import type { SourceConfig } from "../types.js";
export declare function sourceRoot(agentDir: string): string;
export declare function defaultConfig(agentDir: string, model: string, reviewModel?: string): SourceConfig;
export declare function validateConfig(value: unknown): SourceConfig;
export declare function modelFamily(identity: string): string;
export declare function requireReviewModel(config: SourceConfig): string;
export declare function loadConfig(root: string): SourceConfig | undefined;
export declare function calendar(config: SourceConfig, now?: Date): {
    day: string;
    due: boolean;
};