Some customers live in Telegram. Some will never open a bot. Subeasy-style dual door: local-first UI, Telegram initData on one path, a normal session on the other, Stars when you are inside the messenger. How I would ship it without forking the product.
Buyers now ask ChatGPT, Perplexity, and Google AI Overviews who to hire. Ranking on Google does not put your name in that answer. What GEO actually is, why a JS-only site is invisible, and what I put on a page so a model can cite it.
A chatbot produces text. An agent calls tools - books a slot, sends an invoice, hits an API. What a ten-person company can bound this month, what must stay behind a human confirm, and how I would wire that in Next.js after this summer’s agent-security news.
Next.js 16.3 went stable on 3 August 2026. Instant Navigations make a server-rendered site feel like an SPA. AGENTS.md, bundled docs, and skills stop coding agents inventing APIs from 2024. What I would actually do on an existing Next.js site this month.