/**
 * Detect TypeScript errors reported during isolated transpilation.
 * This includes syntax errors and does not perform a full type check.
 *
 * @param source TypeScript source text to parse.
 * @param fileName File name to associate with parser diagnostics.
 * @returns Whether the source produces at least one error diagnostic.
 */
export declare function hasTypeScriptSyntaxErrors(source: string, fileName: string): boolean;
/**
 * Check whether a relative path stays within its project boundary.
 *
 * @param relativePath Relative path to validate.
 * @returns Whether the path is non-empty, rootless, and does not escape upward.
 */
export declare function isProjectLocalRelativePath(relativePath: string): boolean;
/**
 * Check whether a file path resolves inside a project directory.
 *
 * @param projectDir Absolute project directory used as the resolution base.
 * @param filePath Project-relative file path to validate.
 * @returns Whether the resolved file path remains inside the project directory.
 */
export declare function isSafeProjectRelativePath(projectDir: string, filePath: string): boolean;