import type { AnyTool } from '../types/effectTool.js';
import type { Flow } from '../types/flow.js';
/** Result shape emitted by the `enter_flow` control tool. `classifyControl`
 *  recognizes it and turns it into a `TurnControl{ type: 'enterFlow' }`, so the
 *  host loop enters the named flow — routing folded into the speaking turn
 *  instead of a separate upfront `generateObject` selector. */
export interface EnterFlowResult {
    __enterFlow: true;
    flowName: string;
    reason?: string;
}
export declare function isEnterFlowResult(result: unknown): result is EnterFlowResult;
/** Build the model-visible `enter_flow` control tool from available flows. */
export declare function createEnterFlowTool(availableFlows: Flow[]): AnyTool;