PromptTuner MCP

// Prompt refinement cache for PromptTuner MCP // Simplified implementation using Map with FIFO eviction const MAX_CACHE_SIZE = parseInt(process.env.CACHE_MAX_SIZE ?? '1000', 10); const refinementCache = new Map<string, string>(); /** * Retrieves cached refinement result if available. */ export function getCachedRefinement( prompt: string, technique: string, format: string ): string | null { const key = `${prompt}|${technique}|${format}`; return refinementCache.get(key) ?? null; } /** * Caches a refinement result with FIFO eviction to prevent unbounded growth. */ export function setCachedRefinement( prompt: string, technique: string, format: string, refined: string ): void { // FIFO eviction: remove oldest entry when cache is full if (refinementCache.size >= MAX_CACHE_SIZE) { const firstKey = refinementCache.keys().next().value; if (firstKey !== undefined) { refinementCache.delete(firstKey); } } const key = `${prompt}|${technique}|${format}`; refinementCache.set(key, refined); } /** * Clears the refinement cache. */ export function clearCache(): void { refinementCache.clear(); }