/**
 * Skip flow mode: classify user input to determine if flow orchestration is needed.
 *
 * Two-tier classification:
 * 1. Regex fast path — catches clear-cut cases with zero latency
 * 2. LLM fallback — handles ambiguous cases for accurate classification
 *
 * Design principles:
 * - Pure functions where possible
 * - LLM call is async and isolated
 * - Testable with mocks
 * - Debug logging for auditability
 */
export interface SkipFlowConfig {
    enabled: boolean;
    debugMode?: boolean;
}
export type TaskClassification = "single-purpose" | "orchestrated" | "uncertain";
export interface ClassificationResult {
    classification: TaskClassification;
    source: "regex" | "llm";
    matches: string[];
}
export declare function clearClassificationCache(): void;
/**
 * Try to classify using regex patterns.
 * Returns "uncertain" if no pattern matches definitively.
 */
export declare function classifyByRegex(message: string): {
    classification: TaskClassification;
    matches: string[];
};
/**
 * Classify using LLM for uncertain cases.
 */
export declare function classifyByLLM(message: string, model: any, apiKey: string, headers?: Record<string, string>, debugMode?: boolean): Promise<{
    classification: TaskClassification;
    matches: string[];
}>;
export interface ClassifyDeps {
    model?: any;
    apiKey?: string;
    headers?: Record<string, string>;
}
/**
 * Classify a user message as single-purpose or orchestrated.
 * Uses regex fast path first, falls back to LLM for uncertain cases.
 */
export declare function classifyTask(message: string, config: SkipFlowConfig, deps?: ClassifyDeps): Promise<ClassificationResult>;
/**
 * Get active tools based on skip flow analysis.
 * If skip flow is enabled and task is single-purpose, exclude flow tool.
 */
export declare function getSkipFlowTools(baseTools: string[], message: string, config: SkipFlowConfig, deps?: ClassifyDeps): Promise<string[]>;
/**
 * Check if flow is needed for a given message.
 * Convenience wrapper for boolean checks.
 */
export declare function needsFlow(message: string, config: SkipFlowConfig, deps?: ClassifyDeps): Promise<boolean>;
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