Is this git bisect+
No. Bisect marks builds good and bad and hands you a commit. CRUX scans behavior across the range. You get the commit and the lines that caused the change.
Does CRUX run my code+
Only the behaviors you declare. Each run stays inside a sealed sandbox with pinned inputs.
What does it cost+
The CLI is free forever. Hosted watch mode becomes a paid tier later.
Is AI in the loop+
Not in the verdicts. Every finding is deterministic and replayable. A model may summarize a report later. It never writes the blame.
When does it ship+
When the first minimized causal diff works on a real repo. That is the gate. Join the list and we email you when it opens.