Skill Dependency Management

Skill: Dependency Management

Stay current. Stay secure. Minimize version mismatch.

Version Updates

Semantic Versioning:

• 1.0.0 → 2.0.0: Breaking change (test, update code)
• 1.0.0 → 1.1.0: New feature (backward-compatible, usually safe)
• 1.0.0 → 1.0.1: Bug fix (safe to update)

Security Patch Strategy

# 1. Check for vulnerabilities
npm audit  # or pip check, cargo audit

# 2. Update vulnerable packages
npm update lodash@4.17.21

# 3. Test changes
npm test

# 4. Commit & push
git commit -m "fix(deps): update lodash to patch CVE-2021-23337"

Transitive Dependency Hell

app → requests@2.28.0
app → urllib3@1.26.0
app → certifi@2022.9.24

requests → urllib3@1.25.0  # Different version!

Solution: Lock files (requirements.txt, package-lock.json, Cargo.lock)

Monorepo Dependencies

Shared dependencies (lock once):

root/
  Cargo.lock  # All crates use this
  crates/
    auth/
    api/
    db/

Deprecation Tracking

# Checklist when you deprecate something
- [ ] Announce (email, docs, header warning)
- [ ] Timeline (6 months warning)
- [ ] Alternatives (what should users use?)
- [ ] Test (ensure new way works)
- [ ] Remove (after timeline)

Status: Ready for dependency work
Best for: Version updates, security patches, CVE management