Enum MemorySource 

pub enum MemorySource {
    User,
    UserInferred,
    Assistant,
    External,
    Derived,
}

Provenance source for a memory claim.

Per spec §provenance-filter, source is a first-class ranking signal. The v1 retrieval Tier 1 pipeline applies a source-weighted multiplier to the final RRF score so assistant-authored facts don’t drown out user-authored claims.

Variants

User

User explicitly stated the claim (highest trust).

UserInferred

Extractor confidently inferred from user signals.

Assistant

Assistant authored — heavy penalty at retrieval.

External

Imported from another system (e.g. Mem0, ChatGPT, Claude memory).

Derived

Computed (digests, summaries, consolidation).

Implementations

impl MemorySource

pub fn from_str_lossy(s: &str) -> MemorySource

Case-insensitive parser that returns a fallback for unknown input.

Returns MemorySource::UserInferred for any unrecognised string. This choice matches the retrieval Tier 1 policy for legacy claims without a source field — they receive a moderate fallback weight rather than being penalised as hard as assistant or promoted as high as user.

Trait Implementations

impl Clone for MemorySource

fn clone(&self) -> MemorySource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemorySource

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MemorySource

fn deserialize<__D>( __deserializer: __D, ) -> Result<MemorySource, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for MemorySource

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for MemorySource

fn eq(&self, other: &MemorySource) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for MemorySource

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for MemorySource

impl Eq for MemorySource

impl StructuralPartialEq for MemorySource