diff --git a/hub/admin-web/src/lib/components/FolderTree.svelte b/hub/admin-web/src/lib/components/FolderTree.svelte
index 8576128..5fd27db 100644
--- a/hub/admin-web/src/lib/components/FolderTree.svelte
+++ b/hub/admin-web/src/lib/components/FolderTree.svelte
@@ -33,7 +33,7 @@
 <div class="space-y-0.5">
 	{#each childProjects as p (p.id)}
 		<a
-			href={`/admin/org/${slug}/projects/${p.id}`}
+			href={`/admin/projects/${p.id}`}
 			class="flex items-center gap-2.5 px-3 py-2.5 text-sm transition hover:bg-surface-100"
 		>
 			<span class="flex h-7 w-7 items-center justify-center border border-primary-200 bg-primary-50 text-primary-700">
diff --git a/hub/admin-web/src/lib/org.ts b/hub/admin-web/src/lib/org.ts
new file mode 100644
index 0000000..fd892ff
--- /dev/null
+++ b/hub/admin-web/src/lib/org.ts
@@ -0,0 +1,40 @@
+import type { MeResponse, OrgMembership } from './api';
+
+/** Alpha Silo host prefix: <slug>.educraft[.dev].… */
+export function hostOrgSlug(hostname: string = typeof window !== 'undefined' ? window.location.hostname : ''): string | null {
+	const host = hostname.toLowerCase();
+	const m = host.match(/^([a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?)\.educraft(?:-dev)?\./);
+	return m?.[1] ?? null;
+}
+
+export function isOrgAdmin(org: OrgMembership | null | undefined): boolean {
+	if (!org) return false;
+	const role = String(org.role ?? '').toUpperCase();
+	return role === 'OWNER' || role === 'ADMIN';
+}
+
+/**
+ * Resolve the tenancy for this browser session.
+ * Prefers hostname slug (silo), then ?org=, then first admin membership, then first membership.
+ */
+export function resolveOrg(me: MeResponse | null | undefined, search: string = ''): OrgMembership | null {
+	if (!me || me.organizations.length === 0) return null;
+	const host = hostOrgSlug();
+	if (host) {
+		const byHost = me.organizations.find((o) => o.slug === host);
+		if (byHost) return byHost;
+	}
+	const q = new URLSearchParams(search).get('org')?.trim();
+	if (q) {
+		const byQuery = me.organizations.find((o) => o.slug === q);
+		if (byQuery) return byQuery;
+	}
+	const admin = me.organizations.find((o) => isOrgAdmin(o));
+	return admin ?? me.organizations[0] ?? null;
+}
+
+/** SPA paths no longer embed org slug (subdomain carries tenancy). */
+export function adminPath(rest: string = ''): string {
+	const cleaned = rest.replace(/^\/+/, '');
+	return cleaned === '' ? '/admin' : `/admin/${cleaned}`;
+}
diff --git a/hub/admin-web/src/lib/session.ts b/hub/admin-web/src/lib/session.ts
index 21cc2c3..2507957 100644
--- a/hub/admin-web/src/lib/session.ts
+++ b/hub/admin-web/src/lib/session.ts
@@ -35,12 +35,9 @@ export async function loadSession(): Promise<void> {
 /**
  * Resolve org slug for org-scoped Feishu OAuth (`GET /auth/feishu/:orgSlug`).
  * Unscoped `/auth/feishu` is disabled unless allowLegacyFeishuOAuth is on.
+ * Path no longer carries tenancy: prefer hostname silo slug, then ?org=.
  */
 export function resolveLoginOrgSlug(): string | null {
-	const path = window.location.pathname.split('/').filter(Boolean);
-	if (path[0] === 'admin' && path[1] === 'org' && path[2]) {
-		return decodeURIComponent(path[2]);
-	}
 	const q = new URLSearchParams(window.location.search).get('org');
 	if (q && q.trim() !== '') return q.trim();
 
@@ -48,6 +45,12 @@ export function resolveLoginOrgSlug(): string | null {
 	const host = window.location.hostname.toLowerCase();
 	const m = host.match(/^([a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?)\.educraft(?:-dev)?\./);
 	if (m?.[1]) return m[1];
+
+	// Legacy path while old bookmarks still land briefly before redirect.
+	const path = window.location.pathname.split('/').filter(Boolean);
+	if (path[0] === 'admin' && path[1] === 'org' && path[2]) {
+		return decodeURIComponent(path[2]);
+	}
 	return null;
 }
 
diff --git a/hub/admin-web/src/routes/+layout.svelte b/hub/admin-web/src/routes/+layout.svelte
index c78b8bf..2e123b9 100644
--- a/hub/admin-web/src/routes/+layout.svelte
+++ b/hub/admin-web/src/routes/+layout.svelte
@@ -5,6 +5,7 @@
 	import { page } from '$app/state';
 	import { session, loadSession, logout, redirectToLogin } from '$lib/session';
 	import type { OrgMembership } from '$lib/api';
+	import { adminPath, isOrgAdmin, resolveOrg } from '$lib/org';
 	import { orgRoleLabel } from '$lib/format';
 	import Icon from '$lib/components/Icon.svelte';
 	import ToastHost from '$lib/components/ToastHost.svelte';
@@ -32,56 +33,36 @@
 		{ key: 'capabilities', label: '能力', icon: 'provider' as const },
 	];
 
-	function isAdmin(org: OrgMembership): boolean {
-		const role = String(org.role ?? '').toUpperCase();
-		return role === 'OWNER' || role === 'ADMIN';
-	}
-
-	function orgSlugFromPath(): string | null {
-		const parts = page.url.pathname.split('/').filter(Boolean);
-		if (parts[0] === 'admin' && parts[1] === 'org' && parts[2]) {
-			return decodeURIComponent(parts[2]);
-		}
-		return null;
-	}
-
-	function isOnProjectRoute(): boolean {
-		const parts = page.url.pathname.split('/').filter(Boolean);
-		return parts[0] === 'admin' && parts[1] === 'org' && parts[3] === 'projects';
-	}
-
 	function memberships(): OrgMembership[] {
 		return $session.me?.organizations ?? [];
 	}
 
 	function adminOrgs(): OrgMembership[] {
-		return memberships().filter(isAdmin);
+		return memberships().filter((o) => isOrgAdmin(o));
 	}
 
 	function currentOrg(): OrgMembership | null {
-		const slug = orgSlugFromPath();
-		if (!slug) return null;
-		return memberships().find((o) => o.slug === slug) ?? null;
+		return resolveOrg($session.me, page.url.search);
 	}
 
-	function pickHomeOrg(): OrgMembership | null {
-		const admin = adminOrgs()[0];
-		if (admin) return admin;
-		return memberships()[0] ?? null;
+	function isOnProjectRoute(): boolean {
+		const parts = page.url.pathname.split('/').filter(Boolean);
+		// /admin/projects or /admin/projects/:id
+		return parts[0] === 'admin' && parts[1] === 'projects';
 	}
 
 	function activeKey(): string {
 		const parts = page.url.pathname.split('/').filter(Boolean);
-		if (parts[0] !== 'admin' || parts[1] !== 'org' || !parts[2]) return '';
-		return parts[3] ?? 'overview';
+		if (parts[0] !== 'admin') return '';
+		// /admin → overview; /admin/usage → usage; /admin/projects/x → projects
+		return parts[1] ?? 'overview';
 	}
 
 	function navHref(key: string): string {
-		const slug = currentOrg()?.slug ?? pickHomeOrg()?.slug;
-		if (!slug) return '/';
-		if (key === 'overview') return `/admin/org/${slug}`;
-		return `/admin/org/${slug}/${key}`;
+		if (key === 'overview') return adminPath();
+		return adminPath(key);
 	}
+
 	function pageTitle(): string {
 		const key = activeKey();
 		if (key === 'overview' || key === '') return '概览';
@@ -91,7 +72,10 @@
 
 	function switchOrg(nextSlug: string) {
 		if (!nextSlug || nextSlug === currentOrg()?.slug) return;
-		void goto(`/admin/org/${nextSlug}`);
+		// Path is tenancy-free; keep optional ?org= for local multi-membership debugging.
+		const url = new URL(page.url.href);
+		url.searchParams.set('org', nextSlug);
+		void goto(`${url.pathname}${url.search}`, { replaceState: true });
 	}
 
 	function handleLogout(e: Event) {
@@ -114,33 +98,23 @@
 	$effect(() => {
 		if ($session.loading || !$session.me) return;
 
-		const slug = orgSlugFromPath();
-		const matched = slug ? memberships().find((o) => o.slug === slug) : null;
+		const path = page.url.pathname;
+		// Legacy /admin/org/:slug… is handled by admin/org/[...path] page.
 
-		// Org admins: route to their first admin org if none matched as admin.
+		const org = currentOrg();
 		const admins = adminOrgs();
-		if (matched && isAdmin(matched)) {
+
+		if (org && isOrgAdmin(org)) {
 			redirecting = false;
 			return;
 		}
-		if (!matched && admins.length > 0) {
-			const target = `/admin/org/${admins[0].slug}`;
-			if (page.url.pathname !== target && !page.url.pathname.startsWith(`${target}/`)) {
-				redirecting = true;
-				void goto(target, { replaceState: true });
-			}
-			return;
-		}
 
-		// Members (non-admin): project pages are open to project MANAGE holders;
-		// the org overview and other admin-only surfaces are not for them.
-		if (matched && !isAdmin(matched)) {
+		// Member only: allow project routes; bounce admin-only surfaces to projects.
+		if (org && !isOrgAdmin(org)) {
 			redirecting = false;
-			const parts = page.url.pathname.split('/').filter(Boolean);
-			const onOverview = parts.length === 3; // /admin/org/:slug
-			if (onOverview) {
-				const target = `/admin/org/${matched.slug}/projects`;
-				if (page.url.pathname !== target) {
+			if (!isOnProjectRoute()) {
+				const target = adminPath('projects');
+				if (path !== target) {
 					redirecting = true;
 					void goto(target, { replaceState: true });
 				}
@@ -148,12 +122,11 @@
 			return;
 		}
 
-		// No matched org and no admin orgs: route a member to their first org's
-		// projects page so they can reach project MANAGE surfaces.
-		if (!matched && memberships().length > 0) {
-			const home = memberships()[0];
-			const target = `/admin/org/${home.slug}/projects`;
-			if (page.url.pathname !== target && !page.url.pathname.startsWith(`${target}/`)) {
+		// No org resolved but user has memberships → land on first org's projects/overview via resolveOrg next tick
+		if (!org && memberships().length > 0) {
+			const home = admins[0] ?? memberships()[0]!;
+			const target = isOrgAdmin(home) ? adminPath() : adminPath('projects');
+			if (path !== target && !path.startsWith(`${target}/`)) {
 				redirecting = true;
 				void goto(target, { replaceState: true });
 			}
@@ -174,14 +147,14 @@
 					d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
 				></path>
 			</svg>
-			<p class="text-sm">{redirecting ? '正在进入组织…' : '正在加载会话…'}</p>
+			<p class="text-sm">加载中…</p>
 		</div>
 	</div>
 {:else if $session.error}
 	<div class="saas-status-panel">
 		<div class="saas-status-card">
 			<div
-				class="mx-auto mb-4 flex h-12 w-12 items-center justify-center border border-error-300 bg-error-100 text-error-700 font-bold"
+				class="mx-auto mb-3 flex h-12 w-12 items-center justify-center border border-error-200 bg-error-50 text-error-700"
 			>
 				!
 			</div>
@@ -194,7 +167,7 @@
 	<div class="saas-status-panel">
 		<div class="saas-status-card">
 			<div
-				class="mx-auto mb-5 flex h-12 w-12 items-center justify-center border border-primary-700 bg-primary-600 text-white font-bold"
+				class="mx-auto mb-4 flex h-12 w-12 items-center justify-center border border-primary-700 bg-primary-600 text-sm font-bold text-white"
 			>
 				CPH
 			</div>
@@ -203,7 +176,7 @@
 			<button class="saas-btn-primary w-full" onclick={() => redirectToLogin()}>使用飞书登录</button>
 		</div>
 	</div>
-{:else if currentOrg() && isAdmin(currentOrg()!)}
+{:else if currentOrg() && isOrgAdmin(currentOrg()!)}
 	{@const org = currentOrg()!}
 	{@const me = $session.me!}
 	<div class="saas-shell">
@@ -228,17 +201,19 @@
 				</div>
 				<div class="min-w-0">
 					<div class="truncate text-sm font-semibold text-surface-900">组织后台</div>
-					<div class="truncate text-xs text-surface-600">Curriculum Hub</div>
+					<div class="truncate text-xs text-surface-600">{org.name}</div>
 				</div>
 			</div>
 
-			<div class="px-3 pb-3">
-				<div class="mb-1.5 flex items-center gap-1.5 text-xs font-medium text-surface-700">
-					<Icon name="org" class="h-3.5 w-3.5" />
-					组织
+			{#if me.organizations.length > 1}
+				<div class="px-3 pb-3">
+					<div class="mb-1.5 flex items-center gap-1.5 text-xs font-medium text-surface-700">
+						<Icon name="org" class="h-3.5 w-3.5" />
+						组织
+					</div>
+					<SelectField items={orgSelectItems(me.organizations)} value={org.slug} onchange={switchOrg} />
 				</div>
-				<SelectField items={orgSelectItems(me.organizations)} value={org.slug} onchange={switchOrg} />
-			</div>
+			{/if}
 
 			<nav class="flex-1 space-y-0.5 overflow-y-auto px-2 pb-3">
 				<p class="px-3 pb-1 pt-2 text-[11px] font-semibold uppercase tracking-wider text-surface-600">工作台</p>
@@ -308,13 +283,13 @@
 			</main>
 		</div>
 	</div>
-{:else if currentOrg() && !isAdmin(currentOrg()!) && isOnProjectRoute()}
+{:else if currentOrg() && !isOrgAdmin(currentOrg()!) && isOnProjectRoute()}
 	{@const org = currentOrg()!}
 	{@const me = $session.me!}
 	<div class="saas-shell">
 		<div class="saas-main">
 			<header class="saas-topbar">
-				<a href={`/admin/org/${org.slug}/projects`} class="saas-btn-ghost px-2!" aria-label="返回项目列表">
+				<a href={adminPath('projects')} class="saas-btn-ghost px-2!" aria-label="返回项目列表">
 					<Icon name="menu" class="h-5 w-5" />
 				</a>
 				<div class="min-w-0">
@@ -343,7 +318,7 @@
 			</main>
 		</div>
 	</div>
-{:else if currentOrg() && !isAdmin(currentOrg()!)}
+{:else if currentOrg() && !isOrgAdmin(currentOrg()!)}
 	{@const denied = currentOrg()!}
 	<div class="saas-status-panel">
 		<div class="saas-status-card">
@@ -352,7 +327,7 @@
 				组织 <strong>{denied.name}</strong>（/{denied.slug}）中你的角色是
 				<span class="saas-badge-neutral mx-1">{orgRoleLabel(denied.role)}</span>。普通成员仅可访问自己有授权的项目。
 			</p>
-			<a class="saas-btn-primary" href={`/admin/org/${denied.slug}/projects`}>查看我的项目</a>
+			<a class="saas-btn-primary" href={adminPath('projects')}>查看我的项目</a>
 			{#if memberships().length > 1}
 				<p class="saas-label text-left mb-1.5 mt-3">切换到其他组织</p>
 				<div class="mb-4">
@@ -363,14 +338,14 @@
 		</div>
 	</div>
 {:else if memberships().length > 0}
-	{@const denied = pickHomeOrg()!}
+	{@const denied = resolveOrg($session.me) ?? memberships()[0]!}
 	<div class="saas-status-panel">
 		<div class="saas-status-card">
 			<h2 class="mb-2 text-lg font-semibold">正在跳转…</h2>
 			<p class="mb-5 text-sm text-surface-700">
 				即将进入 <strong>{denied.name}</strong>（/{denied.slug}）的项目。
 			</p>
-			<a class="saas-btn-primary" href={`/admin/org/${denied.slug}/projects`}>立即进入</a>
+			<a class="saas-btn-primary" href={adminPath('projects')}>立即进入</a>
 			<button class="saas-btn-ghost mt-3" onclick={handleLogout}>退出登录</button>
 		</div>
 	</div>
diff --git a/hub/admin-web/src/routes/+page.svelte b/hub/admin-web/src/routes/+page.svelte
index 5e72a6b..1cf2cd4 100644
--- a/hub/admin-web/src/routes/+page.svelte
+++ b/hub/admin-web/src/routes/+page.svelte
@@ -11,7 +11,7 @@
 			return r === 'OWNER' || r === 'ADMIN';
 		});
 		const target = admin ?? me.organizations[0];
-		return target ? `/admin/org/${target.slug}` : null;
+		return target ? `/admin` : null;
 	}
 
 	onMount(() => {
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/+page.svelte b/hub/admin-web/src/routes/admin/+page.svelte
similarity index 95%
rename from hub/admin-web/src/routes/admin/org/[slug]/+page.svelte
rename to hub/admin-web/src/routes/admin/+page.svelte
index 30570e5..fd34f18 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/+page.svelte
+++ b/hub/admin-web/src/routes/admin/+page.svelte
@@ -2,6 +2,7 @@
 	import { page } from '$app/state';
 	import { api, type OrgMembership } from '$lib/api';
 	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import { fmtCost, fmtNum, orgRoleLabel } from '$lib/format';
 	import PageHeader from '$lib/components/PageHeader.svelte';
 	import StatCard from '$lib/components/StatCard.svelte';
@@ -10,7 +11,8 @@
 	import SwitchControl from '$lib/components/SwitchControl.svelte';
 	import { toastError, toastSuccess } from '$lib/toast';
 
-	let orgSlug = $derived(page.params.slug ?? '');
+	const orgFromSession = $derived(resolveOrg($session.me, page.url.search));
+	let orgSlug = $derived(orgFromSession?.slug ?? '');
 	let org = $derived($session.me?.organizations.find((o) => o.slug === orgSlug) as OrgMembership | undefined);
 
 	let settings = $state<{ membersCanCreateProjects: boolean } | null>(null);
@@ -96,7 +98,7 @@
 			<h2 class="saas-section-title">用量概览</h2>
 			<p class="saas-muted">totals 含全部 UsageFact；分账明细见用量页。</p>
 		</div>
-		<a class="saas-btn-secondary py-1.5! text-sm" href={`/admin/org/${orgSlug}/usage`}>完整用量报告</a>
+		<a class="saas-btn-secondary py-1.5! text-sm" href={`/admin/usage`}>完整用量报告</a>
 	</div>
 
 	<div class="mb-6 grid gap-3 sm:grid-cols-2 lg:grid-cols-3">
@@ -115,7 +117,7 @@
 					<h3 class="text-sm font-semibold text-surface-800">消费来源（Top）</h3>
 					<p class="saas-muted text-xs">模型完成 vs 外部能力，按成本降序前 5</p>
 				</div>
-				<a class="text-sm text-primary-700 hover:underline" href={`/admin/org/${orgSlug}/usage`}>查看全部分账</a>
+				<a class="text-sm text-primary-700 hover:underline" href={`/admin/usage`}>查看全部分账</a>
 			</div>
 			<div class="overflow-x-auto">
 				<table class="data-table">
@@ -167,7 +169,7 @@
 						{#each usage.projects as p}
 							<tr>
 								<td class="font-medium">
-									<a class="hover:text-primary-700 hover:underline" href={`/admin/org/${orgSlug}/projects/${p.projectId}`}>
+									<a class="hover:text-primary-700 hover:underline" href={`/admin/projects/${p.projectId}`}>
 										{p.projectName}
 									</a>
 								</td>
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/capabilities/+page.svelte b/hub/admin-web/src/routes/admin/capabilities/+page.svelte
similarity index 97%
rename from hub/admin-web/src/routes/admin/org/[slug]/capabilities/+page.svelte
rename to hub/admin-web/src/routes/admin/capabilities/+page.svelte
index dd97739..5a1573b 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/capabilities/+page.svelte
+++ b/hub/admin-web/src/routes/admin/capabilities/+page.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
 	import { page } from '$app/state';
 	import { api, type CapabilityConnection } from '$lib/api';
+	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import { fmtDate } from '$lib/format';
 	import { Label } from 'bits-ui';
 	import PageHeader from '$lib/components/PageHeader.svelte';
@@ -8,7 +10,8 @@
 	import ErrorBanner from '$lib/components/ErrorBanner.svelte';
 	import { toastError, toastSuccess } from '$lib/toast';
 
-	const slug = $derived(page.params.slug ?? '');
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 
 	const KNOWN_CAPABILITIES = [
 		{ id: 'pdf_to_md_bundle', label: 'PDF → Markdown', description: '将 PDF 转换为带图片的 Markdown bundle（阿里云文档智能，含公式 LaTeX 识别）' },
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/capacity/+page.svelte b/hub/admin-web/src/routes/admin/capacity/+page.svelte
similarity index 98%
rename from hub/admin-web/src/routes/admin/org/[slug]/capacity/+page.svelte
rename to hub/admin-web/src/routes/admin/capacity/+page.svelte
index 70191a4..f024cd7 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/capacity/+page.svelte
+++ b/hub/admin-web/src/routes/admin/capacity/+page.svelte
@@ -1,13 +1,16 @@
 <script lang="ts">
 	import { page } from '$app/state';
 	import { api, type CapacityDimension, type CapacityDimensionRow, type CapacityPolicyView } from '$lib/api';
+	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import PageHeader from '$lib/components/PageHeader.svelte';
 	import LoadingState from '$lib/components/LoadingState.svelte';
 	import ErrorBanner from '$lib/components/ErrorBanner.svelte';
 	import EmptyState from '$lib/components/EmptyState.svelte';
 	import { toastError, toastSuccess } from '$lib/toast';
 
-	const slug = $derived(page.params.slug ?? '');
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 
 	// Friendlier, user-facing labels. No spec jargon (墙钟 → 运行时长, etc.).
 	const DIMENSION_LABELS: Record<CapacityDimension, string> = {
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/feishu/+page.svelte b/hub/admin-web/src/routes/admin/feishu/+page.svelte
similarity index 96%
rename from hub/admin-web/src/routes/admin/org/[slug]/feishu/+page.svelte
rename to hub/admin-web/src/routes/admin/feishu/+page.svelte
index 03a7a8b..3ad83eb 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/feishu/+page.svelte
+++ b/hub/admin-web/src/routes/admin/feishu/+page.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
 	import { page } from '$app/state';
 	import { api, type FeishuApplicationConnection } from '$lib/api';
+	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import { fmtDate } from '$lib/format';
 	import { Label } from 'bits-ui';
 	import PageHeader from '$lib/components/PageHeader.svelte';
@@ -8,7 +10,8 @@
 	import ErrorBanner from '$lib/components/ErrorBanner.svelte';
 	import { toastError, toastSuccess } from '$lib/toast';
 
-	const slug = $derived(page.params.slug ?? '');
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 
 	let connection = $state<FeishuApplicationConnection | null>(null);
 	let loading = $state(true);
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/members/+page.svelte b/hub/admin-web/src/routes/admin/members/+page.svelte
similarity index 96%
rename from hub/admin-web/src/routes/admin/org/[slug]/members/+page.svelte
rename to hub/admin-web/src/routes/admin/members/+page.svelte
index f693938..c45e115 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/members/+page.svelte
+++ b/hub/admin-web/src/routes/admin/members/+page.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
 	import { page } from '$app/state';
 	import { api, type OrgMember } from '$lib/api';
+	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import { fmtDate } from '$lib/format';
 	import { ORG_ROLES, ORG_ROLE_LABELS, PERMISSION_ROLE_LABELS } from '$lib/constants';
 	import PageHeader from '$lib/components/PageHeader.svelte';
@@ -10,7 +12,8 @@
 	import SelectField from '$lib/components/SelectField.svelte';
 	import { toastError, toastSuccess } from '$lib/toast';
 
-	const slug = $derived(page.params.slug ?? '');
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 	const roleItems = ORG_ROLES.map((r) => ({ value: r, label: ORG_ROLE_LABELS[r] }));
 	const permHint = Object.values(PERMISSION_ROLE_LABELS).join(' / ');
 
diff --git a/hub/admin-web/src/routes/admin/org/[...path]/+page.svelte b/hub/admin-web/src/routes/admin/org/[...path]/+page.svelte
new file mode 100644
index 0000000..7674166
--- /dev/null
+++ b/hub/admin-web/src/routes/admin/org/[...path]/+page.svelte
@@ -0,0 +1,23 @@
+<script lang="ts">
+	/**
+	 * Legacy bookmarks: /admin/org/:slug[/...] → /admin[/...]
+	 * Tenancy lives on the silo host, not the path.
+	 */
+	import { onMount } from 'svelte';
+	import { goto } from '$app/navigation';
+	import { page } from '$app/state';
+
+	onMount(() => {
+		const raw = page.params.path ?? '';
+		const segments = raw.split('/').filter(Boolean);
+		// Drop the old org slug (first segment) when present.
+		const rest = segments.length > 0 ? segments.slice(1).join('/') : '';
+		const target = rest === '' ? '/admin' : `/admin/${rest}`;
+		const q = page.url.search;
+		void goto(`${target}${q}`, { replaceState: true });
+	});
+</script>
+
+<div class="saas-status-panel">
+	<p class="text-sm text-surface-600">正在重定向到新地址…</p>
+</div>
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/projects/+page.svelte b/hub/admin-web/src/routes/admin/projects/+page.svelte
similarity index 95%
rename from hub/admin-web/src/routes/admin/org/[slug]/projects/+page.svelte
rename to hub/admin-web/src/routes/admin/projects/+page.svelte
index b79e2f8..2daddf0 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/projects/+page.svelte
+++ b/hub/admin-web/src/routes/admin/projects/+page.svelte
@@ -2,6 +2,7 @@
 	import { page } from '$app/state';
 	import { api, type ExplorerData, type ExplorerFolder, type ExplorerProject, type OrgMembership } from '$lib/api';
 	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import FolderTree from '$lib/components/FolderTree.svelte';
 	import PageHeader from '$lib/components/PageHeader.svelte';
 	import LoadingState from '$lib/components/LoadingState.svelte';
@@ -13,8 +14,8 @@
 	import { fmtDate } from '$lib/format';
 	import { toastError, toastSuccess } from '$lib/toast';
 
-	const slug = $derived(page.params.slug ?? '');
-	const org = $derived(($session.me?.organizations.find((o) => o.slug === slug) as OrgMembership | undefined) ?? null);
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 	const isAdmin = $derived(!!org && (org.role === 'OWNER' || org.role === 'ADMIN'));
 
 	let data = $state<ExplorerData | null>(null);
@@ -87,7 +88,7 @@
 			projectName = '';
 			projectFolder = '';
 			showProjectModal = false;
-			window.location.href = `/admin/org/${slug}/projects/${res.id}`;
+			window.location.href = `/admin/projects/${res.id}`;
 		} catch (err) {
 			toastError(err instanceof Error ? err.message : String(err));
 		}
@@ -207,7 +208,7 @@
 				</thead>
 				<tbody>
 					{#each myProjects as p}
-						<tr class="cursor-pointer" onclick={() => (window.location.href = `/admin/org/${slug}/projects/${p.id}`)}>
+						<tr class="cursor-pointer" onclick={() => (window.location.href = `/admin/projects/${p.id}`)}>
 							<td class="font-medium">{p.name}</td>
 							<td class="font-mono text-xs">{p.binding ? `群 ${p.binding.chatId}` : '—'}</td>
 							<td class="text-surface-700">{fmtDate(p.createdAt)}</td>
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/projects/[projectId]/+page.svelte b/hub/admin-web/src/routes/admin/projects/[projectId]/+page.svelte
similarity index 97%
rename from hub/admin-web/src/routes/admin/org/[slug]/projects/[projectId]/+page.svelte
rename to hub/admin-web/src/routes/admin/projects/[projectId]/+page.svelte
index 3cfb1aa..5c0dbc3 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/projects/[projectId]/+page.svelte
+++ b/hub/admin-web/src/routes/admin/projects/[projectId]/+page.svelte
@@ -9,6 +9,8 @@
 		type ExplorerData,
 		type ProjectUsageReport,
 	} from '$lib/api';
+	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import {
 		fmtCost,
 		fmtDate,
@@ -27,7 +29,8 @@
 	import Icon from '$lib/components/Icon.svelte';
 	import { toastError, toastSuccess } from '$lib/toast';
 
-	const slug = $derived(page.params.slug ?? '');
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 	const projectId = $derived(page.params.projectId ?? '');
 	const roleItems = PERMISSION_ROLES.map((r) => ({ value: r, label: PERMISSION_ROLE_LABELS[r] }));
 	const roleChain = `${PERMISSION_ROLE_LABELS.READ} ⊂ ${PERMISSION_ROLE_LABELS.EDIT} ⊂ ${PERMISSION_ROLE_LABELS.MANAGE}`;
@@ -109,7 +112,7 @@
 		if (!confirm(`归档项目 ${proj?.name}?`)) return;
 		try {
 			await api.archiveProject(slug, projectId);
-			window.location.href = `/admin/org/${slug}/projects`;
+			window.location.href = `/admin/projects`;
 		} catch (err) {
 			toastError(err instanceof Error ? err.message : String(err));
 		}
@@ -170,7 +173,7 @@
 {:else if proj}
 	<div class="mb-2">
 		<a
-			href={`/admin/org/${slug}/projects`}
+			href={`/admin/projects`}
 			class="inline-flex items-center gap-1 text-sm text-surface-700 hover:text-primary-600"
 		>
 			<Icon name="arrow-left" class="h-4 w-4" />
@@ -293,7 +296,7 @@
 							{fmtTokens(projectUsage.inputTokens, projectUsage.outputTokens)}
 						</p>
 					</div>
-					<a class="text-sm text-primary-700 hover:underline" href={`/admin/org/${slug}/usage`}>组织报告</a>
+					<a class="text-sm text-primary-700 hover:underline" href={`/admin/usage`}>组织报告</a>
 				</div>
 				{#if projectUsage.breakdown.length === 0}
 					<div class="px-5 py-4 text-sm text-surface-600">尚无 UsageFact。</div>
@@ -368,7 +371,7 @@
 								<td class="text-right">
 									<a
 										class="text-sm text-primary-700 hover:underline"
-										href={`/admin/org/${slug}/sessions/${s.id}`}
+										href={`/admin/sessions/${s.id}`}
 									>
 										详情
 									</a>
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/provider/+page.svelte b/hub/admin-web/src/routes/admin/provider/+page.svelte
similarity index 96%
rename from hub/admin-web/src/routes/admin/org/[slug]/provider/+page.svelte
rename to hub/admin-web/src/routes/admin/provider/+page.svelte
index b253162..383ecc7 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/provider/+page.svelte
+++ b/hub/admin-web/src/routes/admin/provider/+page.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
 	import { page } from '$app/state';
 	import { api, type ProviderConnectionRow } from '$lib/api';
+	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import { fmtDate, providerModeLabel } from '$lib/format';
 	import { Label } from 'bits-ui';
 	import PageHeader from '$lib/components/PageHeader.svelte';
@@ -8,7 +10,8 @@
 	import ErrorBanner from '$lib/components/ErrorBanner.svelte';
 	import { toastError, toastSuccess } from '$lib/toast';
 
-	const slug = $derived(page.params.slug ?? '');
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 
 	let connections = $state<ProviderConnectionRow[]>([]);
 	let loading = $state(true);
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/roles/+page.svelte b/hub/admin-web/src/routes/admin/roles/+page.svelte
similarity index 95%
rename from hub/admin-web/src/routes/admin/org/[slug]/roles/+page.svelte
rename to hub/admin-web/src/routes/admin/roles/+page.svelte
index 9f4287d..e56e6a4 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/roles/+page.svelte
+++ b/hub/admin-web/src/routes/admin/roles/+page.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
 	import { page } from '$app/state';
 	import { api, type AgentRoleRow, type AgentModelRow, type AgentSkillRow } from '$lib/api';
+	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import PageHeader from '$lib/components/PageHeader.svelte';
 	import LoadingState from '$lib/components/LoadingState.svelte';
 	import ErrorBanner from '$lib/components/ErrorBanner.svelte';
@@ -8,7 +10,8 @@
 	import RoleCard from '$lib/components/RoleCard.svelte';
 	import { toastError, toastSuccess } from '$lib/toast';
 
-	const slug = $derived(page.params.slug ?? '');
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 
 	let roles = $state<AgentRoleRow[]>([]);
 	let models = $state<AgentModelRow[]>([]);
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/sessions/[sessionId]/+page.svelte b/hub/admin-web/src/routes/admin/sessions/[sessionId]/+page.svelte
similarity index 95%
rename from hub/admin-web/src/routes/admin/org/[slug]/sessions/[sessionId]/+page.svelte
rename to hub/admin-web/src/routes/admin/sessions/[sessionId]/+page.svelte
index e521d1e..9e3e43a 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/sessions/[sessionId]/+page.svelte
+++ b/hub/admin-web/src/routes/admin/sessions/[sessionId]/+page.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
 	import { page } from '$app/state';
 	import { api, type SessionDetail, type SessionRunRow, type UsageFactRow } from '$lib/api';
+	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import {
 		fmtCost,
 		fmtDate,
@@ -16,7 +18,8 @@
 	import EmptyState from '$lib/components/EmptyState.svelte';
 	import Icon from '$lib/components/Icon.svelte';
 
-	const slug = $derived(page.params.slug ?? '');
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 	const sessionId = $derived(page.params.sessionId ?? '');
 
 	let detail = $state<SessionDetail | null>(null);
@@ -92,7 +95,7 @@
 	<div class="mb-2">
 		<a
 			class="inline-flex items-center gap-1 text-sm text-surface-700 hover:text-primary-700"
-			href={`/admin/org/${slug}/projects/${detail.project.id}`}
+			href={`/admin/projects/${detail.project.id}`}
 		>
 			<Icon name="arrow-left" class="h-4 w-4" />
 			返回项目 {detail.project.name}
@@ -113,7 +116,7 @@
 			<div>
 				<dt class="text-surface-600">项目</dt>
 				<dd class="mt-0.5">
-					<a class="text-primary-700 hover:underline" href={`/admin/org/${slug}/projects/${detail.project.id}`}>
+					<a class="text-primary-700 hover:underline" href={`/admin/projects/${detail.project.id}`}>
 						{detail.project.name}
 					</a>
 				</dd>
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/skills/+page.svelte b/hub/admin-web/src/routes/admin/skills/+page.svelte
similarity index 95%
rename from hub/admin-web/src/routes/admin/org/[slug]/skills/+page.svelte
rename to hub/admin-web/src/routes/admin/skills/+page.svelte
index 2d06f91..9dc9f37 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/skills/+page.svelte
+++ b/hub/admin-web/src/routes/admin/skills/+page.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
 	import { page } from '$app/state';
 	import { api, type AgentSkillRow, type SkillFileEntry } from '$lib/api';
+	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import PageHeader from '$lib/components/PageHeader.svelte';
 	import LoadingState from '$lib/components/LoadingState.svelte';
 	import ErrorBanner from '$lib/components/ErrorBanner.svelte';
@@ -8,7 +10,8 @@
 	import SkillEditor from '$lib/components/SkillEditor.svelte';
 	import { toastError, toastSuccess } from '$lib/toast';
 
-	const slug = $derived(page.params.slug ?? '');
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 
 	let skills = $state<AgentSkillRow[]>([]);
 	let loading = $state(true);
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/teams/+page.svelte b/hub/admin-web/src/routes/admin/teams/+page.svelte
similarity index 97%
rename from hub/admin-web/src/routes/admin/org/[slug]/teams/+page.svelte
rename to hub/admin-web/src/routes/admin/teams/+page.svelte
index e552856..78a74cd 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/teams/+page.svelte
+++ b/hub/admin-web/src/routes/admin/teams/+page.svelte
@@ -2,6 +2,8 @@
 	import { Collapsible } from 'bits-ui';
 	import { page } from '$app/state';
 	import { api, type TeamRow, type TeamMemberRow } from '$lib/api';
+	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import { fmtDate } from '$lib/format';
 	import PageHeader from '$lib/components/PageHeader.svelte';
 	import LoadingState from '$lib/components/LoadingState.svelte';
@@ -9,7 +11,8 @@
 	import EmptyState from '$lib/components/EmptyState.svelte';
 	import { toastError, toastSuccess } from '$lib/toast';
 
-	const slug = $derived(page.params.slug ?? '');
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 
 	let teams = $state<TeamRow[]>([]);
 	let loading = $state(true);
diff --git a/hub/admin-web/src/routes/admin/org/[slug]/usage/+page.svelte b/hub/admin-web/src/routes/admin/usage/+page.svelte
similarity index 97%
rename from hub/admin-web/src/routes/admin/org/[slug]/usage/+page.svelte
rename to hub/admin-web/src/routes/admin/usage/+page.svelte
index f90b4cf..4dc6390 100644
--- a/hub/admin-web/src/routes/admin/org/[slug]/usage/+page.svelte
+++ b/hub/admin-web/src/routes/admin/usage/+page.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
 	import { page } from '$app/state';
 	import { api, type UsageReport, type UsageBreakdownRow } from '$lib/api';
+	import { session } from '$lib/session';
+	import { resolveOrg } from '$lib/org';
 	import {
 		fmtCost,
 		fmtDateOnly,
@@ -15,7 +17,8 @@
 	import ErrorBanner from '$lib/components/ErrorBanner.svelte';
 	import EmptyState from '$lib/components/EmptyState.svelte';
 
-	const slug = $derived(page.params.slug ?? '');
+	const org = $derived(resolveOrg($session.me, page.url.search));
+	const slug = $derived(org?.slug ?? '');
 
 	let usage = $state<UsageReport | null>(null);
 	let loading = $state(true);
@@ -224,7 +227,7 @@
 								<td class="tabular-nums text-surface-600">{fmtTokens(p.inputTokens, p.outputTokens)}</td>
 								<td class="tabular-nums">{fmtCost(p.costUsd)}</td>
 								<td class="text-right">
-									<a class="text-sm text-primary-700 hover:underline" href={`/admin/org/${slug}/projects/${p.projectId}`}>
+									<a class="text-sm text-primary-700 hover:underline" href={`/admin/projects/${p.projectId}`}>
 										查看项目
 									</a>
 								</td>
diff --git a/hub/package-lock.json b/hub/package-lock.json
index 360c489..126d0b6 100644
--- a/hub/package-lock.json
+++ b/hub/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@paradigm/hub",
-  "version": "0.0.34",
+  "version": "0.0.35",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@paradigm/hub",
-      "version": "0.0.34",
+      "version": "0.0.35",
       "dependencies": {
         "@alicloud/credentials": "^2.4.5",
         "@alicloud/docmind-api20220711": "^1.4.15",
diff --git a/hub/package.json b/hub/package.json
index 893ece7..7d33c65 100644
--- a/hub/package.json
+++ b/hub/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@paradigm/hub",
-  "version": "0.0.34",
+  "version": "0.0.35",
   "private": true,
   "type": "module",
   "engines": {
diff --git a/hub/src/admin/routes/authRoutes.ts b/hub/src/admin/routes/authRoutes.ts
index a7e4fb2..19c7099 100644
--- a/hub/src/admin/routes/authRoutes.ts
+++ b/hub/src/admin/routes/authRoutes.ts
@@ -432,16 +432,16 @@ async function resolvePostLoginRedirect(
       select: { organization: { select: { slug: true, name: true } } },
     });
     if (intended === null) return "/admin?error=not_an_active_org_member";
-    const orgRoot = `/admin/org/${intended.organization.slug}`;
+    const orgRoot = "/admin";
     // Default / missing returnTo sanitizes to "/admin". Always land in the org
     // admin SPA (not the legacy static "close this tab" complete page).
     if (returnTo === "/admin") {
       return orgRoot;
     }
-    return returnTo === orgRoot || returnTo.startsWith(`${orgRoot}/`) ? returnTo : orgRoot;
+    return normalizeAdminReturnTo(returnTo) ?? orgRoot;
   }
   if (returnTo !== "/admin" && returnTo.startsWith("/admin")) {
-    return returnTo;
+    return normalizeAdminReturnTo(returnTo) ?? "/admin";
   }
   const membership = await prisma.organizationMembership.findFirst({
     where: {
@@ -454,7 +454,7 @@ async function resolvePostLoginRedirect(
     orderBy: { createdAt: "asc" },
   });
   if (membership !== null) {
-    return `/admin/org/${membership.organization.slug}`;
+    return "/admin";
   }
   // Member-only or no org: still land on a shell page (SPA will explain).
   const any = await prisma.organizationMembership.findFirst({
@@ -463,7 +463,7 @@ async function resolvePostLoginRedirect(
     orderBy: { createdAt: "asc" },
   });
   if (any !== null) {
-    return `/admin/org/${any.organization.slug}`;
+    return "/admin/projects";
   }
   return "/admin/login?error=no_organization";
 }
@@ -489,7 +489,18 @@ export function sanitizeReturnTo(raw: string): string {
   if (!raw.startsWith("/admin")) {
     return "/admin";
   }
-  return raw;
+  return normalizeAdminReturnTo(raw) ?? "/admin";
+}
+
+/** Map legacy `/admin/org/:slug[...]` bookmarks onto slugless `/admin[...]` paths. */
+export function normalizeAdminReturnTo(path: string): string | null {
+  if (!path.startsWith("/admin")) return null;
+  const legacy = path.match(/^\/admin\/org\/[^/]+(\/.*)?$/);
+  if (legacy) {
+    const rest = legacy[1] ?? "";
+    return rest === "" ? "/admin" : `/admin${rest}`;
+  }
+  return path;
 }
 
 function trimTrailingSlash(url: string): string {
diff --git a/hub/test/integration/admin-auth.test.ts b/hub/test/integration/admin-auth.test.ts
index 695162f..c0ad846 100644
--- a/hub/test/integration/admin-auth.test.ts
+++ b/hub/test/integration/admin-auth.test.ts
@@ -170,7 +170,7 @@ describe("admin auth + org API guards", () => {
     try {
       const res = await app.inject({
         method: "GET",
-        url: "/auth/feishu?returnTo=/admin/org/test-default",
+        url: "/auth/feishu?returnTo=/admin",
       });
       expect(res.statusCode).toBe(302);
       const location = res.headers.location;
@@ -233,7 +233,7 @@ describe("admin auth + org API guards", () => {
     try {
       const nonce = "nonce-test-1";
       const state = signOAuthState(
-        { nonce, returnTo: "/admin/org/test-default" },
+        { nonce, returnTo: "/admin" },
         SESSION_SECRET,
       );
       const res = await app.inject({
@@ -242,7 +242,7 @@ describe("admin auth + org API guards", () => {
         headers: { cookie: `${OAUTH_STATE_COOKIE_NAME}=${nonce}` },
       });
       expect(res.statusCode).toBe(302);
-      expect(res.headers.location).toBe("/admin/org/test-default");
+      expect(res.headers.location).toBe("/admin");
       expect(JSON.stringify(res.headers["set-cookie"])).toContain("cph_session=");
 
       const user = await prisma.user.findUnique({ where: { feishuOpenId: "ou_new" } });
@@ -293,7 +293,7 @@ describe("admin auth + org API guards", () => {
     try {
       const start = await app.inject({
         method: "GET",
-        url: "/auth/feishu/test-default?returnTo=/admin/org/test-default/settings",
+        url: "/auth/feishu/test-default?returnTo=/admin/settings",
       });
       expect(start.statusCode).toBe(302);
       const authorize = new URL(String(start.headers.location));
@@ -308,7 +308,7 @@ describe("admin auth + org API guards", () => {
         headers: { cookie: nonceCookie },
       });
       expect(callback.statusCode).toBe(302);
-      expect(callback.headers.location).toBe("/admin/org/test-default/settings");
+      expect(callback.headers.location).toBe("/admin/settings");
       const sessionCookie = cookiePair(callback.headers["set-cookie"], "cph_session");
       const me = await app.inject({ method: "GET", url: "/api/me", headers: { cookie: sessionCookie } });
       expect(me.statusCode).toBe(200);
@@ -346,7 +346,7 @@ describe("admin auth + org API guards", () => {
         headers: { cookie: cookiePair(defaultStart.headers["set-cookie"], OAUTH_STATE_COOKIE_NAME) },
       });
       expect(defaultCallback.statusCode).toBe(302);
-      expect(defaultCallback.headers.location).toBe("/admin/org/test-default");
+      expect(defaultCallback.headers.location).toBe("/admin");
 
       await connections.disable({ organizationId: DEFAULT_ORG_ID, actorUserId: "scoped-owner" });
       const revoked = await app.inject({ method: "GET", url: "/api/me", headers: { cookie: sessionCookie } });
diff --git a/hub/test/unit/session.test.ts b/hub/test/unit/session.test.ts
index 9baa0b8..8547a51 100644
--- a/hub/test/unit/session.test.ts
+++ b/hub/test/unit/session.test.ts
@@ -68,14 +68,14 @@ describe("session cookie signing", () => {
 describe("oauth state signing", () => {
   it("round-trips state with returnTo", () => {
     const token = signOAuthState(
-      { nonce: "abc", returnTo: "/admin/org/acme" },
+      { nonce: "abc", returnTo: "/admin" },
       SECRET,
       600,
       1_700_000_000,
     );
     expect(verifyOAuthState(token, SECRET, 1_700_000_100)).toEqual({
       nonce: "abc",
-      returnTo: "/admin/org/acme",
+      returnTo: "/admin",
       exp: 1_700_000_600,
     });
   });
@@ -83,13 +83,13 @@ describe("oauth state signing", () => {
   it("binds state to an Organization and connection as one inseparable scope", () => {
     const token = signOAuthState({
       nonce: "scoped",
-      returnTo: "/admin/org/acme",
+      returnTo: "/admin",
       organizationId: "org-acme",
       connectionId: "connection-acme",
     }, SECRET, 600, 1_700_000_000);
     expect(verifyOAuthState(token, SECRET, 1_700_000_100)).toEqual({
       nonce: "scoped",
-      returnTo: "/admin/org/acme",
+      returnTo: "/admin",
       organizationId: "org-acme",
       connectionId: "connection-acme",
       exp: 1_700_000_600,
@@ -98,8 +98,11 @@ describe("oauth state signing", () => {
 });
 
 describe("sanitizeReturnTo", () => {
-  it("allows admin paths", () => {
-    expect(sanitizeReturnTo("/admin/org/acme")).toBe("/admin/org/acme");
+  it("allows admin paths and rewrites legacy org slug prefixes", () => {
+    expect(sanitizeReturnTo("/admin")).toBe("/admin");
+    expect(sanitizeReturnTo("/admin/usage")).toBe("/admin/usage");
+    expect(sanitizeReturnTo("/admin/org/acme")).toBe("/admin");
+    expect(sanitizeReturnTo("/admin/org/acme/usage")).toBe("/admin/usage");
   });
 
   it("blocks open redirects", () => {
diff --git a/hub/test/unit/silo-rate-limit.test.ts b/hub/test/unit/silo-rate-limit.test.ts
index 37d4edd..97cd8f4 100644
--- a/hub/test/unit/silo-rate-limit.test.ts
+++ b/hub/test/unit/silo-rate-limit.test.ts
@@ -23,6 +23,7 @@ describe("isSiloHttpRateLimitExempt", () => {
     expect(isSiloHttpRateLimitExempt("/favicon.svg")).toBe(true);
     expect(isSiloHttpRateLimitExempt("/robots.txt")).toBe(true);
     expect(isSiloHttpRateLimitExempt("/admin")).toBe(true);
+    expect(isSiloHttpRateLimitExempt("/admin/members")).toBe(true);
     expect(isSiloHttpRateLimitExempt("/admin/org/para-26071100/members")).toBe(true);
   });