diff --git a/src/server/routes.ts b/src/server/routes.ts
index 99b370d..91778eb 100644
--- a/src/server/routes.ts
+++ b/src/server/routes.ts
@@ -36,6 +36,16 @@ function wantsHtml(request: { headers: { accept?: string } }): boolean {
 }
 
 export async function registerRoutes(app: FastifyInstance, cwd: string): Promise<void> {
+  // Never let a browser cache a hub HTML page — otherwise a stale board/team
+  // page keeps showing old markup and doesn't reflect live task/agent state.
+  app.addHook('onSend', async (_request, reply, payload) => {
+    const ct = reply.getHeader('content-type');
+    if (typeof ct === 'string' && ct.includes('text/html')) {
+      reply.header('Cache-Control', 'no-store, must-revalidate');
+    }
+    return payload;
+  });
+
   // Static, self-contained Trello-like board. Polls /tasks, /handoffs and
   // /decisions on the same origin; no build step, no deps. Cached once — the
   // markup is constant, only the data it fetches changes.