import type { Request } from 'express';
import type { EnvelopeAuthority } from '../envelope/authority.js';
import type { Envelope, MemoryScope, ProjectRef } from '../envelope/types.js';
export interface WorkerEnvelopeVisibility {
    envelope: Envelope;
    connectors: string[];
    scopes: MemoryScope[];
    projectRefs: ProjectRef[];
    tenantId: string;
}
export declare class WorkerEnvelopeError extends Error {
    readonly status: number;
    readonly code: string;
    constructor(status: number, code: string, message: string);
}
export declare function loadWorkerEnvelope(req: Request, authority: EnvelopeAuthority | undefined): Envelope;
export declare function deriveWorkerEnvelopeVisibility(envelope: Envelope, requested: {
    connectors?: string[];
    scopes?: MemoryScope[];
}): WorkerEnvelopeVisibility;
export declare function deriveEffectiveProjectRefs(envelope: Envelope): ProjectRef[];
export declare function deriveEffectiveTenantId(): string;
export declare function parseRequestedConnectors(req: Request): string[] | undefined;
export declare function parseRequestedScopes(req: Request): MemoryScope[] | undefined;
export declare function firstString(value: unknown): string | undefined;
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