Agent-Native: Open-Source Framework for Visual Agentic Apps Announced

X postSteve (Builder.io)Announcement

Steve from Builder.io has introduced Agent-Native, an open-source framework currently in beta designed for building agentic applications. It enables users to interact with AI agents through a visual interface, text, or both simultaneously.

Key points

  1. Shared state and actions: Anything accessible to a user in the UI can also be performed by the agent, sharing the same data and application state.
  2. Single capability definition: One action can simultaneously power the visual UI, agent actions, HTTP APIs, CLIs, MCP servers, and A2A endpoints.
  3. Built-in UI toolkit: Offers pre-built blocks including rich text and canvas editors, real-time collaboration, commenting, version history, and settings.
  4. Integrations and A2A delegation: Connects to services like Notion, Linear, and GitHub, while supporting task hand-offs to other agents via A2A.
  5. Flexible models and hosting: Compatible with custom API keys, ChatGPT subscriptions, or local models via Ollama; builds locally and deploys anywhere or runs online via Builder.io.

Why it matters

Standard chat interfaces often fail to provide the clarity and control required for complex workflows. By unifying application state and actions between UI and agents, Agent-Native simplifies creating hybrid interfaces where humans and agents collaborate on the same visual artefacts.

Analysis

Agent-Native addresses a major usability bottleneck in agentic AI: moving beyond text-only conversational interfaces without duplicating business logic. Defining capabilities once for UI, MCP, and API surfaces saves substantial development time. Support for local execution via Ollama and protocols like MCP and A2A reflects a strong focus on modular, open architectures.

Original post

Steve (Builder.io)

@Steve8708 · 14 October 2026

Introducing Agent-Native: an open-source framework for building agentic apps. Agents love walls of text. But humans don't. An agentic app let's you interact with agents through a visual interface. Engage with agents visually, via text, or both at once. Now in beta. t.co/zvaLIYcKOl

2k likes79 replies1.8k bookmarks5.1m views

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More posts in the thread (11)
  1. Anything you can do in the UI, the agent can do too The UI and the agent share the same actions, data, and application state t.co/ZAsTVicbaf
  2. Define a capability once and use it everywhere The same action can power your UI, agent, HTTP API, CLI, MCP server, and A2A endpoint t.co/n2nhsAwwAf
  3. Connect your agent to the apps you already use, like Notion, Linear, and GitHub, and many more. And let it hand work to other agents and agentic apps through A2A. t.co/d3DL9yRRMb
  4. The Agent-Native Toolkit gives you ready-made building blocks for your app. Rich text and canvas editors, real-time collaboration, comments, version history, and app settings. t.co/dIfqbeaeU4
  5. Use any AI model with your own API key, your ChatGPT subscription, or a local model through Ollama. t.co/hvkC3kBDcO
  6. Build locally and deploy anywhere. Or build online with @builderio Read the full announcement: t.co/O4B1Tr0gTP View the source: t.co/lfxqxyi4bf Get started: t.co/y0rTbrfvjJ
  7. @boardyai hell yes
  8. @neb_devv haha I say Builder dot io but people can say whatever they prefer
  9. @khanhnqc 🫶
  10. @JaeTask thanks Jae!
  11. @david_colatti Awesome, great to hear David!
Selected replies (5)
  • @joshsum_ @Steve8708 this is one of the most exciting launches I’ve seen this year immaculate product thinking the entire way 🤯
  • @neb_devv @Steve8708 Love the seamlessness of the idea. Less steps all the way around. Side question do you pronounce it 'Builderio' like 'Mario' or not
  • @khanhnqc @Steve8708 chat is great for asking, but bad for checking. i'd rather see a table or a form, and only talk when i need to. nice to see someone building this
  • @joshsum_ @Steve8708 btw our engineers took a look and are super hyped they’ll be building it into our @morphic_io Core and Workspace products soon :)
  • @boardyai @Steve8708 walls of text were due for a ui

Mentioned links

Summary generated by AI (Gemini 3.8 Flash, 16 October 2026). It may contain errors – the original source is authoritative.

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