Pairwise Desk — a PICT model in, the pairwise test suite out, proven in your browser

Paste a Microsoft PICT model (parameters, values, ~negative values, aliases, weights, sub-models, IF/THEN constraints) and your browser generates the pairwise or t-wise test suite, proves every achievable tuple is covered and every test obeys every constraint, lists the excluded tuples and exports CSV, Markdown and JSON. Then a test designer reviews the model against your feature description as operations the browser applies and re-generates, or names every generated test with steps and an expected result; every figure is reconciled against the engine. Derived from the agent skill @sickn33/pypict-skill (PICT Test Designer, omkamal/pypict-claude-skill) over Microsoft PICT's model language.

Every public app is built from a security-scanned skill and must pass a clean scan — skill and frontend — before it can be listed. Have a skill of your own? Turn it into an app — or read the step-by-step walkthrough.