The body is lean — short Overview, tight Prerequisites, and seven terse numbered Steps — and largely assumes Claude's competence rather than explaining basics, matching the score-3 'lean and efficient; every token earns its place' anchor; it is not the score-2 anchor because there is no notable padding or unnecessary explanation.

Steps name concrete tools and patterns ('androguard', 'DexClassLoader', 'Runtime.exec') giving some concrete guidance, but provide no executable code or commands and never reference the bundled agent.py that implements them, fitting the score-2 'some concrete guidance but incomplete; missing key details' anchor rather than the score-3 'fully executable; copy-paste ready' anchor.

The seven steps are clearly sequenced, but there are no validation or verification checkpoints between parse/scan/report, and the final report step has no check for completeness, matching the score-2 'steps listed but validation gaps; checkpoints missing or implicit' anchor; it is above the score-1 anchor because the sequence is explicit.

The body is well-organized into sections and the bundle is shallow (one references/ file and one scripts/ file, one level deep), but the body never links to or signals api-reference.md or agent.py, so navigation to the detail materials is missing — this fits the score-2 'references present but not clearly signaled' anchor rather than the score-3 'well-signaled one-level-deep references' anchor.

Quotes name multiple concrete actions: 'resource decompilation', 'Java source recovery', 'manifest inspection', 'dangerous permission-combination detection', and 'identification of obfuscated code, dynamic code loading, and reflection-based API calls' — a comprehensive concrete list, matching the score-3 anchor and well above the score-2 'some actions' anchor.

It explicitly answers both 'what' (the analysis actions) and 'when' via the explicit trigger clause 'Use to statically triage a suspicious APK without executing it or to build mobile malware detection rules', matching the score-3 anchor; it is not the score-2 anchor because the 'when' is explicit, not implied.

It includes natural terms like 'Android APK malware', 'suspicious APK', and 'mobile malware detection rules', but leans technical ('reflection-based API calls', 'dynamic code loading') and omits common user phrasings such as 'decompile APK', 'is this APK safe/malicious', or 'Android virus', so it sits at the score-2 'some relevant keywords but missing common variations' anchor rather than full coverage.

The niche is narrow and clearly bounded — static analysis of Android APK malware with named tools (apktool/jadx/androguard) — making it unlikely to trigger for unrelated skills, matching the score-3 'clear niche with distinct triggers' anchor.