diff --git a/frontend/src/lib/components/Editor.svelte b/frontend/src/lib/components/Editor.svelte
index 6aabc30c2b..d59ba83ac0 100644
--- a/frontend/src/lib/components/Editor.svelte
+++ b/frontend/src/lib/components/Editor.svelte
@@ -1823,9 +1823,15 @@
 				scriptLang === 'bunnative' ||
 				scriptLang === 'nativets')
 		) {
-			const resourceTypes = await ResourceService.listResourceType({
-				workspace: $operatingWorkspace ?? ''
-			})
+			// The generated client resolves `undefined` for any response whose body it
+			// cannot read — `getResponseBody` swallows a parse failure and returns
+			// nothing, which `catchErrorCodes` passes through on a 2xx. Typing says
+			// otherwise, so without this the editor dies on mount rather than losing
+			// its resource-type autocomplete.
+			const resourceTypes =
+				(await ResourceService.listResourceType({
+					workspace: $operatingWorkspace ?? ''
+				})) ?? []
 
 			const namespace = formatResourceTypes(
 				resourceTypes,
diff --git a/frontend/src/lib/components/details/DetailPageLayout.svelte b/frontend/src/lib/components/details/DetailPageLayout.svelte
index 0e6a3183cf..131d4c9f38 100644
--- a/frontend/src/lib/components/details/DetailPageLayout.svelte
+++ b/frontend/src/lib/components/details/DetailPageLayout.svelte
@@ -67,7 +67,11 @@
 	}
 </script>
 
-<main class="h-screen w-full" bind:clientWidth>
+<!-- `h-full`, not `h-screen`: this page is also rendered inside an AI session's preview
+     panel, which is shorter than the viewport. Claiming the viewport's height there
+     overflows the pane, and the ancestors between are `overflow-visible`, so the bottom of
+     the run form is unreachable rather than merely clipped. -->
+<main class="h-full w-full" bind:clientWidth>
 	{#if useDesktopLayout}
 		<div class="h-full w-full flex flex-col">
 			{@render header?.({ wide: useDesktopLayout })}