/**
 * Default configuration constants for the DagEngine
 */
export declare const DEFAULT_ENGINE_CONFIG: {
    readonly MAX_RETRIES: 3;
    readonly RETRY_DELAY: 1000;
    readonly CONTINUE_ON_ERROR: true;
    readonly TIMEOUT: 60000;
    readonly CONCURRENCY: 5;
};
/**
 * Error messages used throughout the engine
 */
export declare const ERROR_MESSAGES: {
    readonly NO_PLUGIN: "DagEngine requires a plugin";
    readonly INVALID_CONCURRENCY: "Concurrency must be at least 1";
    readonly NO_PROVIDERS: "DagEngine requires either \"providers\" or \"registry\"";
    readonly NO_PROVIDERS_CONFIGURED: "DagEngine requires at least one provider to be configured";
    readonly NO_SECTIONS: "DagEngine.process() requires at least one section";
    readonly DEPENDENCIES_FAILED: (dimension: string) => string;
    readonly TIMEOUT: (dimension: string, timeout: number) => string;
    readonly DEPENDENCY_NOT_FOUND: (depName: string) => string;
    readonly GLOBAL_DEP_NOT_FOUND: (depName: string) => string;
    readonly SECTION_DEP_NOT_FOUND: (depName: string) => string;
    readonly SECTION_DEP_NOT_PROCESSED: (depName: string) => string;
};
/**
 * Skip reasons for dimension execution
 */
export declare const SKIP_REASONS: {
    readonly PLUGIN_SKIP_GLOBAL: "Skipped by plugin shouldSkipGlobalDimension";
    readonly PLUGIN_SKIP_SECTION: "Skipped by plugin shouldSkipSectionDimension";
};
/**
 * Metadata keys used for result tracking
 */
export declare const METADATA_KEYS: {
    readonly CACHED: "cached";
    readonly PROVIDER: "provider";
    readonly TOKENS: "tokens";
    readonly SKIPPED: "skipped";
    readonly REASON: "reason";
};
/**
 * Minimum duration for error reporting (to avoid test flakiness)
 */
export declare const MIN_ERROR_DURATION = 1;
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