Struct ContextRequest 

pub struct ContextRequest<'a> {
    pub point: SessionPoint,
    pub turn_id: TypedId<TurnMarker>,
    pub iteration: usize,
    pub model: &'a ModelSpec,
    pub token_limit: Option<usize>,
    pub messages: &'a [Message],
    pub events: &'a dyn EventStore,
}

Everything a context policy needs to shape one model request.

Fields

point: SessionPoint

Immutable durable head whose history is being assembled.

turn_id: TypedId<TurnMarker>

Turn about to invoke the model.

iteration: usize

One-based reason iteration within the turn.

model: &'a ModelSpec

Effective model after per-turn overrides.

token_limit: Option<usize>

Optional input ceiling configured by the application.

messages: &'a [Message]

Complete replayed history at point.

events: &'a dyn EventStore

Paged access to the authoritative stream for policies that maintain their own summaries, indexes, or historical windows.