/**
 * Explain why a `<wf>_eval` workflow isn't registered. When the eval source
 * exists on disk but isn't in the catalog, it almost always means tests/evals
 * never compiled to dist (a tsconfig exclude dropped it) — so point at that
 * instead of a bare WorkflowNotFoundError.
 */
export declare function diagnoseMissingEvalWorkflow(workflowName: string, basePath?: string): Promise<string>;