Struct LifecyclePolicy 

pub struct LifecyclePolicy {
    pub decay_rate: f32,
    pub low_confidence_threshold: f32,
    pub stale_days: i64,
    pub similarity_threshold: f32,
    pub forgetting_model: String,
    pub base_stability_days: f32,
    pub archetype_aware_decay: bool,
    pub prune_unretrieved_after_days: Option<i64>,
    pub reclaim_headroom_pct: f32,
    pub reclaim_enabled: bool,
}

Fields

decay_rate: f32

low_confidence_threshold: f32

stale_days: i64

similarity_threshold: f32

forgetting_model: String

Forgetting curve (#1): ebbinghaus (default) or linear (legacy).

base_stability_days: f32

Characteristic memory stability in days for the Ebbinghaus curve.

archetype_aware_decay: bool

Scale Ebbinghaus stability by fact archetype so structural evidence decays slower than inference. Default false keeps the baseline tuning unchanged.

prune_unretrieved_after_days: Option<i64>

Archive single-confirmation facts untouched for this many days that were never retrieved — dead weight regardless of confidence (#962). Defaults to a conservative 90 days (#972): genuinely cold facts are archived (and rehydrate on recall), so a store self-curates instead of only churning at its cap. Set None/off to disable.

reclaim_headroom_pct: f32

Proactive headroom on a capacity reclaim (#995): when a store reaches its cap, settle it at 1 - reclaim_headroom_pct (e.g. 0.25 → 75%) instead of churning right at the cap. Lossless — the reclaimed tail is archived and restorable.

reclaim_enabled: bool

Master switch for the proactive reclaim (#995). false is the documented escape hatch: trim only the overflow, no headroom. Eviction stays lossless either way.

Trait Implementations

impl Clone for LifecyclePolicy

fn clone(&self) -> LifecyclePolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LifecyclePolicy

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

Formats the value using the given formatter.

impl Default for LifecyclePolicy

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for LifecyclePolicy

where LifecyclePolicy: Default,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for LifecyclePolicy

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

where __S: Serializer,

Serialize this value into the given Serde serializer.