diff --git a/ui/src/App.tsx b/ui/src/App.tsx
index b8d77f4..d00f809 100644
--- a/ui/src/App.tsx
+++ b/ui/src/App.tsx
@@ -133,6 +133,7 @@ function boardRoutes() {
       <Route path="projects/:projectId/issues" element={<ProjectDetail />} />
       <Route path="projects/:projectId/issues/:filter" element={<ProjectDetail />} />
       <Route path="projects/:projectId/configuration" element={<ProjectDetail />} />
+      <Route path="projects/:projectId/budget" element={<ProjectDetail />} />
       <Route path="issues" element={<Issues />} />
       <Route path="issues/all" element={<Navigate to="/issues" replace />} />
       <Route path="issues/active" element={<Navigate to="/issues" replace />} />
diff --git a/ui/src/components/BudgetPolicyCard.tsx b/ui/src/components/BudgetPolicyCard.tsx
index 4ff7209..7834e8c 100644
--- a/ui/src/components/BudgetPolicyCard.tsx
+++ b/ui/src/components/BudgetPolicyCard.tsx
@@ -33,11 +33,13 @@ export function BudgetPolicyCard({
   onSave,
   isSaving,
   compact = false,
+  variant = "card",
 }: {
   summary: BudgetPolicySummary;
   onSave?: (amountCents: number) => void;
   isSaving?: boolean;
   compact?: boolean;
+  variant?: "card" | "plain";
 }) {
   const [draftBudget, setDraftBudget] = useState(centsInputValue(summary.amount));
 
@@ -49,6 +51,142 @@ export function BudgetPolicyCard({
   const canSave = typeof parsedDraft === "number" && parsedDraft !== summary.amount && Boolean(onSave);
   const progress = summary.amount > 0 ? Math.min(100, summary.utilizationPercent) : 0;
   const StatusIcon = summary.status === "hard_stop" ? ShieldAlert : summary.status === "warning" ? AlertTriangle : Wallet;
+  const isPlain = variant === "plain";
+
+  const observedBudgetGrid = isPlain ? (
+    <div className="grid gap-6 sm:grid-cols-2">
+      <div>
+        <div className="text-[11px] uppercase tracking-[0.18em] text-muted-foreground">Observed</div>
+        <div className="mt-2 text-xl font-semibold tabular-nums">{formatCents(summary.observedAmount)}</div>
+        <div className="mt-1 text-xs text-muted-foreground">
+          {summary.amount > 0 ? `${summary.utilizationPercent}% of limit` : "No cap configured"}
+        </div>
+      </div>
+      <div>
+        <div className="text-[11px] uppercase tracking-[0.18em] text-muted-foreground">Budget</div>
+        <div className="mt-2 text-xl font-semibold tabular-nums">
+          {summary.amount > 0 ? formatCents(summary.amount) : "Disabled"}
+        </div>
+        <div className="mt-1 text-xs text-muted-foreground">
+          Soft alert at {summary.warnPercent}%{summary.paused && summary.pauseReason ? ` · ${summary.pauseReason} pause` : ""}
+        </div>
+      </div>
+    </div>
+  ) : (
+    <div className="grid gap-3 sm:grid-cols-2">
+      <div className="rounded-xl border border-border/70 bg-black/[0.18] px-4 py-3">
+        <div className="text-[11px] uppercase tracking-[0.18em] text-muted-foreground">Observed</div>
+        <div className="mt-2 text-xl font-semibold tabular-nums">{formatCents(summary.observedAmount)}</div>
+        <div className="mt-1 text-xs text-muted-foreground">
+          {summary.amount > 0 ? `${summary.utilizationPercent}% of limit` : "No cap configured"}
+        </div>
+      </div>
+      <div className="rounded-xl border border-border/70 bg-black/[0.18] px-4 py-3">
+        <div className="text-[11px] uppercase tracking-[0.18em] text-muted-foreground">Budget</div>
+        <div className="mt-2 text-xl font-semibold tabular-nums">
+          {summary.amount > 0 ? formatCents(summary.amount) : "Disabled"}
+        </div>
+        <div className="mt-1 text-xs text-muted-foreground">
+          Soft alert at {summary.warnPercent}%{summary.paused && summary.pauseReason ? ` · ${summary.pauseReason} pause` : ""}
+        </div>
+      </div>
+    </div>
+  );
+
+  const progressSection = (
+    <div className="space-y-2">
+      <div className="flex items-center justify-between text-xs text-muted-foreground">
+        <span>Remaining</span>
+        <span>{summary.amount > 0 ? formatCents(summary.remainingAmount) : "Unlimited"}</span>
+      </div>
+      <div className={cn("h-2 overflow-hidden rounded-full", isPlain ? "bg-border/70" : "bg-muted/70")}>
+        <div
+          className={cn(
+            "h-full rounded-full transition-[width,background-color] duration-200",
+            summary.status === "hard_stop"
+              ? "bg-red-400"
+              : summary.status === "warning"
+                ? "bg-amber-300"
+                : "bg-emerald-300",
+          )}
+          style={{ width: `${progress}%` }}
+        />
+      </div>
+    </div>
+  );
+
+  const pausedPane = summary.paused ? (
+    <div className="flex items-start gap-2 rounded-xl border border-red-500/30 bg-red-500/10 px-3 py-2 text-sm text-red-100">
+      <PauseCircle className="mt-0.5 h-4 w-4 shrink-0" />
+      <div>
+        {summary.scopeType === "project"
+          ? "Execution is paused for this project until the budget is raised or the incident is dismissed."
+          : "Heartbeats are paused for this scope until the budget is raised or the incident is dismissed."}
+      </div>
+    </div>
+  ) : null;
+
+  const saveSection = onSave ? (
+    <div className={cn("flex flex-col gap-3 sm:flex-row sm:items-end", isPlain ? "" : "rounded-xl border border-border/70 bg-background/50 p-3")}>
+      <div className="min-w-0 flex-1">
+        <label className="text-[11px] uppercase tracking-[0.18em] text-muted-foreground">
+          Budget (USD)
+        </label>
+        <Input
+          value={draftBudget}
+          onChange={(event) => setDraftBudget(event.target.value)}
+          className="mt-2"
+          inputMode="decimal"
+          placeholder="0.00"
+        />
+      </div>
+      <Button
+        onClick={() => {
+          if (typeof parsedDraft === "number" && onSave) onSave(parsedDraft);
+        }}
+        disabled={!canSave || isSaving || parsedDraft === null}
+      >
+        {isSaving ? "Saving..." : summary.amount > 0 ? "Update budget" : "Set budget"}
+      </Button>
+    </div>
+  ) : null;
+
+  if (isPlain) {
+    return (
+      <div className="space-y-6">
+        <div className="flex items-start justify-between gap-6">
+          <div>
+            <div className="text-[11px] uppercase tracking-[0.22em] text-muted-foreground">
+              {summary.scopeType}
+            </div>
+            <div className="mt-2 text-xl font-semibold">{summary.scopeName}</div>
+            <div className="mt-2 text-sm text-muted-foreground">{windowLabel(summary.windowKind)}</div>
+          </div>
+          <div
+            className={cn(
+              "inline-flex items-center gap-2 text-[11px] uppercase tracking-[0.18em]",
+              summary.status === "hard_stop"
+                ? "text-red-300"
+                : summary.status === "warning"
+                  ? "text-amber-200"
+                  : "text-muted-foreground",
+            )}
+          >
+            <StatusIcon className="h-3.5 w-3.5" />
+            {summary.paused ? "Paused" : summary.status === "warning" ? "Warning" : summary.status === "hard_stop" ? "Hard stop" : "Healthy"}
+          </div>
+        </div>
+
+        {observedBudgetGrid}
+        {progressSection}
+        {pausedPane}
+        {saveSection}
+        {parsedDraft === null ? (
+          <p className="text-xs text-destructive">Enter a valid non-negative dollar amount.</p>
+        ) : null}
+      </div>
+    );
+  }
 
   return (
     <Card className={cn("overflow-hidden border-border/70 bg-card/80", compact ? "" : "shadow-[0_20px_80px_-40px_rgba(0,0,0,0.55)]")}>
@@ -68,84 +206,12 @@ export function BudgetPolicyCard({
         </div>
       </CardHeader>
       <CardContent className={cn("space-y-4", compact ? "px-4 pb-4 pt-0" : "px-5 pb-5 pt-0")}>
-        <div className="grid gap-3 sm:grid-cols-2">
-          <div className="rounded-xl border border-border/70 bg-black/[0.18] px-4 py-3">
-            <div className="text-[11px] uppercase tracking-[0.18em] text-muted-foreground">Observed</div>
-            <div className="mt-2 text-xl font-semibold tabular-nums">{formatCents(summary.observedAmount)}</div>
-            <div className="mt-1 text-xs text-muted-foreground">
-              {summary.amount > 0 ? `${summary.utilizationPercent}% of limit` : "No cap configured"}
-            </div>
-          </div>
-          <div className="rounded-xl border border-border/70 bg-black/[0.18] px-4 py-3">
-            <div className="text-[11px] uppercase tracking-[0.18em] text-muted-foreground">Budget</div>
-            <div className="mt-2 text-xl font-semibold tabular-nums">
-              {summary.amount > 0 ? formatCents(summary.amount) : "Disabled"}
-            </div>
-            <div className="mt-1 text-xs text-muted-foreground">
-              Soft alert at {summary.warnPercent}%{summary.paused && summary.pauseReason ? ` · ${summary.pauseReason} pause` : ""}
-            </div>
-          </div>
-        </div>
-
-        <div className="space-y-2">
-          <div className="flex items-center justify-between text-xs text-muted-foreground">
-            <span>Remaining</span>
-            <span>{summary.amount > 0 ? formatCents(summary.remainingAmount) : "Unlimited"}</span>
-          </div>
-          <div className="h-2 overflow-hidden rounded-full bg-muted/70">
-            <div
-              className={cn(
-                "h-full rounded-full transition-[width,background-color] duration-200",
-                summary.status === "hard_stop"
-                  ? "bg-red-400"
-                  : summary.status === "warning"
-                    ? "bg-amber-300"
-                    : "bg-emerald-300",
-              )}
-              style={{ width: `${progress}%` }}
-            />
-          </div>
-        </div>
-
-        {summary.paused ? (
-          <div className="flex items-start gap-2 rounded-xl border border-red-500/30 bg-red-500/10 px-3 py-2 text-sm text-red-100">
-            <PauseCircle className="mt-0.5 h-4 w-4 shrink-0" />
-            <div>
-              {summary.scopeType === "project"
-                ? "Execution is paused for this project until the budget is raised or the incident is dismissed."
-                : "Heartbeats are paused for this scope until the budget is raised or the incident is dismissed."}
-            </div>
-          </div>
-        ) : null}
-
-        {onSave ? (
-          <div className="rounded-xl border border-border/70 bg-background/50 p-3">
-            <div className="flex flex-col gap-3 sm:flex-row sm:items-end">
-              <div className="min-w-0 flex-1">
-                <label className="text-[11px] uppercase tracking-[0.18em] text-muted-foreground">
-                  Budget (USD)
-                </label>
-                <Input
-                  value={draftBudget}
-                  onChange={(event) => setDraftBudget(event.target.value)}
-                  className="mt-2"
-                  inputMode="decimal"
-                  placeholder="0.00"
-                />
-              </div>
-              <Button
-                onClick={() => {
-                  if (typeof parsedDraft === "number" && onSave) onSave(parsedDraft);
-                }}
-                disabled={!canSave || isSaving || parsedDraft === null}
-              >
-                {isSaving ? "Saving..." : summary.amount > 0 ? "Update budget" : "Set budget"}
-              </Button>
-            </div>
-            {parsedDraft === null ? (
-              <p className="mt-2 text-xs text-destructive">Enter a valid non-negative dollar amount.</p>
-            ) : null}
-          </div>
+        {observedBudgetGrid}
+        {progressSection}
+        {pausedPane}
+        {saveSection}
+        {parsedDraft === null ? (
+          <p className="text-xs text-destructive">Enter a valid non-negative dollar amount.</p>
         ) : null}
       </CardContent>
     </Card>
diff --git a/ui/src/components/BudgetSidebarMarker.tsx b/ui/src/components/BudgetSidebarMarker.tsx
new file mode 100644
index 0000000..43f10b9
--- /dev/null
+++ b/ui/src/components/BudgetSidebarMarker.tsx
@@ -0,0 +1,13 @@
+import { DollarSign } from "lucide-react";
+
+export function BudgetSidebarMarker({ title = "Paused by budget" }: { title?: string }) {
+  return (
+    <span
+      title={title}
+      aria-label={title}
+      className="ml-auto inline-flex h-5 w-5 shrink-0 items-center justify-center rounded-full bg-red-500/90 text-white shadow-[0_0_0_1px_rgba(255,255,255,0.08)]"
+    >
+      <DollarSign className="h-3 w-3" />
+    </span>
+  );
+}
diff --git a/ui/src/components/SidebarAgents.tsx b/ui/src/components/SidebarAgents.tsx
index b94ccfe..5b438f0 100644
--- a/ui/src/components/SidebarAgents.tsx
+++ b/ui/src/components/SidebarAgents.tsx
@@ -10,6 +10,7 @@ import { heartbeatsApi } from "../api/heartbeats";
 import { queryKeys } from "../lib/queryKeys";
 import { cn, agentRouteRef, agentUrl } from "../lib/utils";
 import { AgentIcon } from "./AgentIconPicker";
+import { BudgetSidebarMarker } from "./BudgetSidebarMarker";
 import {
   Collapsible,
   CollapsibleContent,
@@ -124,15 +125,22 @@ export function SidebarAgents() {
               >
                 <AgentIcon icon={agent.icon} className="shrink-0 h-3.5 w-3.5 text-muted-foreground" />
                 <span className="flex-1 truncate">{agent.name}</span>
-                {runCount > 0 && (
+                {(agent.pauseReason === "budget" || runCount > 0) && (
                   <span className="ml-auto flex items-center gap-1.5 shrink-0">
-                    <span className="relative flex h-2 w-2">
-                      <span className="animate-pulse absolute inline-flex h-full w-full rounded-full bg-blue-400 opacity-75" />
-                      <span className="relative inline-flex rounded-full h-2 w-2 bg-blue-500" />
-                    </span>
-                    <span className="text-[11px] font-medium text-blue-600 dark:text-blue-400">
-                      {runCount} live
-                    </span>
+                    {agent.pauseReason === "budget" ? (
+                      <BudgetSidebarMarker title="Agent paused by budget" />
+                    ) : null}
+                    {runCount > 0 ? (
+                      <span className="relative flex h-2 w-2">
+                        <span className="animate-pulse absolute inline-flex h-full w-full rounded-full bg-blue-400 opacity-75" />
+                        <span className="relative inline-flex rounded-full h-2 w-2 bg-blue-500" />
+                      </span>
+                    ) : null}
+                    {runCount > 0 ? (
+                      <span className="text-[11px] font-medium text-blue-600 dark:text-blue-400">
+                        {runCount} live
+                      </span>
+                    ) : null}
                   </span>
                 )}
               </NavLink>
diff --git a/ui/src/components/SidebarProjects.tsx b/ui/src/components/SidebarProjects.tsx
index 72d0a21..cc6f417 100644
--- a/ui/src/components/SidebarProjects.tsx
+++ b/ui/src/components/SidebarProjects.tsx
@@ -20,6 +20,7 @@ import { projectsApi } from "../api/projects";
 import { queryKeys } from "../lib/queryKeys";
 import { cn, projectRouteRef } from "../lib/utils";
 import { useProjectOrder } from "../hooks/useProjectOrder";
+import { BudgetSidebarMarker } from "./BudgetSidebarMarker";
 import {
   Collapsible,
   CollapsibleContent,
@@ -88,6 +89,7 @@ function SortableProjectItem({
             style={{ backgroundColor: project.color ?? "#6366f1" }}
           />
           <span className="flex-1 truncate">{project.name}</span>
+          {project.pauseReason === "budget" ? <BudgetSidebarMarker title="Project paused by budget" /> : null}
         </NavLink>
         {projectSidebarSlots.length > 0 && (
           <div className="ml-5 flex flex-col gap-0.5">
diff --git a/ui/src/pages/AgentDetail.tsx b/ui/src/pages/AgentDetail.tsx
index c1c9ebf..3203935 100644
--- a/ui/src/pages/AgentDetail.tsx
+++ b/ui/src/pages/AgentDetail.tsx
@@ -185,10 +185,11 @@ function scrollToContainerBottom(container: ScrollContainer, behavior: ScrollBeh
   container.scrollTo({ top: container.scrollHeight, behavior });
 }
 
-type AgentDetailView = "dashboard" | "configuration" | "runs";
+type AgentDetailView = "dashboard" | "configuration" | "runs" | "budget";
 
 function parseAgentDetailView(value: string | null): AgentDetailView {
   if (value === "configure" || value === "configuration") return "configuration";
+  if (value === "budget") return "budget";
   if (value === "runs") return value;
   return "dashboard";
 }
@@ -638,6 +639,7 @@ export function AgentDetail() {
               { value: "dashboard", label: "Dashboard" },
               { value: "configuration", label: "Configuration" },
               { value: "runs", label: "Runs" },
+              { value: "budget", label: "Budget" },
             ]}
             value={activeView}
             onValueChange={(value) => navigate(`/agents/${canonicalAgentRef}/${value}`)}
@@ -645,15 +647,6 @@ export function AgentDetail() {
         </Tabs>
       )}
 
-      {!urlRunId && resolvedCompanyId ? (
-        <BudgetPolicyCard
-          summary={agentBudgetSummary}
-          isSaving={budgetMutation.isPending}
-          compact
-          onSave={(amount) => budgetMutation.mutate(amount)}
-        />
-      ) : null}
-
       {actionError && <p className="text-sm text-destructive">{actionError}</p>}
       {isPendingApproval && (
         <p className="text-sm text-amber-500">
@@ -752,6 +745,17 @@ export function AgentDetail() {
           adapterType={agent.adapterType}
         />
       )}
+
+      {activeView === "budget" && resolvedCompanyId ? (
+        <div className="max-w-3xl">
+          <BudgetPolicyCard
+            summary={agentBudgetSummary}
+            isSaving={budgetMutation.isPending}
+            onSave={(amount) => budgetMutation.mutate(amount)}
+            variant="plain"
+          />
+        </div>
+      ) : null}
     </div>
   );
 }
diff --git a/ui/src/pages/ProjectDetail.tsx b/ui/src/pages/ProjectDetail.tsx
index b74eb9d..4de4078 100644
--- a/ui/src/pages/ProjectDetail.tsx
+++ b/ui/src/pages/ProjectDetail.tsx
@@ -26,7 +26,7 @@ import { PluginSlotMount, PluginSlotOutlet, usePluginSlots } from "@/plugins/slo
 
 /* ── Top-level tab types ── */
 
-type ProjectBaseTab = "overview" | "list" | "configuration";
+type ProjectBaseTab = "overview" | "list" | "configuration" | "budget";
 type ProjectPluginTab = `plugin:${string}`;
 type ProjectTab = ProjectBaseTab | ProjectPluginTab;
 
@@ -41,6 +41,7 @@ function resolveProjectTab(pathname: string, projectId: string): ProjectTab | nu
   const tab = segments[projectsIdx + 2];
   if (tab === "overview") return "overview";
   if (tab === "configuration") return "configuration";
+  if (tab === "budget") return "budget";
   if (tab === "issues") return "list";
   return null;
 }
@@ -328,6 +329,10 @@ export function ProjectDetail() {
       navigate(`/projects/${canonicalProjectRef}/configuration`, { replace: true });
       return;
     }
+    if (activeTab === "budget") {
+      navigate(`/projects/${canonicalProjectRef}/budget`, { replace: true });
+      return;
+    }
     if (activeTab === "list") {
       if (filter) {
         navigate(`/projects/${canonicalProjectRef}/issues/${filter}`, { replace: true });
@@ -454,6 +459,8 @@ export function ProjectDetail() {
     }
     if (tab === "overview") {
       navigate(`/projects/${canonicalProjectRef}/overview`);
+    } else if (tab === "budget") {
+      navigate(`/projects/${canonicalProjectRef}/budget`);
     } else if (tab === "configuration") {
       navigate(`/projects/${canonicalProjectRef}/configuration`);
     } else {
@@ -470,12 +477,20 @@ export function ProjectDetail() {
             onSelect={(color) => updateProject.mutate({ color })}
           />
         </div>
-        <InlineEditor
-          value={project.name}
-          onSave={(name) => updateProject.mutate({ name })}
-          as="h2"
-          className="text-xl font-bold"
-        />
+        <div className="min-w-0 space-y-2">
+          <InlineEditor
+            value={project.name}
+            onSave={(name) => updateProject.mutate({ name })}
+            as="h2"
+            className="text-xl font-bold"
+          />
+          {project.pauseReason === "budget" ? (
+            <div className="inline-flex items-center gap-2 rounded-full border border-red-500/30 bg-red-500/10 px-3 py-1 text-[11px] font-medium uppercase tracking-[0.18em] text-red-200">
+              <span className="h-2 w-2 rounded-full bg-red-400" />
+              Paused by budget hard stop
+            </div>
+          ) : null}
+        </div>
       </div>
 
       <PluginSlotOutlet
@@ -515,6 +530,7 @@ export function ProjectDetail() {
             { value: "overview", label: "Overview" },
             { value: "list", label: "List" },
             { value: "configuration", label: "Configuration" },
+            { value: "budget", label: "Budget" },
             ...pluginTabItems.map((item) => ({
               value: item.value,
               label: item.label,
@@ -526,15 +542,6 @@ export function ProjectDetail() {
         />
       </Tabs>
 
-      {resolvedCompanyId ? (
-        <BudgetPolicyCard
-          summary={projectBudgetSummary}
-          compact
-          isSaving={budgetMutation.isPending}
-          onSave={(amount) => budgetMutation.mutate(amount)}
-        />
-      ) : null}
-
       {activeTab === "overview" && (
         <OverviewContent
           project={project}
@@ -563,6 +570,17 @@ export function ProjectDetail() {
         </div>
       )}
 
+      {activeTab === "budget" && resolvedCompanyId ? (
+        <div className="max-w-3xl">
+          <BudgetPolicyCard
+            summary={projectBudgetSummary}
+            variant="plain"
+            isSaving={budgetMutation.isPending}
+            onSave={(amount) => budgetMutation.mutate(amount)}
+          />
+        </div>
+      ) : null}
+
       {activePluginTab && (
         <PluginSlotMount
           slot={activePluginTab.slot}