diff --git a/.server-changes/task-landing-title-truncate.md b/.server-changes/task-landing-title-truncate.md
new file mode 100644
index 0000000000..64d17de13c
--- /dev/null
+++ b/.server-changes/task-landing-title-truncate.md
@@ -0,0 +1,6 @@
+---
+area: webapp
+type: fix
+---
+
+Truncate long task names in the task landing page side menu so they no longer push the Test button off the edge.
diff --git a/apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.agents.$agentParam/route.tsx b/apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.agents.$agentParam/route.tsx
index 560012b34b..b6da63acea 100644
--- a/apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.agents.$agentParam/route.tsx
+++ b/apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.agents.$agentParam/route.tsx
@@ -431,7 +431,7 @@ function AgentDetailSidebar({
 
   return (
     <div className="grid h-full grid-rows-[auto_1fr] overflow-hidden bg-background-bright">
-      <div className="flex items-center gap-2 border-b border-grid-dimmed py-2 pl-3 pr-2">
+      <div className="flex min-w-0 items-center gap-2 border-b border-grid-dimmed py-2 pl-3 pr-2">
         <Header2 className="flex min-w-0 flex-1 items-center gap-1.5">
           <CubeSparkleIcon className="size-4.5 shrink-0 text-agents" />
           <span className="truncate">{agent.slug}</span>
diff --git a/apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.tasks.standard.$taskParam/route.tsx b/apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.tasks.standard.$taskParam/route.tsx
index 816f2fca95..b02a391334 100644
--- a/apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.tasks.standard.$taskParam/route.tsx
+++ b/apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.tasks.standard.$taskParam/route.tsx
@@ -247,7 +247,7 @@ function TaskDetailSidebar({
 
   return (
     <div className="grid h-full grid-rows-[auto_1fr] overflow-hidden bg-background-bright">
-      <div className="flex items-center gap-2 border-b border-grid-dimmed py-2 pl-3 pr-2">
+      <div className="flex min-w-0 items-center gap-2 border-b border-grid-dimmed py-2 pl-3 pr-2">
         <Header2 className="flex min-w-0 flex-1 items-center gap-1.5">
           <TaskIcon className="size-4.5 shrink-0 text-tasks" />
           <span className="truncate">{task.slug}</span>