Struct AuditEvent 

pub struct AuditEvent {

    pub schema_version: u32,
    pub timestamp: String,
    pub sequence: u64,
    pub actor: AuditActor,
    pub action: AuditAction,
    pub target: AuditTarget,
    pub outcome: AuditOutcome,
    pub auth: Option<AuditAuth>,
    pub session_id: Option<String>,
    pub request_id: Option<String>,
    pub error: Option<String>,
    pub prev_hash: String,
    pub self_hash: String,
}

One audit event. The serialized form is one JSON object per line (NDJSON). Field order is stable for chain reproducibility.

Fields

schema_version: u32

Schema version — see SCHEMA_VERSION.

timestamp: String

RFC3339 UTC timestamp when the event was emitted.

sequence: u64

Per-process monotonic counter starting at 1 on init.

actor: AuditActor

action: AuditAction

target: AuditTarget

outcome: AuditOutcome

auth: Option<AuditAuth>

Authentication context. None for stdio MCP / CLI invocations where there is no transport-level auth.

session_id: Option<String>

request_id: Option<String>

error: Option<String>

Populated only when outcome = Error. Capped at 256 chars to prevent error-message based content leaks.

prev_hash: String

Hex-encoded sha256 of the immediately prior line’s self_hash, or CHAIN_HEAD_PREV_HASH for the first line of a fresh chain.

self_hash: String

Hex-encoded sha256 of every preceding field in serialization order.

Trait Implementations

impl Clone for AuditEvent

fn clone(&self) -> AuditEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AuditEvent

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AuditEvent

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for AuditEvent

impl PartialEq for AuditEvent

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for AuditEvent