> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rixxui.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Tolerant recovery

> Quarantine malformed model output without weakening validation or discarding later valid statements.

Recovery happens at physical-line boundaries. A malformed line, invalid prop,
unknown component, or unresolved reference produces a diagnostic and can be
dropped while later independent statements continue.

```rui theme={null}
root = Answer(children=[title, body])
title = Heading(text="Recovered answer", level=1)
broken = Text(text="This line never closes"
body = RichText(format="markdown", text="Later **valid** content survives.")
```

Recovery is deliberately bounded. It does not reinterpret arbitrary text, loosen
a JSON Schema, enable an unknown action, or commit a graph with a missing root,
unresolved reachable reference, cycle, or exceeded resource budget.

## Terminal failures

Use a trusted fallback and observe typed diagnostics:

```tsx theme={null}
<RUIRenderer
  streamStatus={status}
  fallback={({ diagnostics, status }) => (
    <FallbackView state={status} diagnosticCount={diagnostics.length} />
  )}
  onError={(event) => logDiagnosticCodes(event)}
>
  {source}
</RUIRenderer>
```

Do not display raw provider errors, prompts, credentials, or sensitive source in
a fallback. To retry from a clean compiler state, increment `retryKey` and begin
with the new attempt's accumulated source.

See the [language specification](/spec/language) for exact grammar and commit
rules.