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Introduction

Tessera Agent's final Generative UI architecture, proven first through governed data-agent workflows.

Tessera Agent is the product documented in this site. The current repository is its complete Generative UI architecture and proof ground: the protocol, compiler, runtime, authority boundary, client controller, React surface, data components, fixtures, and evaluation gates all live here until the data-agent experience is proven end to end.

The framework-neutral packages use the @open-generative/* namespace because that is the future extraction boundary. It is not a second product in this repository and it does not change the current acceptance target. A standalone Open Generative project is created only after Tessera Agent passes every proof gate.

One render chain

trusted SurfaceEventStream
-> SurfaceController
-> GenerativeSurface
-> exact RendererRegistry

The model proposes declarative nodes. It never emits JSX, HTML, CSS, SQL, tool names, credentials, or executable formulas. The Host owns data, identity, validation, authority, state, effects, persistence, commit, and rendering.

Current scope

The public UI catalog is intentionally focused: five analytical composition Contracts plus one governed data.chart Contract with 17 named recipes. Each recipe has its own information structure and visual treatment while sharing the same trusted resource, validation, and rendering chain.