diff --git a/gpu/src/Adapter.zig b/gpu/src/Adapter.zig
index 6288675f..f58cfc8a 100644
--- a/gpu/src/Adapter.zig
+++ b/gpu/src/Adapter.zig
@@ -95,6 +95,7 @@ pub const Type = enum(u32) {
     unknown,
 };
 
+// TODO: docs
 pub fn typeName(t: Type) []const u8 {
     return switch (t) {
         .discrete_gpu => "Discrete GPU",
@@ -116,6 +117,7 @@ pub const BackendType = enum(u32) {
     opengles,
 };
 
+// TODO: docs
 pub fn backendTypeName(t: BackendType) []const u8 {
     return switch (t) {
         .nul => "Null",
diff --git a/gpu/src/Device.zig b/gpu/src/Device.zig
index 397b9050..c9e306dc 100644
--- a/gpu/src/Device.zig
+++ b/gpu/src/Device.zig
@@ -52,6 +52,7 @@ pub const VTable = struct {
     release: fn (ptr: *anyopaque) void,
 };
 
+// TODO: docs
 pub const Descriptor = struct {
     label: ?[]const u8 = null,
     required_features: ?[]FeatureName = null,
diff --git a/gpu/src/Surface.zig b/gpu/src/Surface.zig
index 3d524780..e470c125 100644
--- a/gpu/src/Surface.zig
+++ b/gpu/src/Surface.zig
@@ -29,6 +29,7 @@ pub const DescriptorTag = enum {
     canvas_html_selector,
 };
 
+// TODO: docs
 pub const Descriptor = union(DescriptorTag) {
     metal_layer: struct {
         label: ?[]const u8,
diff --git a/gpu/src/main.zig b/gpu/src/main.zig
index e26915c0..9346c4b4 100644
--- a/gpu/src/main.zig
+++ b/gpu/src/main.zig
@@ -14,7 +14,10 @@
 //!
 //! Note: WebGPU’s coordinate systems match DirectX’s coordinate systems in a graphics pipeline.
 //!
-//! 
+//! # Reference counting
+//!
+//! TODO: docs
+//!
 const std = @import("std");
 pub const Interface = @import("Interface.zig");
 pub const RequestAdapterOptions = Interface.RequestAdapterOptions;