diff --git a/src/utils/rateLimiting.ts b/src/utils/rateLimiting.ts
index f1a77b7..7ce2248 100644
--- a/src/utils/rateLimiting.ts
+++ b/src/utils/rateLimiting.ts
@@ -1,3 +1,6 @@
+/**
+ * Rate limit entry tracking request count and timestamp
+ */
 interface RateLimitEntry {
   count: number;
   timestamp: number;
@@ -6,6 +9,10 @@ interface RateLimitEntry {
 const WINDOW_SIZE_MS = 3600000; // 1 hour
 const MAX_REQUESTS = 5; // Maximum requests per hour
 
+/**
+ * Rate Limiter for API request throttling
+ * Manages rate limiting based on IP addresses with sliding window
+ */
 class RateLimiter {
   private cache: Map<string, RateLimitEntry>;
 
@@ -13,6 +20,9 @@ class RateLimiter {
     this.cache = new Map();
   }
 
+  /**
+   * Check if an IP address is currently rate limited
+   */
   isRateLimited(ip: string): boolean {
     const now = Date.now();
     const entry = this.cache.get(ip);
@@ -35,6 +45,9 @@ class RateLimiter {
     return false;
   }
 
+  /**
+   * Get remaining attempts for an IP address
+   */
   getRemainingAttempts(ip: string): number {
     const entry = this.cache.get(ip);
     if (!entry) {
@@ -43,6 +56,9 @@ class RateLimiter {
     return Math.max(0, MAX_REQUESTS - entry.count);
   }
 
+  /**
+   * Get time in milliseconds until rate limit resets for an IP
+   */
   getTimeToReset(ip: string): number {
     const entry = this.cache.get(ip);
     if (!entry) {