import { type WorkflowDocumentStepOutputType, workflowDocumentStepOutputTypes } from '@shipfox/workflow-document';
import type { ExpressionType } from '../expression/workflow-expression.js';
export type OutputType = WorkflowDocumentStepOutputType;
export interface OutputTypeDeclaration {
    readonly type: OutputType;
    readonly schema?: unknown;
}
export type OutputDeclarations = Readonly<Record<string, OutputTypeDeclaration>>;
export type JsonSchemaValidationResult = {
    readonly ok: true;
} | {
    readonly ok: false;
    readonly reason: string;
};
export type StepOutputCoercionErrorReason = 'missing' | 'undeclared' | 'invalid_type' | 'invalid_json' | 'schema_invalid';
export interface StepOutputCoercionError {
    readonly key: string;
    readonly reason: StepOutputCoercionErrorReason;
    readonly expectedType?: OutputType;
    readonly message: string;
    readonly schemaError?: string;
}
export type CoerceStepOutputsResult = {
    readonly ok: true;
    readonly output: Record<string, unknown>;
} | {
    readonly ok: false;
    readonly error: StepOutputCoercionError;
};
export { workflowDocumentStepOutputTypes as outputTypes };
export declare function outputDeclarationToExpressionType(declaration: OutputTypeDeclaration): ExpressionType;
export declare function outputDeclarationsToExpressionFields(declarations: OutputDeclarations): Readonly<Record<string, ExpressionType>>;
export declare function jsonSchemaToExpressionType(schema: unknown): ExpressionType;
export declare function validateJsonSchema(schema: unknown): JsonSchemaValidationResult;
export declare function coerceStepOutputs(params: {
    readonly declarations: OutputDeclarations;
    readonly output: Record<string, unknown> | null | undefined;
}): CoerceStepOutputsResult;
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