Struct GateDef 

pub struct GateDef {
    pub id: String,
    pub cmd: Vec<String>,
    pub timeout_ms: u64,
    pub judge: Option<JudgeDef>,
    pub consistency: Option<ConsistencyDef>,
    pub schema: Option<Value>,
    pub on_abstain: AbstainPolicy,
}

A user-defined gate (SPEC §8.1). Exactly one kind per definition:

• subprocess (cmd): any executable that reads the candidate as JSON on stdin (never argv — injection-resistant) and emits {"verdict":"pass|fail|abstain", ...} on stdout.
• judge (judge): a native LLM-judge gate that grades the candidate against a rubric.
• consistency (consistency): a self-consistency uncertainty gate that scores the candidate by agreement with k fresh samples of the same model (Wang et al. 2022).
• schema (schema): validates the candidate (parsed as JSON) against a JSON-Schema subset (top-level type / required / per-property type).

Fields

id: String

The id a route references this gate by (must be unique and not shadow a built-in gate id).

cmd: Vec<String>

Subprocess command: program first, then its args — e.g. ["pytest", "-q"]. Set this or judge / consistency / schema, not both.

timeout_ms: u64

Hard timeout in milliseconds for a subprocess gate; it abstains (timeout) if the process runs longer.

judge: Option<JudgeDef>

LLM-judge configuration. Set this or cmd / consistency / schema, not both.

consistency: Option<ConsistencyDef>

Self-consistency configuration. Set this or cmd / judge / schema, not both.

schema: Option<Value>

JSON-Schema (subset) the candidate must satisfy. Set this or cmd / judge / consistency, not both.

on_abstain: AbstainPolicy

What an abstain from this gate means for serving (§7.2). fail_open (default): an abstaining gate never blocks serving — availability over strictness, today’s behavior. fail_closed: an abstain blocks serving exactly like a Fail — strictness over availability, for gates whose silence must never be mistaken for approval.

Trait Implementations

impl Clone for GateDef

fn clone(&self) -> GateDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GateDef

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for GateDef

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.