ReferenceSDK ReferenceStepSchemaPublic schema-like surface accepted by the SDK step builder.Copy MarkdownOpenSDK v2026.4.0 Kind: interface Signature ExampleCopyexport interface StepSchema Methods parse(input: unknown): T: Validate a value and either return the parsed output or throw. StepDefinitionDurable step definition created with `step()`.stepDefine one durable step in an agent workflow.