Struct GroupingOptions 

pub struct GroupingOptions<'a, C: GroupingCache> {
    pub backend: &'a dyn LlmBackend,
    pub cache: &'a C,
    pub progress: Option<&'a (dyn Fn(Progress) + Send + Sync)>,
}

Fields

backend: &'a dyn LlmBackend

The backend, always injected. dyn because config picks which command to run — the one runtime-open seam in this stage (ADR 0016, 0020).

Cancellation is a property of the backend the caller built (CommandBackend::with_cancel), not of the pipeline: killing an in-flight subprocess was never a pipeline concern.

cache: &'a C

Where groupings are pinned. Disabling is a state of the cache (FsGroupingCache::disabled()), not an Option here.

progress: Option<&'a (dyn Fn(Progress) + Send + Sync)>

Stage notifications for renderers that show progress while the pipeline runs (the TUI’s splash screen). None reports nothing.