/**
 * Supervisor-mode resource admission client (T12001 · Epic T11992).
 *
 * The `supervisor`-mode counterpart of the {@link ResourceGovernor}'s local slot
 * engine. Where local mode arbitrates heavy-op concurrency through cross-process
 * lockfiles, supervisor mode routes the `resource_admit` / `resource_release`
 * lease-ipc verbs to the Rust `cleo-supervisor` so a single in-memory counter is
 * the machine-wide source of truth.
 *
 * A dead/absent supervisor must NEVER deadlock work: every send degrades to
 * `{ unavailable }` on any transport error, and the governor falls back to the
 * local slot engine. Mirrors the `llm-queue-admit.ts` transport (core cannot
 * import `@cleocode/runtime` — a cycle — so it speaks the NDJSON codec directly
 * through the shared `@cleocode/contracts` lease-ipc Zod schemas).
 *
 * @task T12001
 * @epic T11992
 */
import { type ResourceAdmitResultResponse, type ResourceReleaseResultResponse } from '@cleocode/contracts';
/** A transport-unavailable sentinel — the caller degrades to the local engine. */
export interface SupervisorUnavailable {
    readonly unavailable: true;
    readonly reason: string;
}
/**
 * Resolve the supervisor socket path: `$CLEO_SUPERVISOR_SOCKET` overrides,
 * otherwise `<cleoHome>/cleo-supervisor.sock`.
 */
export declare function resolveSupervisorSocketPath(): string;
/**
 * Admit (or defer) a heavy op of `cls` for `holderId` against `budget` through
 * the supervisor's central arbiter. Resolves the `resource_admit_result` reply,
 * or `{ unavailable }` when the supervisor cannot arbitrate (degrade to local).
 */
export declare function sendResourceAdmit(socketPath: string, cls: string, holderId: string, budget: number): Promise<ResourceAdmitResultResponse | SupervisorUnavailable>;
/**
 * Release a previously-admitted slot of `cls` for `holderId`. Resolves the
 * `resource_release_result` reply, or `{ unavailable }` on transport failure
 * (the slot self-heals via the arbiter's process-death reclaim / stale recovery).
 */
export declare function sendResourceRelease(socketPath: string, cls: string, holderId: string): Promise<ResourceReleaseResultResponse | SupervisorUnavailable>;
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