import { type ToolContext, type ToolResult } from "./registry.js";
import { type PendingAttachment, type PendingReason, type PendingSend } from "../pending.js";
import type { Attachment, MailProvider } from "../providers/interface.js";
export declare function checkSendLimit(account: string): string | null;
export declare function clearSendLimit(account: string): void;
export interface OutgoingArgs {
    account: string;
    recipients: string[];
    knownRecipients?: string[];
    isForward?: boolean;
    draftOnly?: boolean;
}
export interface OutgoingGate {
    provider: MailProvider;
    draftsOnly: boolean;
    /** Set when the send must go to the approval queue instead of the provider. */
    queueReason?: PendingReason;
    taintedBy?: string;
}
export declare function gateOutgoing(args: Record<string, unknown>, ctx: ToolContext, out: OutgoingArgs): Promise<OutgoingGate | ToolResult>;
export declare function isRefusal(gate: {
    provider: MailProvider;
} | ToolResult): gate is ToolResult;
export declare function attachmentSpecs(paths: string[], loaded: Attachment[] | undefined): PendingAttachment[];
export declare function queueOutgoing(gate: OutgoingGate, spec: Omit<PendingSend, "id" | "createdAt" | "reason" | "taintedBy">): ToolResult;