/**
 * HarnessAdapter registry: enumeration and id-based lookup over a fixed set
 * of adapter descriptors. Separate from SessionManager's adapter map
 * (Partial<Record<HarnessKind, HarnessAdapter>>) which carries the actual
 * spawn/resume/doctor implementations — this registry is the source of truth
 * for what harnesses exist, their mode (embedded vs external), and their
 * per-harness metadata (installMcpPrompt, detectInstalled).
 *
 * Adding an external harness = one descriptor file + one HARNESS_ADAPTER_INFOS
 * line. An embedded harness that can be spawned as a session additionally
 * requires a runtime adapter and an entry in SPAWNABLE_HARNESS_KINDS
 * (shared/types.ts) — see adapter.ts for the full checklist.
 */
import { HarnessError } from "../errors.js";
import type { HarnessAdapterInfo } from "./adapter.js";
/** Every built-in adapter descriptor, in presentation order. */
export declare const HARNESS_ADAPTER_INFOS: readonly HarnessAdapterInfo[];
/** Thrown by registry lookups when no adapter has the requested id. */
export declare class UnknownHarnessAdapterError extends HarnessError {
    constructor(id: string, knownIds: readonly string[]);
}
/** Read-only view over the adapter registry. */
export interface HarnessAdapterRegistry {
    /** All adapters, in registration order. The array is frozen. */
    list(): readonly HarnessAdapterInfo[];
    /**
     * The adapter with the given id. Accepts any string (ids often come from
     * config files or HTTP bodies) and throws {@link UnknownHarnessAdapterError}
     * when nothing matches.
     */
    get(id: string): HarnessAdapterInfo;
}
/**
 * Build a registry from an adapter list. Duplicate ids are a programming
 * error and throw at construction time rather than at lookup time.
 */
export declare function createHarnessAdapterRegistry(adapters: readonly HarnessAdapterInfo[]): HarnessAdapterRegistry;
/** All registered adapter descriptors, in registration order. */
export declare function listHarnessAdapters(): readonly HarnessAdapterInfo[];
/** Resolve an adapter descriptor by id. Throws {@link UnknownHarnessAdapterError}. */
export declare function getHarnessAdapter(id: string): HarnessAdapterInfo;
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