java-foreign
java-foreign is a JVM & .NET skill for AI agents, published by claude-dev-suite in the claude-dev-suite repository on GitHub. Skillspace rates java-foreign F (51/100) and it passed the safety scan; the rating is based on static analysis only.
Java Foreign Function & Memory API (JEP 442/454, finalized in JDK 22+) plus jextract tool. Replaces JNI for calling C libraries from JVM/Kotlin without writing native glue. Critical for desktop apps needing OS interop (keyring, system APIs) on Linux/macOS/Windows. Covers Linker, MethodHandle, MemorySegment, Arena, struct layout, jextract code generation, and integration with KMP desktop targets. USE WHEN: user mentions "Foreign Memory API", "FFM API", "jextract", "MemorySegment", "Linker", "java.lang.foreign", "JEP 442", "JEP 454", "JDK 22 FFI", "Java FFI no JNI", "panama", "OS keyring Java" DO NOT USE FOR: Rust ↔ Kotlin/Swift bindings - use `languages/uniffi` DO NOT USE FOR: Mobile Android JNI - use `mobile/android-native` DO NOT USE FOR: Generic Java patterns - use Java-specific skill
- Grade
- F
- Quality
- 51 / 100
- Safety
- Passed
- GitHub stars
- 24
Unproven: rated by static analysis only, not yet compared head-to-head.
This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.
Our review
- Architecture
- 77 / 100
- Maturity
- Basic: a single SKILL.md
- Security scan
- Low-risk patterns
- License
- MIT
- Adoption
- Adopted by 0 other repositories, in 2 collections
What the scanner flagged
- mentions secrets in text
Not checked yet
- Not judged on the rubric yet (not a contender in its category)
- No blind task eval yet
- Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
- Sibling files (scripts, references) not fetched; security scan covers SKILL.md only
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