diff --git a/dashboard/package-lock.json b/dashboard/package-lock.json
index bfa7e22..c77c214 100644
--- a/dashboard/package-lock.json
+++ b/dashboard/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "picloud-dashboard",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "picloud-dashboard",
-      "version": "0.5.0",
+      "version": "0.5.1",
       "dependencies": {
         "@codemirror/autocomplete": "^6.20.2",
         "@codemirror/commands": "^6.10.3",
@@ -1275,7 +1275,6 @@
       "integrity": "sha512-mQjlkNo+rJvpln7V2IGY2j99BqhcFbS4UN0AQNKNYfhBAFZTuCDAdW3a1sgf330mvtNvsBXn3HpAhcmvdJTcIQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@standard-schema/spec": "^1.0.0",
         "@sveltejs/acorn-typescript": "^1.0.5",
@@ -1318,7 +1317,6 @@
       "integrity": "sha512-Y1Cs7hhTc+a5E9Va/xwKlAJoariQyHY+5zBgCZg4PFWNYQ1nMN9sjK1zhw1gK69DuqVP++sht/1GZg1aRwmAXQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@sveltejs/vite-plugin-svelte-inspector": "^4.0.1",
         "debug": "^4.4.1",
@@ -1398,7 +1396,6 @@
       "integrity": "sha512-dyh/xO2Fh5bYrfWaaqGrRQQGkNdmYw6AmaAUvYeUMNTWQtvb796ikLdmTchRmOlOiIJ1TDXfWgVx1QkUlQ6Hew==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "undici-types": "~6.21.0"
       }
@@ -1455,7 +1452,6 @@
       "integrity": "sha512-zORHqO/tuhxY1zWuTvMUqddRxpiFJ72xVfcNoWpqdLjs6lfPbuQBJuW4pk+49/uBMy7Ssr4bzgjiKmmDB1UbZQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/scope-manager": "8.59.4",
         "@typescript-eslint/types": "8.59.4",
@@ -1563,7 +1559,6 @@
       "integrity": "sha512-F1o7WJcCq+bc8dwcO/YsSEOudAH8RDtaOhM6wcAQhcUsFhnWQl81JKy48q1hoxAU0qrzM89+31GYh1515Zde3Q==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
@@ -1815,7 +1810,6 @@
       "integrity": "sha512-UVJyE9MttOsBQIDKw1skb9nAwQuR5wuGD3+82K6JgJlm/Y+KI92oNsMNGZCYdDsVtRHSak0pcV5Dno5+4jh9sw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -2217,7 +2211,6 @@
       "integrity": "sha512-XoMjdBOwe/esVgEvLmNsD3IRHkm7fbKIUGvrleloJXUZgDHig2IPWNniv+GwjyJXzuNqVjlr5+4yVUZjycJwfQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.8.0",
         "@eslint-community/regexpp": "^4.12.1",
@@ -3010,7 +3003,6 @@
       "integrity": "sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -3038,7 +3030,6 @@
         }
       ],
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "nanoid": "^3.3.12",
         "picocolors": "^1.1.1",
@@ -3172,7 +3163,6 @@
       "integrity": "sha512-7igPTM53cGHMW8xWuVTydi2KO233VFiTNyF5hLJqpilHfmn8C8gPf+PS7dUT64YcXFbiMGZxS9pCSxL/Dxm/Jw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "prettier": "bin/prettier.cjs"
       },
@@ -3433,7 +3423,6 @@
       "integrity": "sha512-fTjjT8cHLDwigcu2j3pv7Jq04LklXevPB8uBgyHNiTXv+RMNvVnrjS4UEYrLMkhuq1vpCodHjiW+z/95SDs/fg==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@jridgewell/remapping": "^2.3.4",
         "@jridgewell/sourcemap-codec": "^1.5.0",
@@ -3614,7 +3603,6 @@
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -3677,7 +3665,6 @@
       "integrity": "sha512-2N/55r4JDJ4gdrCvGgINMy+HH3iRpNIz8K6SFwVsA+JbQScLiC+clmAxBgwiSPgcG9U15QmvqCGWzMbqda5zGQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "esbuild": "^0.25.0",
         "fdir": "^6.4.4",
diff --git a/dashboard/src/lib/route-utils.ts b/dashboard/src/lib/route-utils.ts
index a015b11..3c45b31 100644
--- a/dashboard/src/lib/route-utils.ts
+++ b/dashboard/src/lib/route-utils.ts
@@ -1,4 +1,4 @@
-import type { HostKind, PathKind } from './api';
+import type { AppDomain, HostKind, PathKind } from './api';
 
 /** Guess a path kind from the literal user input. The dashboard pre-fills
  *  the kind selector but the user can override (the backend trusts the
@@ -30,3 +30,97 @@ export function pathKindMismatchWarning(raw: string, kind: PathKind): string | n
 				: 'this looks like a literal path';
 	return `Selected kind is "${kind}", but ${hint}. Routing will use the selected kind.`;
 }
+
+/** Parse the user's free-text host input into the (kind, stored host)
+ *  pair the API expects. Mirrors the dashboard's pre-existing storage
+ *  convention: wildcard route hosts are stored as the bare suffix
+ *  (`*.foo.com` → `foo.com`); display-time formatting re-adds the `*.`. */
+export interface ParsedHostInput {
+	kind: HostKind;
+	/** What gets sent in the API payload as `host`. */
+	host: string;
+	/** Canonical display form, for chips/labels. */
+	display: string;
+}
+
+export function parseHostInput(raw: string): ParsedHostInput {
+	const trimmed = raw.trim();
+	if (trimmed === '' || trimmed === '*') {
+		return { kind: 'any', host: '', display: '*' };
+	}
+	if (trimmed.startsWith('*.')) {
+		const suffix = trimmed.slice(2);
+		return { kind: 'wildcard', host: suffix, display: `*.${suffix}` };
+	}
+	return { kind: 'strict', host: trimmed, display: trimmed };
+}
+
+/** Frontend mirror of `validate_route_host_against_app` in
+ *  crates/manager-core/src/route_admin.rs. Lets us surface a live
+ *  warning instead of waiting for a 422. The server runs the same
+ *  check on submit — this is purely an early signal. */
+export type HostClaimCheck =
+	| { ok: true; matched: string }
+	| { ok: false; reason: string };
+
+export function checkHostAgainstClaims(
+	parsed: ParsedHostInput,
+	claims: AppDomain[]
+): HostClaimCheck {
+	if (parsed.kind === 'any') return { ok: true, matched: '*' };
+	if (claims.length === 0) {
+		return {
+			ok: false,
+			reason: 'this app has no domain claims yet — add one in the app’s Domains tab'
+		};
+	}
+	const hostLower = parsed.host.toLowerCase();
+	for (const claim of claims) {
+		const claimLower = claim.pattern.toLowerCase();
+		const claimSuffix = claimLower.split('.').slice(1).join('.');
+		if (parsed.kind === 'strict') {
+			if (claim.shape === 'exact' && hostLower === claimLower) {
+				return { ok: true, matched: claim.pattern };
+			}
+			if (
+				(claim.shape === 'wildcard' || claim.shape === 'parameterized') &&
+				claimSuffix &&
+				hostLower.endsWith(`.${claimSuffix}`)
+			) {
+				return { ok: true, matched: claim.pattern };
+			}
+		} else {
+			// wildcard route
+			if (
+				(claim.shape === 'wildcard' || claim.shape === 'parameterized') &&
+				claimSuffix === hostLower
+			) {
+				return { ok: true, matched: claim.pattern };
+			}
+		}
+	}
+	return {
+		ok: false,
+		reason: `${parsed.display} is not covered by any of this app’s claims`
+	};
+}
+
+/** Suggestion strings for the host input's <datalist>. We always
+ *  include the wildcard `*` (any host) as the first option, then the
+ *  app's claims rendered in the form the route input expects. */
+export function hostSuggestions(claims: AppDomain[]): string[] {
+	const items: string[] = ['*'];
+	for (const claim of claims) {
+		if (claim.shape === 'exact') {
+			items.push(claim.pattern);
+		} else {
+			// Both wildcard and parameterized claims are usable as a
+			// wildcard route. Render as `*.suffix` — we can't preserve
+			// the {param} binding name through the current route form.
+			const suffix = claim.pattern.split('.').slice(1).join('.');
+			if (suffix) items.push(`*.${suffix}`);
+		}
+	}
+	// Dedupe while preserving order.
+	return [...new Set(items)];
+}
diff --git a/dashboard/src/lib/slugify.ts b/dashboard/src/lib/slugify.ts
new file mode 100644
index 0000000..da4d558
--- /dev/null
+++ b/dashboard/src/lib/slugify.ts
@@ -0,0 +1,30 @@
+// Slug normalization for app slugs, mirrored against the backend's
+// validate_slug rules in crates/manager-core/src/apps_api.rs:
+//   - regex: ^[a-z0-9][a-z0-9-]{0,62}$
+//   - 1..=63 chars, lowercase ascii alphanumerics + `-`
+//   - must start with [a-z0-9]
+//   - reserved words are enforced server-side only
+//
+// Normalization rules are GitLab-style (close to `Babosa::Latin#to_slug`):
+//   1. NFKD-decompose Unicode and drop combining marks (é → e, ñ → n,
+//      ü → u, etc.).
+//   2. ß → ss (a single common case the strip-marks pass misses).
+//   3. Lowercase.
+//   4. Replace any run of non-[a-z0-9] with a single `-`.
+//   5. Trim leading/trailing `-`.
+//   6. Truncate to 63 chars.
+
+export const SLUG_MAX = 63;
+
+export function slugify(input: string): string {
+	if (!input) return '';
+	let s = input.normalize('NFKD').replace(/[\u0300-\u036f]/g, '');
+	s = s.toLowerCase().replace(/ß/g, 'ss');
+	s = s.replace(/[^a-z0-9]+/g, '-');
+	s = s.replace(/^-+|-+$/g, '');
+	if (s.length > SLUG_MAX) {
+		// Truncate, then re-trim in case the cut landed on a `-`.
+		s = s.slice(0, SLUG_MAX).replace(/-+$/g, '');
+	}
+	return s;
+}
diff --git a/dashboard/src/routes/apps/+page.svelte b/dashboard/src/routes/apps/+page.svelte
index a553210..cbfd75a 100644
--- a/dashboard/src/routes/apps/+page.svelte
+++ b/dashboard/src/routes/apps/+page.svelte
@@ -1,6 +1,7 @@
 <script lang="ts">
 	import { base } from '$app/paths';
 	import { api, ApiError, type App } from '$lib/api';
+	import { slugify, SLUG_MAX } from '$lib/slugify';
 
 	let apps = $state<App[] | null>(null);
 	let listError = $state<string | null>(null);
@@ -10,10 +11,34 @@
 	let createSlug = $state('');
 	let createName = $state('');
 	let createDescription = $state('');
+	// Auto-derive slug from name until the user takes manual control of
+	// the slug field. Clearing the slug input releases the lock so the
+	// auto-derive resumes — matches the GitLab project-create UX.
+	let slugTouched = $state(false);
 	let creating = $state(false);
 	let createError = $state<string | null>(null);
 	let createHistoricalConflict = $state<App | null>(null);
 
+	function onNameInput(event: Event) {
+		const value = (event.target as HTMLInputElement).value;
+		createName = value;
+		if (!slugTouched) {
+			createSlug = slugify(value);
+		}
+	}
+
+	function onSlugInput(event: Event) {
+		const raw = (event.target as HTMLInputElement).value;
+		const normalized = slugify(raw);
+		createSlug = normalized;
+		// Re-sync the input element so a paste of "Hello World!" shows
+		// "hello-world" immediately, not the raw value.
+		if (raw !== normalized) {
+			(event.target as HTMLInputElement).value = normalized;
+		}
+		slugTouched = normalized.length > 0;
+	}
+
 	async function load() {
 		loading = true;
 		listError = null;
@@ -33,6 +58,7 @@
 		createDescription = '';
 		createError = null;
 		createHistoricalConflict = null;
+		slugTouched = false;
 	}
 
 	async function submitCreate(event: Event, forceTakeover = false) {
@@ -88,17 +114,28 @@
 		<form class="create-form" onsubmit={(e) => submitCreate(e)}>
 			<div class="row">
 				<label>
-					<span>Slug</span>
+					<span>Name</span>
 					<input
-						bind:value={createSlug}
+						value={createName}
+						oninput={onNameInput}
 						required
-						pattern="[a-z0-9][a-z0-9-]*"
-						placeholder="my-app"
+						placeholder="My App"
 					/>
 				</label>
 				<label>
-					<span>Name</span>
-					<input bind:value={createName} required placeholder="My App" />
+					<span>Slug</span>
+					<input
+						value={createSlug}
+						oninput={onSlugInput}
+						required
+						pattern="[a-z0-9][a-z0-9-]*"
+						maxlength={SLUG_MAX}
+						placeholder="my-app"
+						autocomplete="off"
+						autocapitalize="off"
+						autocorrect="off"
+						spellcheck="false"
+					/>
 				</label>
 			</div>
 			<label>
diff --git a/dashboard/src/routes/scripts/[id]/+page.svelte b/dashboard/src/routes/scripts/[id]/+page.svelte
index 207e320..640fcd5 100644
--- a/dashboard/src/routes/scripts/[id]/+page.svelte
+++ b/dashboard/src/routes/scripts/[id]/+page.svelte
@@ -5,6 +5,7 @@
 	import {
 		api,
 		ApiError,
+		type AppDomain,
 		type ExecutionLog,
 		type Route,
 		type RouteInput,
@@ -12,7 +13,13 @@
 		type VersionInfo
 	} from '$lib/api';
 	import { logLevelColor, statusColor } from '$lib/styles';
-	import { guessHostKind, guessPathKind, pathKindMismatchWarning } from '$lib/route-utils';
+	import {
+		checkHostAgainstClaims,
+		guessPathKind,
+		hostSuggestions,
+		parseHostInput,
+		pathKindMismatchWarning
+	} from '$lib/route-utils';
 	import CodeEditor from '$lib/CodeEditor.svelte';
 	import { format as formatRhai } from '$lib/rhai';
 
@@ -39,6 +46,7 @@
 	let info = $state<VersionInfo | null>(null);
 
 	let appSlug = $state<string | null>(null);
+	let appDomains = $state<AppDomain[]>([]);
 
 	async function loadScript() {
 		scriptLoading = true;
@@ -50,14 +58,23 @@
 			editableDescription = script.description ?? '';
 			editableTimeout = script.timeout_seconds;
 			editableSandbox = { ...(script.sandbox ?? {}) };
-			// Resolve the owning app's slug for the breadcrumb. Failure
-			// is non-fatal — the page works without it.
+			// Resolve the owning app's slug for the breadcrumb and its
+			// domain claims for the route form's suggestions + live
+			// validation. Both are non-fatal — the page works without
+			// them.
+			const appId = script.app_id;
 			void api.apps
-				.get(script.app_id)
+				.get(appId)
 				.then((a) => {
 					appSlug = a.slug;
 				})
 				.catch(() => {});
+			void api.domains
+				.listForApp(appId)
+				.then((d) => {
+					appDomains = d;
+				})
+				.catch(() => {});
 		} catch (e) {
 			scriptError = e instanceof Error ? e.message : String(e);
 			script = null;
@@ -175,12 +192,14 @@
 	let routesLoading = $state(true);
 
 	let showAddRoute = $state(false);
-	let newRoutePath = $state('');
+	let newRoutePath = $state('/');
 	let newRoutePathKind = $state<'exact' | 'prefix' | 'param'>('exact');
-	let newRouteHost = $state('');
-	let newRouteHostKind = $state<'any' | 'strict' | 'wildcard'>('any');
+	// Host input is free-form; the kind is derived from what the user
+	// typed (see `parsedHost` below). Default `*` = Any, matching the
+	// canonical display form for an unrestricted host.
+	let newRouteHost = $state('*');
 	let newRouteMethod = $state('');
-	let routeKindAutoUpdate = $state(true);
+	let pathKindAutoUpdate = $state(true);
 	let creatingRoute = $state(false);
 	let createRouteError = $state<string | null>(null);
 
@@ -188,17 +207,17 @@
 	let previewMethod = $state('GET');
 	let previewResult = $state<string | null>(null);
 
-	// Auto-update kind selectors as the user types.
+	// Auto-update the path-kind selector as the user types.
 	$effect(() => {
-		if (routeKindAutoUpdate) {
+		if (pathKindAutoUpdate) {
 			newRoutePathKind = guessPathKind(newRoutePath);
 		}
 	});
-	$effect(() => {
-		if (routeKindAutoUpdate) {
-			newRouteHostKind = guessHostKind(newRouteHost);
-		}
-	});
+
+	let parsedHost = $derived(parseHostInput(newRouteHost));
+	let hostCheck = $derived(checkHostAgainstClaims(parsedHost, appDomains));
+	let hostDatalistId = 'route-host-suggestions';
+	let suggestions = $derived(hostSuggestions(appDomains));
 
 	let pathKindWarning = $derived(
 		newRoutePath.trim() ? pathKindMismatchWarning(newRoutePath, newRoutePathKind) : null
@@ -222,18 +241,18 @@
 		createRouteError = null;
 		try {
 			const input: RouteInput = {
-				host_kind: newRouteHostKind,
-				host: newRouteHostKind === 'any' ? '' : newRouteHost.trim(),
+				host_kind: parsedHost.kind,
+				host: parsedHost.host,
 				path_kind: newRoutePathKind,
 				path: newRoutePath.trim(),
 				method: newRouteMethod.trim() || null
 			};
 			await api.routes.create(id, input);
 			showAddRoute = false;
-			newRoutePath = '';
-			newRouteHost = '';
+			newRoutePath = '/';
+			newRouteHost = '*';
 			newRouteMethod = '';
-			routeKindAutoUpdate = true;
+			pathKindAutoUpdate = true;
 			await loadRoutes();
 		} catch (e) {
 			if (e instanceof ApiError && e.status === 409) {
@@ -502,7 +521,7 @@
 							<span>Path</span>
 							<input
 								bind:value={newRoutePath}
-								oninput={() => (routeKindAutoUpdate = true)}
+								oninput={() => (pathKindAutoUpdate = true)}
 								placeholder="/greet, /greet/:name, /webhooks/*"
 								required
 								autocomplete="off"
@@ -513,7 +532,7 @@
 								<span>Path kind</span>
 								<select
 									bind:value={newRoutePathKind}
-									onchange={() => (routeKindAutoUpdate = false)}
+									onchange={() => (pathKindAutoUpdate = false)}
 								>
 									<option value="exact">exact</option>
 									<option value="param">param</option>
@@ -532,31 +551,43 @@
 								</select>
 							</label>
 						</div>
-						<div class="row">
-							<label>
-								<span>Host kind</span>
-								<select
-									bind:value={newRouteHostKind}
-									onchange={() => (routeKindAutoUpdate = false)}
-								>
-									<option value="any">ANY</option>
-									<option value="strict">strict</option>
-									<option value="wildcard">wildcard</option>
-								</select>
-							</label>
-							<label class:disabled={newRouteHostKind === 'any'}>
-								<span>Host</span>
-								<input
-									bind:value={newRouteHost}
-									oninput={() => (routeKindAutoUpdate = true)}
-									disabled={newRouteHostKind === 'any'}
-									placeholder={newRouteHostKind === 'wildcard'
-										? '*.example.com'
-										: 'sub.example.com'}
-									autocomplete="off"
-								/>
-							</label>
-						</div>
+						<label class="full">
+							<span class="host-label">
+								Host
+								<span class="kind-chip kind-{parsedHost.kind}">
+									{parsedHost.kind}
+								</span>
+							</span>
+							<input
+								bind:value={newRouteHost}
+								placeholder="*  ·  app.example.com  ·  *.example.com"
+								list={hostDatalistId}
+								autocomplete="off"
+								autocapitalize="off"
+								autocorrect="off"
+								spellcheck="false"
+							/>
+							<datalist id={hostDatalistId}>
+								{#each suggestions as s (s)}
+									<option value={s}></option>
+								{/each}
+							</datalist>
+							<small class="muted">
+								<code>*</code> = any host claimed by this app ·
+								<code>*.foo.com</code> = wildcard · <code>foo.com</code> =
+								strict
+							</small>
+						</label>
+						{#if !hostCheck.ok}
+							<div class="warning inline">
+								{hostCheck.reason}.
+								{#if appDomains.length > 0}
+									Claims:
+									{#each appDomains as d, i (d.id)}<code>{d.pattern}</code>{#if i < appDomains.length - 1},
+										{/if}{/each}
+								{/if}
+							</div>
+						{/if}
 						{#if pathKindWarning}
 							<div class="warning inline">{pathKindWarning}</div>
 						{/if}
@@ -951,9 +982,6 @@
 		font-size: 0.85rem;
 		color: #cbd5e1;
 	}
-	label.disabled {
-		opacity: 0.6;
-	}
 	label.full {
 		width: 100%;
 	}
@@ -1070,6 +1098,31 @@
 		background: #581c87;
 		color: #e9d5ff;
 	}
+	.host-label {
+		display: flex;
+		align-items: center;
+		gap: 0.5rem;
+	}
+	.kind-chip {
+		font-size: 0.65rem;
+		font-weight: 700;
+		text-transform: uppercase;
+		padding: 0.1rem 0.4rem;
+		border-radius: 0.25rem;
+		letter-spacing: 0.03em;
+	}
+	.kind-chip.kind-any {
+		background: #1e293b;
+		color: #cbd5e1;
+	}
+	.kind-chip.kind-strict {
+		background: #14532d;
+		color: #bbf7d0;
+	}
+	.kind-chip.kind-wildcard {
+		background: #1e3a8a;
+		color: #bfdbfe;
+	}
 	.route-row .method {
 		color: #fbbf24;
 		font-weight: 700;