Struct BrainState 

pub struct BrainState {
    pub profiles: HashMap<String, ProfileRecord>,
    pub balanced_recall: BalancedRecallState,
    pub profile_states: HashMap<String, BalancedRecallState>,
    pub bindings: Vec<ProfileBinding>,
    pub section_states: HashMap<String, SectionPosteriorState>,
}

Runtime brain state — profile registry + active state per profile.

ADR-032 §1: BrainState holds profile registry and lifecycle metadata. Posteriors live inside each profile’s own state, opaque to brain.

Per-profile state: balanced_recall holds the live state for the built-in balanced-recall-v1 profile. profile_states holds live BalancedRecallState for every user-created Bayesian profile. Both maps are initialised at profile creation and cleared on hard-delete; they are never absent for a living profile whose state_class == "Bayesian".

section_states: per-profile section-level Beta posteriors (ADR-048 §Phase1). Keys are profile_id; values are SectionPosteriorState.

Fields

profiles: HashMap<String, ProfileRecord>

Registered profiles indexed by profile_id.

balanced_recall: BalancedRecallState

In-memory BalancedRecallState for the built-in balanced-recall-v1 profile.

profile_states: HashMap<String, BalancedRecallState>

Per-profile live state for user-created Bayesian profiles.

bindings: Vec<ProfileBinding>

Profile binding table — maps (actor, namespace, consumer_kind) → profile_id.

section_states: HashMap<String, SectionPosteriorState>

Per-profile section posteriors (ADR-048).

Implementations

impl BrainState

pub fn new(entity_capacity: usize) -> Self

pub fn to_snapshot(&self) -> BrainStateSnapshot

pub fn from_snapshot( snapshot: BrainStateSnapshot, entity_capacity: usize, ) -> Self

pub fn reset_posteriors(&mut self)

Reset the balanced-recall profile posteriors to priors.

pub fn reset_profile_posteriors(&mut self, profile_id: &str)

Reset posteriors for a user-created Bayesian profile.

pub fn resolve( &self, actor: Option<&str>, namespace: Option<&str>, consumer_kind: &str, ) -> Option<&ProfileRecord>

Resolve a profile_id for the given caller context (ADR-032 §10).

Longest-match wins: actor + namespace + consumer_kind beats actor + consumer_kind beats namespace + consumer_kind beats consumer_kind alone. Returns the balanced-recall-v1 default when no explicit binding matches.

Archived profiles are never returned, whether reached via binding or fallback.

pub fn resolve_with_match( &self, actor: Option<&str>, namespace: Option<&str>, consumer_kind: &str, ) -> Option<(&ProfileRecord, String)>

Like resolve, but also returns the consumer_kind field from the matched binding row (H3: lets the caller distinguish a wildcard match from an exact match).

Returns (profile_record, matched_binding_consumer_kind). For the implicit default fallback the matched kind equals the profile’s own consumer_kind.