Guide agents through Zig compiler invocation: optimization modes, output types, zig cc as a C compiler drop-in, error message interpretation, and the Zig compilation pipeline.
| Mode | Flag | -O equiv | Purpose |
| Debug (default) | -O Debug | -O0 -g | Fast compile, all safety checks, debug info | | ReleaseSafe | -O ReleaseSafe | -O2 + checks | Optimized with safety checks retained | | ReleaseFast | -O ReleaseFast | -O3 | Maximum speed, safety checks removed | | ReleaseSmall | -O ReleaseSmall | -Os | Minimize binary size |
Zig compiler skill for systems programming. Use when compiling Zig programs, selecting optimization modes, using zig cc as a C compiler, reading Zig error messages, or understanding Zig's compilation model. Activates on queries about zig build-exe, zig build-lib, optimize modes, ReleaseSafe, ReleaseFast, ReleaseSmall, zig cc, zig ast-check, or Zig compilation errors. Source: mohitmishra786/low-level-dev-skills.