Every developer on CodeJack has completed a real take-home assessment with full process transparency. You'll see exactly how they think, debug, and build — mapped through their git commits and AI conversations. No more guessing if a candidate can actually code.
Code Jack surfaces good engineering practices and anti-patterns from the candidate's session — with evidence from their actual commits and prompts. Compare patterns across candidates to make informed decisions.
Click a pattern to see evidence from the candidate's session
We don't grade candidates — we highlight patterns and situations so you can make your own decision.
Spots bursts of fast commits with minimal gaps — potential copy-paste patterns or AI output accepted without review.
Highlights areas where the candidate went back and refactored — a sign they're iterating on quality, not just shipping.
Surfaces pivotal prompts where the candidate made big structural choices — the moments that shaped the whole codebase.
Shows how the candidate troubleshoots when things break — do they share errors with context, or just regenerate and hope?
Reveals whether the candidate gives detailed, structured instructions or relies on vague one-liners and lets AI guess.
Flags commits that don't map to any uploaded prompt — areas where the reasoning behind the code is unclear.
Every commit, prompt, refactor, and debugging session laid out on a timeline. Spot patterns instantly — where they moved fast, where they paused to think, and where they course-corrected.
“Create a user authentication service using NextAuth with GitHub and Google providers. Include session typing and a protected route wrapper.”
↳ Specified providers, typing, and route protection in one prompt. Shows architectural forethought.
b7c4e9aChose NextAuth with GitHub + Google. Implemented typed session and protected route HOC.
Good — made a clear architectural choice with reasoning.
Click any event to reveal the prompt that drove it
Skip the resume stack. Every developer on CodeJack comes with a full process profile — commits, prompts, patterns, and insights — so you know how they work before you ever speak.
Code Jack generates targeted follow-up questions based on the candidate's actual coding decisions — not generic prompts, but questions rooted in their specific commits and reasoning.
Commit a8f1b4c refactored code that was first written in e9b3d5f. The candidate's prompt explicitly asked to 'extract sorting logic into a hook' — showing proactive separation of concerns.
Code Jack connects every git commit to the agent conversation that drove it. See the full picture — what they asked, what they shipped, and the reasoning in between.
“Create a user authentication service using NextAuth with GitHub and Google providers. Include session typing and a protected route wrapper.”
Specified providers, typing, and route protection in one prompt — architectural decision about auth approach.
“Add middleware to redirect unauthenticated users and set up role-based access for admin routes.”
Extended auth to include middleware and roles — planned for access control early.
Select a commit to see the prompts that formed it
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