import type { DB } from "../index.js";
/**
 * Tag synonyms: alias -> canonical
 * Example: { "db": "database", "docs": "documentation" }
 */
export type TagSynonyms = Record<string, string>;
/**
 * Tag hierarchies: child -> parent
 * Example: { "mcp-tools": "mcp", "drizzle": "database" }
 */
export type TagHierarchies = Record<string, string>;
/**
 * Required tags: entityType -> required tag patterns
 * Example: { "facts": [], "skills": ["workflow"] }
 */
export type RequiredTags = Record<string, string[]>;
/**
 * Get tag synonyms from config
 */
export declare function getTagSynonyms(db: DB): Promise<TagSynonyms>;
/**
 * Get tag hierarchies from config
 */
export declare function getTagHierarchies(db: DB): Promise<TagHierarchies>;
/**
 * Get required tags from config
 */
export declare function getRequiredTags(db: DB): Promise<RequiredTags>;
/**
 * Expand a list of tags to include synonyms.
 * Bidirectional: searching "db" also finds "database" and vice versa.
 */
export declare function expandTagsWithSynonyms(tags: string[], synonyms: TagSynonyms): string[];
/**
 * Expand a list of tags to include children (when searching by parent).
 * Parent search includes all descendants.
 */
export declare function expandTagsWithHierarchy(tags: string[], hierarchies: TagHierarchies): string[];
/**
 * Fully expand tags with both synonyms and hierarchy.
 * Order: synonyms first, then hierarchy (so synonym parents are also expanded).
 */
export declare function expandTags(db: DB, tags: string[]): Promise<string[]>;
/**
 * Validate that all required tags are present for an entity type (sync version).
 * Supports pattern matching with trailing * for prefix match.
 * Use this when you already have the required tags config.
 */
export declare function validateRequiredTagsSync(entityType: string, providedTags: string[], requiredTags: RequiredTags): {
    valid: boolean;
    missing: string[];
};
/**
 * Validate that all required tags are present for an entity type.
 * Supports pattern matching with trailing * for prefix match.
 * Fetches required tags config from database.
 */
export declare function validateRequiredTags(db: DB, entityType: string, providedTags: string[]): Promise<{
    valid: boolean;
    missing: string[];
}>;
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