Show HN: Assay – a QA CLI that finds bugs with no LLM and no tests written

Category: devtools

Tags: qa, web-testing, browser-automation, cli, deterministic, agent-tools

Score: 7.3/10 (Innovation: 7, Technical: 8, Documentation: 9, Utility: 5)

Assay is a deterministic QA CLI that automatically tests web pages by exercising every control it finds and detecting self-contradictory behavior, without writing tests or using LLMs. It combines browser automation, heuristic rule-based checks, and agent hooks to fit into AI coding workflows, with impressive benchmark results on AI-generated apps.

Target audience: frontend devs, QA engineers, AI coding agent users

Repository: https://github.com/awss1i/assay · Python · MIT · 107 stars

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