/**
 * Agent - Core agent implementation for NeuroLink
 *
 * An Agent wraps a NeuroLink instance with specialized behavior, instructions,
 * and tool restrictions. Agents can be composed into networks for multi-agent
 * orchestration using the agents-as-tools pattern.
 */
import type { z } from "zod";
import type { NeuroLink } from "../neurolink.js";
import type { AgentDefinition, AgentExecutionOptions, AgentInput, AgentInstance, AgentResult, AgentStatus, AgentStreamChunk } from "../types/index.js";
/**
 * Agent - Wraps a NeuroLink instance with specialized behavior
 *
 * Features:
 * - Custom instructions and persona
 * - Tool restrictions per agent (via toolFilter on generate/stream)
 * - Input/output schema validation
 * - Streaming support
 * - Execution metrics tracking
 *
 * @example
 * ```typescript
 * const agent = new Agent({
 *   id: 'researcher',
 *   name: 'Research Agent',
 *   description: 'Searches and analyzes information',
 *   instructions: 'You are a research assistant...',
 *   tools: ['websearchGrounding', 'readFile'],
 * }, neurolink);
 *
 * const result = await agent.execute('Find information about quantum computing');
 * ```
 */
export declare class Agent implements AgentInstance {
    readonly id: string;
    readonly name: string;
    readonly description: string;
    readonly instructions: string;
    readonly provider?: string;
    readonly model?: string;
    readonly tools?: string[];
    readonly inputSchema?: z.ZodSchema;
    readonly outputSchema?: z.ZodSchema;
    readonly maxSteps: number;
    readonly temperature: number;
    readonly canDelegate: boolean;
    readonly metadata?: Record<string, unknown>;
    private neurolink;
    private emitter;
    private executionCount;
    private lastExecutionTime?;
    private totalExecutionTime;
    constructor(definition: AgentDefinition, neurolink: NeuroLink);
    /**
     * Execute the agent with given input
     *
     * @param input - Text input or structured data
     * @param options - Execution options
     * @returns Agent result with content and metadata
     */
    execute(input: AgentInput, options?: AgentExecutionOptions): Promise<AgentResult>;
    /**
     * Stream execution results
     *
     * @param input - Text input or structured data
     * @param options - Execution options
     * @yields Agent stream chunks
     */
    stream(input: AgentInput, options?: AgentExecutionOptions): AsyncIterable<AgentStreamChunk>;
    /**
     * Get agent status
     */
    getStatus(): AgentStatus;
    /**
     * Get average execution time
     */
    getAverageExecutionTime(): number;
    /**
     * Subscribe to agent events
     */
    on(event: string, handler: (...args: unknown[]) => void): void;
    /**
     * Unsubscribe from agent events
     */
    off(event: string, handler: (...args: unknown[]) => void): void;
    /**
     * Build prompt from input and context
     */
    private buildPrompt;
    /**
     * Build generation options for NeuroLink.generate()
     *
     * Uses toolFilter to delegate tool restriction to BaseProvider.applyToolFiltering()
     * rather than pre-filtering tools manually.
     */
    private buildGenerateOptions;
    /**
     * Build stream options for NeuroLink.stream()
     *
     * Uses toolFilter to delegate tool restriction to BaseProvider.applyToolFiltering()
     * rather than pre-filtering tools manually.
     */
    private buildStreamOptions;
}