export type CavemanLevel = "off" | "lite" | "full" | "ultra";
export type CavemanAction = CavemanLevel | "status";
export declare const CAVEMAN_COMMAND_USAGE = "Usage: /caveman [lite|full|ultra|off|status]";
export interface CavemanCommandTarget {
    cavemanLevel: CavemanLevel;
    setCavemanLevel(level: CavemanLevel): void;
}
/**
 * Parse a caveman command from input text.
 * Returns the action or undefined if not a caveman command.
 *
 * Handles:
 * - `/caveman` alone → defaults to "full"
 * - `/caveman <level>` where level is lite|full|ultra|off|status
 * - Natural language phrases via parseCavemanNaturalLanguage
 */
export declare function parseCavemanCommand(text: string): CavemanAction | undefined;
/**
 * Parse natural language phrases for caveman activation/deactivation.
 * Uses WORD-BOUNDARY matching to avoid false positives.
 *
 * Activation phrases (maps to "full"): "caveman mode", "talk like caveman", "be brief",
 * "less tokens", "me caveman", "caveman style", "make it briefer", "shorter please"
 *
 * Deactivation phrases (maps to "off"): "normal mode", "stop caveman"
 *
 * @returns "full" for activation, "off" for deactivation, undefined if no match
 */
export declare function parseCavemanNaturalLanguage(text: string): CavemanLevel | undefined;
/**
 * Run a caveman command on the target session.
 * Returns a status string describing the result.
 */
export declare function runCavemanCommand(target: CavemanCommandTarget, action: CavemanAction): string;
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