import type { HookInput, GuardResult } from '../../core/index.js';
/**
 * Session-briefing guard: fires PostToolUse on all tools.
 * Injects sprint context on the very first tool call of a session.
 * Non-blocking (context-only) to avoid suggestion fatigue.
 */
export declare function sessionBriefingGuard(input: HookInput, cwd: string): Promise<GuardResult>;
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