diff --git a/src-tauri/src/codex.rs b/src-tauri/src/codex.rs
index 347bd6063..c27fbc466 100644
--- a/src-tauri/src/codex.rs
+++ b/src-tauri/src/codex.rs
@@ -255,6 +255,12 @@ pub(crate) async fn send_user_message(
     app: AppHandle,
 ) -> Result<Value, String> {
     if remote_backend::is_remote_mode(&*state).await {
+        let images = images.map(|paths| {
+            paths
+                .into_iter()
+                .map(remote_backend::normalize_path_for_remote)
+                .collect::<Vec<_>>()
+        });
         return remote_backend::call_remote(
             &*state,
             app,
diff --git a/src-tauri/src/remote_backend.rs b/src-tauri/src/remote_backend.rs
index a46f6b839..a844f0fff 100644
--- a/src-tauri/src/remote_backend.rs
+++ b/src-tauri/src/remote_backend.rs
@@ -16,6 +16,40 @@ const DISCONNECTED_MESSAGE: &str = "remote backend disconnected";
 
 type PendingMap = HashMap<u64, oneshot::Sender<Result<Value, String>>>;
 
+pub(crate) fn normalize_path_for_remote(path: String) -> String {
+    let trimmed = path.trim();
+    if trimmed.is_empty() {
+        return path;
+    }
+
+    if let Some(normalized) = normalize_wsl_unc_path(trimmed) {
+        return normalized;
+    }
+
+    path
+}
+
+fn normalize_wsl_unc_path(path: &str) -> Option<String> {
+    let lower = path.to_ascii_lowercase();
+    let (prefix_len, raw) = if lower.starts_with("\\\\wsl$\\") {
+        (7, path)
+    } else if lower.starts_with("\\\\wsl.localhost\\") {
+        (16, path)
+    } else {
+        return None;
+    };
+
+    let remainder = raw.get(prefix_len..)?;
+    let mut segments = remainder.split('\\').filter(|segment| !segment.is_empty());
+    segments.next()?;
+    let joined = segments.collect::<Vec<_>>().join("/");
+    Some(if joined.is_empty() {
+        "/".to_string()
+    } else {
+        format!("/{joined}")
+    })
+}
+
 #[derive(Clone)]
 pub(crate) struct RemoteBackend {
     inner: Arc<RemoteBackendInner>,
diff --git a/src-tauri/src/workspaces.rs b/src-tauri/src/workspaces.rs
index 10e365853..3c1faa2ae 100644
--- a/src-tauri/src/workspaces.rs
+++ b/src-tauri/src/workspaces.rs
@@ -516,6 +516,8 @@ pub(crate) async fn add_workspace(
     app: AppHandle,
 ) -> Result<WorkspaceInfo, String> {
     if remote_backend::is_remote_mode(&*state).await {
+        let path = remote_backend::normalize_path_for_remote(path);
+        let codex_bin = codex_bin.map(remote_backend::normalize_path_for_remote);
         let response = remote_backend::call_remote(
             &*state,
             app,
@@ -719,6 +721,17 @@ pub(crate) async fn add_worktree(
     state: State<'_, AppState>,
     app: AppHandle,
 ) -> Result<WorkspaceInfo, String> {
+    if remote_backend::is_remote_mode(&*state).await {
+        let response = remote_backend::call_remote(
+            &*state,
+            app,
+            "add_worktree",
+            json!({ "parentId": parent_id, "branch": branch }),
+        )
+        .await?;
+        return serde_json::from_value(response).map_err(|err| err.to_string());
+    }
+
     let branch = branch.trim();
     if branch.is_empty() {
         return Err("Branch name is required.".to_string());
@@ -812,7 +825,13 @@ pub(crate) async fn add_worktree(
 pub(crate) async fn remove_workspace(
     id: String,
     state: State<'_, AppState>,
+    app: AppHandle,
 ) -> Result<(), String> {
+    if remote_backend::is_remote_mode(&*state).await {
+        remote_backend::call_remote(&*state, app, "remove_workspace", json!({ "id": id })).await?;
+        return Ok(());
+    }
+
     let (entry, child_worktrees) = {
         let workspaces = state.workspaces.lock().await;
         let entry = workspaces
@@ -880,7 +899,13 @@ pub(crate) async fn remove_workspace(
 pub(crate) async fn remove_worktree(
     id: String,
     state: State<'_, AppState>,
+    app: AppHandle,
 ) -> Result<(), String> {
+    if remote_backend::is_remote_mode(&*state).await {
+        remote_backend::call_remote(&*state, app, "remove_worktree", json!({ "id": id })).await?;
+        return Ok(());
+    }
+
     let (entry, parent) = {
         let workspaces = state.workspaces.lock().await;
         let entry = workspaces
@@ -1333,7 +1358,19 @@ pub(crate) async fn update_workspace_settings(
     id: String,
     settings: WorkspaceSettings,
     state: State<'_, AppState>,
+    app: AppHandle,
 ) -> Result<WorkspaceInfo, String> {
+    if remote_backend::is_remote_mode(&*state).await {
+        let response = remote_backend::call_remote(
+            &*state,
+            app,
+            "update_workspace_settings",
+            json!({ "id": id, "settings": settings }),
+        )
+        .await?;
+        return serde_json::from_value(response).map_err(|err| err.to_string());
+    }
+
     let (entry_snapshot, list) = {
         let mut workspaces = state.workspaces.lock().await;
         let entry_snapshot = apply_workspace_settings_update(&mut workspaces, &id, settings)?;
@@ -1361,7 +1398,20 @@ pub(crate) async fn update_workspace_codex_bin(
     id: String,
     codex_bin: Option<String>,
     state: State<'_, AppState>,
+    app: AppHandle,
 ) -> Result<WorkspaceInfo, String> {
+    if remote_backend::is_remote_mode(&*state).await {
+        let codex_bin = codex_bin.map(remote_backend::normalize_path_for_remote);
+        let response = remote_backend::call_remote(
+            &*state,
+            app,
+            "update_workspace_codex_bin",
+            json!({ "id": id, "codex_bin": codex_bin }),
+        )
+        .await?;
+        return serde_json::from_value(response).map_err(|err| err.to_string());
+    }
+
     let (entry_snapshot, list) = {
         let mut workspaces = state.workspaces.lock().await;
         let entry_snapshot = match workspaces.get_mut(&id) {