/** Resolve an arbitrary .dml path (relative to cwd or absolute) for diagramming. */
export declare function resolveDiagramSource(cwd: string, request: string): Promise<string>;
/**
 * Every DML file that should appear in the viewer: all skills and plans in the
 * active workspace, plus any extra target (which may live anywhere).
 */
export declare function collectDiagramTargets(cwd: string, extra?: string[]): Promise<string[]>;
/**
 * Stable viewer/sidecar name. Same-named DML files in different directories get
 * a short path hash so they can never collide.
 */
export declare function diagramNameFor(target: string, all: string[], cwd: string): string;
export declare function displayPath(cwd: string, target: string): string;
export interface DiagramDir {
    root: string;
    diagrams: string;
    vendor: string;
    vendorFile: string;
}
/**
 * Create .pi/deepclause/diagrams/ and place the vendored Mermaid bundle so the
 * viewer works offline. Existing files are never overwritten.
 */
export declare function ensureDiagramDir(cwd: string, vendorAssetPath: string): Promise<DiagramDir>;