Hiring Fairness & Selection ROI

Eval-integrity statistics for AI benchmark claims — multiple-testing correction, power/MDE for model gaps, judge-bias and leaderboard-rank checks. Catches a benchmark number that won't survive a second look.

Checks whether a number is real or just noise: peek-safe A/B tests you can look at as often as you like without inflating false positives, two-sided change detection, and a guard for when a metric moved only because its sample size did. Zero dependencies, standard library only.

Deterministic Odoo ERP calculators: implementation, migration and upgrade cost, ROI and TCO, US/Canada/EU sales tax and VAT, Canadian payroll source deductions, and inventory maths (reorder point, safety stock, EOQ, landed cost, OEE). 24 tools, each a pure function, the numbers are arithmetic rather than a model's guess. Hosted remote server, no install and no API key; a stdio bridge is included

Enables statistical validation of whether a trading backtest’s edge is real using bootstrap-resampling and reshuffling Monte Carlo methods, including confidence intervals, drawdown-path percentiles, expected value calculations, and prop-firm challenge pass-probability simulation. It also compares multiple win-rate/risk-reward geometries by simulated pass rate.