diff --git a/main.cpp b/main.cpp
index 8034d76..4ab014f 100644
--- a/main.cpp
+++ b/main.cpp
@@ -226,14 +226,14 @@ void main()
     }
 
     /**
-     * @brief Advance the application by one frame: update UI state, handle vertex edits and live shader recompilation,
-     * and render.
+     * @brief Advance the application by one frame: update UI, apply vertex edits and live shader recompilation, render,
+     * and submit GPU work.
      *
-     * Processes ImGui frames, applies interactive vertex edits (uploading vertex data when changed), recompiles and
-     * replaces the vertex shader and graphics pipeline on edits, acquires a GPU command buffer and swapchain texture,
-     * records a render pass that draws the triangle and ImGui draw lists, and submits the command buffer.
+     * Processes ImGui frames, uploads vertex data when edited, recompiles and replaces the vertex shader and graphics
+     * pipeline on shader edits, records a render pass that draws the triangle and ImGui draw lists, and submits the GPU
+     * command buffer for presentation.
      *
-     * @return SDL_AppResult SDL_APP_CONTINUE to continue the main loop.
+     * @return `SDL_APP_CONTINUE` to continue the main loop.
      */
     virtual SDL_AppResult iterate() override
     {
diff --git a/sdl_wrapper/sdl_wrapper.buffer.cpp b/sdl_wrapper/sdl_wrapper.buffer.cpp
index 907cfd2..3249bb7 100644
--- a/sdl_wrapper/sdl_wrapper.buffer.cpp
+++ b/sdl_wrapper/sdl_wrapper.buffer.cpp
@@ -34,12 +34,11 @@ namespace sopho
     }
 
     /**
-     * @brief Uploads a block of data into the wrapped GPU vertex buffer at the specified offset.
+     * @brief Uploads a block of data into the wrapped GPU vertex buffer at the specified byte offset.
      *
-     * If the internal transfer (staging) buffer is smaller than `p_size`, it will be reallocated
-     * to accommodate the upload. The function copies `p_size` bytes from `p_data` into the transfer
-     * buffer and enqueues a GPU copy pass that transfers those bytes into the vertex buffer at
-     * `p_offset`.
+     * If the internal staging transfer buffer is smaller than p_size it is reallocated to fit.
+     * Copies p_size bytes from p_data into the transfer buffer and enqueues a GPU copy pass to transfer them into the
+     * vertex buffer at p_offset.
      *
      * @param p_data Pointer to the source data to upload.
      * @param p_size Size in bytes of the data to upload.
diff --git a/sdl_wrapper/sdl_wrapper.pipeline.cpp b/sdl_wrapper/sdl_wrapper.pipeline.cpp
index 5f981f5..5136955 100644
--- a/sdl_wrapper/sdl_wrapper.pipeline.cpp
+++ b/sdl_wrapper/sdl_wrapper.pipeline.cpp
@@ -9,7 +9,20 @@ import :pipeline;
 
 namespace sopho
 {
+    /**
+     * @brief Initializes the PipelineWrapper with the given GPU device wrapper.
+     *
+     * @param p_device Shared pointer to a GpuWrapper representing the target GPU device; the wrapper retains this
+     * reference for its lifetime.
+     */
     PipelineWrapper::PipelineWrapper(std::shared_ptr<GpuWrapper> p_device) : m_device(p_device) {}
+    /**
+     * @brief Releases any GPU graphics pipeline owned by this wrapper.
+     *
+     * If a graphics pipeline is currently held, it is released using the associated
+     * device and the stored pipeline handle is cleared so the wrapper no longer
+     * references the pipeline.
+     */
     PipelineWrapper::~PipelineWrapper()
     {
         if (m_graphics_pipeline)
@@ -18,6 +31,14 @@ namespace sopho
             m_graphics_pipeline = nullptr;
         }
     }
+    /**
+     * @brief Rebuilds the GPU graphics pipeline when the wrapper is marked modified.
+     *
+     * If the wrapper's modified flag is set, this clears the flag, attempts to create a new
+     * graphics pipeline from the stored pipeline info and device, and on success replaces the
+     * current pipeline (releasing the previous pipeline first). If creation fails, an error
+     * is logged.
+     */
     auto PipelineWrapper::submit()
     {
         if (modified)