import type { TurnResult, UserSignal, ResolvedNode } from '../../types/channel.js';
import type { RunContext } from '../../types/run-context.js';
import type { ChannelDriver } from '../../types/channel.js';
import type { DecideNode } from '../../types/flow.js';
import { buildNodePrompt } from '../../flow/nodeBuilders.js';
import type { AnyTool } from '../../types/effectTool.js';
import { type ModelTurnLoop } from './ModelTurnLoop.js';
export interface TextDriverConfig {
    toolDefs?: Record<string, AnyTool>;
    maxSteps?: number;
    /** Replaces only the provider/tool iteration loop; Kuralle still owns turn composition. */
    modelLoop?: ModelTurnLoop;
}
export declare class TextDriver implements ChannelDriver {
    readonly outputCapability: "kuralle-controlled-text";
    private readonly toolDefs;
    private readonly maxSteps;
    private readonly modelLoop;
    constructor(config?: TextDriverConfig);
    runAgentTurn(node: ResolvedNode, ctx: RunContext): Promise<TurnResult>;
    runExtraction(node: ResolvedNode, ctx: RunContext): Promise<TurnResult>;
    runStructured(node: DecideNode, ctx: RunContext): Promise<unknown>;
    awaitUser(ctx: RunContext): Promise<UserSignal>;
    private agentToolDefs;
    private resolveTools;
}
export { addTurnUsage, languageModelId } from './turnUsage.js';
export { buildNodePrompt };
/** Compose the base layer for any custom driver's structured decide path. */
export declare function buildDecideSystem(node: DecideNode, ctx: RunContext): import("ai").SystemModelMessage[];