import { InterventionHandler, InterventionActions, type BeforeToolCallEvent, type JSONValue } from "@strands-agents/sdk";
export type ToolApprovalDecision = "allow" | "always";
export type ToolApprovalResult = ToolApprovalDecision | "reject" | {
    decision: "reject";
    reason?: string;
};
export type ToolApprovalRequest = {
    toolName: string;
    description?: string;
    input: unknown;
    inputPreview: string;
    prompt: string;
};
type ToolApprovalCallbacks = {
    onPromptStart?: (request: ToolApprovalRequest, event: BeforeToolCallEvent) => Promise<void> | void;
    onApproved?: (request: ToolApprovalRequest, event: BeforeToolCallEvent, decision: ToolApprovalDecision | "auto") => Promise<void> | void;
    onRejected?: (request: ToolApprovalRequest, event: BeforeToolCallEvent, reason: string) => Promise<void> | void;
};
export type ToolApprovalAsk = (request: ToolApprovalRequest, event: BeforeToolCallEvent) => Promise<ToolApprovalResult>;
export type HoomanToolApprovalInterventionConfig = ToolApprovalCallbacks & {
    ask: ToolApprovalAsk;
};
export declare class HoomanToolApprovalIntervention extends InterventionHandler {
    readonly name = "hooman:tool-approval";
    private readonly ask;
    private readonly onPromptStart?;
    private readonly onApproved?;
    private readonly onRejected?;
    constructor(config: HoomanToolApprovalInterventionConfig);
    beforeToolCall(event: BeforeToolCallEvent): Promise<ReturnType<typeof InterventionActions.proceed> | ReturnType<typeof InterventionActions.deny>>;
    private buildRequest;
}
export declare function normalizeApprovalResponse(response: JSONValue): ToolApprovalResult;
export {};