Sane C++ Libraries
Cross-platform C++ libraries for coding agents.
✅ Agent-ready✅ Fast compile times✅ Easy to integrate✅ Bloat-free⛔️ No external dependencies⛔️ No hidden allocations⛔️ Not a framework
Built with Sane C++
A web server in one native executable
AsyncWebServer serves static files, accepts streamed uploads, upgrades WebSocket connections, and keeps a shared
canvas in sync. It is built from SC.cpp and the application's own code, with no external libraries,
runtime, or framework.
SC.cpp + application code No external libraries One native executable Philosophy
The Sane way
Sane C++ Libraries are built to be compact, efficient, inspectable, and careful about side effects. The design consistently encourages explicit resource ownership and error handling across the API surface. Coding agents can use the included skills to find the right constraints quickly and build useful software without guessing.
Libraries
Not a framework
The project is not a framework. The libraries try to stay as independent as possible, even at the cost of some internal duplication, while still working smoothly together. You can use one or two of them without pulling in the whole codebase.
Async Cross-platform completion-based asynchronous I/O
MVP Await C++20 coroutine layer over Async
MVP Fibers Stackful cooperative task runtime
Draft FibersAsync Stackful fiber I/O bridge over Async
Draft Process Launch child processes, redirect their standard streams, and build pipelines
Usable Plugin Compile source-delivered C++ extensions and reload them inside a running process
MVP