This builds structured interview loops with competency mappings, generates scored question banks, and runs statistical calibration analysis to catch interviewer bias. You get role-specific templates for eng/PM/design positions with actual rubrics and STAR method questions. The calibration piece is the standout: it flags interviewers drifting more than 0.5 standard deviations from team average and needs at least 10 records to run bias detection. Useful if you're standardizing hiring across a team and tired of every interviewer inventing their own process. The anti-patterns section calling out halo effects and similarity bias is more practical than the usual HR boilerplate.
npx skills add https://github.com/borghei/claude-skills --skill interview-system-designer