Struct ShadowModeStats 

pub struct ShadowModeStats {
    pub total_queries: u64,
    pub total_disagreements: u64,
    pub disagreement_pairs: HashMap<String, u64>,
    pub samples: Vec<DisagreementSample>,
}

Shadow mode statistics tracking embedding vs TF-IDF disagreements.

Thread-safe via RwLock. Updated on every classify_with_router call when the embedding router is active.

Fields

total_queries: u64

Total queries routed through shadow mode.

total_disagreements: u64

Total disagreements (embedding chose different tool than TF-IDF).

disagreement_pairs: HashMap<String, u64>

Per-tool disagreement counts: (embedding_tool, tfidf_tool) → count.

samples: Vec<DisagreementSample>

Recent disagreement samples (capped at MAX_SAMPLES).

Implementations

impl ShadowModeStats

pub fn record( &mut self, query: &str, emb_tool: &str, emb_conf: f64, tfidf_tool: &str, tfidf_conf: f64, )

Record a routing comparison.

pub fn disagreement_rate(&self) -> f64

Disagreement rate (0.0–1.0).

pub fn promotion_ready(&self) -> bool

Whether the embedding router is ready for promotion to primary (disagreement rate below 20% and enough samples).

pub fn report(&self) -> Value

Generate a JSON report for the nlu.shadow_report tool.

Trait Implementations

impl Debug for ShadowModeStats

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

Formats the value using the given formatter.

impl Default for ShadowModeStats

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ShadowModeStats

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ShadowModeStats

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

where __S: Serializer,

Serialize this value into the given Serde serializer.