export declare function recordProcessDiagnostic(event: string, detail: unknown): void;
/** Independent of SQLite and async logger transports; safe to use during process failure. */
export declare function createProcessDiagnosticWriter(path: string): (event: string, detail: unknown) => void;
/** Observe fatal exceptions without resuming execution in an unknown process state. */
export declare function installProcessDiagnostics(path: string): () => void;