Commit 8ab68c9

@@ -0,0 +1,37 @@
+package ai
+
+import (
+	"sync"
+	"time"
+)
+
+type cacheEntry struct {
+	response  string
+	expiresAt time.Time
+}
+
+var (
+	cache   = make(map[string]cacheEntry)
+	cacheMu sync.RWMutex
+	cacheTTL = 5 * time.Minute
+)
+
+func getCached(prompt string) (string, bool) {
+	cacheMu.RLock()
+	defer cacheMu.RUnlock()
+
+	entry, ok := cache[prompt]
+	if !ok || time.Now().After(entry.expiresAt) {
+		return "", false
+	}
+	return entry.response, true
+}
+
+func setCached(prompt, response string) {
+	cacheMu.Lock()
+	defer cacheMu.Unlock()
+	cache[prompt] = cacheEntry{
+		response:  response,
+		expiresAt: time.Now().Add(cacheTTL),
+	}
+}