e18e/cli is a command-line tool that analyzes JavaScript and TypeScript projects for packaging issues, dependency health, and opportunities to replace dependencies with lighter or native alternatives. It runs multiple checks: publint for publishing best practices, dependency replacement suggestions from curated manifests (native, preferred, micro-utilities), core-js polyfill analysis against declared engine ranges, duplicate dependency detection, and web feature codemod suggestions. The CLI also includes a `migrate` subcommand that can automatically apply codemods to rewrite imports for selected replacements. The architecture is plugin-based: each analysis is a self-contained `ReportPlugin` that receives an `AnalysisContext` and returns messages and stats, aggregated by a `runPlugins` orchestrator. The tool uses an abstract `FileSystem` interface with a `LocalFileSystem` implementation, making it extensible for custom environments. Output is either an interactive TUI via @clack/prompts or JSON. This is a pre-1.0 project, actively developed with good code quality and comprehensive tests.
This is an ESLint plugin that provides a single rule, `ban-dependencies`, which flags usage of npm packages that have better alternatives or are redundant. It uses presets (e.g., native, microutilities, preferred) from the `module-replacements` package to suggest replacements. The plugin also supports user-defined module bans and allowlists, and can lint `package.json` files to detect banned dependencies. The codebase is written in TypeScript, well-tested, and follows modern ESLint plugin conventions. The repository appears to be superseded by `@e18e/eslint-plugin` as noted in the README, and is likely no longer actively developed.