import type { MCPClient } from '../core/database.js';
import type { KnowledgeObject, KnowledgeObjectType } from '../types/knowledge.js';
import type { ID, ValidationResult } from '../types/common.js';
export declare class KnowledgeService {
    private readonly repo;
    constructor(client: MCPClient);
    create(input: Omit<KnowledgeObject, 'id' | 'createdAt' | 'updatedAt'> & {
        id?: ID;
    }): Promise<{
        object: KnowledgeObject | null;
        validation: ValidationResult;
    }>;
    getById(id: ID): Promise<KnowledgeObject | null>;
    update(id: ID, fields: Partial<KnowledgeObject>): Promise<ValidationResult>;
    upsert(object: KnowledgeObject): Promise<void>;
    listByType(projectId: ID, type: KnowledgeObjectType): Promise<KnowledgeObject[]>;
    listByStatus(projectId: ID, status: KnowledgeObject['status']): Promise<KnowledgeObject[]>;
    filterContextEligible(projectId: ID): Promise<KnowledgeObject[]>;
    filterGraphEligible(projectId: ID): Promise<KnowledgeObject[]>;
    filterEmbeddingEligible(projectId: ID): Promise<KnowledgeObject[]>;
    search(projectId: ID, query: string): Promise<KnowledgeObject[]>;
}
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