diff --git a/pgml-dashboard/src/api/deployment/deployment_models.rs b/pgml-dashboard/src/api/deployment/deployment_models.rs
index 8f88a3f91..3fe66c8a7 100644
--- a/pgml-dashboard/src/api/deployment/deployment_models.rs
+++ b/pgml-dashboard/src/api/deployment/deployment_models.rs
@@ -18,7 +18,7 @@ use std::collections::HashMap;
 
 // Returns models page
 #[get("/models")]
-pub async fn deployment_models(cluster: &Cluster) -> Result<ResponseOk, Error> {
+pub async fn deployment_models(cluster: &Cluster, _connected: ConnectedCluster<'_>) -> Result<ResponseOk, Error> {
     let mut layout = crate::templates::WebAppBase::new("Dashboard", &cluster);
     layout.breadcrumbs(vec![NavLink::new("Models", &urls::deployment_models()).active()]);
 
@@ -34,7 +34,7 @@ pub async fn deployment_models(cluster: &Cluster) -> Result<ResponseOk, Error> {
 
 // Returns models page
 #[get("/models/<model_id>")]
-pub async fn model(cluster: &Cluster, model_id: i64) -> Result<ResponseOk, Error> {
+pub async fn model(cluster: &Cluster, model_id: i64, _connected: ConnectedCluster<'_>) -> Result<ResponseOk, Error> {
     let model = models::Model::get_by_id(cluster.pool(), model_id).await?;
     let project = models::Project::get_by_id(cluster.pool(), model.project_id).await?;
 
diff --git a/pgml-dashboard/src/api/deployment/notebooks.rs b/pgml-dashboard/src/api/deployment/notebooks.rs
index c376995f6..25701c0ca 100644
--- a/pgml-dashboard/src/api/deployment/notebooks.rs
+++ b/pgml-dashboard/src/api/deployment/notebooks.rs
@@ -20,7 +20,7 @@ use crate::utils::urls;
 
 // Returns notebook page
 #[get("/notebooks")]
-pub async fn notebooks(cluster: &Cluster) -> Result<ResponseOk, Error> {
+pub async fn notebooks(cluster: &Cluster, _connected: ConnectedCluster<'_>) -> Result<ResponseOk, Error> {
     let mut layout = crate::templates::WebAppBase::new("Dashboard", &cluster);
     layout.breadcrumbs(vec![NavLink::new("Notebooks", &urls::deployment_notebooks()).active()]);
 
@@ -36,7 +36,11 @@ pub async fn notebooks(cluster: &Cluster) -> Result<ResponseOk, Error> {
 
 // Returns the specified notebook page.
 #[get("/notebooks/<notebook_id>")]
-pub async fn notebook(cluster: &Cluster, notebook_id: i64) -> Result<ResponseOk, Error> {
+pub async fn notebook(
+    cluster: &Cluster,
+    notebook_id: i64,
+    _connected: ConnectedCluster<'_>,
+) -> Result<ResponseOk, Error> {
     let notebook = models::Notebook::get_by_id(cluster.pool(), notebook_id).await?;
 
     let mut layout = crate::templates::WebAppBase::new("Dashboard", &cluster);
diff --git a/pgml-dashboard/src/api/deployment/projects.rs b/pgml-dashboard/src/api/deployment/projects.rs
index 9204d52e4..3a1e060e0 100644
--- a/pgml-dashboard/src/api/deployment/projects.rs
+++ b/pgml-dashboard/src/api/deployment/projects.rs
@@ -16,7 +16,7 @@ use crate::utils::urls;
 
 // Returns the deployments projects page.
 #[get("/projects")]
-pub async fn projects(cluster: &Cluster) -> Result<ResponseOk, Error> {
+pub async fn projects(cluster: &Cluster, _connected: ConnectedCluster<'_>) -> Result<ResponseOk, Error> {
     let mut layout = crate::templates::WebAppBase::new("Dashboard", &cluster);
     layout.breadcrumbs(vec![NavLink::new("Projects", &urls::deployment_projects()).active()]);
 
@@ -32,7 +32,11 @@ pub async fn projects(cluster: &Cluster) -> Result<ResponseOk, Error> {
 
 // Return the specified project page.
 #[get("/projects/<project_id>")]
-pub async fn project(cluster: &Cluster, project_id: i64) -> Result<ResponseOk, Error> {
+pub async fn project(
+    cluster: &Cluster,
+    project_id: i64,
+    _connected: ConnectedCluster<'_>,
+) -> Result<ResponseOk, Error> {
     let project = models::Project::get_by_id(cluster.pool(), project_id).await?;
 
     let mut layout = crate::templates::WebAppBase::new("Dashboard", &cluster);
diff --git a/pgml-dashboard/src/api/deployment/snapshots.rs b/pgml-dashboard/src/api/deployment/snapshots.rs
index 2240cef90..ed87d48e7 100644
--- a/pgml-dashboard/src/api/deployment/snapshots.rs
+++ b/pgml-dashboard/src/api/deployment/snapshots.rs
@@ -17,7 +17,7 @@ use std::collections::HashMap;
 
 // Returns snapshots page
 #[get("/snapshots")]
-pub async fn snapshots(cluster: &Cluster) -> Result<ResponseOk, Error> {
+pub async fn snapshots(cluster: &Cluster, _connected: ConnectedCluster<'_>) -> Result<ResponseOk, Error> {
     let mut layout = crate::templates::WebAppBase::new("Dashboard", &cluster);
     layout.breadcrumbs(vec![NavLink::new("Snapshots", &urls::deployment_snapshots()).active()]);
 
@@ -33,7 +33,11 @@ pub async fn snapshots(cluster: &Cluster) -> Result<ResponseOk, Error> {
 
 // Returns the specific snapshot page
 #[get("/snapshots/<snapshot_id>")]
-pub async fn snapshot(cluster: &Cluster, snapshot_id: i64) -> Result<ResponseOk, Error> {
+pub async fn snapshot(
+    cluster: &Cluster,
+    snapshot_id: i64,
+    _connected: ConnectedCluster<'_>,
+) -> Result<ResponseOk, Error> {
     let snapshot = models::Snapshot::get_by_id(cluster.pool(), snapshot_id).await?;
 
     let mut layout = crate::templates::WebAppBase::new("Dashboard", &cluster);
diff --git a/pgml-dashboard/src/api/deployment/uploader.rs b/pgml-dashboard/src/api/deployment/uploader.rs
index fdad1665d..41f148007 100644
--- a/pgml-dashboard/src/api/deployment/uploader.rs
+++ b/pgml-dashboard/src/api/deployment/uploader.rs
@@ -19,7 +19,7 @@ use crate::utils::urls;
 
 // Returns the uploader page.
 #[get("/uploader")]
-pub async fn uploader(cluster: &Cluster) -> Result<ResponseOk, Error> {
+pub async fn uploader(cluster: &Cluster, _connected: ConnectedCluster<'_>) -> Result<ResponseOk, Error> {
     let mut layout = crate::templates::WebAppBase::new("Dashboard", &cluster);
     layout.breadcrumbs(vec![NavLink::new("Upload Data", &urls::deployment_uploader()).active()]);
 
diff --git a/pgml-dashboard/src/guards.rs b/pgml-dashboard/src/guards.rs
index e7b48bf60..3e8d4fb94 100644
--- a/pgml-dashboard/src/guards.rs
+++ b/pgml-dashboard/src/guards.rs
@@ -82,6 +82,7 @@ pub struct ConnectedCluster<'a> {
     pub inner: &'a Cluster,
 }
 
+// 404 rather than 500 if the cluster is not connected.
 #[rocket::async_trait]
 impl<'r> FromRequest<'r> for ConnectedCluster<'r> {
     type Error = ();

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