Struct EvolutionEngine 

pub struct EvolutionEngine {
    pub agent_id: String,
    pub axes: HashMap<PersonaAxis, AxisState>,
}

Fields

agent_id: String

axes: HashMap<PersonaAxis, AxisState>

Implementations

impl EvolutionEngine

pub fn new(agent_id: impl Into<String>) -> EvolutionEngine

pub fn extract_signals( &self, store: &SqliteGraphStore, ) -> Result<Vec<RawSignal>, String>

Read signals from the graph store for this agent (no writes).

pub fn ingest_signals(&mut self, signals: Vec<RawSignal>) -> usize

Applies each signal to its axis EMA. Returns how many signals produced a score change larger than INGEST_SCORE_EPSILON on an existing axis (skipped axes do not count).

pub fn snapshot(&self) -> PersonaSnapshot

Current axes as a snapshot (no writes).

pub fn write_persona_node( &self, store: &SqliteGraphStore, snapshot: &PersonaSnapshot, ) -> Result<(), String>

Persist snapshot to the evolution PersonaNode row.

snapshot.agent_id must match this engine’s agent id.

pub fn evolve( &mut self, store: &SqliteGraphStore, ) -> Result<PersonaSnapshot, String>

Full evolution pass: extract → ingest → snapshot → write.

pub fn correction_tick(&mut self, axis: PersonaAxis, correction: f32)