diff --git a/src/app/(dashboard)/fleet/page.tsx b/src/app/(dashboard)/fleet/page.tsx
index 148a7605..08ceb331 100644
--- a/src/app/(dashboard)/fleet/page.tsx
+++ b/src/app/(dashboard)/fleet/page.tsx
@@ -186,15 +186,15 @@ export default function FleetPage() {
   return (
     <div className="space-y-6">
       <div className="flex items-center gap-1">
+        <span className="rounded-full px-3 h-7 text-xs font-medium border transition-colors bg-accent text-accent-foreground border-transparent inline-flex items-center">
+          Nodes
+        </span>
         <Link
           href="/fleet/overview"
           className="rounded-full px-3 h-7 text-xs font-medium border transition-colors bg-transparent text-muted-foreground border-border hover:bg-muted inline-flex items-center"
         >
           Overview
         </Link>
-        <span className="rounded-full px-3 h-7 text-xs font-medium border transition-colors bg-accent text-accent-foreground border-transparent inline-flex items-center">
-          Nodes
-        </span>
       </div>
 
       {/* Toolbar — shown when not loading and nodes exist or filters active */}
diff --git a/src/app/(dashboard)/pipelines/[id]/page.tsx b/src/app/(dashboard)/pipelines/[id]/page.tsx
index 89e63c2a..502af3a4 100644
--- a/src/app/(dashboard)/pipelines/[id]/page.tsx
+++ b/src/app/(dashboard)/pipelines/[id]/page.tsx
@@ -33,7 +33,6 @@ import { ComponentPalette } from "@/components/flow/component-palette";
 import { FlowCanvas } from "@/components/flow/flow-canvas";
 import { FlowToolbar } from "@/components/flow/flow-toolbar";
 import { AiPipelineDialog } from "@/components/flow/ai-pipeline-dialog";
-import { AiDebugPanel } from "@/components/flow/ai-debug-panel";
 import { DetailPanel } from "@/components/flow/detail-panel";
 import { DeployDialog } from "@/components/flow/deploy-dialog";
 import { SaveTemplateDialog } from "@/components/flow/save-template-dialog";
@@ -128,7 +127,6 @@ function PipelineBuilderInner({ pipelineId }: { pipelineId: string }) {
   const [metricsOpen, setMetricsOpen] = useState(false);
   const [logsOpen, setLogsOpen] = useState(false);
   const [aiDialogOpen, setAiDialogOpen] = useState(false);
-  const [debugPanelOpen, setDebugPanelOpen] = useState(false);
 
   const selectedTeamId = useTeamStore((s) => s.selectedTeamId);
   const teamQuery = useQuery(
@@ -202,14 +200,27 @@ function PipelineBuilderInner({ pipelineId }: { pipelineId: string }) {
     ),
   );
 
-  // Lightweight check for recent errors (for toolbar badge) — 24h window
-  const [errorCheckSince] = useState(
-    () => new Date(Date.now() - 24 * 60 * 60 * 1000),
-  );
+  // Compute session start from minimum uptime across all running nodes.
+  // Use dataUpdatedAt (stable timestamp from React Query) instead of Date.now()
+  // to satisfy react-hooks/purity (no impure calls) and avoid useEffect+setState.
+  const sessionStart = useMemo(() => {
+    const statuses = pipelineQuery.data?.nodeStatuses;
+    if (!statuses || statuses.length === 0) return null;
+    const uptimes = statuses
+      .filter((s: { status: string; uptimeSeconds: number | null }) =>
+        s.status === "RUNNING" && s.uptimeSeconds != null
+      )
+      .map((s: { uptimeSeconds: number | null }) => s.uptimeSeconds!);
+    if (uptimes.length === 0) return null;
+    const minUptime = Math.min(...uptimes);
+    return new Date(pipelineQuery.dataUpdatedAt - minUptime * 1000);
+  }, [pipelineQuery.data?.nodeStatuses, pipelineQuery.dataUpdatedAt]);
+
+  // Lightweight check for recent errors (for toolbar badge) — scoped to current session
   const recentErrorsQuery = useQuery(
     trpc.pipeline.logs.queryOptions(
-      { pipelineId, levels: ["ERROR"], limit: 1, since: errorCheckSince },
-      { enabled: !!isDeployed && !logsOpen, refetchInterval: 10000 },
+      { pipelineId, levels: ["ERROR"], limit: 1, since: sessionStart! },
+      { enabled: !!isDeployed && !logsOpen && !!sessionStart, refetchInterval: 10000 },
     ),
   );
   const hasRecentErrors = (recentErrorsQuery.data?.items?.length ?? 0) > 0;
@@ -464,7 +475,6 @@ function PipelineBuilderInner({ pipelineId }: { pipelineId: string }) {
             onDiscardChanges={() => setDiscardOpen(true)}
             aiEnabled={aiEnabled}
             onAiOpen={() => setAiDialogOpen(true)}
-            onDebugOpen={() => setDebugPanelOpen(true)}
             deployedVersionNumber={pipelineQuery.data?.deployedVersionNumber}
           />
         </div>
@@ -582,13 +592,6 @@ function PipelineBuilderInner({ pipelineId }: { pipelineId: string }) {
           onOpenChange={setAiDialogOpen}
           pipelineId={pipelineId}
           environmentName={pipelineQuery.data?.environment?.name}
-        />
-      )}
-      {aiEnabled && (
-        <AiDebugPanel
-          open={debugPanelOpen}
-          onOpenChange={setDebugPanelOpen}
-          pipelineId={pipelineId}
           currentYaml={currentYaml}
         />
       )}
diff --git a/src/app/(dashboard)/pipelines/page.tsx b/src/app/(dashboard)/pipelines/page.tsx
index 2f8b3131..1c6abafc 100644
--- a/src/app/(dashboard)/pipelines/page.tsx
+++ b/src/app/(dashboard)/pipelines/page.tsx
@@ -124,6 +124,15 @@ function getReductionPercent(totals: {
   return Math.max(0, (1 - evOut / evIn) * 100);
 }
 
+function formatUptime(seconds: number | null): string {
+  if (seconds == null) return "\u2014";
+  if (seconds < 60) return `${seconds}s`;
+  if (seconds < 3600) return `${Math.floor(seconds / 60)}m`;
+  if (seconds < 86400)
+    return `${Math.floor(seconds / 3600)}h ${Math.floor((seconds % 3600) / 60)}m`;
+  return `${Math.floor(seconds / 86400)}d ${Math.floor((seconds % 86400) / 3600)}h`;
+}
+
 /** Derive display status string for a pipeline row. */
 function derivePipelineStatus(
   pipeline: { isDraft: boolean; nodeStatuses: Array<{ status: string }> },
@@ -587,6 +596,7 @@ export default function PipelinesPage() {
                 currentDirection={sortDirection}
                 onSort={handleSort}
               />
+              <TableHead className="text-right">Uptime</TableHead>
               <TableHead className="text-center">Health</TableHead>
               <SortableHeader
                 label="Events/sec In"
@@ -758,6 +768,10 @@ export default function PipelinesPage() {
                       )}
                     </div>
                   </TableCell>
+                  {/* Uptime */}
+                  <TableCell className="text-right font-mono text-sm tabular-nums text-muted-foreground">
+                    {formatUptime(pipeline.minUptimeSeconds)}
+                  </TableCell>
                   {/* Health — batch data instead of per-row query */}
                   <TableCell className="text-center">
                     {pipeline.isDraft ? (
diff --git a/src/components/flow/ai-debug-panel.tsx b/src/components/flow/ai-debug-panel.tsx
deleted file mode 100644
index 8dbc9541..00000000
--- a/src/components/flow/ai-debug-panel.tsx
+++ /dev/null
@@ -1,229 +0,0 @@
-"use client";
-
-import { useState, useRef, useEffect, useCallback } from "react";
-import {
-  Bug,
-  Bot,
-  User,
-  Loader2,
-  Send,
-  AlertTriangle,
-  MessageSquarePlus,
-} from "lucide-react";
-import { Button } from "@/components/ui/button";
-import {
-  Dialog,
-  DialogContent,
-  DialogDescription,
-  DialogHeader,
-  DialogTitle,
-} from "@/components/ui/dialog";
-import { useAiDebugConversation } from "@/hooks/use-ai-debug-conversation";
-
-interface AiDebugPanelProps {
-  open: boolean;
-  onOpenChange: (open: boolean) => void;
-  pipelineId: string;
-  currentYaml?: string;
-}
-
-export function AiDebugPanel({
-  open,
-  onOpenChange,
-  pipelineId,
-  currentYaml,
-}: AiDebugPanelProps) {
-  const [prompt, setPrompt] = useState("");
-  const textareaRef = useRef<HTMLTextAreaElement>(null);
-  const messagesEndRef = useRef<HTMLDivElement>(null);
-
-  const conversation = useAiDebugConversation({ pipelineId, currentYaml });
-
-  // Auto-scroll to bottom on new messages or streaming content
-  useEffect(() => {
-    messagesEndRef.current?.scrollIntoView({ behavior: "smooth" });
-  }, [conversation.messages, conversation.streamingContent]);
-
-  // Auto-grow textarea
-  useEffect(() => {
-    const ta = textareaRef.current;
-    if (!ta) return;
-    ta.style.height = "auto";
-    const maxHeight = 4 * 24; // 4 lines
-    ta.style.height = `${Math.min(ta.scrollHeight, maxHeight)}px`;
-  }, [prompt]);
-
-  const handleSubmit = useCallback(
-    (e?: React.FormEvent) => {
-      e?.preventDefault();
-      if (!prompt.trim()) return;
-      const message = prompt;
-      setPrompt("");
-      conversation.sendMessage(message);
-    },
-    [prompt, conversation],
-  );
-
-  const handleKeyDown = (e: React.KeyboardEvent) => {
-    if (e.key === "Enter" && !e.shiftKey) {
-      e.preventDefault();
-      handleSubmit();
-    }
-  };
-
-  return (
-    <Dialog open={open} onOpenChange={onOpenChange}>
-      <DialogContent className="sm:max-w-2xl max-h-[85vh] flex flex-col min-h-0 overflow-hidden">
-        <DialogHeader>
-          <DialogTitle className="flex items-center gap-2">
-            <Bug className="h-4 w-4" />
-            Debug with AI
-          </DialogTitle>
-          <DialogDescription>
-            Ask questions about your pipeline&apos;s configuration, metrics, and
-            errors
-          </DialogDescription>
-        </DialogHeader>
-
-        {conversation.isLoading ? (
-          <div className="flex items-center justify-center py-8">
-            <Loader2 className="h-5 w-5 animate-spin text-muted-foreground" />
-          </div>
-        ) : (
-          <div className="flex flex-col flex-1 min-h-0 overflow-hidden">
-            {/* Message thread */}
-            <div className="flex-1 min-h-0 overflow-y-auto pr-2">
-              <div className="space-y-4 pb-4">
-                {conversation.messages.length === 0 &&
-                  !conversation.isStreaming && (
-                    <p className="text-sm text-muted-foreground text-center py-8">
-                      Ask the AI to help debug your pipeline — it has access to
-                      your configuration, metrics, SLI health, and recent error
-                      logs.
-                    </p>
-                  )}
-
-                {conversation.messages.map((msg) => (
-                  <div
-                    key={msg.id}
-                    className={`flex items-start gap-3 ${
-                      msg.role === "user" ? "flex-row-reverse" : ""
-                    }`}
-                  >
-                    <div
-                      className={`flex h-7 w-7 shrink-0 items-center justify-center rounded-full ${
-                        msg.role === "user"
-                          ? "bg-primary/10"
-                          : "bg-violet-500/10"
-                      }`}
-                    >
-                      {msg.role === "user" ? (
-                        <User className="h-3.5 w-3.5 text-primary" />
-                      ) : (
-                        <Bot className="h-3.5 w-3.5 text-violet-600 dark:text-violet-400" />
-                      )}
-                    </div>
-                    <div
-                      className={`flex-1 pt-0.5 ${
-                        msg.role === "user" ? "text-right" : ""
-                      }`}
-                    >
-                      <div
-                        className={`inline-block rounded-lg px-3 py-2 text-sm ${
-                          msg.role === "user"
-                            ? "bg-primary text-primary-foreground"
-                            : "bg-muted"
-                        }`}
-                      >
-                        <div className="whitespace-pre-wrap">
-                          {msg.content}
-                        </div>
-                      </div>
-                    </div>
-                  </div>
-                ))}
-
-                {/* Streaming content */}
-                {conversation.isStreaming && conversation.streamingContent && (
-                  <div className="flex items-start gap-3">
-                    <div className="flex h-7 w-7 shrink-0 items-center justify-center rounded-full bg-violet-500/10">
-                      <Loader2 className="h-3.5 w-3.5 animate-spin text-violet-600 dark:text-violet-400" />
-                    </div>
-                    <div className="flex-1 pt-0.5">
-                      <div className="inline-block rounded-lg bg-muted px-3 py-2 text-sm whitespace-pre-wrap">
-                        {conversation.streamingContent}
-                      </div>
-                    </div>
-                  </div>
-                )}
-
-                {/* Streaming placeholder (waiting for first token) */}
-                {conversation.isStreaming && !conversation.streamingContent && (
-                  <div className="flex items-center gap-2 text-sm text-muted-foreground py-2">
-                    <Loader2 className="h-3 w-3 animate-spin" />
-                    Analyzing pipeline...
-                  </div>
-                )}
-
-                <div ref={messagesEndRef} />
-              </div>
-            </div>
-
-            {/* Error display */}
-            {conversation.error && (
-              <div className="flex items-start gap-2 rounded border border-destructive/50 bg-destructive/10 px-3 py-2 text-sm text-destructive mb-3">
-                <AlertTriangle className="h-4 w-4 mt-0.5 shrink-0" />
-                {conversation.error}
-              </div>
-            )}
-
-            {/* Input pinned at bottom */}
-            <div className="pt-3 border-t space-y-2">
-              <form onSubmit={handleSubmit} className="flex gap-2">
-                <textarea
-                  ref={textareaRef}
-                  value={prompt}
-                  onChange={(e) => setPrompt(e.target.value)}
-                  onKeyDown={handleKeyDown}
-                  placeholder="Why is this pipeline dropping events?"
-                  disabled={conversation.isStreaming}
-                  rows={1}
-                  className="flex-1 resize-none rounded-md border bg-background px-3 py-2 text-sm placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:opacity-50"
-                />
-                {conversation.isStreaming ? (
-                  <Button
-                    type="button"
-                    variant="outline"
-                    size="sm"
-                    onClick={conversation.cancelStreaming}
-                  >
-                    Cancel
-                  </Button>
-                ) : (
-                  <Button
-                    type="submit"
-                    size="sm"
-                    disabled={!prompt.trim()}
-                  >
-                    <Send className="h-3.5 w-3.5 mr-1.5" />
-                    Send
-                  </Button>
-                )}
-              </form>
-              {conversation.messages.length > 0 && (
-                <button
-                  type="button"
-                  onClick={conversation.startNewConversation}
-                  className="flex items-center gap-1.5 text-xs text-muted-foreground hover:text-foreground transition-colors"
-                >
-                  <MessageSquarePlus className="h-3 w-3" />
-                  New Conversation
-                </button>
-              )}
-            </div>
-          </div>
-        )}
-      </DialogContent>
-    </Dialog>
-  );
-}
diff --git a/src/components/flow/ai-pipeline-dialog.tsx b/src/components/flow/ai-pipeline-dialog.tsx
index f1ecfc0e..5863a508 100644
--- a/src/components/flow/ai-pipeline-dialog.tsx
+++ b/src/components/flow/ai-pipeline-dialog.tsx
@@ -2,7 +2,7 @@
 "use client";
 
 import { useState, useRef, useCallback, useMemo, useEffect } from "react";
-import { Loader2, RotateCcw, Sparkles, AlertTriangle, MessageSquarePlus, Undo2 } from "lucide-react";
+import { Loader2, RotateCcw, Sparkles, AlertTriangle, MessageSquarePlus, Undo2, Bot, User, Send } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { Label } from "@/components/ui/label";
 import {
@@ -19,6 +19,7 @@ import { useFlowStore } from "@/stores/flow-store";
 import { generateVectorYaml, importVectorConfig } from "@/lib/config-generator";
 import { toast } from "sonner";
 import { useAiConversation } from "@/hooks/use-ai-conversation";
+import { useAiDebugConversation } from "@/hooks/use-ai-debug-conversation";
 import { AiMessageBubble } from "./ai-message-bubble";
 import { validateSuggestions } from "@/lib/ai/suggestion-validator";
 import { detectOutdatedSuggestions } from "@/lib/ai/suggestion-validator";
@@ -29,6 +30,7 @@ interface AiPipelineDialogProps {
   onOpenChange: (open: boolean) => void;
   pipelineId: string;
   environmentName?: string;
+  currentYaml?: string;
 }
 
 export function AiPipelineDialog({
@@ -36,8 +38,9 @@ export function AiPipelineDialog({
   onOpenChange,
   pipelineId,
   environmentName,
+  currentYaml: currentYamlProp,
 }: AiPipelineDialogProps) {
-  const [mode, setMode] = useState<"generate" | "review">("generate");
+  const [mode, setMode] = useState<"generate" | "review" | "debug">("generate");
 
   // --- Generate tab state (unchanged from original) ---
   const [genPrompt, setGenPrompt] = useState("");
@@ -87,6 +90,12 @@ export function AiPipelineDialog({
     messagesEndRef.current?.scrollIntoView({ behavior: "smooth" });
   }, [conversation.messages, conversation.streamingContent]);
 
+  // --- Debug tab state ---
+  const debugConversation = useAiDebugConversation({ pipelineId, currentYaml: currentYamlProp });
+  const [debugPrompt, setDebugPrompt] = useState("");
+  const debugTextareaRef = useRef<HTMLTextAreaElement>(null);
+  const debugMessagesEndRef = useRef<HTMLDivElement>(null);
+
   // Auto-grow for generate textarea
   useEffect(() => {
     const ta = genTextareaRef.current;
@@ -332,25 +341,58 @@ export function AiPipelineDialog({
     [applySuggestions, conversation],
   );
 
+  // --- Debug tab handlers ---
+
+  useEffect(() => {
+    debugMessagesEndRef.current?.scrollIntoView({ behavior: "smooth" });
+  }, [debugConversation.messages, debugConversation.streamingContent]);
+
+  useEffect(() => {
+    const ta = debugTextareaRef.current;
+    if (!ta) return;
+    ta.style.height = "auto";
+    const maxHeight = 4 * 24;
+    ta.style.height = `${Math.min(ta.scrollHeight, maxHeight)}px`;
+  }, [debugPrompt]);
+
+  const handleDebugSubmit = useCallback(
+    (e?: React.FormEvent) => {
+      e?.preventDefault();
+      if (!debugPrompt.trim()) return;
+      const message = debugPrompt;
+      setDebugPrompt("");
+      debugConversation.sendMessage(message);
+    },
+    [debugPrompt, debugConversation],
+  );
+
+  const handleDebugKeyDown = (e: React.KeyboardEvent) => {
+    if (e.key === "Enter" && !e.shiftKey) {
+      e.preventDefault();
+      handleDebugSubmit();
+    }
+  };
+
   return (
     <Dialog open={open} onOpenChange={onOpenChange}>
       <DialogContent className="sm:max-w-2xl max-h-[85vh] flex flex-col min-h-0 overflow-hidden">
         <DialogHeader>
           <DialogTitle className="flex items-center gap-2">
             <Sparkles className="h-4 w-4" />
-            AI Pipeline Builder
+            AI Assistant
           </DialogTitle>
           <DialogDescription>
-            Describe what you want to build, or ask for a review of your current pipeline.
+            Generate pipeline components, review your configuration, or debug issues.
           </DialogDescription>
         </DialogHeader>
 
-        <Tabs value={mode} onValueChange={(v) => setMode(v as "generate" | "review")} className="flex flex-col flex-1 min-h-0 overflow-hidden">
-          <TabsList className="grid w-full grid-cols-2">
+        <Tabs value={mode} onValueChange={(v) => setMode(v as "generate" | "review" | "debug")} className="flex flex-col flex-1 min-h-0 overflow-hidden">
+          <TabsList className="grid w-full grid-cols-3">
             <TabsTrigger value="generate">Generate</TabsTrigger>
             <TabsTrigger value="review" disabled={nodes.length === 0}>
               Review
             </TabsTrigger>
+            <TabsTrigger value="debug">Debug</TabsTrigger>
           </TabsList>
 
           {/* ---- Generate tab (unchanged) ---- */}
@@ -526,6 +568,143 @@ export function AiPipelineDialog({
               </>
             )}
           </TabsContent>
+
+          {/* ---- Debug tab (chat with AI about errors) ---- */}
+          <TabsContent value="debug" className="flex flex-col flex-1 mt-4 min-h-0 overflow-hidden">
+            {debugConversation.isLoading ? (
+              <div className="flex items-center justify-center py-8">
+                <Loader2 className="h-5 w-5 animate-spin text-muted-foreground" />
+              </div>
+            ) : (
+              <div className="flex flex-col flex-1 min-h-0 overflow-hidden">
+                <div className="flex-1 min-h-0 overflow-y-auto pr-2">
+                  <div className="space-y-4 pb-4">
+                    {debugConversation.messages.length === 0 &&
+                      !debugConversation.isStreaming && (
+                        <p className="text-sm text-muted-foreground text-center py-8">
+                          Ask the AI to help debug your pipeline — it has access to
+                          your configuration, metrics, SLI health, and recent error
+                          logs.
+                        </p>
+                      )}
+
+                    {debugConversation.messages.map((msg) => (
+                      <div
+                        key={msg.id}
+                        className={`flex items-start gap-3 ${
+                          msg.role === "user" ? "flex-row-reverse" : ""
+                        }`}
+                      >
+                        <div
+                          className={`flex h-7 w-7 shrink-0 items-center justify-center rounded-full ${
+                            msg.role === "user"
+                              ? "bg-primary/10"
+                              : "bg-violet-500/10"
+                          }`}
+                        >
+                          {msg.role === "user" ? (
+                            <User className="h-3.5 w-3.5 text-primary" />
+                          ) : (
+                            <Bot className="h-3.5 w-3.5 text-violet-600 dark:text-violet-400" />
+                          )}
+                        </div>
+                        <div
+                          className={`flex-1 pt-0.5 ${
+                            msg.role === "user" ? "text-right" : ""
+                          }`}
+                        >
+                          <div
+                            className={`inline-block rounded-lg px-3 py-2 text-sm ${
+                              msg.role === "user"
+                                ? "bg-primary text-primary-foreground"
+                                : "bg-muted"
+                            }`}
+                          >
+                            <div className="whitespace-pre-wrap">
+                              {msg.content}
+                            </div>
+                          </div>
+                        </div>
+                      </div>
+                    ))}
+
+                    {debugConversation.isStreaming && debugConversation.streamingContent && (
+                      <div className="flex items-start gap-3">
+                        <div className="flex h-7 w-7 shrink-0 items-center justify-center rounded-full bg-violet-500/10">
+                          <Loader2 className="h-3.5 w-3.5 animate-spin text-violet-600 dark:text-violet-400" />
+                        </div>
+                        <div className="flex-1 pt-0.5">
+                          <div className="inline-block rounded-lg bg-muted px-3 py-2 text-sm whitespace-pre-wrap">
+                            {debugConversation.streamingContent}
+                          </div>
+                        </div>
+                      </div>
+                    )}
+
+                    {debugConversation.isStreaming && !debugConversation.streamingContent && (
+                      <div className="flex items-center gap-2 text-sm text-muted-foreground py-2">
+                        <Loader2 className="h-3 w-3 animate-spin" />
+                        Analyzing pipeline...
+                      </div>
+                    )}
+
+                    <div ref={debugMessagesEndRef} />
+                  </div>
+                </div>
+
+                {debugConversation.error && (
+                  <div className="flex items-start gap-2 rounded border border-destructive/50 bg-destructive/10 px-3 py-2 text-sm text-destructive mb-3">
+                    <AlertTriangle className="h-4 w-4 mt-0.5 shrink-0" />
+                    {debugConversation.error}
+                  </div>
+                )}
+
+                <div className="pt-3 border-t space-y-2">
+                  <form onSubmit={handleDebugSubmit} className="flex gap-2">
+                    <textarea
+                      ref={debugTextareaRef}
+                      value={debugPrompt}
+                      onChange={(e) => setDebugPrompt(e.target.value)}
+                      onKeyDown={handleDebugKeyDown}
+                      placeholder="Why is this pipeline dropping events?"
+                      disabled={debugConversation.isStreaming}
+                      rows={1}
+                      className="flex-1 resize-none rounded-md border bg-background px-3 py-2 text-sm placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:opacity-50"
+                    />
+                    {debugConversation.isStreaming ? (
+                      <Button
+                        type="button"
+                        variant="outline"
+                        size="sm"
+                        onClick={debugConversation.cancelStreaming}
+                      >
+                        Cancel
+                      </Button>
+                    ) : (
+                      <Button
+                        type="submit"
+                        size="sm"
+                        disabled={!debugPrompt.trim()}
+                      >
+                        <Send className="h-3.5 w-3.5 mr-1.5" />
+                        Send
+                      </Button>
+                    )}
+                  </form>
+                  {debugConversation.messages.length > 0 && (
+                    <button
+                      type="button"
+                      onClick={debugConversation.startNewConversation}
+                      className="flex items-center gap-1.5 text-xs text-muted-foreground hover:text-foreground transition-colors"
+                    >
+                      <MessageSquarePlus className="h-3 w-3" />
+                      New Conversation
+                    </button>
+                  )}
+                </div>
+              </div>
+            )}
+          </TabsContent>
         </Tabs>
       </DialogContent>
     </Dialog>
diff --git a/src/components/flow/flow-toolbar.tsx b/src/components/flow/flow-toolbar.tsx
index aecbdc01..b4a011f1 100644
--- a/src/components/flow/flow-toolbar.tsx
+++ b/src/components/flow/flow-toolbar.tsx
@@ -22,7 +22,6 @@ import {
   Clock,
   X,
   Sparkles,
-  Bug,
 } from "lucide-react";
 import { toast } from "sonner";
 import { Button } from "@/components/ui/button";
@@ -76,7 +75,6 @@ interface FlowToolbarProps {
   onDiscardChanges?: () => void;
   aiEnabled?: boolean;
   onAiOpen?: () => void;
-  onDebugOpen?: () => void;
   deployedVersionNumber?: number | null;
 }
 
@@ -111,7 +109,6 @@ export function FlowToolbar({
   onDiscardChanges,
   aiEnabled,
   onAiOpen,
-  onDebugOpen,
   deployedVersionNumber,
 }: FlowToolbarProps) {
   const globalConfig = useFlowStore((s) => s.globalConfig);
@@ -341,36 +338,20 @@ export function FlowToolbar({
         </Tooltip>
 
         {aiEnabled && (
-          <>
-            <Tooltip>
-              <TooltipTrigger asChild>
-                <Button
-                  variant="ghost"
-                  size="sm"
-                  onClick={onAiOpen}
-                  className="h-7 w-7 p-0"
-                  aria-label="AI pipeline builder"
-                >
-                  <Sparkles className="h-4 w-4" />
-                </Button>
-              </TooltipTrigger>
-              <TooltipContent>AI pipeline builder</TooltipContent>
-            </Tooltip>
-            <Tooltip>
-              <TooltipTrigger asChild>
-                <Button
-                  variant={processStatus === "CRASHED" ? "destructive" : "ghost"}
-                  size="sm"
-                  onClick={onDebugOpen}
-                  className="h-7 w-7 p-0"
-                  aria-label="Debug with AI"
-                >
-                  <Bug className="h-4 w-4" />
-                </Button>
-              </TooltipTrigger>
-              <TooltipContent>Debug with AI</TooltipContent>
-            </Tooltip>
-          </>
+          <Tooltip>
+            <TooltipTrigger asChild>
+              <Button
+                variant="ghost"
+                size="sm"
+                onClick={onAiOpen}
+                className="h-7 w-7 p-0"
+                aria-label="AI assistant"
+              >
+                <Sparkles className="h-4 w-4" />
+              </Button>
+            </TooltipTrigger>
+            <TooltipContent>AI assistant</TooltipContent>
+          </Tooltip>
         )}
 
         {pipelineId && (
diff --git a/src/server/routers/pipeline.ts b/src/server/routers/pipeline.ts
index 2b05a640..27a28e96 100644
--- a/src/server/routers/pipeline.ts
+++ b/src/server/routers/pipeline.ts
@@ -90,7 +90,7 @@ export const pipelineRouter = router({
           edges: true,
           environment: { select: { teamId: true, gitOpsMode: true, name: true } },
           nodeStatuses: {
-            select: { status: true },
+            select: { status: true, uptimeSeconds: true },
           },
         },
       });
diff --git a/src/server/services/pipeline-graph.ts b/src/server/services/pipeline-graph.ts
index 3a283604..a47cec30 100644
--- a/src/server/services/pipeline-graph.ts
+++ b/src/server/services/pipeline-graph.ts
@@ -540,6 +540,7 @@ export async function listPipelinesForEnvironment(environmentId: string) {
           eventsDiscarded: true,
           bytesIn: true,
           bytesOut: true,
+          uptimeSeconds: true,
         },
       },
       nodes: {
@@ -625,6 +626,12 @@ export async function listPipelinesForEnvironment(environmentId: string) {
         .map((n) => n.sharedComponent!.name),
       upstreamDepCount: p._count.upstreamDeps,
       downstreamDepCount: p._count.downstreamDeps,
+      minUptimeSeconds: (() => {
+        const runningUptimes = p.nodeStatuses
+          .filter((s) => s.status === "RUNNING" && s.uptimeSeconds != null)
+          .map((s) => s.uptimeSeconds!);
+        return runningUptimes.length > 0 ? Math.min(...runningUptimes) : null;
+      })(),
     };
   }));
 }
diff --git a/src/trpc/client.tsx b/src/trpc/client.tsx
index 91df07bb..e5fc1979 100644
--- a/src/trpc/client.tsx
+++ b/src/trpc/client.tsx
@@ -23,7 +23,7 @@ export function TRPCClientProvider({
     () =>
       new QueryClient({
         defaultOptions: {
-          queries: { staleTime: 5 * 1000 },
+          queries: { staleTime: 5 * 1000, refetchOnWindowFocus: false },
         },
       })
   );