diff --git a/ui/web/src/pages/agents/agent-card.tsx b/ui/web/src/pages/agents/agent-card.tsx
index 42aaff6f..90372fe8 100644
--- a/ui/web/src/pages/agents/agent-card.tsx
+++ b/ui/web/src/pages/agents/agent-card.tsx
@@ -1,4 +1,4 @@
-import { Bot, Star, RotateCcw } from "lucide-react";
+import { Bot, Star, RotateCcw, Trash2 } from "lucide-react";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
 import type { AgentData } from "@/types/agent";
@@ -7,11 +7,12 @@ interface AgentCardProps {
   agent: AgentData;
   onClick: () => void;
   onResummon?: () => void;
+  onDelete?: () => void;
 }
 
 const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
 
-export function AgentCard({ agent, onClick, onResummon }: AgentCardProps) {
+export function AgentCard({ agent, onClick, onResummon, onDelete }: AgentCardProps) {
   const displayName = agent.display_name
     || (UUID_RE.test(agent.agent_key) ? "Unnamed Agent" : agent.agent_key);
 
@@ -91,6 +92,20 @@ export function AgentCard({ agent, onClick, onResummon }: AgentCardProps) {
             Resummon
           </Button>
         )}
+        {onDelete && (
+          <Button
+            variant="ghost"
+            size="xs"
+            className={`text-muted-foreground hover:text-destructive ${agent.status === "summon_failed" && onResummon ? "" : "ml-auto"}`}
+            onClick={(e) => {
+              e.stopPropagation();
+              onDelete();
+            }}
+          >
+            <Trash2 className="h-3.5 w-3.5" />
+            Delete
+          </Button>
+        )}
       </div>
     </button>
   );
diff --git a/ui/web/src/pages/agents/agent-detail/agent-detail-page.tsx b/ui/web/src/pages/agents/agent-detail/agent-detail-page.tsx
index 9bb589fe..90f4ab17 100644
--- a/ui/web/src/pages/agents/agent-detail/agent-detail-page.tsx
+++ b/ui/web/src/pages/agents/agent-detail/agent-detail-page.tsx
@@ -2,8 +2,9 @@ import { useState } from "react";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
-import { ArrowLeft, Bot, Star } from "lucide-react";
+import { ArrowLeft, Bot, Star, Trash2 } from "lucide-react";
 import { useAgentDetail } from "../hooks/use-agent-detail";
+import { useAgents } from "../hooks/use-agents";
 import { AgentGeneralTab } from "./agent-general-tab";
 import { AgentConfigTab } from "./agent-config-tab";
 import { AgentFilesTab } from "./agent-files-tab";
@@ -11,6 +12,7 @@ import { AgentSharesTab } from "./agent-shares-tab";
 import { AgentLinksTab } from "./agent-links-tab";
 import { AgentSkillsTab } from "./agent-skills-tab";
 import { SummoningModal } from "../summoning-modal";
+import { ConfirmDialog } from "@/components/shared/confirm-dialog";
 import { DeferredSpinner } from "@/components/shared/loading-skeleton";
 
 interface AgentDetailPageProps {
@@ -37,8 +39,10 @@ function agentSubtitle(agent: { display_name?: string; agent_key: string; id: st
 export function AgentDetailPage({ agentId, onBack }: AgentDetailPageProps) {
   const { agent, files, loading, updateAgent, getFile, setFile, regenerateAgent, resummonAgent, refresh } =
     useAgentDetail(agentId);
+  const { deleteAgent } = useAgents();
   const [summoningOpen, setSummoningOpen] = useState(false);
   const [activeTab, setActiveTab] = useState("general");
+  const [deleteOpen, setDeleteOpen] = useState(false);
 
   const handleRegenerate = async (prompt: string) => {
     await regenerateAgent(prompt);
@@ -106,6 +110,14 @@ export function AgentDetailPage({ agentId, onBack }: AgentDetailPageProps) {
             )}
           </div>
         </div>
+        <Button
+          variant="ghost"
+          size="icon"
+          className="shrink-0 text-muted-foreground hover:text-destructive"
+          onClick={() => setDeleteOpen(true)}
+        >
+          <Trash2 className="h-4 w-4" />
+        </Button>
       </div>
 
       {/* Tabs */}
@@ -161,6 +173,20 @@ export function AgentDetailPage({ agentId, onBack }: AgentDetailPageProps) {
         onCompleted={() => {}}
         onResummon={async () => { await resummonAgent(); }}
       />
+
+      <ConfirmDialog
+        open={deleteOpen}
+        onOpenChange={setDeleteOpen}
+        title="Delete Agent"
+        description={`Are you sure you want to delete "${title}"? This action cannot be undone.`}
+        confirmLabel="Delete"
+        variant="destructive"
+        onConfirm={async () => {
+          await deleteAgent(agentId);
+          setDeleteOpen(false);
+          onBack();
+        }}
+      />
     </div>
   );
 }
diff --git a/ui/web/src/pages/agents/agents-page.tsx b/ui/web/src/pages/agents/agents-page.tsx
index 1b2ca514..530fd48d 100644
--- a/ui/web/src/pages/agents/agents-page.tsx
+++ b/ui/web/src/pages/agents/agents-page.tsx
@@ -114,6 +114,7 @@ export function AgentsPage() {
                     }
                   }}
                   onResummon={() => handleResummon(agent)}
+                  onDelete={() => setDeleteTarget(agent.id)}
                 />
               ))}
             </div>
diff --git a/ui/web/src/pages/teams/team-card.tsx b/ui/web/src/pages/teams/team-card.tsx
index 5cf305e3..0074135a 100644
--- a/ui/web/src/pages/teams/team-card.tsx
+++ b/ui/web/src/pages/teams/team-card.tsx
@@ -1,13 +1,15 @@
-import { Users } from "lucide-react";
+import { Users, Trash2 } from "lucide-react";
 import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
 import type { TeamData } from "@/types/team";
 
 interface TeamCardProps {
   team: TeamData;
   onClick: () => void;
+  onDelete?: () => void;
 }
 
-export function TeamCard({ team, onClick }: TeamCardProps) {
+export function TeamCard({ team, onClick, onDelete }: TeamCardProps) {
   return (
     <button
       type="button"
@@ -41,6 +43,20 @@ export function TeamCard({ team, onClick }: TeamCardProps) {
             Lead: {team.lead_agent_key}
           </Badge>
         )}
+        {onDelete && (
+          <Button
+            variant="ghost"
+            size="xs"
+            className="ml-auto text-muted-foreground hover:text-destructive"
+            onClick={(e) => {
+              e.stopPropagation();
+              onDelete();
+            }}
+          >
+            <Trash2 className="h-3.5 w-3.5" />
+            Delete
+          </Button>
+        )}
       </div>
     </button>
   );
diff --git a/ui/web/src/pages/teams/team-detail-page.tsx b/ui/web/src/pages/teams/team-detail-page.tsx
index 30f9cb2f..48f026d5 100644
--- a/ui/web/src/pages/teams/team-detail-page.tsx
+++ b/ui/web/src/pages/teams/team-detail-page.tsx
@@ -2,8 +2,9 @@ import { useState, useEffect, useCallback } from "react";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
-import { ArrowLeft, Users } from "lucide-react";
+import { ArrowLeft, Users, Trash2 } from "lucide-react";
 import { DeferredSpinner } from "@/components/shared/loading-skeleton";
+import { ConfirmDialog } from "@/components/shared/confirm-dialog";
 import { useTeams } from "./hooks/use-teams";
 import { TeamMembersTab } from "./team-members-tab";
 import { TeamTasksTab } from "./team-tasks-tab";
@@ -17,11 +18,12 @@ interface TeamDetailPageProps {
 }
 
 export function TeamDetailPage({ teamId, onBack }: TeamDetailPageProps) {
-  const { getTeam, getTeamTasks, addMember, removeMember } = useTeams();
+  const { getTeam, getTeamTasks, addMember, removeMember, deleteTeam } = useTeams();
   const [team, setTeam] = useState<TeamData | null>(null);
   const [members, setMembers] = useState<TeamMemberData[]>([]);
   const [loading, setLoading] = useState(true);
   const [activeTab, setActiveTab] = useState("members");
+  const [deleteOpen, setDeleteOpen] = useState(false);
 
   const reload = useCallback(async () => {
     try {
@@ -103,6 +105,14 @@ export function TeamDetailPage({ teamId, onBack }: TeamDetailPageProps) {
             <p className="mt-1 text-sm text-muted-foreground/70">{team.description}</p>
           )}
         </div>
+        <Button
+          variant="ghost"
+          size="icon"
+          className="shrink-0 text-muted-foreground hover:text-destructive"
+          onClick={() => setDeleteOpen(true)}
+        >
+          <Trash2 className="h-4 w-4" />
+        </Button>
       </div>
 
       {/* Tabs */}
@@ -137,6 +147,20 @@ export function TeamDetailPage({ teamId, onBack }: TeamDetailPageProps) {
           </TabsContent>
         </Tabs>
       </div>
+
+      <ConfirmDialog
+        open={deleteOpen}
+        onOpenChange={setDeleteOpen}
+        title="Delete Team"
+        description={`Are you sure you want to delete "${team.name}"? This action cannot be undone.`}
+        confirmLabel="Delete"
+        variant="destructive"
+        onConfirm={async () => {
+          await deleteTeam(teamId);
+          setDeleteOpen(false);
+          onBack();
+        }}
+      />
     </div>
   );
 }
diff --git a/ui/web/src/pages/teams/teams-page.tsx b/ui/web/src/pages/teams/teams-page.tsx
index 73815bb7..76a1e7c5 100644
--- a/ui/web/src/pages/teams/teams-page.tsx
+++ b/ui/web/src/pages/teams/teams-page.tsx
@@ -97,6 +97,7 @@ export function TeamsPage() {
                   key={team.id}
                   team={team}
                   onClick={() => navigate(`/teams/${team.id}`)}
+                  onDelete={() => setDeleteTarget({ id: team.id, name: team.name })}
                 />
               ))}
             </div>