Use when generating cross-language FFI bindings for Rust.
Scanned 9/10/2026
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---
name: rust-core-ffi
title: Rust Core FFI
description: Use when generating cross-language FFI bindings for Rust.
category: networking
tags: [ffi, rust, bindings, uniffi, cross-language, cbindgen]
---
# Rust Core FFI
**Trigger**: Use when generating cross-language FFI bindings for the Rust core engine.
**Libraries**: `uniffi` (Mozilla's cross-language bindings), `cbindgen` (C headers), `jni` (Java/Kotlin)
**Implementation**: UniFFI for Python/Swift/Kotlin bindings from Rust. Define UDL (UniFFI Definition Language) file for exported interface. Generate Python `.so`/`.dylib`, Swift `.a`, Kotlin `.so`. `cbindgen` for C-compatible headers. Thread-safe exports via `Arc<RwLock<>>` pattern. Async Rust exports via UniFFI proc-macro. Memory management: Rust owns, borrows to caller.
**Connected**: `python-orchestrator`, `ios-vpn-adblocker`, `android-vpn-adblocker`, `svelte-web-dashboard`, `clojure-rule-engine`, `service-orchestrator`
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Ultra-compressed communication mode. Cuts token usage ~75% by speaking like caveman while keeping full technical accuracy. Supports intensity levels: lite, full (default), ultra, wenyan-lite, wenyan-full, wenyan-ultra. Use when user says "caveman mode", "talk like caveman", "use caveman", "less tokens", "be brief", or invokes /caveman. Also auto-triggers when token efficiency is requested.
