import type { ValidationResult } from "./validation-types";
/**
 * Validates a plan file's structure and content before /start-work execution.
 *
 * @param planPath  Absolute path to the plan markdown file
 * @param projectDir  Absolute path to the project root (used for file-reference checks)
 * @returns ValidationResult with errors (blocking) and warnings (non-blocking)
 */
export declare function validatePlan(planPath: string, projectDir: string): ValidationResult;