/** Schema checks for a doc living in a substrate memory dir: a memory store
 *  holds ONLY substrate docs, so a missing/invalid `kind` is an authoring
 *  error here (elsewhere it just means "not a substrate doc"). Both rungs are
 *  REQUIRED — there is no kind default to lean on, so a missing rung is an
 *  authoring error. Rung and gate values are checked RAW — the runtime parser
 *  silently falls back to the neutral floor / inert gates, which is exactly the
 *  silent tolerance this lint exists to catch at authoring time. */
export declare function lintSubstrateSchema(fm: Record<string, unknown> | null): string | null;
export declare const lintLeaf: import("../../core/command.js").LeafDef;