/**
 * Debug-trace areas (#213 diagnostics). Each area is gated by its own `DEBUG_*`
 * env var — uniform with the existing DEBUG_CONTROLLER / DEBUG_SMART_AGENT flags.
 * Off by default. Adding a new area = one entry here.
 */
export type DebugArea = 'llm' | 'controller' | 'mcp' | 'rag';
export declare const DEBUG_ENV: Record<DebugArea, string>;
/** True when the area's `DEBUG_*` env var is set to a non-empty value. */
export declare function isDebugArea(area: DebugArea): boolean;
/** The set of areas whose `DEBUG_*` flag is currently on. */
export declare function enabledAreasFromEnv(): Set<DebugArea>;
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