diff --git a/crates/bevy_asset/src/io/embedded/mod.rs b/crates/bevy_asset/src/io/embedded/mod.rs
index f6c44397fc16f..d09d41062e367 100644
--- a/crates/bevy_asset/src/io/embedded/mod.rs
+++ b/crates/bevy_asset/src/io/embedded/mod.rs
@@ -1,3 +1,5 @@
+//! TODO
+
 #[cfg(feature = "embedded_watcher")]
 mod embedded_watcher;
 
@@ -139,6 +141,7 @@ impl EmbeddedAssetRegistry {
 ///
 /// [`load_embedded_asset!`]: crate::load_embedded_asset
 pub trait GetAssetServer {
+    /// TODO
     fn get_asset_server(&self) -> &AssetServer;
 }
 impl GetAssetServer for App {
diff --git a/crates/bevy_asset/src/io/file/mod.rs b/crates/bevy_asset/src/io/file/mod.rs
index 96c43072e8f47..8f9820950f6e5 100644
--- a/crates/bevy_asset/src/io/file/mod.rs
+++ b/crates/bevy_asset/src/io/file/mod.rs
@@ -1,3 +1,5 @@
+//! TODO
+
 #[cfg(feature = "file_watcher")]
 mod file_watcher;
 
diff --git a/crates/bevy_asset/src/io/gated.rs b/crates/bevy_asset/src/io/gated.rs
index fa4f0f0d3fd30..3cacd2aca7662 100644
--- a/crates/bevy_asset/src/io/gated.rs
+++ b/crates/bevy_asset/src/io/gated.rs
@@ -1,3 +1,5 @@
+//! TODO
+//!
 use crate::io::{AssetReader, AssetReaderError, PathStream, Reader};
 use alloc::{boxed::Box, sync::Arc};
 use bevy_platform::collections::HashMap;
diff --git a/crates/bevy_asset/src/io/memory.rs b/crates/bevy_asset/src/io/memory.rs
index 4c56057ff9e3c..1894de2f73928 100644
--- a/crates/bevy_asset/src/io/memory.rs
+++ b/crates/bevy_asset/src/io/memory.rs
@@ -1,3 +1,5 @@
+//! TODO
+
 use crate::io::{AssetReader, AssetReaderError, PathStream, Reader};
 use alloc::{borrow::ToOwned, boxed::Box, sync::Arc, vec::Vec};
 use bevy_platform::collections::HashMap;
@@ -31,14 +33,17 @@ impl Dir {
         })))
     }
 
+    /// TODO
     pub fn insert_asset_text(&self, path: &Path, asset: &str) {
         self.insert_asset(path, asset.as_bytes().to_vec());
     }
 
+    /// TODO
     pub fn insert_meta_text(&self, path: &Path, asset: &str) {
         self.insert_meta(path, asset.as_bytes().to_vec());
     }
 
+    /// TODO
     pub fn insert_asset(&self, path: &Path, value: impl Into<Value>) {
         let mut dir = self.clone();
         if let Some(parent) = path.parent() {
@@ -63,6 +68,7 @@ impl Dir {
         dir.0.write().assets.remove(&key)
     }
 
+    /// TODO
     pub fn insert_meta(&self, path: &Path, value: impl Into<Value>) {
         let mut dir = self.clone();
         if let Some(parent) = path.parent() {
@@ -77,6 +83,7 @@ impl Dir {
         );
     }
 
+    /// TODO
     pub fn get_or_insert_dir(&self, path: &Path) -> Dir {
         let mut dir = self.clone();
         let mut full_path = PathBuf::new();
@@ -94,6 +101,7 @@ impl Dir {
         dir
     }
 
+    /// TODO
     pub fn get_dir(&self, path: &Path) -> Option<Dir> {
         let mut dir = self.clone();
         for p in path.components() {
@@ -104,6 +112,7 @@ impl Dir {
         Some(dir)
     }
 
+    /// TODO
     pub fn get_asset(&self, path: &Path) -> Option<Data> {
         let mut dir = self.clone();
         if let Some(parent) = path.parent() {
@@ -114,6 +123,7 @@ impl Dir {
             .and_then(|f| dir.0.read().assets.get(f.to_str().unwrap()).cloned())
     }
 
+    /// TODO
     pub fn get_metadata(&self, path: &Path) -> Option<Data> {
         let mut dir = self.clone();
         if let Some(parent) = path.parent() {
@@ -124,11 +134,13 @@ impl Dir {
             .and_then(|f| dir.0.read().metadata.get(f.to_str().unwrap()).cloned())
     }
 
+    /// TODO
     pub fn path(&self) -> PathBuf {
         self.0.read().path.to_owned()
     }
 }
 
+/// TODO
 pub struct DirStream {
     dir: Dir,
     index: usize,
@@ -176,6 +188,7 @@ impl Stream for DirStream {
 /// This is primarily intended for unit tests.
 #[derive(Default, Clone)]
 pub struct MemoryAssetReader {
+    /// TODO
     pub root: Dir,
 }
 
@@ -189,7 +202,9 @@ pub struct Data {
 /// Stores either an allocated vec of bytes or a static array of bytes.
 #[derive(Clone, Debug)]
 pub enum Value {
+    /// TODO
     Vec(Arc<Vec<u8>>),
+    /// TODO
     Static(&'static [u8]),
 }
 
diff --git a/crates/bevy_asset/src/io/mod.rs b/crates/bevy_asset/src/io/mod.rs
index aa7256bbd927b..be778143541d1 100644
--- a/crates/bevy_asset/src/io/mod.rs
+++ b/crates/bevy_asset/src/io/mod.rs
@@ -1,3 +1,5 @@
+//! TODO
+
 #[cfg(all(feature = "file_watcher", target_arch = "wasm32"))]
 compile_error!(
     "The \"file_watcher\" feature for hot reloading does not work \
@@ -135,6 +137,7 @@ pub trait AsyncSeekForwardExt: AsyncSeekForward {
 
 impl<R: AsyncSeekForward + ?Sized> AsyncSeekForwardExt for R {}
 
+/// TODO
 #[derive(Debug)]
 #[must_use = "futures do nothing unless you `.await` or poll them"]
 pub struct SeekForwardFuture<'a, S: Unpin + ?Sized> {
@@ -188,6 +191,7 @@ impl Reader for Box<dyn Reader + '_> {
 pub trait AssetReaderFuture:
     ConditionalSendFuture<Output = Result<Self::Value, AssetReaderError>>
 {
+    /// TODO
     type Value;
 }
 
@@ -326,8 +330,10 @@ impl<T: AssetReader> ErasedAssetReader for T {
     }
 }
 
+/// TODO
 pub type Writer = dyn AsyncWrite + Unpin + Send + Sync;
 
+/// TODO
 pub type PathStream = dyn Stream<Item = PathBuf> + Unpin + Send;
 
 /// Errors that occur while loading assets.
@@ -583,7 +589,12 @@ pub enum AssetSourceEvent {
     /// An asset at this path was removed.
     RemovedAsset(PathBuf),
     /// An asset at this path was renamed.
-    RenamedAsset { old: PathBuf, new: PathBuf },
+    RenamedAsset {
+        /// TODO
+        old: PathBuf,
+        /// TODO
+        new: PathBuf
+    },
     /// Asset metadata at this path was added.
     AddedMeta(PathBuf),
     /// Asset metadata at this path was modified.
@@ -591,13 +602,23 @@ pub enum AssetSourceEvent {
     /// Asset metadata at this path was removed.
     RemovedMeta(PathBuf),
     /// Asset metadata at this path was renamed.
-    RenamedMeta { old: PathBuf, new: PathBuf },
+    RenamedMeta {
+        /// TODO
+        old: PathBuf,
+        /// TODO
+        new: PathBuf
+    },
     /// A folder at the given path was added.
     AddedFolder(PathBuf),
     /// A folder at the given path was removed.
     RemovedFolder(PathBuf),
     /// A folder at the given path was renamed.
-    RenamedFolder { old: PathBuf, new: PathBuf },
+    RenamedFolder {
+        /// TODO
+        old: PathBuf,
+        /// TODO
+        new: PathBuf
+    },
     /// Something of unknown type was removed. It is the job of the event handler to determine the type.
     /// This exists because notify-rs produces "untyped" rename events without destination paths for unwatched folders, so we can't determine the type of
     /// the rename.
diff --git a/crates/bevy_asset/src/io/processor_gated.rs b/crates/bevy_asset/src/io/processor_gated.rs
index da439f56f5e18..21abd7e1e71b8 100644
--- a/crates/bevy_asset/src/io/processor_gated.rs
+++ b/crates/bevy_asset/src/io/processor_gated.rs
@@ -1,3 +1,5 @@
+//! TODO
+
 use crate::{
     io::{AssetReader, AssetReaderError, AssetSourceId, PathStream, Reader},
     processor::{AssetProcessorData, ProcessStatus},
diff --git a/crates/bevy_asset/src/lib.rs b/crates/bevy_asset/src/lib.rs
index 4b29beae799b5..6c4565f269a1b 100644
--- a/crates/bevy_asset/src/lib.rs
+++ b/crates/bevy_asset/src/lib.rs
@@ -138,7 +138,6 @@
 //! If you want to save your assets back to disk, you should implement [`AssetSaver`](saver::AssetSaver) as well.
 //! This trait mirrors [`AssetLoader`] in structure, and works in tandem with [`AssetWriter`](io::AssetWriter), which mirrors [`AssetReader`](io::AssetReader).
 
-#![expect(missing_docs, reason = "Not all docs are written yet, see #3492.")]
 #![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![doc(
     html_logo_url = "https://bevy.org/assets/icon.png",
@@ -455,6 +454,7 @@ pub trait AsAssetId: Component {
 ///
 /// Note that this trait is automatically implemented when deriving [`Asset`].
 pub trait VisitAssetDependencies {
+    /// TODO
     fn visit_dependencies(&self, visit: &mut impl FnMut(UntypedAssetId));
 }
 
diff --git a/crates/bevy_asset/src/loader.rs b/crates/bevy_asset/src/loader.rs
index 24405f0657d5e..dab646f76f325 100644
--- a/crates/bevy_asset/src/loader.rs
+++ b/crates/bevy_asset/src/loader.rs
@@ -268,7 +268,9 @@ impl ErasedLoadedAsset {
 
 /// A type erased container for an [`Asset`] value that is capable of inserting the [`Asset`] into a [`World`]'s [`Assets`] collection.
 pub trait AssetContainer: Downcast + Any + Send + Sync + 'static {
+    /// TODO
     fn insert(self: Box<Self>, id: UntypedAssetId, world: &mut World);
+    /// TODO
     fn asset_type_name(&self) -> &'static str;
 }
 
@@ -291,11 +293,15 @@ impl<A: Asset> AssetContainer for A {
 /// [immediately]: crate::Immediate
 #[derive(Error, Debug)]
 pub enum LoadDirectError {
+    /// TODO
     #[error("Requested to load an asset path ({0:?}) with a subasset, but this is unsupported. See issue #18291")]
     RequestedSubasset(AssetPath<'static>),
+    /// TODO
     #[error("Failed to load dependency {dependency:?} {error}")]
     LoadError {
+        /// TODO
         dependency: AssetPath<'static>,
+        /// TODO
         error: AssetLoadError,
     },
 }
@@ -303,8 +309,10 @@ pub enum LoadDirectError {
 /// An error that occurs while deserializing [`AssetMeta`].
 #[derive(Error, Debug, Clone, PartialEq, Eq)]
 pub enum DeserializeMetaError {
+    /// TODO
     #[error("Failed to deserialize asset meta: {0:?}")]
     DeserializeSettings(#[from] SpannedError),
+    /// TODO
     #[error("Failed to deserialize minimal asset meta: {0:?}")]
     DeserializeMinimal(SpannedError),
 }
@@ -568,20 +576,27 @@ impl<'a> LoadContext<'a> {
 /// An error produced when calling [`LoadContext::read_asset_bytes`]
 #[derive(Error, Debug)]
 pub enum ReadAssetBytesError {
+    /// TODO
     #[error(transparent)]
     DeserializeMetaError(#[from] DeserializeMetaError),
+    /// TODO
     #[error(transparent)]
     AssetReaderError(#[from] AssetReaderError),
+    /// TODO
     #[error(transparent)]
     MissingAssetSourceError(#[from] MissingAssetSourceError),
+    /// TODO
     #[error(transparent)]
     MissingProcessedAssetReaderError(#[from] MissingProcessedAssetReaderError),
     /// Encountered an I/O error while loading an asset.
     #[error("Encountered an io error while loading asset at `{}`: {source}", path.display())]
     Io {
+        /// TODO
         path: PathBuf,
+        /// TODO
         source: std::io::Error,
     },
+    /// TODO
     #[error("The LoadContext for this read_asset_bytes call requires hash metadata, but it was not provided. This is likely an internal implementation error.")]
     MissingAssetHash,
 }
diff --git a/crates/bevy_asset/src/meta.rs b/crates/bevy_asset/src/meta.rs
index 0e972261198cc..ea03a6417b725 100644
--- a/crates/bevy_asset/src/meta.rs
+++ b/crates/bevy_asset/src/meta.rs
@@ -1,3 +1,5 @@
+//! TODO
+
 use alloc::{
     boxed::Box,
     string::{String, ToString},
@@ -13,7 +15,10 @@ use ron::ser::PrettyConfig;
 use serde::{Deserialize, Serialize};
 use tracing::error;
 
+/// TODO
 pub const META_FORMAT_VERSION: &str = "1.0";
+
+/// TODO
 pub type MetaTransform = Box<dyn Fn(&mut dyn AssetMetaDyn) + Send + Sync>;
 
 /// Asset metadata that informs how an [`Asset`] should be handled by the asset system.
@@ -36,6 +41,7 @@ pub struct AssetMeta<L: AssetLoader, P: Process> {
 }
 
 impl<L: AssetLoader, P: Process> AssetMeta<L, P> {
+    /// TODO
     pub fn new(asset: AssetAction<L::Settings, P::Settings>) -> Self {
         Self {
             meta_format_version: META_FORMAT_VERSION.to_string(),
@@ -56,7 +62,9 @@ pub enum AssetAction<LoaderSettings, ProcessSettings> {
     /// Load the asset with the given loader and settings
     /// See [`AssetLoader`].
     Load {
+        /// TODO
         loader: String,
+        /// TODO
         settings: LoaderSettings,
     },
     /// Process the asset with the given processor and settings.
@@ -64,7 +72,9 @@ pub enum AssetAction<LoaderSettings, ProcessSettings> {
     ///
     /// [`AssetProcessor`]: crate::processor::AssetProcessor
     Process {
+        /// TODO
         processor: String,
+        /// TODO
         settings: ProcessSettings,
     },
     /// Do nothing with the asset
@@ -89,7 +99,9 @@ pub struct ProcessedInfo {
 /// has changed.
 #[derive(Serialize, Deserialize, Debug, Clone)]
 pub struct ProcessDependencyInfo {
+    /// TODO
     pub full_hash: AssetHash,
+    /// TODO
     pub path: AssetPath<'static>,
 }
 
@@ -101,6 +113,7 @@ pub struct ProcessDependencyInfo {
 // using a type registry.
 #[derive(Serialize, Deserialize)]
 pub struct AssetMetaMinimal {
+    /// TODO
     pub asset: AssetActionMinimal,
 }
 
@@ -108,8 +121,17 @@ pub struct AssetMetaMinimal {
 /// isn't necessary.
 #[derive(Serialize, Deserialize)]
 pub enum AssetActionMinimal {
-    Load { loader: String },
-    Process { processor: String },
+    /// TODO
+    Load {
+        /// TODO
+        loader: String
+    },
+    /// TODO
+    Process {
+        /// TODO
+        processor: String
+    },
+    /// TODO
     Ignore,
 }
 
@@ -117,6 +139,7 @@ pub enum AssetActionMinimal {
 /// necessary.
 #[derive(Serialize, Deserialize)]
 pub struct ProcessedInfoMinimal {
+    /// TODO
     pub processed_info: Option<ProcessedInfo>,
 }
 
@@ -238,6 +261,7 @@ pub(crate) fn loader_settings_meta_transform<S: Settings>(
     Box::new(move |meta| meta_transform_settings(meta, &settings))
 }
 
+/// TODO
 pub type AssetHash = [u8; 32];
 
 /// NOTE: changing the hashing logic here is a _breaking change_ that requires a [`META_FORMAT_VERSION`] bump.
diff --git a/crates/bevy_asset/src/processor/mod.rs b/crates/bevy_asset/src/processor/mod.rs
index a239d66a9b59a..dcf510ee5fd16 100644
--- a/crates/bevy_asset/src/processor/mod.rs
+++ b/crates/bevy_asset/src/processor/mod.rs
@@ -163,6 +163,7 @@ impl AssetProcessor {
         self.data.sources.get(id.into())
     }
 
+    /// TODO
     #[inline]
     pub fn sources(&self) -> &AssetSources {
         &self.data.sources
@@ -1171,16 +1172,22 @@ impl<T: Process> Process for InstrumentedAssetProcessor<T> {
 /// The (successful) result of processing an asset
 #[derive(Debug, Clone)]
 pub enum ProcessResult {
+    /// TODO
     Processed(ProcessedInfo),
+    /// TODO
     SkippedNotChanged,
+    /// TODO
     Ignored,
 }
 
 /// The final status of processing an asset
 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 pub enum ProcessStatus {
+    /// TODO
     Processed,
+    /// TODO
     Failed,
+    /// TODO
     NonExistent,
 }
 
@@ -1467,10 +1474,13 @@ pub enum ProcessorState {
 /// An error that occurs when initializing the [`AssetProcessor`].
 #[derive(Error, Debug)]
 pub enum InitializeError {
+    /// TODO
     #[error(transparent)]
     FailedToReadSourcePaths(AssetReaderError),
+    /// TODO
     #[error(transparent)]
     FailedToReadDestinationPaths(AssetReaderError),
+    /// TODO
     #[error("Failed to validate asset log: {0}")]
     ValidateLogError(#[from] ValidateLogError),
 }
diff --git a/crates/bevy_asset/src/processor/process.rs b/crates/bevy_asset/src/processor/process.rs
index b37265d0fb660..525ded8a638ae 100644
--- a/crates/bevy_asset/src/processor/process.rs
+++ b/crates/bevy_asset/src/processor/process.rs
@@ -101,6 +101,7 @@ impl<
         S: AssetSaver<Asset = T::AssetOutput>,
     > LoadTransformAndSave<L, T, S>
 {
+    /// TODO
     pub fn new(transformer: T, saver: S) -> Self {
         LoadTransformAndSave {
             transformer,
@@ -113,49 +114,70 @@ impl<
 /// An error that is encountered during [`Process::process`].
 #[derive(Error, Debug)]
 pub enum ProcessError {
+    /// TODO
     #[error(transparent)]
     MissingAssetLoaderForExtension(#[from] MissingAssetLoaderForExtensionError),
+    /// TODO
     #[error(transparent)]
     MissingAssetLoaderForTypeName(#[from] MissingAssetLoaderForTypeNameError),
+    /// TODO
     #[error("The processor '{0}' does not exist")]
     #[from(ignore)]
     MissingProcessor(String),
+    /// TODO
     #[error("Encountered an AssetReader error for '{path}': {err}")]
     #[from(ignore)]
     AssetReaderError {
+        /// TODO
         path: AssetPath<'static>,
+        /// TODO
         err: AssetReaderError,
     },
+    /// TODO
     #[error("Encountered an AssetWriter error for '{path}': {err}")]
     #[from(ignore)]
     AssetWriterError {
+        /// TODO
         path: AssetPath<'static>,
+        /// TODO
         err: AssetWriterError,
     },
+    /// TODO
     #[error(transparent)]
     MissingAssetWriterError(#[from] MissingAssetWriterError),
+    /// TODO
     #[error(transparent)]
     MissingProcessedAssetReaderError(#[from] MissingProcessedAssetReaderError),
+    /// TODO
     #[error(transparent)]
     MissingProcessedAssetWriterError(#[from] MissingProcessedAssetWriterError),
+    /// TODO
     #[error("Failed to read asset metadata for {path}: {err}")]
     #[from(ignore)]
     ReadAssetMetaError {
+        /// TODO
         path: AssetPath<'static>,
+        /// TODO
         err: AssetReaderError,
     },
+    /// TODO
     #[error(transparent)]
     DeserializeMetaError(#[from] DeserializeMetaError),
+    /// TODO
     #[error(transparent)]
     AssetLoadError(#[from] AssetLoadError),
+    /// TODO
     #[error("The wrong meta type was passed into a processor. This is probably an internal implementation error.")]
     WrongMetaType,
+    /// TODO
     #[error("Encountered an error while saving the asset: {0}")]
     #[from(ignore)]
     AssetSaveError(Box<dyn core::error::Error + Send + Sync + 'static>),
+    /// TODO
     #[error("Encountered an error while transforming the asset: {0}")]
     #[from(ignore)]
     AssetTransformError(Box<dyn core::error::Error + Send + Sync + 'static>),
+    /// TODO
     #[error("Assets without extensions are not supported.")]
     ExtensionRequired,
 }
diff --git a/crates/bevy_asset/src/saver.rs b/crates/bevy_asset/src/saver.rs
index c8b96012eea72..e3a43a94f5494 100644
--- a/crates/bevy_asset/src/saver.rs
+++ b/crates/bevy_asset/src/saver.rs
@@ -1,3 +1,5 @@
+//! TODO
+
 use crate::{
     io::Writer, meta::Settings, transformer::TransformedAsset, Asset, AssetLoader,
     ErasedLoadedAsset, Handle, LabeledAsset, UntypedHandle,
diff --git a/crates/bevy_asset/src/server/mod.rs b/crates/bevy_asset/src/server/mod.rs
index e120888616692..68123417ff199 100644
--- a/crates/bevy_asset/src/server/mod.rs
+++ b/crates/bevy_asset/src/server/mod.rs
@@ -2031,20 +2031,28 @@ pub enum WaitForAssetError {
     DependencyFailed(Arc<AssetLoadError>),
 }
 
+/// TODO
 #[derive(Error, Debug)]
 pub enum WriteDefaultMetaError {
+    /// TODO
     #[error(transparent)]
     MissingAssetLoader(#[from] MissingAssetLoaderForExtensionError),
+    /// TODO
     #[error(transparent)]
     MissingAssetSource(#[from] MissingAssetSourceError),
+    /// TODO
     #[error(transparent)]
     MissingAssetWriter(#[from] MissingAssetWriterError),
+    /// TODO
     #[error("failed to write default asset meta file: {0}")]
     FailedToWriteMeta(#[from] AssetWriterError),
+    /// TODO
     #[error("asset meta file already exists, so avoiding overwrite")]
     MetaAlreadyExists,
+    /// TODO
     #[error("encountered an I/O error while reading the existing meta file: {0}")]
     IoErrorFromExistingMetaCheck(Arc<std::io::Error>),
+    /// TODO
     #[error("encountered HTTP status {0} when reading the existing meta file")]
     HttpErrorFromExistingMetaCheck(u16),
 }
diff --git a/crates/bevy_asset/src/transformer.rs b/crates/bevy_asset/src/transformer.rs
index 802e3aeaa7eff..78cd4aeaba5c0 100644
--- a/crates/bevy_asset/src/transformer.rs
+++ b/crates/bevy_asset/src/transformer.rs
@@ -1,3 +1,5 @@
+//! TODO
+
 use crate::{meta::Settings, Asset, ErasedLoadedAsset, Handle, LabeledAsset, UntypedHandle};
 use alloc::boxed::Box;
 use atomicow::CowArc;