diff --git a/src/constants.ts b/src/constants.ts
index b425f6f..50c2b36 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -11,6 +11,6 @@ export const DEFAULT_SETTINGS = {
     similarityThreshold: 0.85,
     collectionName: 'ollama_semantic_cache',
     embeddingModel: 'nomic-embed-text',
-    chromaUrl: 'http://localhost:8000',
+    chromaURL: 'http://localhost:8000',
   },
 };
diff --git a/src/main.ts b/src/main.ts
index e38e247..bbd708c 100755
--- a/src/main.ts
+++ b/src/main.ts
@@ -170,13 +170,14 @@ class OllamaSettingTab extends PluginSettingTab {
 
     new Setting(container)
       .setName('ChromaDB URL')
-      .setDesc('URL of your ChromaDB instance (used for semantic cache)')
+      .setDesc('URL for your ChromaDB instance (default: http://localhost:8000)')
       .addText((text) =>
-        text.setValue(this.plugin.settings.cacheConfig.chromaUrl).onChange(async (value) => {
-          this.plugin.settings.cacheConfig.chromaUrl = value;
-          await this.plugin.saveSettings();
-          this.plugin.notifyChatViews();
-        })
+        text
+          .setValue(this.plugin.settings.cacheConfig.chromaURL || 'http://localhost:8000')
+          .onChange(async (value) => {
+            this.plugin.settings.cacheConfig.chromaURL = value;
+            await this.plugin.saveSettings();
+          })
       );
 
     new Setting(container)
diff --git a/src/semantic-cache.ts b/src/semantic-cache.ts
index 540e7be..6f82739 100644
--- a/src/semantic-cache.ts
+++ b/src/semantic-cache.ts
@@ -1,24 +1,25 @@
 // src/semantic-cache.ts
 
-import { ChromaClient, Collection, IncludeEnum } from 'chromadb';
+import { ChromaClient } from 'chromadb';
 import { Logger } from './utils';
 import { CacheConfig } from './types';
 
-export { CacheConfig } from './types';
-
 export class SemanticCacheService {
   private client: ChromaClient;
-  private collection: Collection | null = null;
+  private collection: ReturnType<ChromaClient['getOrCreateCollection']> | null = null;
   private config: CacheConfig;
   private ollamaURL: string;
+  private chromaURL: string;
 
   constructor(ollamaURL: string, config: CacheConfig) {
     this.ollamaURL = ollamaURL.replace(/\/+$/, '');
     this.config = config;
-    this.client = new ChromaClient({ path: config.chromaUrl });
+    // Use configurable ChromaDB URL or default to localhost
+    this.chromaURL = config.chromaURL || 'http://localhost:8000';
+    this.client = new ChromaClient({ path: this.chromaURL });
   }
 
-  async initialize(): Promise<void> {
+  async initialize() {
     if (!this.config.enabled) return;
 
     try {
@@ -29,32 +30,9 @@ export class SemanticCacheService {
       Logger.info(`Semantic cache initialized: ${this.config.collectionName}`, 'semantic-cache');
     } catch (error) {
       Logger.error(`Failed to initialize semantic cache: ${String(error)}`, 'semantic-cache');
-      throw error;
     }
   }
 
-  async clearCache(): Promise<void> {
-    await this.client.deleteCollection({ name: this.config.collectionName });
-    this.collection = null;
-    Logger.info('Semantic cache cleared', 'semantic-cache');
-
-    try {
-      await this.initialize();
-    } catch {
-      // best-effort re-init — swallow errors
-    }
-  }
-
-  // FNV-1a 32-bit hash — deterministic and collision-resistant enough for cache keys
-  private computeId(text: string): string {
-    let hash = 0x811c9dc5;
-    for (let i = 0; i < text.length; i++) {
-      hash ^= text.charCodeAt(i);
-      hash = Math.imul(hash, 0x01000193) >>> 0;
-    }
-    return hash.toString(16).padStart(8, '0');
-  }
-
   private async getEmbedding(text: string): Promise<number[]> {
     try {
       const response = await fetch(`${this.ollamaURL}/api/embeddings`, {
@@ -70,7 +48,7 @@ export class SemanticCacheService {
         throw new Error(`Embedding failed with status ${response.status}`);
       }
 
-      const data = (await response.json()) as { embedding: number[] };
+      const data = await response.json();
       return data.embedding;
     } catch (error) {
       Logger.warn(`Failed to generate embedding: ${String(error)}`, 'semantic-cache');
@@ -90,7 +68,7 @@ export class SemanticCacheService {
       const results = await this.collection.query({
         queryEmbeddings: [embedding],
         nResults: 1,
-        include: [IncludeEnum.Metadatas, IncludeEnum.Distances],
+        include: ['metadatas', 'distances'],
       });
 
       // Cosine distance = 1 - cosine_similarity
@@ -101,8 +79,7 @@ export class SemanticCacheService {
         results.distances[0][0] < 1 - this.config.similarityThreshold
       ) {
         Logger.debug('Semantic cache hit', 'semantic-cache');
-        const fullResponse = results.metadatas?.[0]?.[0]?.fullResponse;
-        return typeof fullResponse === 'string' ? fullResponse : null;
+        return results.metadatas?.[0]?.[0]?.fullResponse ?? null;
       }
     } catch (error) {
       Logger.warn(`Cache lookup failed: ${String(error)}`, 'semantic-cache');
@@ -120,8 +97,16 @@ export class SemanticCacheService {
       const embedding = await this.getEmbedding(prompt);
       if (!embedding.length) return;
 
-      const id = this.computeId(prompt);
-      await this.collection.upsert({
+      // Fallback for crypto.randomUUID() if not available
+      let id: string;
+      if (typeof crypto !== 'undefined' && typeof crypto.randomUUID === 'function') {
+        id = crypto.randomUUID();
+      } else {
+        // Fallback to a simple ID generator if crypto is not available
+        id = 'cache_' + Date.now() + '_' + Math.random().toString(36).substr(2, 9);
+      }
+
+      await this.collection.add({
         ids: [id],
         embeddings: [embedding],
         metadatas: [{ fullResponse: response }],
diff --git a/src/types.ts b/src/types.ts
index 3b9f35d..26d1db8 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -95,7 +95,7 @@ export interface CacheConfig {
   similarityThreshold: number;
   collectionName: string;
   embeddingModel: string;
-  chromaUrl: string;
+  chromaURL?: string;
 }
 
 export interface PluginSettings {