codehealth.js

Code Health - Prevent Software Entropy

Your ultimate code health visibility tool to help prevent software entropy.

Code Health is a powerful open-source extension for Visual Studio Code that enhances your visibility of code smells while you develop.

Code Health Demo

A VS Code workspace with at least one tsconfig.json or jsconfig.json
TypeScript or JavaScript project (monorepos with per-package tsconfigs are supported)

Install Code Health by clicking install on the banner above, or from the extensions side bar in VS Code by searching for Code Health.

Monitor overall codebase health with the healthbar that tracks how much of your code smells unwell.
Drill-down to unwell code with the list of smells grouped by smell type and file.

Smell	What it catches	Powered by
Dead code	Unused exports and unresolved imports	Fallow + TypeScript compiler
Duplicate code	Identical or near-identical blocks duplicated across files	Fallow
Long parameter lists	Functions exceeding the maximum parameter count	Oxlint
Barrel files	Index files that only re-export from other modules, degrading build performance and tree-shaking	TypeScript AST

Note: Some results may be false positives. Use your judgement before acting.

Setting	Type	Default	Description
`codehealth.entry`	`string[]`	`[]`	Entry point file paths (glob patterns) passed to fallow for dead code analysis. Exports in these files are treated as used, so fallow won't report them as unused.

Found a bug? Have a feature request? Reach out on our GitHub Issues page.