Codebase Navigator & Analyst

This skill provides tools and methods to quickly understand the health, structure, and statistics of the Android codebase.

Dependency Inspection

To understand what libraries are used:

./gradlew app:dependencies

Tip: Look for strictly versioned libraries vs dynamic versions (bad practice).

Architecture Detective

• AndroidManifest.xml: The entry point. Look here to find the Launcher Activity, defined Services, and Receivers.
• Package Structure:
  • ui/: Often contains Activities, Fragments, ViewModels.
  • data/ or repo/: Repository pattern implementation.
  • network/ or api/: Retrofit/OkHttp definitions.

Code Statistics (PowerShell)

To count lines of code (LOC) for Java files recursively:

Get-ChildItem -Recurse -Filter *.java | Get-Content | Measure-Object -Line

To find the largest files (potential monoliths):

Get-ChildItem -Recurse -Filter *.java | Sort-Object Length -Descending | Select-Object Name, Length -First 10

Health Checks

• Giant Classes: If a file > 1000 lines, it likely needs refactoring.
• Deep Nesting: If indentation levels > 5, consider simplifying logic.