/**
 * MAMA (Memory-Augmented MCP Architecture) - Memory Injection Hook
 *
 * UserPromptSubmit hook that injects decision history into Claude's context
 * Tasks: 1.1-1.9 (Hook setup, timeout handling, context injection)
 * AC #1: Query intent → Graph query → Format → Inject (5s timeout for LLM latency)
 * AC #2: No history → null (graceful fallback)
 * AC #3: Timeout → graceful fallback
 *
 * @module memory-inject
 * @version 1.0
 * @date 2025-11-14
 */
/**
 * UserPromptSubmit Hook Handler
 *
 * Task 1.1-1.9: Main entry point for memory injection
 * AC #1, #2, #3: Intent analysis → Query → Format → Inject
 *
 * @param userMessage - User's message from prompt
 * @returns Injected context or null
 */
export declare function injectDecisionContext(userMessage: string): Promise<string | null>;
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