diff --git a/server/src/http/assets.rs b/server/src/http/assets.rs
index 0a837a0..6868146 100644
--- a/server/src/http/assets.rs
+++ b/server/src/http/assets.rs
@@ -47,17 +47,20 @@ fn serve_embedded(path: &str) -> Response {
     }
 }
 
+/// Serve a single embedded asset from the `assets/` folder.
 #[handler]
 pub fn embedded_asset(Path(path): Path<String>) -> Response {
     let asset_path = format!("assets/{path}");
     serve_embedded(&asset_path)
 }
 
+/// Serve an embedded file by path (falls back to `index.html` for SPA routing).
 #[handler]
 pub fn embedded_file(Path(path): Path<String>) -> Response {
     serve_embedded(&path)
 }
 
+/// Serve the embedded SPA entrypoint.
 #[handler]
 pub fn embedded_index() -> Response {
     serve_embedded("index.html")
diff --git a/server/src/http/health.rs b/server/src/http/health.rs
index 7eb3bd5..e5b241d 100644
--- a/server/src/http/health.rs
+++ b/server/src/http/health.rs
@@ -1,5 +1,8 @@
 use poem::handler;
 
+/// Health check endpoint.
+///
+/// Returns a static "ok" response to indicate the server is running.
 #[handler]
 pub fn health() -> &'static str {
     "ok"
diff --git a/server/src/http/ws.rs b/server/src/http/ws.rs
index 87fb560..4875c3c 100644
--- a/server/src/http/ws.rs
+++ b/server/src/http/ws.rs
@@ -10,6 +10,10 @@ use tokio::sync::mpsc;
 
 #[derive(Deserialize)]
 #[serde(tag = "type", rename_all = "snake_case")]
+/// WebSocket request messages sent by the client.
+///
+/// - `chat` starts a streaming chat session.
+/// - `cancel` stops the active session.
 enum WsRequest {
     Chat {
         messages: Vec<Message>,
@@ -20,6 +24,11 @@ enum WsRequest {
 
 #[derive(Serialize)]
 #[serde(tag = "type", rename_all = "snake_case")]
+/// WebSocket response messages sent by the server.
+///
+/// - `token` streams partial model output.
+/// - `update` pushes the updated message history.
+/// - `error` reports a request or processing failure.
 enum WsResponse {
     Token { content: String },
     Update { messages: Vec<Message> },
@@ -27,6 +36,9 @@ enum WsResponse {
 }
 
 #[handler]
+/// WebSocket endpoint for streaming chat responses and cancellation.
+///
+/// Accepts JSON `WsRequest` messages and streams `WsResponse` messages.
 pub async fn ws_handler(ws: WebSocket, ctx: Data<&AppContext>) -> impl poem::IntoResponse {
     let ctx = ctx.0.clone();
     ws.on_upgrade(move |socket| async move {