version: "1.0.2" name: aosp-appendices description: | AOSP Internals — Appendices. Use when looking up a key file path (per-chapter table of the most important AOSP source files: build, init, kernel, HAL, framework services, system apps, infrastructure) or the meaning of an AOSP-specific acronym/term (Treble, VINTF, GKI, APEX, AIDL, HIDL, etc.), why Kotlin is absent from the public API, or what changed from Android 16 to Android 17. Reference material — load when you need a concrete path, a definition, or a changelog rather than narrative explanation. metadata: author: 'utzcoz' version: '2026.06.24' last-updated: '2026-09-12'

AOSP Internals — Appendices

Reference material: a per-chapter index of key source files, a glossary of AOSP-specific terms, a note on the Kotlin/public-API asymmetry, and the Android 16→17 changelog.

Files in this skill

• A-appendix-key-files.md — per-chapter table of the most important AOSP source files (sorted ascending by chapter number)
• B-appendix-glossary.md — definitions of AOSP-specific acronyms and terms
• C-appendix-kotlin-public-api.md — why Kotlin is heavily used in AOSP services yet absent from the android.* public API
• D-appendix-android-17-updates.md — important platform changes from Android 16 to Android 17, by subsystem, grounded in the 16→17 changeset and verified against AOSP 17 source

When to load which file

• Need a specific source file path for a subsystem → A-appendix-key-files.md
• Need a definition of an AOSP acronym (Treble, VINTF, GKI, APEX, AIDL, HIDL, etc.) → B-appendix-glossary.md
• Question about Kotlin's role in AOSP vs. the public API → C-appendix-kotlin-public-api.md
• What changed from Android 16 to Android 17 → D-appendix-android-17-updates.md