/**
 * Per-tool approval / model-output policy types (ADR 0039 P1).
 */
export type ToolApprovalMode = 'always' | 'once' | 'never';
export type ToolApprovalPolicy = ToolApprovalMode | ((input: {
    toolName: string;
    args: Record<string, unknown>;
}) => boolean | Promise<boolean>);
export type ToolToModelOutputInput<TArgs = Record<string, unknown>> = {
    result: unknown;
    args: TArgs;
};
export type ToolToModelOutputFn<TArgs = Record<string, unknown>> = (input: ToolToModelOutputInput<TArgs>) => string | Promise<string>;
export declare function toolApprovalAlways(): ToolApprovalMode;
export declare function toolApprovalOnce(): ToolApprovalMode;
export declare function toolApprovalNever(): ToolApprovalMode;
/** @deprecated Use toolApprovalAlways — Eve-style alias */
export declare const always: typeof toolApprovalAlways;
/** @deprecated Use toolApprovalOnce */
export declare const once: typeof toolApprovalOnce;
/** @deprecated Use toolApprovalNever */
export declare const never: typeof toolApprovalNever;
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