/**
 * Descriptor capability required before a supervisor may signal a live daemon.
 * Bump this exact value whenever shutdown safety depends on a protocol that an
 * already-running older daemon does not implement.
 */
export declare const SUPERVISOR_SHUTDOWN_PROTOCOL: "riff-fleet-prepare-persist-commit-managed-sentinel-v3";
/**
 * PM2 normalizes signal-only child exits to code 0 (`code || 0`) before it
 * evaluates `stop_exit_codes`. Zero therefore cannot prove that the daemon
 * completed the protocol above: SIGKILL/OOM may look identical. Only the
 * successful end of a PM2-managed daemon.shutdown() exits with this reserved
 * non-zero code; foreground launches keep the conventional zero exit.
 */
export declare const DAEMON_GRACEFUL_EXIT_CODE = 90;
export type SupervisorShutdownProtocol = typeof SUPERVISOR_SHUTDOWN_PROTOCOL;
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