diff --git a/backend/src/server.ts b/backend/src/server.ts
index 7a3ab84..4f75324 100644
--- a/backend/src/server.ts
+++ b/backend/src/server.ts
@@ -15,6 +15,8 @@ import { webhookRoutes } from './modules/webhooks/routes.js';
 import { initCosmosIfNeeded } from './lib/cosmos-init.js';
 import { initDatastore } from './lib/datastore.js';
 import { config } from './lib/config.js';
+import { getAllFlags } from './lib/feature-flags.js';
+import { getBufferedEvents, flushEvents } from './lib/telemetry.js';
 
 import { jwtVerify } from 'jose';
 import type { JwtPayload } from './lib/request-context.js';
@@ -50,4 +52,9 @@ await app.register(householdRoutes, { prefix: '/api' });
 await app.register(sharedTimerRoutes, { prefix: '/api' });
 await app.register(webhookRoutes, { prefix: '/api' });
 
+// ── Diagnostics routes (no auth) ────────────────────────────────
+app.get('/api/diagnostics/flags', async () => getAllFlags());
+app.get('/api/diagnostics/telemetry', async () => ({ events: getBufferedEvents() }));
+app.post('/api/diagnostics/telemetry/flush', async () => ({ flushed: flushEvents().length }));
+
 await startService(app, { port: config.PORT, host: config.HOST });