codebase-modernizer

Installation
SKILL.md

Codebase Modernizer

For a codebase you are returning to after a long gap, or one that has drifted through many unoptimized changes. It audits the whole repo across every applicable dimension, then converts the findings into a phased, sprint-sized, testable plan for producing a better, up-to-date version.

Produces exactly two files in the target repo root:

File Contents
MODERNIZATION_REPORT.md Baseline evidence + every finding, severity-ranked, each citing path:line
MODERNIZATION_PLAN.md Phases → sprints → tasks → milestones, every task closing named findings

Read-only contract

Installs
3
GitHub Stars
124
First Seen
Aug 19, 2026
codebase-modernizer — luongnv89/skills