include visible tests: unittest files named test_*.py for Python, or *.test.js files using node:test for JavaScript.
Hidden checks (not shown to the candidate)Calls into the candidate's code with inputs you choose, compared with your expected values.
Reference solution (never shown to candidates)A correct answer. Hidden checks must pass on it before the task can be sent.

Add hidden checks ​

Hidden checks are the only source of the outcome score. Test runs inside the candidate's workspace can be changed by their own code, so they are shown for information only.

  1. Under Hidden checks, add at least 3 checks. Write each call as module:function for Python or file.js:function for JavaScript. Comparisons are equals, approx, contains, not_contains, length, keys and raises.
  2. Add your Reference solution.
  3. Optional: click Suggest hidden checks to have checks drafted from the reference.
  4. Click Run checks against the reference. Every check must pass. Fix any that fail before you save.

Only the inputs reach the candidate's sandbox. The expected values stay on Infyva's servers, so they can't be read or faked.

Preview the round ​

Click Preview as candidate to see the brief, Done means and starter files as the candidate will. Hidden checks and the rubric are not shown.

Send the round to candidates ​

  1. On Settings > Vibe coding, click Send to candidates.
  2. Tick the candidates, or Select all who can be invited. You can send to up to 50 at once.
  3. Click Send with the count, for example Send 3 invites.

Each candidate gets an email with their own link. Replies go to you. If an email didn't go out, click Copy link and send it yourself.

You can also send a round to one candidate from the job's Candidates tab: open the candidate, click Send (or Send interview or Vibe coding) and choose Vibe coding.

If Send to candidates is greyed out, the task isn't ready yet, for example because its checks don't pass. The page says why.

Track rounds you sent ​

Rounds sent for this job lists each candidate with a status: Invited, In progress, Submitted, Expired or Cancelled. Click Open report on a submitted round, or Cancel on one that hasn't finished. A candidate who asked for a different time shows asked for a new time.

To remove the round from the job, click Edit task, then Remove Vibe coding round.

Next steps ​