Struct LifecycleConfig 

pub struct LifecycleConfig {
    pub decay_rate_per_day: f32,
    pub max_facts: usize,
    pub low_confidence_threshold: f32,
    pub stale_days: i64,
    pub consolidation_similarity: f32,
    pub forgetting_model: ForgettingModel,
    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_per_day: f32

max_facts: usize

low_confidence_threshold: f32

stale_days: i64

consolidation_similarity: f32

forgetting_model: ForgettingModel

Forgetting curve (#1). Defaults to Ebbinghaus.

base_stability_days: f32

Characteristic stability (days) for the Ebbinghaus curve before spacing and feedback modulation.

archetype_aware_decay: bool

When true, scale stability by the fact’s archetype so structural evidence (architecture/dependency/…) decays slower than inference (#802/cognition). Default false keeps the baseline tuning byte-for-byte.

prune_unretrieved_after_days: Option<i64>

Archive facts untouched for this many days that were never retrieved — dead weight that costs injection tokens regardless of confidence (#962). None disables it (the default, so existing tuning is unchanged); the production policy can opt in. Reversible: pruned facts go to the archive.

reclaim_headroom_pct: f32

Proactive headroom on a capacity reclaim (#995): when a store reaches its cap, drop down to reclaim_target(max_facts, reclaim_headroom_pct) so it settles with working room instead of churning at the cap. 0.25 = 75%.

reclaim_enabled: bool

Master switch for the proactive capacity reclaim (#995). false restores the legacy “trim only the overflow” behavior — the documented escape hatch. Eviction stays lossless either way (excess is archived).

Implementations

impl LifecycleConfig

pub fn from_policy(policy: &MemoryPolicy) -> Self

Map the persisted crate::core::memory_policy::MemoryPolicy to the runtime lifecycle config. The single mapping site, so adding a knob touches exactly one place (previously duplicated across the lifecycle and cognition callers).

Trait Implementations

impl Clone for LifecycleConfig

fn clone(&self) -> LifecycleConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LifecycleConfig

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

Formats the value using the given formatter.

impl Default for LifecycleConfig

fn default() -> Self

Returns the “default value” for a type.