import type { AgentRecord } from "../utils/types.js";
import type { IAgentStore } from "./interfaces.js";
export declare class AgentStore implements IAgentStore {
    private readonly registryPath;
    private readonly agentsDir;
    constructor(twiningDir: string);
    /** Read the registry, returning empty array if file doesn't exist. */
    private readRegistry;
    /** Write the registry, ensuring agents/ directory exists. */
    private writeRegistry;
    /**
     * Create or update an agent record.
     * - If agent_id exists: merge capabilities (union), overwrite role/description if provided
     * - If agent_id doesn't exist: create new record
     */
    upsert(input: {
        agent_id: string;
        capabilities?: string[];
        role?: string;
        description?: string;
    }): Promise<AgentRecord>;
    /**
     * Update last_active timestamp, creating a minimal record if agent doesn't exist.
     * This is the auto-register path (REG-01).
     */
    touch(agentId: string): Promise<AgentRecord>;
    /** Get a single agent by agent_id, or null if not found. */
    get(agentId: string): Promise<AgentRecord | null>;
    /** Get all agents from registry. */
    getAll(): Promise<AgentRecord[]>;
    /**
     * Find agents with any matching capability tag (OR match).
     * Input tags are normalized before matching.
     */
    findByCapabilities(tags: string[]): Promise<AgentRecord[]>;
}
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