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Generative UI for governed data agents

Tessera Agent

Tessera Agent is proving a final, host-governed Generative UI architecture through real data-analysis workflows.

Read the proofBrowse the catalog
Tessera Agent Studio in dark themeTessera Agent Studio in light theme

The Data Agent proof comes before the standalone framework.

The complete architecture, data.chart Contract, 17 official recipes, fixtures, and proof gates stay in Tessera Agent until the data-agent experience succeeds end to end.

Repository proof

Run the architecture and component gates from source.

The packages and remote registry are not presented as published products. Today, this repository is the executable source of truth.
Current verification path
Install workspace
bun install
Check contracts
bun run check:naming && bun run check:boundaries
Run all gates
bun run typecheck && bun run test && bun run build
Read the proof workflow

Component catalog

Seventeen Data Charts, one governed Contract.

Explore every official recipe through the same trusted Resource, Surface, and Renderer chain.
Live renderer / Steps bars

A selected day, weekly date range, and seven daily goal tracks.

X 0  Y 0
Schema bound
88%
data.chart / Steps bars
DesktopFlexible

Trust boundary

Agents propose. Your runtime decides.

Models propose declarative nodes. The host validates, commits, resolves data and authority, then registered code renders them.Read the security model
  1. 01
    Propose

    The model uses only the frozen, task-scoped Component Contract slice.

  2. 02
    Commit

    The server normalizes, validates, authorizes, and commits the declaration.

  3. 03
    Control

    SurfaceController consumes trusted events and resolves node-scoped values.

  4. 04
    Render

    GenerativeSurface resolves an exact renderer from RendererRegistry.

Composable runtime

One protocol and one renderer chain, proven in Tessera Agent.

@open-generative/protocolCanonical protocol
@open-generative/catalogContracts and trusted runtime
@open-generative/reactReact surface and UI renderers
@open-generative/ai-sdkAI SDK transport boundary
@open-generative/mastraMastra integration boundary
@open-generative/ag-uiAG-UI event boundary

Open source

Inspect the complete Tessera Agent Generative UI proof.

View on GitHubArchitecture