Struct Event 

pub struct Event {
    pub wall_ts_us: i64,
    pub agent: String,
    pub itc: String,
    pub parents: Vec<String>,
    pub event_type: EventType,
    pub item_id: ItemId,
    pub data: EventData,
    pub event_hash: String,
}

A single event in the bones event log.

Each event represents an immutable, content-addressed mutation to a work item. Events form a Merkle-DAG via the parents field, enabling causally-ordered CRDT replay.

Fields (TSJSON column order)

1. wall_ts_us — wall-clock microseconds since Unix epoch
2. agent — identifier of the agent/user that produced the event
3. itc — Interval Tree Clock stamp (canonical text encoding)
4. parents — parent event hashes (blake3:…), sorted lexicographically
5. event_type — one of the 11 event types
6. item_id — the work item this event mutates
7. data — typed payload (JSON in TSJSON, deserialized here)
8. event_hash — BLAKE3 hash of fields 1–7

Serde

Custom Deserialize implementation uses event_type to drive typed deserialization of the data field. This is necessary because the type discriminant is external to the JSON payload.

Fields

wall_ts_us: i64

Wall-clock timestamp in microseconds since Unix epoch.

Monotonically increasing per-repo via the clock file.

agent: String

Identifier of the agent or user that produced this event.

itc: String

Interval Tree Clock stamp in canonical text encoding.

Used for causal ordering independent of wall-clock time.

parents: Vec<String>

Parent event hashes forming the Merkle-DAG.

Sorted lexicographically. Empty for the first event in a repo. Format: ["blake3:abcdef...", ...]

event_type: EventType

The type of mutation this event represents.

item_id: ItemId

The work item being mutated.

data: EventData

Typed payload data specific to the event type.

event_hash: String

BLAKE3 content hash of fields 1–7.

Format: blake3:<payload> (base64url in new writes). This is the event’s identity in the Merkle-DAG and is used for parent references, shard manifests, and sync diffing.

Implementations

impl Event

pub fn parents_str(&self) -> String

Return the TSJSON parents field string (comma-separated, sorted).

Returns an empty string for root events (no parents).

Trait Implementations

impl Clone for Event

fn clone(&self) -> Event

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Event

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Event

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Event

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

Formats the value using the given formatter.

impl PartialEq for Event

fn eq(&self, other: &Event) -> 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 Event

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Event

impl StructuralPartialEq for Event