Does OpenUI support (or plan to support) incremental updates to individual components?

[pluiez]

Hi team! 👋 Love what you're building with OpenUI. I had a question about a potential feature: A2UI allows updating specific components without regenerating the entire UI:

• Each component has a unique ID
• Send a component definition with an existing ID → updates that component
• Send new IDs → adds components
• Remove IDs from parent's children → deletes components

Current OpenUI behavior

From reading the source, OpenUI's StreamParser accumulates text and rebuilds the full AST tree on every chunk via buildResult(). The Renderer receives the complete response string and re-parses the entire tree each time. There's no mechanism to patch a single component in-place.

Use case

For long-lived interactive UIs (dashboards, multi-step forms, etc.), being able to update a single component without regenerating the full OpenUI Lang output would reduce token usage and improve responsiveness.

Question

Is this something on the roadmap, or is the current full-reparse design intentional for OpenUI's target use cases?

[Aditya-thesys]

Hi @pluiez, thanks for trying OpenUI out.

Regarding patch updates, yes it is on the roadmap and will most likely be part of next week’s dashboard release along with more features.

We’re actively working on this, here #385 (WIP, would love your feedback).

[pluiez]

Thanks for the quick response! I'll take a look at #385 and leave any feedback there. Looking forward to the release.