refactor: redesign project settings with sidebar navigation

Replace flat scrolling layout with sidebar + content panel matching the global
SettingsPanel pattern. Sections: Overview, Instructions (with expandable
previews), Custom Agents (with enable/disable), Prompt Files, MCP Servers,
Danger Zone. Add count badges, pending indicators, project name in header,
section-level rescan buttons, and contextual empty states.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/renderer/components/ProjectSettingsPanel.tsx

@@ -1,11 +1,26 @@
-import { useCallback, useState } from 'react';
-import { ChevronLeft, FileCode2, FileText, FolderOpen, GitBranch, RefreshCw, Server, Sparkles, Trash2, AlertTriangle, Circle } from 'lucide-react';
+import { useCallback, useMemo, useState, type ReactNode } from 'react';
+import { ChevronDown, ChevronLeft, FileCode2, FileText, FolderOpen, GitBranch, RefreshCw, Server, Sparkles, Trash2, AlertTriangle, Circle } from 'lucide-react';
 
 import { ToggleSwitch } from '@renderer/components/ui';
 import type { ProjectRecord, ProjectGitContext } from '@shared/domain/project';
 import type { DiscoveredMcpServer } from '@shared/domain/discoveredTooling';
 import { listAcceptedDiscoveredMcpServers, listPendingDiscoveredMcpServers } from '@shared/domain/discoveredTooling';
-import type { ProjectAgentProfile, ProjectCustomizationState, ProjectInstructionFile, ProjectPromptFile } from '@shared/domain/projectCustomization';
+import type { ProjectAgentProfile, ProjectInstructionFile, ProjectPromptFile } from '@shared/domain/projectCustomization';
+
+/* ── Types ────────────────────────────────────────────────── */
+
+type ProjectSettingsSection = 'overview' | 'instructions' | 'agents' | 'prompts' | 'mcp-servers' | 'danger-zone';
+
+interface NavItem {
+  id: ProjectSettingsSection;
+  label: string;
+  icon: ReactNode;
+}
+
+interface NavGroup {
+  label: string;
+  items: NavItem[];
+}
 
 interface ProjectSettingsPanelProps {
   project: ProjectRecord;
@@ -17,6 +32,8 @@ interface ProjectSettingsPanelProps {
   onRemoveProject: () => void;
 }
 
+/* ── Main component ───────────────────────────────────────── */
+
 export function ProjectSettingsPanel({
   project,
   onClose,
@@ -26,16 +43,15 @@ export function ProjectSettingsPanel({
   onSetAgentProfileEnabled,
   onRemoveProject,
 }: ProjectSettingsPanelProps) {
+  const [activeSection, setActiveSection] = useState<ProjectSettingsSection>('overview');
   const [confirmingRemove, setConfirmingRemove] = useState(false);
 
-  const acceptedServers = listAcceptedDiscoveredMcpServers(project.discoveredTooling);
-  const pendingServers = listPendingDiscoveredMcpServers(project.discoveredTooling);
-  const hasDiscoveredServers = acceptedServers.length + pendingServers.length > 0;
-  const customization = project.customization;
-  const hasCustomization =
-    (customization?.instructions?.length ?? 0) > 0 ||
-    (customization?.agentProfiles?.length ?? 0) > 0 ||
-    (customization?.promptFiles?.length ?? 0) > 0;
+  const acceptedServers = useMemo(() => listAcceptedDiscoveredMcpServers(project.discoveredTooling), [project.discoveredTooling]);
+  const pendingServers = useMemo(() => listPendingDiscoveredMcpServers(project.discoveredTooling), [project.discoveredTooling]);
+  const instructions = project.customization?.instructions ?? [];
+  const agentProfiles = project.customization?.agentProfiles ?? [];
+  const promptFiles = project.customization?.promptFiles ?? [];
+  const enabledAgentCount = agentProfiles.filter((a) => a.enabled).length;
 
   const handleRemove = useCallback(() => {
     if (!confirmingRemove) {
@@ -45,6 +61,55 @@ export function ProjectSettingsPanel({
     onRemoveProject();
   }, [confirmingRemove, onRemoveProject]);
 
+  const navGroups: NavGroup[] = [
+    {
+      label: 'Project',
+      items: [
+        { id: 'overview', label: 'Overview', icon: <FolderOpen className="size-3.5" /> },
+      ],
+    },
+    {
+      label: 'Copilot',
+      items: [
+        { id: 'instructions', label: 'Instructions', icon: <FileCode2 className="size-3.5" /> },
+        { id: 'agents', label: 'Custom Agents', icon: <Sparkles className="size-3.5" /> },
+        { id: 'prompts', label: 'Prompt Files', icon: <FileText className="size-3.5" /> },
+      ],
+    },
+    {
+      label: 'Tooling',
+      items: [
+        { id: 'mcp-servers', label: 'MCP Servers', icon: <Server className="size-3.5" /> },
+      ],
+    },
+  ];
+
+  function sectionBadge(section: ProjectSettingsSection): ReactNode {
+    switch (section) {
+      case 'instructions':
+        return instructions.length > 0
+          ? <CountBadge count={instructions.length} />
+          : null;
+      case 'agents':
+        return agentProfiles.length > 0
+          ? <CountBadge count={enabledAgentCount} total={agentProfiles.length} />
+          : null;
+      case 'prompts':
+        return promptFiles.length > 0
+          ? <CountBadge count={promptFiles.length} />
+          : null;
+      case 'mcp-servers': {
+        if (pendingServers.length > 0) {
+          return <PendingBadge count={pendingServers.length} />;
+        }
+        const totalServers = acceptedServers.length + pendingServers.length;
+        return totalServers > 0 ? <CountBadge count={totalServers} /> : null;
+      }
+      default:
+        return null;
+    }
+  }
+
   return (
     <div className="fixed inset-0 z-50 flex flex-col bg-[var(--color-surface-0)]">
       {/* Header */}
@@ -56,105 +121,114 @@ export function ProjectSettingsPanel({
         >
           <ChevronLeft className="size-4" />
         </button>
-        <h2 className="text-[13px] font-semibold text-zinc-100">Project Settings</h2>
+        <h2 className="text-[13px] font-semibold text-zinc-100">
+          Project Settings
+          <span className="ml-2 font-normal text-zinc-500">·</span>
+          <span className="ml-2 font-normal text-zinc-400">{project.name}</span>
+        </h2>
       </div>
 
-      {/* Content */}
-      <div className="flex-1 overflow-y-auto">
-        <div className="mx-auto max-w-2xl px-8 py-6 space-y-8">
-          {/* Project info */}
-          <ProjectInfoSection project={project} />
+      {/* Sidebar + Content */}
+      <div className="flex min-h-0 flex-1">
+        {/* Navigation sidebar */}
+        <nav className="w-52 shrink-0 border-r border-[var(--color-border)] bg-[var(--color-surface-1)] p-3">
+          <div className="space-y-4">
+            {navGroups.map((group) => (
+              <div key={group.label}>
+                <span className="mb-1 block px-3 text-[10px] font-semibold uppercase tracking-wider text-zinc-600">
+                  {group.label}
+                </span>
+                <div className="space-y-0.5">
+                  {group.items.map((item) => {
+                    const isActive = item.id === activeSection;
+                    const badge = sectionBadge(item.id);
+                    return (
+                      <button
+                        className={`flex w-full items-center gap-2.5 rounded-lg px-3 py-2 text-left text-[13px] transition ${
+                          isActive
+                            ? 'bg-zinc-800 font-medium text-zinc-100'
+                            : 'text-zinc-400 hover:bg-zinc-800/50 hover:text-zinc-300'
+                        }`}
+                        key={item.id}
+                        onClick={() => {
+                          setActiveSection(item.id);
+                          setConfirmingRemove(false);
+                        }}
+                        type="button"
+                      >
+                        <span className={isActive ? 'text-zinc-300' : 'text-zinc-500'}>{item.icon}</span>
+                        <span className="flex-1 truncate">{item.label}</span>
+                        {badge}
+                      </button>
+                    );
+                  })}
+                </div>
+              </div>
+            ))}
 
-          {/* Discovered MCP Servers */}
-          {hasDiscoveredServers ? (
-            <DiscoveredServersSection
-              accepted={acceptedServers}
-              onRescan={onRescanConfigs}
-              onResolve={onResolveDiscoveredTooling}
-              pending={pendingServers}
-            />
-          ) : (
-            <div>
-              <SectionHeader
-                description="MCP servers discovered from project config files (.vscode/mcp.json, .mcp.json, .copilot/mcp.json)."
-                title="Discovered MCP Servers"
-              >
+            {/* Danger zone at the bottom */}
+            <div className="border-t border-zinc-800 pt-3">
+              <div className="space-y-0.5">
                 <button
-                  className="flex items-center gap-1.5 rounded-lg bg-zinc-800 px-3 py-1.5 text-[13px] font-medium text-zinc-200 transition hover:bg-zinc-700"
-                  onClick={onRescanConfigs}
-                  title="Scan project config files for MCP servers"
+                  className={`flex w-full items-center gap-2.5 rounded-lg px-3 py-2 text-left text-[13px] transition ${
+                    activeSection === 'danger-zone'
+                      ? 'bg-zinc-800 font-medium text-red-400'
+                      : 'text-zinc-500 hover:bg-zinc-800/50 hover:text-red-400'
+                  }`}
+                  onClick={() => {
+                    setActiveSection('danger-zone');
+                    setConfirmingRemove(false);
+                  }}
                   type="button"
                 >
-                  <RefreshCw className="size-3.5" />
-                  Scan
+                  <Trash2 className="size-3.5" />
+                  <span className="flex-1 truncate">Danger Zone</span>
                 </button>
-              </SectionHeader>
-              <div className="rounded-xl border border-dashed border-zinc-800 bg-zinc-900/20 px-5 py-8 text-center text-[12px] leading-relaxed text-zinc-500">
-                No MCP servers discovered in this project yet. Click Scan to check project config files.
               </div>
             </div>
-          )}
+          </div>
+        </nav>
 
-          {/* Copilot Customization */}
-          {hasCustomization ? (
-            <CustomizationSection
-              customization={customization!}
-              onRescan={onRescanCustomization}
-              onSetAgentProfileEnabled={onSetAgentProfileEnabled}
-            />
-          ) : (
-            <div>
-              <SectionHeader
-                description="Instructions, custom agents, and prompt files discovered from .github/ and AGENTS.md."
-                title="Copilot Customization"
-              >
-                <button
-                  className="flex items-center gap-1.5 rounded-lg bg-zinc-800 px-3 py-1.5 text-[13px] font-medium text-zinc-200 transition hover:bg-zinc-700"
-                  onClick={onRescanCustomization}
-                  title="Scan for Copilot customization files"
-                  type="button"
-                >
-                  <RefreshCw className="size-3.5" />
-                  Scan
-                </button>
-              </SectionHeader>
-              <div className="rounded-xl border border-dashed border-zinc-800 bg-zinc-900/20 px-5 py-8 text-center text-[12px] leading-relaxed text-zinc-500">
-                No customization files found. Add <code className="text-zinc-400">.github/copilot-instructions.md</code>, <code className="text-zinc-400">AGENTS.md</code>, or files
-                in <code className="text-zinc-400">.github/agents/</code> and <code className="text-zinc-400">.github/prompts/</code> to customize Copilot behavior.
-              </div>
-            </div>
-          )}
-
-          {/* Remove project */}
-          <div className="border-t border-zinc-800 pt-6">
-            <h3 className="text-[13px] font-semibold text-zinc-200">Danger zone</h3>
-            <p className="mt-1 text-[12px] text-zinc-500">
-              Removing a project deletes all its sessions and discovered tooling from Aryx.
-              Your project files on disk are not affected.
-            </p>
-            <div className="mt-4 flex items-center gap-3">
-              <button
-                className={`flex items-center gap-1.5 rounded-lg px-3 py-1.5 text-[13px] font-medium transition ${
-                  confirmingRemove
-                    ? 'bg-red-600 text-white hover:bg-red-500'
-                    : 'bg-red-500/10 text-red-400 hover:bg-red-500/20'
-                }`}
-                onClick={handleRemove}
-                type="button"
-              >
-                <Trash2 className="size-3.5" />
-                {confirmingRemove ? 'Confirm removal' : 'Remove project'}
-              </button>
-              {confirmingRemove && (
-                <button
-                  className="rounded-lg px-3 py-1.5 text-[13px] font-medium text-zinc-400 transition hover:bg-zinc-800 hover:text-zinc-200"
-                  onClick={() => setConfirmingRemove(false)}
-                  type="button"
-                >
-                  Cancel
-                </button>
-              )}
-            </div>
+        {/* Content panel */}
+        <div className="flex-1 overflow-y-auto">
+          <div className="mx-auto max-w-2xl px-8 py-6">
+            {activeSection === 'overview' && (
+              <OverviewContent project={project} />
+            )}
+            {activeSection === 'instructions' && (
+              <InstructionsContent
+                instructions={instructions}
+                onRescan={onRescanCustomization}
+              />
+            )}
+            {activeSection === 'agents' && (
+              <AgentsContent
+                agents={agentProfiles}
+                onRescan={onRescanCustomization}
+                onSetEnabled={onSetAgentProfileEnabled}
+              />
+            )}
+            {activeSection === 'prompts' && (
+              <PromptsContent
+                onRescan={onRescanCustomization}
+                promptFiles={promptFiles}
+              />
+            )}
+            {activeSection === 'mcp-servers' && (
+              <McpServersContent
+                accepted={acceptedServers}
+                onRescan={onRescanConfigs}
+                onResolve={onResolveDiscoveredTooling}
+                pending={pendingServers}
+              />
+            )}
+            {activeSection === 'danger-zone' && (
+              <DangerZoneContent
+                confirmingRemove={confirmingRemove}
+                onCancelRemove={() => setConfirmingRemove(false)}
+                onRemove={handleRemove}
+              />
+            )}
           </div>
         </div>
       </div>
@@ -162,14 +236,32 @@ export function ProjectSettingsPanel({
   );
 }
 
-/* ── Project info ─────────────────────────────────────────── */
+/* ── Nav badges ───────────────────────────────────────────── */
 
-function ProjectInfoSection({ project }: { project: ProjectRecord }) {
+function CountBadge({ count, total }: { count: number; total?: number }) {
+  return (
+    <span className="rounded-full bg-zinc-800 px-1.5 py-0.5 text-[10px] font-medium text-zinc-500">
+      {total !== undefined ? `${count}/${total}` : count}
+    </span>
+  );
+}
+
+function PendingBadge({ count }: { count: number }) {
+  return (
+    <span className="rounded-full bg-amber-500/10 px-1.5 py-0.5 text-[10px] font-medium text-amber-400">
+      {count} new
+    </span>
+  );
+}
+
+/* ── Overview ─────────────────────────────────────────────── */
+
+function OverviewContent({ project }: { project: ProjectRecord }) {
   return (
     <div>
       <SectionHeader
         description="Project details and git status."
-        title="Project Info"
+        title="Overview"
       />
       <div className="rounded-xl border border-zinc-800 bg-zinc-900/40 px-5 py-4 space-y-3">
         <div className="flex items-center gap-3">
@@ -231,9 +323,240 @@ function ProjectGitInfo({ git }: { git: ProjectGitContext }) {
   );
 }
 
-/* ── Discovered MCP servers ──────────────────────────────── */
+/* ── Instructions ─────────────────────────────────────────── */
 
-function DiscoveredServersSection({
+function InstructionsContent({
+  instructions,
+  onRescan,
+}: {
+  instructions: ProjectInstructionFile[];
+  onRescan: () => void;
+}) {
+  return (
+    <div>
+      <SectionHeader
+        description="Repository instructions automatically included in every session. Discovered from .github/copilot-instructions.md and AGENTS.md."
+        title="Instructions"
+      >
+        <RescanButton onClick={onRescan} />
+      </SectionHeader>
+
+      {instructions.length === 0 ? (
+        <EmptyState>
+          No instruction files found. Add a <code className="text-zinc-400">.github/copilot-instructions.md</code> or <code className="text-zinc-400">AGENTS.md</code> file to your project root.
+        </EmptyState>
+      ) : (
+        <div className="space-y-3">
+          {instructions.map((instruction) => (
+            <InstructionCard key={instruction.id} instruction={instruction} />
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}
+
+function InstructionCard({ instruction }: { instruction: ProjectInstructionFile }) {
+  const [expanded, setExpanded] = useState(false);
+  const isLong = instruction.content.length > 300;
+
+  return (
+    <div className="rounded-xl border border-zinc-800 bg-zinc-900/40">
+      <button
+        className="flex w-full items-center gap-3 px-5 py-3.5 text-left transition hover:bg-zinc-900/60"
+        onClick={() => setExpanded(!expanded)}
+        type="button"
+      >
+        <FileCode2 className="size-4 shrink-0 text-indigo-400" />
+        <span className="flex-1 text-[13px] font-medium text-zinc-200">{instruction.sourcePath}</span>
+        <ChevronDown
+          className={`size-3.5 shrink-0 text-zinc-500 transition-transform ${expanded ? 'rotate-180' : ''}`}
+        />
+      </button>
+      {expanded && (
+        <div className="border-t border-zinc-800 px-5 py-4">
+          <pre className="whitespace-pre-wrap text-[11px] leading-relaxed text-zinc-400">
+            {instruction.content}
+          </pre>
+        </div>
+      )}
+      {!expanded && (
+        <div className="px-5 pb-3">
+          <p className={`text-[11px] leading-relaxed text-zinc-500 ${isLong ? 'line-clamp-2' : ''}`}>
+            {instruction.content}
+          </p>
+        </div>
+      )}
+    </div>
+  );
+}
+
+/* ── Custom Agents ────────────────────────────────────────── */
+
+function AgentsContent({
+  agents,
+  onRescan,
+  onSetEnabled,
+}: {
+  agents: ProjectAgentProfile[];
+  onRescan: () => void;
+  onSetEnabled: (agentProfileId: string, enabled: boolean) => void;
+}) {
+  const enabledCount = agents.filter((a) => a.enabled).length;
+
+  return (
+    <div>
+      <SectionHeader
+        description="Custom agent profiles discovered from .github/agents/*.agent.md. Enable or disable individual agents."
+        title="Custom Agents"
+      >
+        <RescanButton onClick={onRescan} />
+      </SectionHeader>
+
+      {agents.length === 0 ? (
+        <EmptyState>
+          No custom agents found. Add <code className="text-zinc-400">.agent.md</code> files to <code className="text-zinc-400">.github/agents/</code> in your project.
+        </EmptyState>
+      ) : (
+        <>
+          {agents.length > 1 && (
+            <div className="mb-3 text-[11px] text-zinc-500">
+              {enabledCount} of {agents.length} agent{agents.length === 1 ? '' : 's'} enabled
+            </div>
+          )}
+          <div className="space-y-2">
+            {agents.map((agent) => (
+              <AgentCard
+                key={agent.id}
+                agent={agent}
+                onToggle={() => onSetEnabled(agent.id, !agent.enabled)}
+              />
+            ))}
+          </div>
+        </>
+      )}
+    </div>
+  );
+}
+
+function AgentCard({
+  agent,
+  onToggle,
+}: {
+  agent: ProjectAgentProfile;
+  onToggle: () => void;
+}) {
+  return (
+    <div className={`rounded-xl border px-5 py-4 transition ${
+      agent.enabled
+        ? 'border-zinc-800 bg-zinc-900/40'
+        : 'border-zinc-800/50 bg-zinc-900/20 opacity-60'
+    }`}>
+      <div className="flex items-start gap-3">
+        <Sparkles className={`mt-0.5 size-4 shrink-0 ${agent.enabled ? 'text-amber-400' : 'text-zinc-600'}`} />
+        <div className="min-w-0 flex-1">
+          <div className="flex items-center gap-2">
+            <span className="text-[13px] font-medium text-zinc-200">
+              {agent.displayName ?? agent.name}
+            </span>
+            {agent.tools && agent.tools.length > 0 && (
+              <span className="rounded-full bg-zinc-800 px-2 py-0.5 text-[10px] font-medium text-zinc-500">
+                {agent.tools.length} tool{agent.tools.length === 1 ? '' : 's'}
+              </span>
+            )}
+          </div>
+          {agent.description && (
+            <p className="mt-1 text-[12px] leading-relaxed text-zinc-500">{agent.description}</p>
+          )}
+          <p className="mt-1 text-[11px] text-zinc-600">{agent.sourcePath}</p>
+        </div>
+        <button
+          aria-label={agent.enabled ? `Disable ${agent.name}` : `Enable ${agent.name}`}
+          aria-pressed={agent.enabled}
+          className="mt-0.5 shrink-0"
+          onClick={onToggle}
+          type="button"
+        >
+          <ToggleSwitch enabled={agent.enabled} size="sm" />
+        </button>
+      </div>
+    </div>
+  );
+}
+
+/* ── Prompt Files ─────────────────────────────────────────── */
+
+function PromptsContent({
+  promptFiles,
+  onRescan,
+}: {
+  promptFiles: ProjectPromptFile[];
+  onRescan: () => void;
+}) {
+  return (
+    <div>
+      <SectionHeader
+        description="Reusable prompt templates discovered from .github/prompts/*.prompt.md. Use them from the Prompts pill in the chat input."
+        title="Prompt Files"
+      >
+        <RescanButton onClick={onRescan} />
+      </SectionHeader>
+
+      {promptFiles.length === 0 ? (
+        <EmptyState>
+          No prompt files found. Add <code className="text-zinc-400">.prompt.md</code> files to <code className="text-zinc-400">.github/prompts/</code> in your project.
+        </EmptyState>
+      ) : (
+        <div className="space-y-2">
+          {promptFiles.map((prompt) => (
+            <PromptCard key={prompt.id} prompt={prompt} />
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}
+
+function PromptCard({ prompt }: { prompt: ProjectPromptFile }) {
+  return (
+    <div className="rounded-xl border border-zinc-800 bg-zinc-900/40 px-5 py-4">
+      <div className="flex items-start gap-3">
+        <FileText className="mt-0.5 size-4 shrink-0 text-emerald-400" />
+        <div className="min-w-0 flex-1">
+          <div className="flex items-center gap-2">
+            <span className="text-[13px] font-medium text-zinc-200">{prompt.name}</span>
+            {prompt.variables.length > 0 && (
+              <span className="rounded-full bg-zinc-800 px-2 py-0.5 text-[10px] font-medium text-zinc-500">
+                {prompt.variables.length} variable{prompt.variables.length === 1 ? '' : 's'}
+              </span>
+            )}
+          </div>
+          {prompt.description && (
+            <p className="mt-1 text-[12px] leading-relaxed text-zinc-500">{prompt.description}</p>
+          )}
+          {prompt.variables.length > 0 && (
+            <div className="mt-2 flex flex-wrap gap-1.5">
+              {prompt.variables.map((v) => (
+                <span
+                  key={v.name}
+                  className="rounded-md bg-zinc-800 px-2 py-0.5 text-[10px] font-medium text-zinc-400"
+                  title={v.placeholder}
+                >
+                  {v.name}
+                </span>
+              ))}
+            </div>
+          )}
+          <p className="mt-1.5 text-[11px] text-zinc-600">{prompt.sourcePath}</p>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+/* ── MCP Servers ──────────────────────────────────────────── */
+
+function McpServersContent({
   accepted,
   pending,
   onRescan,
@@ -244,60 +567,62 @@ function DiscoveredServersSection({
   onRescan: () => void;
   onResolve: (serverIds: string[], resolution: 'accept' | 'dismiss') => void;
 }) {
+  const hasServers = accepted.length + pending.length > 0;
+
   return (
     <div>
       <SectionHeader
         description="MCP servers discovered from project config files (.vscode/mcp.json, .mcp.json, .copilot/mcp.json)."
-        title="Discovered MCP Servers"
+        title="MCP Servers"
       >
-        <button
-          className="flex items-center gap-1.5 rounded-lg bg-zinc-800 px-3 py-1.5 text-[13px] font-medium text-zinc-200 transition hover:bg-zinc-700"
-          onClick={onRescan}
-          title="Re-scan project config files"
-          type="button"
-        >
-          <RefreshCw className="size-3.5" />
-          Re-scan
-        </button>
+        <RescanButton label={hasServers ? 'Re-scan' : 'Scan'} onClick={onRescan} />
       </SectionHeader>
 
-      <div className="space-y-1">
-        {accepted.map((server) => (
-          <DiscoveredServerRow
-            key={server.id}
-            onDismiss={() => onResolve([server.id], 'dismiss')}
-            server={server}
-            status="accepted"
-          />
-        ))}
-        {pending.map((server) => (
-          <DiscoveredServerRow
-            key={server.id}
-            onAccept={() => onResolve([server.id], 'accept')}
-            onDismiss={() => onResolve([server.id], 'dismiss')}
-            server={server}
-            status="pending"
-          />
-        ))}
-      </div>
+      {!hasServers ? (
+        <EmptyState>
+          No MCP servers discovered. Click Scan to check project config files.
+        </EmptyState>
+      ) : (
+        <>
+          <div className="space-y-1">
+            {accepted.map((server) => (
+              <DiscoveredServerRow
+                key={server.id}
+                onDismiss={() => onResolve([server.id], 'dismiss')}
+                server={server}
+                status="accepted"
+              />
+            ))}
+            {pending.map((server) => (
+              <DiscoveredServerRow
+                key={server.id}
+                onAccept={() => onResolve([server.id], 'accept')}
+                onDismiss={() => onResolve([server.id], 'dismiss')}
+                server={server}
+                status="pending"
+              />
+            ))}
+          </div>
 
-      {pending.length > 1 && (
-        <div className="mt-3 flex items-center gap-2">
-          <button
-            className="rounded-lg bg-emerald-500/10 px-3 py-1.5 text-[12px] font-medium text-emerald-400 transition hover:bg-emerald-500/20"
-            onClick={() => onResolve(pending.map((s) => s.id), 'accept')}
-            type="button"
-          >
-            Accept all ({pending.length})
-          </button>
-          <button
-            className="rounded-lg px-3 py-1.5 text-[12px] font-medium text-zinc-500 transition hover:bg-zinc-800 hover:text-zinc-300"
-            onClick={() => onResolve(pending.map((s) => s.id), 'dismiss')}
-            type="button"
-          >
-            Dismiss all
-          </button>
-        </div>
+          {pending.length > 1 && (
+            <div className="mt-3 flex items-center gap-2">
+              <button
+                className="rounded-lg bg-emerald-500/10 px-3 py-1.5 text-[12px] font-medium text-emerald-400 transition hover:bg-emerald-500/20"
+                onClick={() => onResolve(pending.map((s) => s.id), 'accept')}
+                type="button"
+              >
+                Accept all ({pending.length})
+              </button>
+              <button
+                className="rounded-lg px-3 py-1.5 text-[12px] font-medium text-zinc-500 transition hover:bg-zinc-800 hover:text-zinc-300"
+                onClick={() => onResolve(pending.map((s) => s.id), 'dismiss')}
+                type="button"
+              >
+                Dismiss all
+              </button>
+            </div>
+          )}
+        </>
       )}
     </div>
   );
@@ -365,150 +690,52 @@ function DiscoveredServerRow({
   );
 }
 
-/* ── Copilot Customization ────────────────────────────────── */
+/* ── Danger Zone ──────────────────────────────────────────── */
 
-function CustomizationSection({
-  customization,
-  onRescan,
-  onSetAgentProfileEnabled,
+function DangerZoneContent({
+  confirmingRemove,
+  onRemove,
+  onCancelRemove,
 }: {
-  customization: ProjectCustomizationState;
-  onRescan: () => void;
-  onSetAgentProfileEnabled: (agentProfileId: string, enabled: boolean) => void;
+  confirmingRemove: boolean;
+  onRemove: () => void;
+  onCancelRemove: () => void;
 }) {
   return (
     <div>
       <SectionHeader
-        description="Instructions, custom agents, and prompt files discovered from .github/ and AGENTS.md."
-        title="Copilot Customization"
-      >
-        <button
-          className="flex items-center gap-1.5 rounded-lg bg-zinc-800 px-3 py-1.5 text-[13px] font-medium text-zinc-200 transition hover:bg-zinc-700"
-          onClick={onRescan}
-          title="Re-scan for Copilot customization files"
-          type="button"
-        >
-          <RefreshCw className="size-3.5" />
-          Re-scan
-        </button>
-      </SectionHeader>
-
-      <div className="space-y-4">
-        {customization.instructions.length > 0 && (
-          <CustomizationInstructionsList instructions={customization.instructions} />
-        )}
-        {customization.agentProfiles.length > 0 && (
-          <CustomizationAgentsList
-            agents={customization.agentProfiles}
-            onSetEnabled={onSetAgentProfileEnabled}
-          />
-        )}
-        {customization.promptFiles.length > 0 && (
-          <CustomizationPromptsList promptFiles={customization.promptFiles} />
-        )}
-      </div>
-    </div>
-  );
-}
-
-function CustomizationInstructionsList({ instructions }: { instructions: ProjectInstructionFile[] }) {
-  return (
-    <div>
-      <h4 className="mb-2 text-[12px] font-medium text-zinc-400">Instructions</h4>
-      <div className="space-y-1">
-        {instructions.map((instruction) => (
-          <div
-            key={instruction.id}
-            className="rounded-xl border border-zinc-800 bg-zinc-900/40 px-4 py-3"
+        description="Irreversible actions for this project."
+        title="Danger Zone"
+      />
+      <div className="rounded-xl border border-red-500/20 bg-red-500/5 px-5 py-5">
+        <h4 className="text-[13px] font-semibold text-zinc-200">Remove project</h4>
+        <p className="mt-1 text-[12px] text-zinc-500">
+          Removing a project deletes all its sessions and discovered tooling from Aryx.
+          Your project files on disk are not affected.
+        </p>
+        <div className="mt-4 flex items-center gap-3">
+          <button
+            className={`flex items-center gap-1.5 rounded-lg px-3 py-1.5 text-[13px] font-medium transition ${
+              confirmingRemove
+                ? 'bg-red-600 text-white hover:bg-red-500'
+                : 'bg-red-500/10 text-red-400 hover:bg-red-500/20'
+            }`}
+            onClick={onRemove}
+            type="button"
           >
-            <div className="flex items-center gap-2">
-              <FileCode2 className="size-3.5 shrink-0 text-indigo-400" />
-              <span className="text-[12px] font-medium text-zinc-200">{instruction.sourcePath}</span>
-            </div>
-            <p className="mt-1.5 line-clamp-3 text-[11px] leading-relaxed text-zinc-500">
-              {instruction.content}
-            </p>
-          </div>
-        ))}
-      </div>
-    </div>
-  );
-}
-
-function CustomizationAgentsList({
-  agents,
-  onSetEnabled,
-}: {
-  agents: ProjectAgentProfile[];
-  onSetEnabled: (agentProfileId: string, enabled: boolean) => void;
-}) {
-  return (
-    <div>
-      <h4 className="mb-2 text-[12px] font-medium text-zinc-400">Custom Agents</h4>
-      <div className="space-y-1">
-        {agents.map((agent) => (
-          <div
-            key={agent.id}
-            className="flex items-center gap-3 rounded-xl border border-transparent px-4 py-3 hover:border-zinc-800 hover:bg-zinc-900"
-          >
-            <Sparkles className="size-4 shrink-0 text-amber-400" />
-            <div className="min-w-0 flex-1">
-              <div className="flex items-center gap-2">
-                <span className="truncate text-[13px] font-medium text-zinc-200">
-                  {agent.displayName ?? agent.name}
-                </span>
-                {agent.tools && agent.tools.length > 0 && (
-                  <span className="rounded-full bg-zinc-800 px-2 py-0.5 text-[10px] font-medium text-zinc-400">
-                    {agent.tools.length} tool{agent.tools.length === 1 ? '' : 's'}
-                  </span>
-                )}
-              </div>
-              {agent.description && (
-                <p className="mt-0.5 truncate text-[12px] text-zinc-500">{agent.description}</p>
-              )}
-              <p className="mt-0.5 truncate text-[11px] text-zinc-600">{agent.sourcePath}</p>
-            </div>
+            <Trash2 className="size-3.5" />
+            {confirmingRemove ? 'Confirm removal' : 'Remove project'}
+          </button>
+          {confirmingRemove && (
             <button
-              aria-label={agent.enabled ? `Disable ${agent.name}` : `Enable ${agent.name}`}
-              aria-pressed={agent.enabled}
-              className="shrink-0"
-              onClick={() => onSetEnabled(agent.id, !agent.enabled)}
+              className="rounded-lg px-3 py-1.5 text-[13px] font-medium text-zinc-400 transition hover:bg-zinc-800 hover:text-zinc-200"
+              onClick={onCancelRemove}
               type="button"
             >
-              <ToggleSwitch enabled={agent.enabled} size="sm" />
+              Cancel
             </button>
-          </div>
-        ))}
-      </div>
-    </div>
-  );
-}
-
-function CustomizationPromptsList({ promptFiles }: { promptFiles: ProjectPromptFile[] }) {
-  return (
-    <div>
-      <h4 className="mb-2 text-[12px] font-medium text-zinc-400">Prompt Files</h4>
-      <div className="space-y-1">
-        {promptFiles.map((prompt) => (
-          <div
-            key={prompt.id}
-            className="rounded-xl border border-transparent px-4 py-3 hover:border-zinc-800 hover:bg-zinc-900"
-          >
-            <div className="flex items-center gap-2">
-              <FileText className="size-3.5 shrink-0 text-emerald-400" />
-              <span className="text-[13px] font-medium text-zinc-200">{prompt.name}</span>
-              {prompt.variables.length > 0 && (
-                <span className="rounded-full bg-zinc-800 px-2 py-0.5 text-[10px] font-medium text-zinc-400">
-                  {prompt.variables.length} variable{prompt.variables.length === 1 ? '' : 's'}
-                </span>
-              )}
-            </div>
-            {prompt.description && (
-              <p className="mt-0.5 text-[12px] text-zinc-500">{prompt.description}</p>
-            )}
-            <p className="mt-0.5 truncate text-[11px] text-zinc-600">{prompt.sourcePath}</p>
-          </div>
-        ))}
+          )}
+        </div>
       </div>
     </div>
   );
@@ -523,7 +750,7 @@ function SectionHeader({
 }: {
   title: string;
   description: string;
-  children?: React.ReactNode;
+  children?: ReactNode;
 }) {
   return (
     <div className="mb-4 flex items-center justify-between gap-3">
@@ -535,3 +762,25 @@ function SectionHeader({
     </div>
   );
 }
+
+function RescanButton({ onClick, label = 'Re-scan' }: { onClick: () => void; label?: string }) {
+  return (
+    <button
+      className="flex items-center gap-1.5 rounded-lg bg-zinc-800 px-3 py-1.5 text-[13px] font-medium text-zinc-200 transition hover:bg-zinc-700"
+      onClick={onClick}
+      title={label === 'Scan' ? 'Scan for files' : 'Re-scan for changes'}
+      type="button"
+    >
+      <RefreshCw className="size-3.5" />
+      {label}
+    </button>
+  );
+}
+
+function EmptyState({ children }: { children: ReactNode }) {
+  return (
+    <div className="rounded-xl border border-dashed border-zinc-800 bg-zinc-900/20 px-5 py-8 text-center text-[12px] leading-relaxed text-zinc-500">
+      {children}
+    </div>
+  );
+}