/** Variable definition for workflow parameterization */
export interface WorkflowVariable {
    required?: boolean;
    type?: 'string' | 'integer' | 'array';
    pattern?: string;
    default?: string;
}
/** A single step within a workflow phase */
export interface WorkflowStep {
    id: string;
    type: 'command' | 'validation' | 'agent_input' | 'agent_work';
    prompt?: string;
    command?: string;
    checkpoint?: string;
    blocks_next?: boolean;
    rules?: string[];
    required_fields?: string[];
    /** Validation conditions (for type=validation) */
    conditions?: string[];
    /** File glob patterns that must exist before step can be completed */
    completion_conditions?: {
        /** Files that must exist (glob patterns resolved from cwd) */
        files_exist?: string[];
    };
}
/** A phase containing ordered steps */
export interface WorkflowPhase {
    id: string;
    steps: WorkflowStep[];
    /** Variable name containing array to iterate over */
    repeat_for?: string;
    /** Timeout in seconds for each repeated item */
    timeout_per_item?: number;
    /** Behavior when a repeated item times out */
    on_timeout?: 'fail' | 'log_blocker_and_skip';
}
/** Top-level workflow definition */
export interface WorkflowDefinition {
    name: string;
    version: string;
    description?: string;
    variables?: Record<string, WorkflowVariable>;
    phases: WorkflowPhase[];
}
/** Parse a YAML string into a WorkflowDefinition. Throws on invalid structure. */
export declare function parseWorkflow(yaml: string): WorkflowDefinition;
/** Valid step types for workflow definitions. Shared with the validator. */
export declare const VALID_STEP_TYPES: Set<string>;
/**
 * Resolve `${varName}` references in all string values of a workflow definition.
 * - Top-level string keys only (no nesting like `${x.y}`)
 * - Missing variable at resolve time → error
 * - Escaped `\${literal}` → `${literal}`
 */
export declare function resolveVariables(def: WorkflowDefinition, vars: Record<string, string>): WorkflowDefinition;
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