/**
 * Per-external-scanner supervision facts, produced OUTSIDE the scanners module
 * (intake liveness clock + process supervisor) and attached via
 * ScannersRuntimeModule.attachSupervisionSource(). The module is the single
 * consumer: all health derivation happens there. Keyed by configured scanner
 * NAME (stable across relaunch; scanner ids are re-minted on restart).
 */
export interface ScannerSupervisionRow {
    scannerName: string;
    /** Supervisor's crash-loop verdict ("degraded" = rapid-failure guard tripped). */
    supervisorStatus: "healthy" | "degraded";
    /** Cumulative child restarts since runtime start. */
    restartCount: number;
    /**
     * Configured POST cadence in seconds (recipe `interval_seconds`), carried from the
     * launcher spec. The engine registration reports `intervalSeconds: 0` for external
     * scanners (they never run on a timer), so the silence-window derivation reads THIS
     * real cadence — absent it would floor at 30s and falsely flap slow scanners.
     * Optional: derivation falls back to the registration `intervalSeconds` when unset.
     */
    intervalSeconds?: number;
    /** Last POST heard from the scaffold child (epoch ms), null = never heard. */
    lastAliveAt: number | null;
    /** Human cause for a degraded supervisor (last exit summary), if known. */
    degradedReason?: string;
}
export interface ScannerSupervision {
    /**
     * True when the runtime's external scanners never wired (mount/launch threw):
     * the runtime is running with NO live entry scanners. rows may be empty.
     */
    unwired: boolean;
    /** Phase that failed when unwired ("mount" | "launch" | "install_launch" | "install_wire"). */
    unwiredPhase?: string;
    rows: ScannerSupervisionRow[];
}
export type ScannerSupervisionSource = () => ScannerSupervision;
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