Enforce safe JNI patterns for Android Rust bindings.
npx skills add https://github.com/po4yka/RIPDPI --skill rust-android-jni
Please help me install this Agent Skill. Skill: rust-android-jni Source: https://github.com/po4yka/RIPDPI/tree/main/.claude/skills/rust-android-jni Command: npx skills add https://github.com/po4yka/RIPDPI --skill rust-android-jni
Android JNI integrations with Rust are error-prone due to thread lifecycles, local references, and marshaling choices. This skill consolidates canonical patterns to ensure safe, predictable interactions between Rust and Java/Kotlin on Android; it emphasizes panic containment, AttachCurrentThread/DetachCurrentThread discipline, local-ref frame management, JNIEnv lifetime across awaits, and efficient data marshaling for hot paths.
Follow the five canonical rules when creating or updating any JNI export to ensure safe, deterministic Java-Rust interactions.
High-intent search queries and answers about installing and using this skill.
To prevent Rust panics from unwinding across JNI boundaries in Android, wrap your JNI export logic in catch_unwind. This ensures panic containment so unwinding never crosses into Java or Kotlin, maintaining safe and predictable interactions.
Managing JNIEnv across async await boundaries in Rust requires prohibiting JNIEnv from crossing await points. You must use separate tasks with proper AttachCurrentThread discipline to ensure safe thread lifecycle management during concurrent operations.
A JniLocalReferenceTableOverflow error occurs in Android JNI integrations when local references are not properly managed. Applying frame-based local-reference handling ensures local reference safety and prevents table overflow during Rust and Java interactions.
For marshaling hot-path data in Rust JNI, prefer DirectByteBuffer over JByteArray copies. DirectByteBuffer provides performance-focused memory handling by avoiding data copying, making it optimal for efficient data marshaling in Android bindings.
Yes, you need AttachCurrentThread for non-JVM Rust threads making JNI calls on Android. Enforcing AttachCurrentThread and DetachCurrentThread discipline ensures proper thread lifecycle management and safe JNIEnv access for concurrent operations.
po4ykaCross-compile Rust crates into Android .so libraries via Gradle JNI.
Binh230199Configure Android NDK native builds for Gradle, CMake, and Soong modules.
siddhantparadoxReview and remediate Kotlin Coroutines usage in Android applications.
kreuzberg-devImplement Java 25 FFM API bindings for a Rust core with JUnit 5 tests.
