apktool

Quick Review

Excellent comprehensive skill for Android APK reverse engineering. The description clearly indicates when to use apktool (APK decoding, resource extraction, manifest examination). Task knowledge is outstanding with detailed commands, practical workflows, troubleshooting, and security analysis patterns. Structure is very good with logical sections, though the single-file format is somewhat long (could benefit from separate workflow files for complex scenarios). Novelty is moderate - while apktool itself is powerful, basic unpacking (apktool d) is straightforward for a CLI agent; the value comes from the systematic analysis workflows, security-focused search patterns, and integration guidance that would otherwise require many agent iterations to discover.