/**
 * Artifact markdown export — narrow handoff move, not a generic writer.
 *
 * Laws:
 *   - Reads the artifact's EXISTING markdown file. No re-render, no
 *     model call.
 *   - Prepends a provenance header (HTML comment) so exported files
 *     keep identity and point back at the source JSON.
 *   - Path safety is strict:
 *       - target_path must be absolute
 *       - no '..' segments in the input path (checked before normalize)
 *       - must end in .md
 *       - must live under one of the caller-supplied allowed_roots —
 *         no global default. The caller declares where export may
 *         write; the tool never guesses.
 *   - Overwrite is opt-in. Default refuses when target exists so
 *     re-runs never clobber a hand-edited copy silently.
 */
import type { PackArtifact } from "./scan.js";
export interface ExportOptions {
    target_path: string;
    allowed_roots: string[];
    overwrite?: boolean;
}
export interface ExportResult {
    target_path: string;
    bytes_written: number;
    overwrote: boolean;
    provenance: {
        pack: string;
        slug: string;
        created_at: string;
        source_json_path: string;
    };
    exported_at: string;
}
/**
 * Execute the export. Takes the resolved artifact + target details
 * and writes the artifact's existing markdown (with a provenance
 * header prepended) to target_path.
 */
export declare function exportArtifactMarkdown(artifact: PackArtifact, opts: ExportOptions): Promise<ExportResult>;
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