# everruns-openui
> OpenUI component library and prompt generator for Everruns generative UI.
[](https://crates.io/crates/everruns-openui)
[](https://docs.rs/everruns-openui)
[](https://github.com/everruns/everruns/blob/main/LICENSE)
`everruns-openui` builds the system-prompt text that teaches an LLM to produce
`openui` fenced blocks — generative UI that Everruns clients that understand
OpenUI Lang can render directly in a conversation. It ships a static component library
and lets you extend the prompt with your own rules and examples.
Part of the [Everruns](https://everruns.com) ecosystem — the durable agentic
harness engine for building unstoppable agents. See
[`everruns-a2ui`](https://crates.io/crates/everruns-a2ui) for the JSON-component
variant of generative UI.
## Quick Example
```rust
use everruns_openui::{PromptOptions, default_library, generate_prompt};
let prompt = generate_prompt(
default_library(),
&PromptOptions {
additional_rules: vec!["Prefer compact tables for operational data.".into()],
..PromptOptions::default()
},
);
assert!(prompt.contains("```openui"));
```
## What It Provides
- A static OpenUI component library
- Prompt generation for OpenUI Lang output
- Custom prompt options for extra rules and examples
## Documentation
- [API reference (docs.rs)](https://docs.rs/everruns-openui)
- [Everruns documentation](https://docs.everruns.com)
## License
Licensed under the [MIT License](https://github.com/everruns/everruns/blob/main/LICENSE).