import type { HealthWarning } from 'wicked-crew-api-types';
/** The engine's built-in seat keys (wicked-council `registry::builtin`). */
export declare const BUILTIN_SEAT_KEYS: readonly string[];
export declare const SEAT_WORK_DEFAULT_KIND = "seat.work_default";
/** What the overlay says about one seat's roles, after folding every record with its key. */
export interface OverlaySeatRoles {
    key: string;
    /** The last value a record wrote; `undefined` when none wrote the flag. */
    enabled_for_council: boolean | undefined;
    /** Some record with this key writes `seat_eligible_for_work` (true or false). */
    work_flag_written: boolean;
}
export declare function isBuiltinSeat(key: string): boolean;
/** The overlay's seats, in first-appearance order, each folded over its records. Throws on a
 *  malformed file (the caller treats that as "nothing to say"). */
export declare function readOverlaySeatRoles(text: string): OverlaySeatRoles[];
/** One `seat.work_default` warning per custom seat that is council-off with no work flag written. */
export declare function seatWorkDefaultWarnings(seats: readonly OverlaySeatRoles[]): HealthWarning[];
/** The warnings for the overlay the engine reads now. Re-read when the file changes (one `stat` per
 *  call otherwise), so an edit is reported without a restart; none when there is no overlay. */
export declare function seatWorkDefaultNow(env?: NodeJS.ProcessEnv): HealthWarning[];
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