Struct ContextBucket 

pub struct ContextBucket {
    pub task_kind: TaskKind,
    pub prompt_bucket_coarse: u32,
}

The context bucket that keys the bandit’s per-arm statistics.

Coarsened to keep the arm count dense: prompt_bucket_coarse = prompt_token_bucket / 2 halves the bucket resolution (floor(log2(n)) → floor(log2(n)/2) in effect), trading granularity for faster warm-up.

ponytail: the ladder identity is not part of the key — in practice a given (TaskKind, prompt size) routes to the same ladder via the first-match routing rule. Would need to be included if operators run overlapping routes for the same context.

Fields

task_kind: TaskKind

Coarse task classification from the request feature vector.

prompt_bucket_coarse: u32

features.prompt_token_bucket / 2 — halved for denser arms.

Implementations

impl ContextBucket

pub fn from_features(f: &Features) -> Self

Derive a context bucket from a request’s feature vector.

Trait Implementations

impl Clone for ContextBucket

fn clone(&self) -> ContextBucket

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ContextBucket

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ContextBucket

impl Hash for ContextBucket

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ContextBucket

fn eq(&self, other: &ContextBucket) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ContextBucket