Steve Sewell's open-source TypeScript framework shares actions, data and application state between an AI agent and five other access surfaces: a visual interface, HTTP, command-line, MCP and A2A.
By [Ryan Merket](https://runtimewire.com/author/ryan-merket)
· Published
Primary source: [X](https://x.com/Steve8708/status/2110401500044472729)
Why it matters #
Builder.io is making the case that agent features should share an application's actions and state with its human-facing interface. The open-source release could spread that architecture while drawing developers toward Builder.io's hosted workflow; adoption and production reliability remain unproven.
Builder.io opened its Agent-Native framework in beta on October 14th, giving developers a way to build applications where people and AI agents use the same actions, data and application state. Co-founder and CEO Steve Sewell (@Steve8708) introduced the release in an X thread, describing a visual interface that works alongside agent chat rather than leaving users to manage a task through text alone.