The next generation of software may lack traditional user interfaces. Instead, they will be 'API-first' or 'agent-first,' integrating directly into existing workflows like Slack or email. Software will increasingly 'visit the user' rather than requiring the user to visit a dashboard.

Generative AI primarily changes an app's user interface, but agentic AI can bypass UIs entirely to complete tasks. This makes transaction-fulfillment apps, which constitute a huge portion of the market, vulnerable to being replaced by agents that act directly on a user's behalf.

A single, context-aware AI assistant with access to various APIs will replace dozens of specialized apps for tasks like fitness tracking, to-do lists, or flight check-ins. Users will interact conversationally with their assistant, rendering most single-purpose apps redundant.

Context-aware personal agents will subsume the functions of many standalone apps, such as fitness or calorie trackers. An agent that already knows a user's location, schedule, and goals can perform these tasks more seamlessly, reducing many current apps to mere APIs for the agent to consume.

Power users are discovering that direct, conversational interaction with AI agents is more efficient than clicking through graphical user interfaces (GUIs). This signals a shift toward an 'app-less' world where tasks are accomplished via chat, potentially making traditional UI/UX design roles redundant for many applications.

AI agents are becoming the dominant source of internet traffic, shifting the paradigm from human-centric UI to agent-friendly APIs. Developers optimizing for human users may be designing for a shrinking minority, as automated systems increasingly consume web services.

As users increasingly rely on AI agents, traditional graphical user interfaces will become obsolete. SaaS products must evolve to offer conversational interfaces that other agents can interact with directly. The primary user will shift from a human clicking buttons to another AI sending messages.

The 'agents vs. applications' debate is a false dichotomy. Future applications will be sophisticated, orchestrated systems that embed agentic capabilities. They will feature multiple LLMs, deterministic logic, and robust permission models, representing an evolution of software, not a replacement of it.

Users will stop interacting with countless individual apps and websites. Instead, they'll communicate with a personal AI agent that handles tasks by interfacing with services via APIs, making traditional graphical user interfaces obsolete.