Modernize (Brownfield Upgrade)

Optional Step after Gear 6 for Brownfield projects with modernize: true flag.

Estimated Time: 2-6 hours (depends on dependency age and breaking changes) Prerequisites: Gears 1-6 completed, 100% spec coverage established Output: Modern dependency versions, updated tests, synchronized specs

When to Use This Skill

Use this skill when:

• Brownfield path with modernize: true flag set
• Gears 1-6 are complete (specs established, gaps implemented)
• Ready to upgrade all dependencies to latest versions
• Want to modernize while maintaining spec-driven control