Tessvia AI testing tool developed from spec to beta in 72 hours

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A developer documented the creation of Tessvia, a new software testing tool. The process began on June 10, 2026, by handing a complete MVP specification to an AI coding environment named Claude Code. Within the first day, a foundational codebase with 11 packages, a Chrome extension, and a functional CLI was established. Over the next two days, the team set up end-to-end testing and selected the product's name, completing a working beta version within a 72-hour timeframe.

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