/**
 * routes/channel-test.ts
 *
 * Handler for `channels.test.send`, a live per-channel test-message probe over
 * the daemon's own `ChannelDeliveryRouter`. Registered from
 * register-gateway-verb-groups when the delivery router is present (the same
 * composition root that wires ci and checkin), so the daemon, which owns the
 * delivery/retest lifecycle, is authoritative over whether a channel actually
 * sends.
 *
 * Honesty contract: the router throws when a target is unsupported (no strategy
 * for the surface) or a strategy's delivery fails. Those are caught and surfaced
 * as a structured `delivered:false` outcome carrying the real error string, a
 * 200 body the caller can branch on, NOT a fabricated success and NOT a blanket
 * 500. Only a missing/invalid `surface` argument is a thrown 400.
 */
import type { GatewayMethodCatalog } from '../method-catalog.js';
import type { GatewayMethodHandler } from '../method-catalog-shared.js';
import type { ChannelDeliveryRouter } from '../../channels/delivery-router.js';
/** The delivery surface `channels.test.send` needs, just `deliver`. */
export type ChannelTestDeliveryRouter = Pick<ChannelDeliveryRouter, 'deliver'>;
export declare function createChannelTestSendHandler(router: ChannelTestDeliveryRouter): GatewayMethodHandler;
/**
 * Attach the `channels.test.send` handler to its already-registered descriptor.
 * A missing descriptor is a silent no-op (mirrors the checkpoints/fleet
 * registration sites).
 */
export declare function registerChannelTestGatewayMethods(catalog: GatewayMethodCatalog, router: ChannelTestDeliveryRouter): void;
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