API Reference

The API reference is organized into per-section pages. Each page documents one group of related symbols with parameters, return values, and inline usage examples.

Reference sections

Section	What it covers
Definition Functions	defineDomain, definePipeline, MergeMetadata
Registration Helpers	when, enter, exit, on, node, action, fork, terminal
Handler Input Types	GuardInput, ActionInput, PhaseHookInput, PipelineConditionInput
Tracer	createTracer, TracerOptions, Tracer methods
Domain Instance	Domain properties and methods, DomainGraph query API
Pipeline Instance	Pipeline properties and methods, PipelineGraph query API, PathQueryOptions
Errors	PlexisError and error codes
Key Types	DomainFollowResult, PipelineRunResult, DomainSnapshot, DomainHistoryEntry, NodeInspection, GraphDescriptor, PatchLike, ErrorPolicy, TraceEvent, TraceLevel, TraceStatus

Quick links

• New to Plexis? Start with the Domain guide and the Pipeline guide.
• Adding observability? See the Tracer guide and the Tracer reference.
• Handling errors? See the Error Handling guide and the Errors reference.