Does it help with memory safety in unsafe blocks?

Yes, it provides specific safety documentation patterns and memory management rules (like ownership transfer and buffer patterns) to prevent leaks and undefined behavior.

Is it suitable for multi-DLL projects?

Absolutely. It includes specific considerations for allocator consistency, ensuring each DLL frees the memory it allocated, and avoiding unstable Rust types across boundaries.

What standards does this Rust FFI skill follow?

The skill follows Microsoft's Pragmatic Rust guidelines, which focus on practical, safe, and maintainable Foreign Function Interface and cross-language interoperability.

Can it help generate C header files?

It includes configurations and best practices for using cbindgen to automatically generate C/C++ headers from your Rust structs and functions.

How do I test my FFI code with this skill?

The skill suggests round-trip testing patterns and recommends using Miri (cargo +nightly miri test) to detect potential undefined behavior in FFI code.

Pragmatic Rust FFI

Name: Pragmatic Rust FFI
Author: vanyastaff

byvanyastaff

开发者工具

Implements Microsoft's pragmatic guidelines for safe and efficient Foreign Function Interface (FFI) development between Rust and C/C++.

关于

This skill equips Claude with specialized knowledge of Microsoft's Pragmatic Rust FFI guidelines, enabling it to write robust, C-compatible Rust code. It provides standardized patterns for cross-language memory management, opaque handle creation, and ABI-safe data structures using repr(C). It is particularly useful for developers building dynamic libraries (cdylib), multi-DLL systems, or wrapping existing C/C++ libraries, ensuring that unsafe code blocks are properly documented and follow industry-standard memory safety protocols.

主要功能

Implements safe wrappers for calling external C functions with proper safety documentation
Generates FFI-safe error handling patterns and thread-local error status mechanisms
Manages cross-language memory ownership and allocation consistency across DLL boundaries
Assists with cbindgen configuration for automated C/C++ header generation
Provides C-compatible ABI patterns using repr(C) and explicit discriminants
0 GitHub stars

使用场景

Developing safe Rust wrappers for legacy C libraries using Miri for validation
Building multi-DLL systems where Rust modules must communicate across binary boundaries
Creating high-performance Rust plugins for existing C++ applications

关于

主要功能

Implements safe wrappers for calling external C functions with proper safety documentation
Generates FFI-safe error handling patterns and thread-local error status mechanisms
Manages cross-language memory ownership and allocation consistency across DLL boundaries
Assists with cbindgen configuration for automated C/C++ header generation
Provides C-compatible ABI patterns using repr(C) and explicit discriminants
0 GitHub stars

使用场景

Developing safe Rust wrappers for legacy C libraries using Miri for validation
Building multi-DLL systems where Rust modules must communicate across binary boundaries
Creating high-performance Rust plugins for existing C++ applications