Struct Features 

pub struct Features {
    pub version: u32,
    pub task_kind: TaskKind,
    pub language: Option<String>,
    pub agent: Option<String>,
    pub subagent: Option<String>,
    pub prompt_token_bucket: u32,
    pub tool_count: u32,
    pub has_images: bool,
    pub repo_fingerprint: Option<String>,
    pub session_failure_count: u32,
    pub hour_bucket: u8,
}

The per-request feature vector (§9.2).

Rolling per-bucket statistics (e.g. prior_rung_clearance) are intentionally not here — they live in the trace store, not the deterministic per-request contract.

Fields

version: u32

Feature-extraction contract version (features@vN).

task_kind: TaskKind

Coarse task classification.

language: Option<String>

Programming language, when known (lowercased identifier, e.g. "rust").

agent: Option<String>

Calling agent identity, when known (e.g. "compass").

subagent: Option<String>

Calling subagent identity, when known (e.g. "test-runner").

prompt_token_bucket: u32

Coarse bucket of the prompt’s token count (see token_bucket) — never the raw count.

tool_count: u32

Number of tools/functions offered in the request.

has_images: bool

Whether the request carried image content.

repo_fingerprint: Option<String>

Salted, truncated hash of the repository identity (see repo_fingerprint) — never a path.

session_failure_count: u32

How many attempts have already failed in this session (drives session promotion, §8.4).

hour_bucket: u8

Hour-of-day bucket in UTC, 0..=23 (see hour_bucket).

Implementations

impl Features

pub fn new(task_kind: TaskKind) -> Self

A minimal vector stamped with the current FEATURE_VERSION and the given task kind.

Trait Implementations

impl Clone for Features

fn clone(&self) -> Features

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Features

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Features

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Features

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Features

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Features