eslint-plugin-diff

ESLint plugin that filters lint output to only show errors on changed lines of code. Version 2.1.7 actively maintained, semver releases. Differentiators: works with both flat config (ESLint 9+) and legacy config, supports multiple modes (diff, ci, staged), includes CI autodetection with provider-based target branch detection. Ships TypeScript types. Requires eslint >=6.7.0 and node >=14.0.0. Does not provide custom rules, only processors and config presets.