Struct Execution 

pub struct Execution {
    pub id: ExecutionId,
    pub tenant_id: Option<TenantId>,
    pub state: ExecutionState,
    pub parent: Option<ParentLink>,
    pub steps: HashMap<StepId, Step>,
    pub step_order: Vec<StepId>,
    pub schema_version: Option<String>,
    pub started_at: Option<Instant>,
    pub ended_at: Option<Instant>,
    pub output: Option<String>,
    pub error: Option<ExecutionError>,
}

Execution - one run of a blueprint

Fields

id: ExecutionId

Unique execution ID

tenant_id: Option<TenantId>

Tenant ID (REQUIRED for audit trail and multi-tenant isolation) This is set from TenantContext when the kernel is created.

state: ExecutionState

Current state in the lifecycle

parent: Option<ParentLink>

Parent execution (if this is a sub-execution)

steps: HashMap<StepId, Step>

All steps in this execution

step_order: Vec<StepId>

Ordered list of step IDs (for replay)

schema_version: Option<String>

Schema version hash (for replay validation)

started_at: Option<Instant>

Start time

ended_at: Option<Instant>

End time

output: Option<String>

Final output (if completed)

error: Option<ExecutionError>

Structured error (if failed) - see feat-02 Error Taxonomy

Implementations

impl Execution

pub fn new() -> Self

Create a new execution

pub fn with_id(id: ExecutionId) -> Self

Create a new execution with a specific ID

pub fn with_tenant(tenant_id: TenantId) -> Self

Create a new execution with tenant ID

pub fn child(&self) -> Self

Create a child execution Inherits tenant_id from parent for multi-tenant isolation

pub fn with_schema_version(self, version: impl Into<String>) -> Self

Set schema version for replay validation

pub fn get_step(&self, id: &StepId) -> Option<&Step>

Get a step by ID

pub fn get_step_mut(&mut self, id: &StepId) -> Option<&mut Step>

Get a mutable step by ID

pub fn add_step(&mut self, step: Step)

Add a new step

pub fn duration_ms(&self) -> Option<u64>

Get execution duration in milliseconds

pub fn is_terminal(&self) -> bool

Check if execution is in a terminal state

Trait Implementations

impl Debug for Execution

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

Formats the value using the given formatter.

impl Default for Execution

fn default() -> Self

Returns the “default value” for a type.