import type { ONIMessage, MessageState } from "../graph.js";
import type { ONISkeleton, RetryPolicy } from "../types.js";
import type { ONICheckpointer } from "../types.js";
import { type ONITool } from "./tool-node.js";
import type { ONIModel } from "../models/types.js";
export interface ONILanguageModel {
    invoke(messages: ONIMessage[], config?: {
        tools?: LLMToolSchema[];
        signal?: AbortSignal;
    }): Promise<ONIMessage>;
}
export interface LLMToolSchema {
    name: string;
    description: string;
    parameters: Record<string, unknown>;
}
export interface CreateReactAgentOptions {
    /** The LLM to use as the agent brain (ONIModel or legacy ONILanguageModel) */
    llm: ONIModel | ONILanguageModel;
    /** Tools the agent can call */
    tools?: ONITool[];
    /** System prompt prepended to every invocation */
    systemPrompt?: string;
    /** Retry policy for the agent node */
    agentRetry?: RetryPolicy;
    /** Retry policy for the tool node */
    toolRetry?: RetryPolicy;
    /** Interrupt before/after specific nodes */
    interruptBefore?: string[];
    interruptAfter?: string[];
    /** Checkpointer for persistence */
    checkpointer?: ONICheckpointer<MessageState>;
}
export declare function createReactAgent(opts: CreateReactAgentOptions): ONISkeleton<MessageState>;
export type { NodeFn } from "../types.js";
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