React Doctor flagged 1,249 issues in a real React app; only 5 were worth fixing

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React Doctor, a zero-install linter for React codebases, was run against a production single-page app built with React 18, Vite, and TypeScript spanning roughly 50 routes. The tool returned 1,249 findings across security, bugs, accessibility, performance, and maintainability categories, scoring the project 39 out of 100. Of those findings, only five warranted action, including two genuine security vulnerabilities — a token leak in localStorage and a stored XSS sink — that had gone undetected for months. The remaining 1,244 results were largely false positives, low-value noise, or subjective style opinions, yielding a signal-to-noise ratio of roughly 1 in 250. The author concludes React Doctor is useful as a hypothesis generator for developers to investigate manually, but warns against wiring its issue count into CI pipelines.

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