/build-android-binary

Turns the extension's Android source (android/.../<Pascal>Module.kt + <Pascal>Package.kt) into the DEX binary that the wrap runtime loads at runtime via DexClassLoader. This is the heavyweight, toolchain-dependent step of producing a .ppmplugin: source code in, a runnable <Pascal>Plugin.dex out.

Naming note: this skill runs Gradle's assembleRelease task internally. Don't confuse that with /assemble-ppmplugin, which zips the final bundle — different layers. This skill produces a binary; that one produces the bundle.

Cross-platform: runs on macOS, Linux, and Windows — the Android path has no Mac-only step (JDK 17, Gradle, and Android SDK d8 exist on all three). Every shell command below is given in both bash and PowerShell forms per shared-instructions §5.

Read shared/ppmplugin-format.md §5 — the Android binary requirements this skill enforces.

What this skill does NOT do

• Does not author manifest.json (run /generate-ppmplugin-manifest first — this skill reads it for cross-checks).
• Does not zip the .ppmplugin — that's /assemble-ppmplugin.
• Does not build iOS — that's /build-ios-binary (Mac-only).
• Does not modify the canonical android/ — all standalone adjustments are made to a throwaway copy under ppmplugin/staging/android-build/ (Step 2). The source the engineer maintains is never touched.

Step 1 — Read shared docs + prereq block