Update AGENTS.md

AGENTS.md

@@ -102,6 +102,7 @@ SnapRAID is designed to recover from an interruption, including `SIGKILL`, at an
 - **Preferences**: Use 0 instead of NULL and '\0'
 - **Preferences**: Use prefix ++variable and --variable instead of postfix variable++ and variable-- where both are equivalent
 - **Safety Checks**: Avoid adding safety checks for conditions that never happen
+- **Type Casts**: Avoid type casts unless strictly necessary for compilation with -Werror and unavoidable by other mean
 - **Simplicity First**: Always choose the simplest design with the minimal number of state variables, branches, and lines of code.
 - **Stack Over Heap**: Prefer stack-allocated fixed-size buffers over dynamic memory allocation (`malloc`/`free`) whenever the upper bound is small, fixed, and known at compile time.
 - **Commit Messages**: Every time a change is done, a single line commit description should be provided for that change