import type { DB } from "../index.js";
import { CONFIG_SCHEMA } from "../../runtime-config.js";
export declare function getConfig(db: DB, key: string): Promise<string | null>;
export declare function setConfig(db: DB, key: string, value: string): Promise<void>;
export declare function deleteConfig(db: DB, key: string): Promise<void>;
export declare function getAllConfig(db: DB): Promise<Record<string, string>>;
/**
 * Get config schema with descriptions and defaults for agent discovery
 */
export declare function getConfigSchema(): typeof CONFIG_SCHEMA;
/**
 * Initialize config with defaults for any missing keys.
 * This ensures all config options are discoverable and have values.
 */
export declare function initializeConfigDefaults(db: DB): Promise<{
    initialized: string[];
    existing: string[];
}>;
/**
 * Validate a config value against its schema
 */
export declare function validateConfigValue(key: string, value: string): {
    valid: boolean;
    error?: string;
};
/**
 * Parse and validate a JSON config value
 */
export declare function parseJsonConfig<T>(value: string | null, defaultValue: T): T;
/**
 * Parse a boolean config value
 */
export declare function parseBooleanConfig(value: string | null, defaultValue: boolean): boolean;
/**
 * Parse a number config value
 */
export declare function parseNumberConfig(value: string | null, defaultValue: number): number;
/**
 * Get search limit for a specific entity type
 */
export declare function getSearchLimit(db: DB, entityType: "tags" | "facts" | "resources" | "skills" | "executionLogs"): Promise<number>;
/**
 * Get whether to include soft-deleted items in search
 */
export declare function getSearchIncludeDeleted(db: DB): Promise<boolean>;
/**
 * Get context budget for a specific entity type
 */
export declare function getContextBudget(db: DB, entityType: "facts" | "resources" | "skills"): Promise<number>;
/**
 * Get tag affinity weights for search ordering
 */
export declare function getTagAffinityWeights(db: DB): Promise<Record<string, number>>;
/**
 * Get source type trust levels
 */
export declare function getSourceTypeTrust(db: DB): Promise<Record<string, number>>;
/**
 * Get staleness warning threshold (0.0 to 1.0)
 */
export declare function getStalenessWarningThreshold(db: DB): Promise<number>;
/**
 * Get snapshot max size in KB
 */
export declare function getSnapshotMaxSizeKb(db: DB): Promise<number>;
/**
 * Get snapshot overflow behavior
 */
export declare function getSnapshotOverflowBehavior(db: DB): Promise<"truncate" | "summarize" | "remove_noise" | "auto">;
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