/**
 * CapabilityRequest content type for ConvosConnections capability
 * resolution (agent → device "may I have this capability?").
 *
 * Mirrors the iOS `CapabilityRequestCodec` (PR #771):
 * - Content type: convos.org/capability_request:1.0
 * - Payload: JSON-encoded `CapabilityRequest`
 * - Fallback: `"The assistant is requesting access to your <subject>"`
 * - shouldPush: false (silent — surfaces via the picker UI)
 *
 * The device routes the request into `CapabilityResolver`, which
 * shows a picker / confirmation card. The user's choice arrives back
 * as a `CapabilityRequestResult` keyed on the same `requestId`.
 */
import type { ContentTypeId, EncodedContent } from "@xmtp/node-bindings";
import type { ContentCodec } from "@xmtp/content-type-primitives";
import type { DecodedMessage } from "@xmtp/node-sdk";
import type { CapabilitySubject, ProviderID } from "./capabilityTypes.js";
import type { ConnectionCapability } from "./connectionTypes.js";
export declare const ContentTypeCapabilityRequest: ContentTypeId;
/** Highest schema version this codec understands. */
export declare const CAPABILITY_REQUEST_SUPPORTED_VERSION = 1;
/** Cap on the rationale string. Anything longer is truncated on encode and decode. */
export declare const CAPABILITY_REQUEST_MAX_RATIONALE_LENGTH = 500;
/** Cap on preferredProviders entries. Anything longer is truncated on encode and decode. */
export declare const CAPABILITY_REQUEST_MAX_PREFERRED_PROVIDERS = 16;
export interface CapabilityRequest {
    /** Schema version. Must equal `CAPABILITY_REQUEST_SUPPORTED_VERSION` (1) for now. */
    version: number;
    /** Caller-supplied correlation ID echoed back on the result. */
    requestId: string;
    /**
     * Inbox ID of the agent that issued the request. Required so receivers
     * (and any other agents in a multi-agent group) can distinguish whose
     * request this is, and so subsequent grants can be targeted via
     * `ConnectionEvent.grantedToInboxId`. Mirrors convos-ios#812.
     */
    askerInboxId: string;
    subject: CapabilitySubject;
    capability: ConnectionCapability;
    /** Free-form human-readable reason; rendered verbatim on the picker card. */
    rationale: string;
    /**
     * Optional agent hint — provider IDs the agent has previously seen
     * in `profile.metadata["capabilities"]` and would prefer the
     * resolver default to. The resolver may override.
     */
    preferredProviders?: ProviderID[];
}
export declare class CapabilityRequestCodec implements ContentCodec<CapabilityRequest> {
    get contentType(): ContentTypeId;
    encode(content: CapabilityRequest): EncodedContent;
    decode(content: EncodedContent): CapabilityRequest;
    fallback(content: CapabilityRequest): string | undefined;
    shouldPush(_content: CapabilityRequest): boolean;
}
export declare function isCapabilityRequestMessage(message: DecodedMessage): boolean;
export declare function getCapabilityRequestContent(message: DecodedMessage): CapabilityRequest | undefined;