skills.rest
rainoftime
rainoftimeCOMMUNITY
Explore all skills by this author →
WebsiteGitHub

ffi-designer

Design Foreign Function Interfaces for C, Rust, Python, and Haskell.

17|2|Updated Feb 16, 2026
Search Tags:#interoperability#ffi#pldi#binding generation#runtime integration#language bridging
One-click install
npx skills add https://github.com/rainoftime/pl-skills --skill ffi-designer
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ffi-designer
Source: https://github.com/rainoftime/pl-skills/tree/main/ffi-designer
Command: npx skills add https://github.com/rainoftime/pl-skills --skill ffi-designer

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires llvm-backend-generator, type-checker-generator, and includes references (resource) and scripts (resource) components.

What problem does it solve?

This Skill addresses the challenge of integrating code written in different programming languages, enabling seamless interoperability and reuse of existing libraries.

Core Features & Use Cases

  • Type Mapping: Facilitates the conversion of data types between disparate language runtimes.
  • Calling Convention Handling: Manages differences in Application Binary Interfaces (ABIs) and parameter passing mechanisms.
  • Memory Management: Provides strategies for managing memory across language boundaries to prevent leaks and corruption.
  • Use Case: Integrate a high-performance C library into a Python application without rewriting the C code.

Quick Start

Design a Foreign Function Interface to call a C function int add(int a, int b) from Python.

Frequently Asked Questions about ffi-designer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I bridge a C library into Python without rewriting the code?▼

To bridge a C library into Python, you design a Foreign Function Interface for inter-language communication. This approach supports type mapping and calling convention management to integrate high-performance C code directly into Python applications without rewriting it.

What is the best way to handle memory management across language boundaries?▼

Memory management across language boundaries requires specific strategies to prevent leaks and corruption during cross-language calls. It involves managing memory allocation and deallocation safely between disparate language runtimes like C, Rust, Python, and Haskell.

How do calling conventions affect ABI compatibility for Rust and Haskell integration?▼

Calling conventions affect ABI compatibility by defining how parameters are passed between different language runtimes. Managing these differences is essential for successful Rust and Haskell integration and prevents runtime crashes during foreign function calls.

Does this FFI approach work with type mapping for callbacks across C and Rust?▼

Yes, this FFI approach works with type mapping by facilitating data type conversion between disparate runtimes. It specifically supports callback mechanisms across C, Rust, Python, and Haskell to enable full bidirectional inter-language communication.

How to reduce performance overhead in cross-language calls?▼

Reducing performance overhead in cross-language calls involves addressing ABI compatibility and optimizing type mapping strategies. Proper calling convention management minimizes the runtime integration costs associated with foreign function interfaces.

Related Skills

Explore More Software Engineering Skills→
gajjalaashok75-UIgajjalaashok75-UI
2

python-atlas

Guide Python application design, implementation, testing, and optimization with modern best practices.

Community
Advanced
oven-shoven-sh
95.3k

implementing-jsc-classes-cpp

Bind C++ classes to JavaScript using JavaScriptCore prototypes and constructors.

Official
Advanced
zhenzhizhi12zhenzhizhi12
2

cangjie-ffi

Call C functions from Cangjie and map C data types.

Community
Advanced
rubiojrrubiojr
24

rugo-go-modules

Integrate Go packages into Rugo scripts via the require keyword.

Community
Intermediate