doc: Updates AGENTS.md

AGENTS.md

@@ -1,28 +1,24 @@
 # wlgol
 
-Simple implementation of Conway's Game of Life for Wayland.
+Simple Wayland Game of Life in C11. Draws directly into a shared-memory buffer (no OpenGL/Vulkan).
 
-It directly uses C interfaces of Wayland.
+- Build definition: `CMakeLists.txt`
+- Generated code: `xdg-shell.xml` is vendored; `wayland-scanner` produces `xdg-shell.h` and `xdg-shell.c` inside `build/`
+- Source layout: `wlgol.c` is the entry point; `tkeyboard.c`, `tpointer.c`, `hashtable.c` are modules; headers live in `include/`; tests live in `tests/`
 
-Uses pure C language in C11 standard.
+## Dependencies
 
-Draws directly into the buffer in a shared memory pool. Doesn't use interfaces like OpenGL, Vulkan etc.
+Needs `cmake`, `ninja`, `pkg-config`, `wayland-scanner`, plus the runtime libraries `wayland-client`, `wayland-cursor`, and `xkbcommon`.
 
-Build definition is in `CMakeFiles.txt`.
+## Common commands
 
-Uses `cmake` an `ninja` to build the program.
-
-## Useful commands:
-
-Init build environment:
+Configure (from repo root):
 
 ```bash
-mkdir build
-cd build
-cmake -G Ninja ..
+cmake -G Ninja -B build
 ```
 
-Build programs:
+Build:
 
 ```bash
 cmake --build ./build
@@ -34,9 +30,20 @@ Run tests:
 ctest --test-dir build
 ```
 
-Run program:
+Run a single test directly:
+
+```bash
+./build/test_hashtable
+```
+
+Run the program (requires a running Wayland compositor):
 
 ```bash
 ./build/wlgol
 ```
 
+## Notes
+
+- `compile_commands.json` is generated automatically in the build directory because `CMAKE_EXPORT_COMPILE_COMMANDS` is set in `CMakeLists.txt`.
+- The project currently has one CTest target named `Hashtable`.
+