Foundry is an opinionated toolkit that centralizes and automates the configuration of code quality tools for JavaScript/TypeScript projects. It bundles and exposes composable ESLint flat configs, Biome configuration, Stylelint configuration, Husky hooks, and lint-staged setup. The CLI (`foundry init`) detects installed frameworks and dependencies (React, Next.js, Jest, etc.), generates tailored config files, and updates package.json scripts. The package primarily serves as a shared, versioned dependency that enforces consistent linting and formatting across multiple projects within an organization. The architecture is a library of configuration objects combined with a thin CLI wrapper, and the code is well-structured, modular, and thoroughly tested.