Manage project dependencies across languages including npm install, package versioning, dependency conflicts, security scanning, and lock files. Use when dealing with dependencies, version pinning, semantic versioning, or resolving conflicts.

Dependency Management Table of Contents [Overview]( overview) [When to Use]( when to use) [Quick Start]( quick start) [Reference Guides]( reference guides) [Best Practices]( best practices) Overview Comprehensive dependency management across JavaScript/Node.js, Python, Ruby, Java, and other ecosystems. Covers version control, conflict resolution, security auditing, and best practices for maintaining healthy dependencies. When to Use Installing or updating project dependencies Resolving version conflicts Auditing security vulnerabilities Managing lock files (package lock.json, Gemfile.lock, etc.) Implementing semantic versioning Setting up monorepo dependencies Optimizing dependency trees Managing peer dependencies Quick Start Minimal working example: Reference Guides Detailed implementations in the references/ directory: Guide Contents [Package Manager Basics](references/package manager basics.md) Package Manager Basics [Semantic Versioning (SemVer)](references/semantic versioning semver.md) Semantic Versioning (SemVer) [Dependency Lock Files](references/dependency lock files.md) Dependency Lock Files [Resolving Dependency Conflicts](references/resolving dependency conflicts.md) Resolving Dependency Conflicts [Security Vulnerability Management](references/security vulnerability management.md) Security Vulnerability Management [Monorepo Dependency Management](references/monorepo dependency management.md) Monorepo Dependency Management [Peer Dependencies](references/peer dependencies.md) Peer Dependencies [Performance Optimization](references/performance optimization.md) Performance Optimization [CI/CD Best Practices](references/cicd best practices.md) CI/CD Best Practices [Dependency Update Strategies](references/dependency update strategies.md) Dependency Update Strategies Best Practices ✅ DO Commit lock files to version control Use npm ci or equivalent in CI/CD pipelines Regular dependency audits (weekly/monthly) Keep dependencies up to date (automate with Dependabot) Use exact versions for critical dependencies Document why specific versions are pinned Test after updating dependencies Use semantic versioning correctly Minimize dependency count Review dependency licenses ❌ DON'T Manually edit lock files Mix package managers (npm + yarn in same project) Use npm install in CI/CD (use npm ci ) Ignore security vulnerabilities Use wildcards (\ ) for versions Install packages globally when local install is possible Commit node modules to git Use latest tag in production Blindly run npm audit fix Install unnecessary dependencies

dependency-management