/** SQL reads used to preserve active User_Input candidates during delivery. */
import type { SqlExecutor, SqlStorageAdapter } from "../../../contracts/storage/sql.js";
/** Parameters for the active-candidate guard query. */
export interface UserInputCandidateGuardQuery {
    readonly physicalSheetId: string;
    readonly projection: string;
    readonly rowBindingId: string;
    readonly fieldNames: readonly string[];
    readonly openConflictStatus: string;
    readonly rebasedConflictStatus: string;
}
/**
 * Checks whether an effect would overwrite an active User_Input candidate.
 * Field names become bound-value placeholders; no caller value is interpolated
 * into SQL text.
 */
export declare function hasActiveUserInputCandidateWithSql(sql: SqlExecutor, query: UserInputCandidateGuardQuery): Promise<boolean>;
/** Checks the active-candidate guard through an adapter-owned read context. */
export declare function hasActiveUserInputCandidateWithAdapter(storage: SqlStorageAdapter, query: UserInputCandidateGuardQuery): Promise<boolean>;
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