/** ISO-8601 timestamp string (matches the runtime's `nowIso()` output). */
export type IsoTime = string;
/** A node id — the existing `<slug>-<hash>` string. Typed as a nominal alias so
 *  DTOs read as thin projections; validated at the boundary by `isSafeNodeId`. */
export type NodeIdDTO = string;
/** Opaque pagination cursor (server-defined; clients pass it back verbatim). */
export type Cursor = string;
/** Standard list-pagination inputs shared by paged queries. */
export interface Pagination {
    limit?: number;
    cursor?: Cursor;
}
/** Runtime status of a node (mirrors the runtime `NodeStatus` union; declared
 *  locally to keep `/api` free of any `core/*` import). */
export type NodeStatusDTO = 'active' | 'idle' | 'done' | 'dead' | 'canceled';
/** Lifecycle class of a node (mirrors the runtime `Lifecycle` union). */
export type LifecycleDTO = 'terminal' | 'resident';
/** Execution mode of a node (mirrors the runtime `Mode` union). */
export type ModeDTO = 'base' | 'orchestrator';
/** Why a node last stopped (mirrors the runtime `ExitIntent` union). */
export type ExitIntentDTO = 'done' | 'refresh' | 'idle-release' | null;
/** Inbox urgency tier for a delivered message (mirrors feed/inbox `InboxTier`). */
export type InboxTierDTO = 'critical' | 'urgent' | 'normal' | 'deferred';
/** Whether a node id is a safe single filesystem path segment. Re-declared here
 *  (not imported from `core/canvas/paths.ts`) to keep the exported `/api`
 *  contract dependency-light; kept byte-for-byte equivalent to the runtime's. */
export declare function isSafeNodeId(id: string): boolean;