import type { DatabaseSync } from 'node:sqlite';
import type { SceneContextProvider, SceneEvidence } from './execution.js';
import type { SceneActivation, ScenePrincipal } from './contracts.js';
/** Reads a bounded, account-scoped thread from synchronized connector knowledge. */
export declare class SceneMailContextProvider implements SceneContextProvider {
    private readonly db;
    private readonly clock;
    readonly id = "mail";
    readonly tracksHealth = true;
    readonly requiresAccountIdentity = true;
    constructor(db: DatabaseSync, clock?: () => number);
    setupIssues(activation: SceneActivation): string[];
    authorization(activation: SceneActivation): string[] | null;
    /** Resolve current account grants for the exact delegated source, including reconnects and revocation. */
    authorizedAccounts(activation: SceneActivation): string[];
    /** Picker metadata only; choosing an item still requires explicit activation consent. */
    listSources(principal: ScenePrincipal, limit?: number, afterId?: string): {
        id: string;
        accountId: string;
        subject: string;
        sender: string;
    }[];
    read(input: Parameters<SceneContextProvider['read']>[0]): Promise<SceneEvidence[]>;
}