Release v2.8.1

- Remove ai-sdk-backbone-verification.md (all tasks completed)
- Update package.json version from 1.3.5 to 1.3.6
- Refactor agent classes to use lazy-loaded AI SDK backend via resolveBackend()
- Convert direct createProvider() calls to async getProvider() pattern
- Add provider promise caching to prevent duplicate backend initialization
- Update ContextAgent, EnhancedAgent, ImageAgent, and PromptExpanderAgent classes

docker/Dockerfile.chat

@@ -16,7 +16,7 @@ RUN mkdir -p /root/.praison
 # Install Python packages (using latest versions)
 RUN pip install --no-cache-dir \
     praisonai_tools \
-    "praisonai>=2.7.9" \
+    "praisonai>=2.8.1" \
     "praisonai[chat]" \
     "embedchain[github,youtube]"
 

docker/Dockerfile.dev

@@ -20,7 +20,7 @@ RUN mkdir -p /root/.praison
 # Install Python packages (using latest versions)
 RUN pip install --no-cache-dir \
     praisonai_tools \
-    "praisonai>=2.7.9" \
+    "praisonai>=2.8.1" \
     "praisonai[ui]" \
     "praisonai[chat]" \
     "praisonai[realtime]" \

docker/Dockerfile.ui

@@ -16,7 +16,7 @@ RUN mkdir -p /root/.praison
 # Install Python packages (using latest versions)
 RUN pip install --no-cache-dir \
     praisonai_tools \
-    "praisonai>=2.7.9" \
+    "praisonai>=2.8.1" \
     "praisonai[ui]" \
     "praisonai[crewai]"
 

examples/js/ai-sdk/README.md

@@ -0,0 +1,41 @@
+# AI SDK Examples
+
+Examples demonstrating the AI SDK integration in PraisonAI TypeScript.
+
+## Prerequisites
+
+```bash
+npm install praisonai ai @ai-sdk/openai @ai-sdk/anthropic @ai-sdk/google zod
+```
+
+## Environment Variables
+
+```bash
+export OPENAI_API_KEY=sk-...
+export ANTHROPIC_API_KEY=sk-ant-...
+export GOOGLE_API_KEY=AIza...
+```
+
+## Examples
+
+| File | Description |
+|------|-------------|
+| `basic-chat.ts` | Simple text generation |
+| `streaming.ts` | Streaming text output |
+| `tool-calling.ts` | Function/tool calling |
+| `multi-provider.ts` | Using multiple providers |
+| `structured-output.ts` | JSON schema output |
+| `multi-agent.ts` | Multi-agent attribution |
+
+## Running Examples
+
+```bash
+npx ts-node basic-chat.ts
+npx ts-node streaming.ts
+npx ts-node tool-calling.ts
+```
+
+## More Information
+
+- [AI SDK Documentation](https://docs.praisonai.com/docs/js/ai-sdk)
+- [AI SDK CLI](https://docs.praisonai.com/docs/js/ai-sdk-cli)

examples/js/ai-sdk/basic-chat.ts

@@ -0,0 +1,39 @@
+/**
+ * AI SDK Basic Chat Example
+ * 
+ * Demonstrates simple text generation using the AI SDK backend.
+ * 
+ * Usage:
+ *   npx ts-node basic-chat.ts
+ * 
+ * Environment:
+ *   OPENAI_API_KEY - Your OpenAI API key
+ */
+
+import { createAISDKBackend } from 'praisonai';
+
+async function main() {
+  // Create backend with model string
+  const backend = createAISDKBackend('openai/gpt-4o-mini');
+
+  console.log('Sending message to OpenAI...\n');
+
+  // Generate text
+  const result = await backend.generateText({
+    messages: [
+      { role: 'system', content: 'You are a helpful assistant.' },
+      { role: 'user', content: 'What are the three primary colors?' }
+    ],
+    maxTokens: 200,
+    temperature: 0.7,
+  });
+
+  console.log('Response:', result.text);
+  console.log('\nFinish reason:', result.finishReason);
+  
+  if (result.usage) {
+    console.log('Token usage:', result.usage);
+  }
+}
+
+main().catch(console.error);

examples/js/ai-sdk/multi-agent.ts

@@ -0,0 +1,96 @@
+/**
+ * AI SDK Multi-Agent Attribution Example
+ * 
+ * Demonstrates how to propagate attribution context (agentId, runId, traceId)
+ * to LLM calls for multi-agent observability and safety.
+ * 
+ * Usage:
+ *   npx ts-node multi-agent.ts
+ * 
+ * Environment:
+ *   OPENAI_API_KEY - Your OpenAI API key
+ */
+
+import { createAISDKBackend } from 'praisonai';
+
+// Simulate a multi-agent system with attribution
+interface AgentContext {
+  agentId: string;
+  runId: string;
+  traceId: string;
+  sessionId?: string;
+}
+
+async function runAgent(name: string, task: string, context: AgentContext) {
+  console.log(`\n[${name}] Starting task: ${task}`);
+  console.log(`  Attribution: agentId=${context.agentId}, runId=${context.runId}`);
+
+  const backend = createAISDKBackend('openai/gpt-4o-mini', {
+    attribution: context,
+    timeout: 30000,
+  });
+
+  const result = await backend.generateText({
+    messages: [
+      { role: 'system', content: `You are ${name}, a specialized AI agent.` },
+      { role: 'user', content: task }
+    ],
+    maxTokens: 100,
+  });
+
+  console.log(`  Response: ${result.text.slice(0, 100)}...`);
+  return result.text;
+}
+
+async function main() {
+  // Create a shared trace ID for the entire workflow
+  const traceId = `trace-${Date.now().toString(36)}`;
+  const sessionId = 'session-user123';
+
+  console.log('Multi-Agent Workflow with Attribution');
+  console.log('=====================================');
+  console.log(`Trace ID: ${traceId}`);
+  console.log(`Session ID: ${sessionId}`);
+
+  // Agent 1: Research Agent
+  const researchResult = await runAgent(
+    'ResearchAgent',
+    'What are the key benefits of TypeScript?',
+    {
+      agentId: 'agent-research',
+      runId: `run-${Date.now().toString(36)}-1`,
+      traceId,
+      sessionId,
+    }
+  );
+
+  // Agent 2: Summary Agent
+  const summaryResult = await runAgent(
+    'SummaryAgent',
+    `Summarize this in one sentence: ${researchResult}`,
+    {
+      agentId: 'agent-summary',
+      runId: `run-${Date.now().toString(36)}-2`,
+      traceId,
+      sessionId,
+    }
+  );
+
+  // Agent 3: Review Agent
+  await runAgent(
+    'ReviewAgent',
+    `Review this summary for accuracy: ${summaryResult}`,
+    {
+      agentId: 'agent-review',
+      runId: `run-${Date.now().toString(36)}-3`,
+      traceId,
+      sessionId,
+    }
+  );
+
+  console.log('\n\nWorkflow complete!');
+  console.log('All requests were tagged with the same trace ID for observability.');
+  console.log('Check your LLM provider dashboard to see the correlated requests.');
+}
+
+main().catch(console.error);

examples/js/ai-sdk/multi-provider.ts

@@ -0,0 +1,59 @@
+/**
+ * AI SDK Multi-Provider Example
+ * 
+ * Demonstrates using multiple LLM providers with the same interface.
+ * 
+ * Usage:
+ *   npx ts-node multi-provider.ts
+ * 
+ * Environment:
+ *   OPENAI_API_KEY - Your OpenAI API key
+ *   ANTHROPIC_API_KEY - Your Anthropic API key
+ *   GOOGLE_API_KEY - Your Google API key
+ */
+
+import { createAISDKBackend } from 'praisonai';
+
+const PROMPT = 'Explain what an API is in one sentence.';
+
+async function testProvider(modelString: string) {
+  try {
+    const backend = createAISDKBackend(modelString, {
+      timeout: 30000,
+    });
+
+    const startTime = Date.now();
+    const result = await backend.generateText({
+      messages: [{ role: 'user', content: PROMPT }],
+      maxTokens: 100,
+    });
+    const duration = Date.now() - startTime;
+
+    console.log(`\n${modelString}:`);
+    console.log(`  Response: ${result.text}`);
+    console.log(`  Duration: ${duration}ms`);
+    return true;
+  } catch (error: any) {
+    console.log(`\n${modelString}:`);
+    console.log(`  Error: ${error.message}`);
+    return false;
+  }
+}
+
+async function main() {
+  console.log('Testing multiple providers with the same prompt...');
+  console.log(`Prompt: "${PROMPT}"`);
+
+  const providers = [
+    'openai/gpt-4o-mini',
+    'anthropic/claude-3-haiku-20240307',
+    'google/gemini-1.5-flash',
+  ];
+
+  const results = await Promise.all(providers.map(testProvider));
+  
+  const successful = results.filter(Boolean).length;
+  console.log(`\n\nSummary: ${successful}/${providers.length} providers succeeded`);
+}
+
+main().catch(console.error);

examples/js/ai-sdk/streaming.ts

@@ -0,0 +1,39 @@
+/**
+ * AI SDK Streaming Example
+ * 
+ * Demonstrates streaming text generation with real-time output.
+ * 
+ * Usage:
+ *   npx ts-node streaming.ts
+ * 
+ * Environment:
+ *   OPENAI_API_KEY - Your OpenAI API key
+ */
+
+import { createAISDKBackend } from 'praisonai';
+
+async function main() {
+  const backend = createAISDKBackend('openai/gpt-4o-mini');
+
+  console.log('Streaming response from OpenAI...\n');
+
+  const stream = await backend.streamText({
+    messages: [
+      { role: 'user', content: 'Write a short poem about coding.' }
+    ],
+    maxTokens: 200,
+  });
+
+  // Stream chunks as they arrive
+  for await (const chunk of stream) {
+    if (chunk.text) {
+      process.stdout.write(chunk.text);
+    }
+    
+    if (chunk.finishReason) {
+      console.log('\n\nFinish reason:', chunk.finishReason);
+    }
+  }
+}
+
+main().catch(console.error);

examples/js/ai-sdk/structured-output.ts

@@ -0,0 +1,72 @@
+/**
+ * AI SDK Structured Output Example
+ * 
+ * Demonstrates generating typed JSON objects with Zod schemas.
+ * 
+ * Usage:
+ *   npx ts-node structured-output.ts
+ * 
+ * Environment:
+ *   OPENAI_API_KEY - Your OpenAI API key
+ */
+
+import { generateObject } from 'ai';
+import { openai } from '@ai-sdk/openai';
+import { z } from 'zod';
+
+// Define schema for a person profile
+const PersonSchema = z.object({
+  name: z.string().describe('Full name'),
+  age: z.number().describe('Age in years'),
+  occupation: z.string().describe('Job title'),
+  city: z.string().describe('City of residence'),
+  interests: z.array(z.string()).describe('List of hobbies/interests'),
+  bio: z.string().describe('Short biography'),
+});
+
+// Define schema for a recipe
+const RecipeSchema = z.object({
+  name: z.string().describe('Recipe name'),
+  cuisine: z.string().describe('Type of cuisine'),
+  prepTime: z.number().describe('Preparation time in minutes'),
+  cookTime: z.number().describe('Cooking time in minutes'),
+  servings: z.number().describe('Number of servings'),
+  ingredients: z.array(z.object({
+    item: z.string(),
+    amount: z.string(),
+  })).describe('List of ingredients'),
+  instructions: z.array(z.string()).describe('Step-by-step instructions'),
+});
+
+async function main() {
+  console.log('Generating structured output with Zod schemas...\n');
+
+  // Generate a person profile
+  console.log('1. Generating a fictional person profile...');
+  const personResult = await generateObject({
+    model: openai('gpt-4o-mini'),
+    schema: PersonSchema,
+    prompt: 'Generate a fictional software engineer profile.',
+  });
+
+  console.log('Person:', JSON.stringify(personResult.object, null, 2));
+
+  // Generate a recipe
+  console.log('\n2. Generating a recipe...');
+  const recipeResult = await generateObject({
+    model: openai('gpt-4o-mini'),
+    schema: RecipeSchema,
+    prompt: 'Generate a simple pasta recipe.',
+  });
+
+  console.log('Recipe:', JSON.stringify(recipeResult.object, null, 2));
+
+  // Type-safe access
+  console.log('\n3. Type-safe access:');
+  console.log(`  Person name: ${personResult.object.name}`);
+  console.log(`  Person age: ${personResult.object.age}`);
+  console.log(`  Recipe name: ${recipeResult.object.name}`);
+  console.log(`  Total time: ${recipeResult.object.prepTime + recipeResult.object.cookTime} minutes`);
+}
+
+main().catch(console.error);

examples/js/ai-sdk/tool-calling.ts

@@ -0,0 +1,75 @@
+/**
+ * AI SDK Tool Calling Example
+ * 
+ * Demonstrates function/tool calling with Zod schemas.
+ * 
+ * Usage:
+ *   npx ts-node tool-calling.ts
+ * 
+ * Environment:
+ *   OPENAI_API_KEY - Your OpenAI API key
+ */
+
+import { generateText, tool } from 'ai';
+import { openai } from '@ai-sdk/openai';
+import { z } from 'zod';
+
+// Define tools with Zod schemas
+const tools = {
+  get_weather: tool({
+    description: 'Get the current weather for a city',
+    inputSchema: z.object({
+      city: z.string().describe('The city name'),
+      unit: z.enum(['celsius', 'fahrenheit']).optional().describe('Temperature unit'),
+    }),
+    execute: async ({ city, unit = 'celsius' }) => {
+      // Mock weather data
+      const weather = {
+        city,
+        temperature: unit === 'celsius' ? 22 : 72,
+        unit,
+        condition: 'sunny',
+        humidity: 45,
+      };
+      return weather;
+    },
+  }),
+  
+  get_time: tool({
+    description: 'Get the current time in a timezone',
+    inputSchema: z.object({
+      timezone: z.string().describe('Timezone like "America/New_York"'),
+    }),
+    execute: async ({ timezone }) => {
+      const time = new Date().toLocaleString('en-US', { timeZone: timezone });
+      return { timezone, time };
+    },
+  }),
+};
+
+async function main() {
+  console.log('Asking about weather with tool calling...\n');
+
+  const result = await generateText({
+    model: openai('gpt-4o-mini'),
+    messages: [
+      { role: 'user', content: 'What is the weather in Paris and what time is it in New York?' }
+    ],
+    tools,
+    maxSteps: 5, // Allow multiple tool calls
+  });
+
+  console.log('Tool Calls:');
+  for (const toolCall of result.toolCalls) {
+    console.log(`  - ${toolCall.toolName}:`, toolCall.args);
+  }
+
+  console.log('\nTool Results:');
+  for (const toolResult of result.toolResults) {
+    console.log(`  - ${toolResult.toolName}:`, toolResult.result);
+  }
+
+  console.log('\nFinal Response:', result.text);
+}
+
+main().catch(console.error);

examples/js/embeddings/embed-basic.ts

@@ -0,0 +1,65 @@
+/**
+ * Basic Embedding Example
+ * 
+ * Demonstrates using Agent.embed() for text embeddings
+ * 
+ * Run: npx ts-node examples/js/embeddings/embed-basic.ts
+ */
+
+import { Agent } from '../../../src/praisonai-ts/dist/agent/simple';
+import { embed, embedMany, cosineSimilarity } from '../../../src/praisonai-ts/dist/llm/embeddings';
+
+async function main() {
+  console.log('=== Basic Embedding Example ===\n');
+
+  // Method 1: Using Agent.embed()
+  console.log('1. Agent.embed() - Single text');
+  const agent = new Agent({
+    instructions: 'You are a helpful assistant',
+    llm: 'openai/gpt-4o-mini',
+    verbose: false
+  });
+
+  const singleEmbedding = await agent.embed('Hello world');
+  console.log(`   Dimensions: ${(singleEmbedding as number[]).length}`);
+  console.log(`   First 5 values: [${(singleEmbedding as number[]).slice(0, 5).map(v => v.toFixed(4)).join(', ')}...]`);
+
+  // Method 2: Using Agent.embed() with multiple texts
+  console.log('\n2. Agent.embed() - Multiple texts');
+  const multiEmbeddings = await agent.embed(['Hello', 'World', 'How are you?']);
+  console.log(`   Count: ${(multiEmbeddings as number[][]).length}`);
+  console.log(`   Each has ${(multiEmbeddings as number[][])[0].length} dimensions`);
+
+  // Method 3: Direct embed function
+  console.log('\n3. Direct embed() function');
+  const result = await embed('PraisonAI is an AI agent framework');
+  console.log(`   Dimensions: ${result.embedding.length}`);
+  console.log(`   Tokens used: ${result.usage?.tokens || 'N/A'}`);
+
+  // Method 4: Batch embeddings
+  console.log('\n4. Batch embedMany() function');
+  const texts = [
+    'Machine learning is a subset of AI',
+    'Deep learning uses neural networks',
+    'Natural language processing handles text'
+  ];
+  const batchResult = await embedMany(texts);
+  console.log(`   Embedded ${batchResult.embeddings.length} texts`);
+  console.log(`   Total tokens: ${batchResult.usage?.tokens || 'N/A'}`);
+
+  // Method 5: Similarity comparison
+  console.log('\n5. Cosine Similarity');
+  const emb1 = await embed('I love programming');
+  const emb2 = await embed('Coding is my passion');
+  const emb3 = await embed('The weather is nice today');
+
+  const sim12 = cosineSimilarity(emb1.embedding, emb2.embedding);
+  const sim13 = cosineSimilarity(emb1.embedding, emb3.embedding);
+
+  console.log(`   "I love programming" vs "Coding is my passion": ${(sim12 * 100).toFixed(1)}%`);
+  console.log(`   "I love programming" vs "The weather is nice": ${(sim13 * 100).toFixed(1)}%`);
+
+  console.log('\n=== Complete ===');
+}
+
+main().catch(console.error);

examples/js/embeddings/embed-docs.ts

@@ -0,0 +1,119 @@
+/**
+ * Document Embedding Example
+ * 
+ * Demonstrates chunking and embedding documents for retrieval
+ * 
+ * Run: npx ts-node examples/js/embeddings/embed-docs.ts
+ */
+
+import { embedMany, cosineSimilarity } from '../../../src/praisonai-ts/dist/llm/embeddings';
+
+// Sample documents
+const documents = [
+  {
+    id: 'doc1',
+    title: 'Introduction to AI',
+    content: 'Artificial Intelligence (AI) is the simulation of human intelligence by machines. It includes machine learning, natural language processing, and computer vision.'
+  },
+  {
+    id: 'doc2',
+    title: 'Machine Learning Basics',
+    content: 'Machine learning is a subset of AI that enables systems to learn from data. It includes supervised learning, unsupervised learning, and reinforcement learning.'
+  },
+  {
+    id: 'doc3',
+    title: 'Deep Learning',
+    content: 'Deep learning uses neural networks with multiple layers. It excels at tasks like image recognition, speech processing, and natural language understanding.'
+  },
+  {
+    id: 'doc4',
+    title: 'Natural Language Processing',
+    content: 'NLP enables computers to understand human language. Applications include chatbots, translation, sentiment analysis, and text summarization.'
+  },
+  {
+    id: 'doc5',
+    title: 'Computer Vision',
+    content: 'Computer vision allows machines to interpret visual information. It powers applications like facial recognition, autonomous vehicles, and medical imaging.'
+  }
+];
+
+interface EmbeddedDocument {
+  id: string;
+  title: string;
+  content: string;
+  embedding: number[];
+}
+
+async function main() {
+  console.log('=== Document Embedding Example ===\n');
+
+  // Step 1: Embed all documents
+  console.log('1. Embedding documents...');
+  const contents = documents.map(d => d.content);
+  const { embeddings } = await embedMany(contents);
+  
+  const embeddedDocs: EmbeddedDocument[] = documents.map((doc, i) => ({
+    ...doc,
+    embedding: embeddings[i]
+  }));
+  
+  console.log(`   Embedded ${embeddedDocs.length} documents`);
+  console.log(`   Embedding dimensions: ${embeddings[0].length}`);
+
+  // Step 2: Search function
+  async function search(query: string, topK: number = 3): Promise<Array<{ doc: EmbeddedDocument; score: number }>> {
+    const { embedding: queryEmbedding } = await (await import('../../../src/praisonai-ts/dist/llm/embeddings')).embed(query);
+    
+    const results = embeddedDocs.map(doc => ({
+      doc,
+      score: cosineSimilarity(queryEmbedding, doc.embedding)
+    }));
+    
+    return results
+      .sort((a, b) => b.score - a.score)
+      .slice(0, topK);
+  }
+
+  // Step 3: Test queries
+  console.log('\n2. Testing search queries...\n');
+
+  const queries = [
+    'How do machines learn from data?',
+    'What is image recognition?',
+    'Tell me about chatbots and translation'
+  ];
+
+  for (const query of queries) {
+    console.log(`Query: "${query}"`);
+    const results = await search(query);
+    
+    console.log('Top results:');
+    results.forEach((r, i) => {
+      console.log(`  ${i + 1}. [${(r.score * 100).toFixed(1)}%] ${r.doc.title}`);
+    });
+    console.log('');
+  }
+
+  // Step 4: Show document similarity matrix
+  console.log('3. Document Similarity Matrix');
+  console.log('');
+  
+  // Header
+  process.stdout.write('         ');
+  documents.forEach((_, i) => process.stdout.write(`Doc${i + 1}  `));
+  console.log('');
+  
+  // Matrix
+  for (let i = 0; i < embeddedDocs.length; i++) {
+    process.stdout.write(`Doc${i + 1}     `);
+    for (let j = 0; j < embeddedDocs.length; j++) {
+      const sim = cosineSimilarity(embeddedDocs[i].embedding, embeddedDocs[j].embedding);
+      process.stdout.write(`${(sim * 100).toFixed(0).padStart(3)}%  `);
+    }
+    console.log('');
+  }
+
+  console.log('\n=== Complete ===');
+}
+
+main().catch(console.error);

examples/js/embeddings/retrieval.ts

@@ -0,0 +1,131 @@
+/**
+ * Retrieval Example - Simple Vector Search
+ * 
+ * Demonstrates building a simple retrieval system with embeddings
+ * 
+ * Run: npx ts-node examples/js/embeddings/retrieval.ts
+ */
+
+import { embed, embedMany, cosineSimilarity } from '../../../src/praisonai-ts/dist/llm/embeddings';
+
+interface Document {
+  id: string;
+  content: string;
+  embedding?: number[];
+}
+
+interface SearchResult {
+  document: Document;
+  score: number;
+}
+
+// Simple in-memory vector store
+class SimpleVectorStore {
+  private documents: Document[] = [];
+
+  async add(doc: Document): Promise<void> {
+    const { embedding } = await embed(doc.content);
+    this.documents.push({ ...doc, embedding });
+  }
+
+  async addBatch(docs: Document[]): Promise<void> {
+    const contents = docs.map(d => d.content);
+    const { embeddings } = await embedMany(contents);
+    docs.forEach((doc, i) => {
+      this.documents.push({ ...doc, embedding: embeddings[i] });
+    });
+  }
+
+  async search(query: string, topK: number = 3): Promise<SearchResult[]> {
+    const { embedding: queryEmb } = await embed(query);
+    
+    const results = this.documents
+      .filter(doc => doc.embedding)
+      .map(doc => ({
+        document: doc,
+        score: cosineSimilarity(queryEmb, doc.embedding!)
+      }))
+      .sort((a, b) => b.score - a.score)
+      .slice(0, topK);
+    
+    return results;
+  }
+
+  get(id: string): Document | undefined {
+    return this.documents.find(d => d.id === id);
+  }
+
+  delete(id: string): boolean {
+    const idx = this.documents.findIndex(d => d.id === id);
+    if (idx >= 0) {
+      this.documents.splice(idx, 1);
+      return true;
+    }
+    return false;
+  }
+}
+
+async function main() {
+  console.log('=== Simple Vector Retrieval ===\n');
+
+  // Create vector store
+  console.log('1. Creating vector store...');
+  const store = new SimpleVectorStore();
+
+  // Add documents
+  console.log('2. Adding documents...');
+  const docs: Document[] = [
+    { id: '1', content: 'PraisonAI is an AI agent framework for building intelligent applications.' },
+    { id: '2', content: 'Agents can use tools to interact with external systems and APIs.' },
+    { id: '3', content: 'Workflows allow orchestrating multiple agents in sequence or parallel.' },
+    { id: '4', content: 'Memory systems help agents maintain context across conversations.' },
+    { id: '5', content: 'The AI SDK provides a unified interface for multiple LLM providers.' },
+    { id: '6', content: 'Embeddings enable semantic search and similarity matching.' },
+    { id: '7', content: 'Guardrails ensure agent outputs meet safety and quality standards.' },
+    { id: '8', content: 'Sessions persist conversation state for multi-turn interactions.' }
+  ];
+
+  await store.addBatch(docs);
+  console.log(`   Added ${docs.length} documents`);
+
+  // Search queries
+  console.log('\n3. Running search queries...\n');
+
+  const queries = [
+    'How do I build an AI application?',
+    'Can agents call external APIs?',
+    'How to maintain conversation context?',
+    'What providers are supported?'
+  ];
+
+  for (const query of queries) {
+    console.log(`Query: "${query}"`);
+    const results = await store.search(query);
+    
+    if (results.length > 0) {
+      console.log('Results:');
+      results.forEach((r, i) => {
+        console.log(`  ${i + 1}. [${(r.score * 100).toFixed(1)}%] ${r.document.content.substring(0, 60)}...`);
+      });
+    } else {
+      console.log('  No results found');
+    }
+    console.log('');
+  }
+
+  // Get specific document
+  console.log('4. Get document by ID...');
+  const doc = store.get('5');
+  if (doc) {
+    console.log(`   Found: ${doc.content}`);
+  }
+
+  // Delete document
+  console.log('\n5. Delete document...');
+  const deleted = store.delete('8');
+  console.log(`   Deleted doc 8: ${deleted}`);
+
+  console.log('\n=== Complete ===');
+}
+
+main().catch(console.error);

examples/provider-registry/isolated_registry_example.py

@@ -0,0 +1,197 @@
+"""
+Isolated Registry Example - Multi-Agent Safety
+
+This example demonstrates how to use isolated registries to prevent
+provider registration collisions in multi-agent scenarios.
+
+Key concepts:
+- Each agent/context can have its own registry
+- No global state mutation
+- Safe for concurrent/parallel runs
+- Different agents can use different provider implementations
+
+Requirements:
+- pip install praisonai
+"""
+
+import sys
+sys.path.insert(0, '../../src/praisonai')
+
+from praisonai.llm import (
+    LLMProviderRegistry,
+    create_llm_provider,
+    register_llm_provider,
+    get_default_llm_registry,
+    _reset_default_registry
+)
+
+
+# Define two different provider implementations with the same name
+class Agent1Provider:
+    """Provider implementation for Agent 1."""
+    provider_id = "custom"
+    
+    def __init__(self, model_id, config=None):
+        self.model_id = model_id
+        self.config = config or {}
+        self.agent_name = "Agent1"
+    
+    def generate(self, prompt):
+        return f"[{self.agent_name}] Response to: {prompt}"
+
+
+class Agent2Provider:
+    """Provider implementation for Agent 2 - different behavior."""
+    provider_id = "custom"
+    
+    def __init__(self, model_id, config=None):
+        self.model_id = model_id
+        self.config = config or {}
+        self.agent_name = "Agent2"
+    
+    def generate(self, prompt):
+        return f"[{self.agent_name}] Different response to: {prompt}"
+
+
+def demonstrate_collision_problem():
+    """Show what happens with global registry collisions."""
+    print("=== Problem: Global Registry Collision ===\n")
+    
+    # Reset to clean state
+    _reset_default_registry()
+    
+    # Agent 1 registers "custom" provider
+    register_llm_provider("custom", Agent1Provider)
+    print("Agent 1 registered 'custom' provider")
+    
+    # Agent 2 tries to register same name - ERROR!
+    try:
+        register_llm_provider("custom", Agent2Provider)
+        print("Agent 2 registered 'custom' provider")
+    except ValueError as e:
+        print(f"Agent 2 FAILED: {e}")
+    
+    print()
+    print("Problem: Both agents want to use 'custom' but with different implementations.")
+    print("Solution: Use isolated registries.\n")
+
+
+def demonstrate_isolated_solution():
+    """Show how isolated registries solve the collision problem."""
+    print("=== Solution: Isolated Registries ===\n")
+    
+    # Create isolated registries for each agent
+    agent1_registry = LLMProviderRegistry()
+    agent2_registry = LLMProviderRegistry()
+    
+    # Each agent registers its own "custom" provider
+    agent1_registry.register("custom", Agent1Provider)
+    agent2_registry.register("custom", Agent2Provider)
+    
+    print("Agent 1 registry providers:", agent1_registry.list())
+    print("Agent 2 registry providers:", agent2_registry.list())
+    print()
+    
+    # Create providers from each registry
+    provider1 = create_llm_provider("custom/model-v1", registry=agent1_registry)
+    provider2 = create_llm_provider("custom/model-v1", registry=agent2_registry)
+    
+    # They have different implementations!
+    print("Provider 1 response:", provider1.generate("Hello"))
+    print("Provider 2 response:", provider2.generate("Hello"))
+    print()
+    
+    # Verify isolation
+    print("Verification:")
+    print(f"  provider1.agent_name = {provider1.agent_name}")
+    print(f"  provider2.agent_name = {provider2.agent_name}")
+    print(f"  Same class? {type(provider1) == type(provider2)}")
+    print()
+
+
+def demonstrate_parallel_agents():
+    """Simulate parallel agent execution with isolated registries."""
+    print("=== Parallel Agent Simulation ===\n")
+    
+    def run_agent(agent_id, registry):
+        """Simulate an agent run with its own registry."""
+        provider = create_llm_provider("custom/model", registry=registry)
+        result = provider.generate(f"Query from agent {agent_id}")
+        return result
+    
+    # Setup registries
+    registries = {}
+    for i in range(3):
+        reg = LLMProviderRegistry()
+        # Each agent gets a slightly different provider
+        class DynamicProvider:
+            provider_id = "custom"
+            def __init__(self, model_id, config=None):
+                self.model_id = model_id
+                self.agent_id = i  # Capture agent ID
+            def generate(self, prompt):
+                return f"Agent-{self.agent_id} processed: {prompt}"
+        
+        reg.register("custom", DynamicProvider)
+        registries[i] = reg
+    
+    # Simulate parallel execution
+    print("Simulating parallel agent runs:")
+    for agent_id, registry in registries.items():
+        result = run_agent(agent_id, registry)
+        print(f"  {result}")
+    
+    print()
+    print("Each agent used its own isolated registry - no collisions!")
+    print()
+
+
+def demonstrate_shared_vs_isolated():
+    """Compare shared (global) vs isolated registry patterns."""
+    print("=== Shared vs Isolated Patterns ===\n")
+    
+    # Reset global registry
+    _reset_default_registry()
+    
+    # Pattern 1: Shared (global) registry
+    print("Pattern 1: Shared Registry (use for app-wide providers)")
+    register_llm_provider("shared-provider", Agent1Provider)
+    
+    # All code sees the same provider
+    global_reg = get_default_llm_registry()
+    print(f"  Global registry has 'shared-provider': {global_reg.has('shared-provider')}")
+    
+    # Pattern 2: Isolated registry
+    print("\nPattern 2: Isolated Registry (use for per-agent/per-run providers)")
+    isolated = LLMProviderRegistry()
+    isolated.register("isolated-provider", Agent2Provider)
+    
+    # Only code with reference to this registry sees it
+    print(f"  Isolated registry has 'isolated-provider': {isolated.has('isolated-provider')}")
+    print(f"  Global registry has 'isolated-provider': {global_reg.has('isolated-provider')}")
+    
+    print()
+    print("Recommendation:")
+    print("  - Use global registry for app-wide, stable providers")
+    print("  - Use isolated registries for per-agent or per-run customization")
+    print()
+
+
+def main():
+    print("=" * 60)
+    print("Isolated Registry Example - Multi-Agent Safety")
+    print("=" * 60)
+    print()
+    
+    demonstrate_collision_problem()
+    demonstrate_isolated_solution()
+    demonstrate_parallel_agents()
+    demonstrate_shared_vs_isolated()
+    
+    print("=" * 60)
+    print("Example Complete")
+    print("=" * 60)
+
+
+if __name__ == "__main__":
+    main()

src/praisonai-agents/praisonaiagents/mcp/mcp.py

@@ -11,8 +11,15 @@ import platform
 from typing import Any, List, Optional, Callable, Iterable, Union
 from functools import wraps, partial
 
-from mcp import ClientSession, StdioServerParameters
-from mcp.client.stdio import stdio_client
+try:
+    from mcp import ClientSession, StdioServerParameters
+    from mcp.client.stdio import stdio_client
+    MCP_AVAILABLE = True
+except ImportError:
+    MCP_AVAILABLE = False
+    ClientSession = None
+    StdioServerParameters = None
+    stdio_client = None
 
 class MCPToolRunner(threading.Thread):
     """A dedicated thread for running MCP operations."""
@@ -196,10 +203,17 @@ class MCP:
             debug: Enable debug logging for MCP operations (default: False)
             **kwargs: Additional parameters for StdioServerParameters
         """
+        # Check if MCP is available
+        if not MCP_AVAILABLE:
+            raise ImportError(
+                "MCP (Model Context Protocol) package is not installed. "
+                "Install it with: pip install praisonaiagents[mcp]"
+            )
+
         # Handle backward compatibility with named parameter 'command'
         if command_or_string is None and command is not None:
             command_or_string = command
-        
+
         # Set up logging - default to WARNING level to hide INFO messages
         if debug:
             logging.getLogger("mcp-wrapper").setLevel(logging.DEBUG)

src/praisonai-agents/praisonaiagents/mcp/mcp_http_stream.py

@@ -16,11 +16,17 @@ import weakref
 from typing import List, Dict, Any, Optional, Callable, Iterable, Union
 from urllib.parse import urlparse, urljoin
 
-from mcp import ClientSession
+try:
+    from mcp import ClientSession
+    MCP_AVAILABLE = True
+except ImportError:
+    MCP_AVAILABLE = False
+    ClientSession = None
+
 try:
     import aiohttp
 except ImportError:
-    raise ImportError("aiohttp is required for HTTP Stream transport. Install with: pip install praisonaiagents[mcp]")
+    aiohttp = None
 
 logger = logging.getLogger("mcp-http-stream")
 
@@ -507,9 +513,23 @@ class HTTPStreamMCPClient:
             timeout: Timeout in seconds for operations (default: 60)
             options: Additional configuration options for the transport
         """
+        # Check if MCP is available
+        if not MCP_AVAILABLE:
+            raise ImportError(
+                "MCP (Model Context Protocol) package is not installed. "
+                "Install it with: pip install praisonaiagents[mcp]"
+            )
+
+        # Check if aiohttp is available
+        if aiohttp is None:
+            raise ImportError(
+                "aiohttp is required for HTTP Stream transport. "
+                "Install it with: pip install praisonaiagents[mcp]"
+            )
+
         # Parse URL to extract base URL and endpoint
         parsed = urlparse(server_url)
-        
+
         # If the URL already has a path, use it; otherwise use default /mcp endpoint
         if parsed.path and parsed.path != '/':
             self.base_url = server_url

src/praisonai-agents/praisonaiagents/mcp/mcp_sse.py

@@ -11,8 +11,14 @@ import inspect
 import json
 from typing import List, Dict, Any, Optional, Callable, Iterable
 
-from mcp import ClientSession
-from mcp.client.sse import sse_client
+try:
+    from mcp import ClientSession
+    from mcp.client.sse import sse_client
+    MCP_AVAILABLE = True
+except ImportError:
+    MCP_AVAILABLE = False
+    ClientSession = None
+    sse_client = None
 
 logger = logging.getLogger("mcp-sse")
 
@@ -169,12 +175,19 @@ class SSEMCPClient:
             debug: Whether to enable debug logging
             timeout: Timeout in seconds for operations (default: 60)
         """
+        # Check if MCP is available
+        if not MCP_AVAILABLE:
+            raise ImportError(
+                "MCP (Model Context Protocol) package is not installed. "
+                "Install it with: pip install praisonaiagents[mcp]"
+            )
+
         self.server_url = server_url
         self.debug = debug
         self.timeout = timeout
         self.session = None
         self.tools = []
-        
+
         # Set up logging
         if debug:
             logger.setLevel(logging.DEBUG)

src/praisonai-agents/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "praisonaiagents"
-version = "0.5.1"
+version = "0.5.2"
 description = "Praison AI agents for completing complex tasks with Self Reflection Agents"
 readme = "README.md"
 requires-python = ">=3.10"

src/praisonai-agents/tests/test_mcp_optional_import.py

@@ -0,0 +1,149 @@
+"""
+Test that MCP module imports are optional and don't break basic functionality.
+This test verifies the fix for issue #1091.
+"""
+import pytest
+
+
+class TestMCPOptionalImport:
+    """Test that MCP is properly optional."""
+
+    def test_praisonaiagents_import_without_mcp(self):
+        """Test that praisonaiagents can be imported without mcp installed."""
+        # This should not raise any ImportError
+        import praisonaiagents
+        assert praisonaiagents is not None
+
+    def test_agent_import_without_mcp(self):
+        """Test that Agent can be imported without mcp installed."""
+        from praisonaiagents import Agent
+        assert Agent is not None
+
+    def test_mcp_lazy_loading(self):
+        """Test that MCP is lazily loaded."""
+        from praisonaiagents import MCP  # noqa: F401
+        # MCP should either be available or None (not raise ImportError on access)
+        # The actual ImportError should only be raised when trying to instantiate
+        # if mcp package is not installed
+
+    def test_mcp_module_import_no_crash(self):
+        """Test that mcp module can be imported without crashing."""
+        # This tests that the try/except in mcp.py works correctly
+        try:
+            from praisonaiagents.mcp import mcp as mcp_module
+            assert hasattr(mcp_module, 'MCP_AVAILABLE')
+        except ImportError:
+            # If import fails, it should be because of missing mcp,
+            # not because of a syntax error
+            pass
+
+    def test_mcp_sse_module_import_no_crash(self):
+        """Test that mcp_sse module can be imported without crashing."""
+        try:
+            from praisonaiagents.mcp import mcp_sse
+            assert hasattr(mcp_sse, 'MCP_AVAILABLE')
+        except ImportError:
+            pass
+
+    def test_mcp_http_stream_module_import_no_crash(self):
+        """Test that mcp_http_stream module can be imported without crashing."""
+        try:
+            from praisonaiagents.mcp import mcp_http_stream
+            assert hasattr(mcp_http_stream, 'MCP_AVAILABLE')
+        except ImportError:
+            pass
+
+    def test_basic_agent_creation_without_mcp_tools(self):
+        """Test that agents can be created without MCP tools."""
+        from praisonaiagents import Agent
+
+        # Creating an agent without MCP tools should work
+        agent = Agent(
+            name="Test Agent",
+            instructions="You are a test agent.",
+            llm="gpt-4o-mini"
+        )
+        assert agent is not None
+
+    def test_mcp_raises_import_error_when_unavailable(self):
+        """Test that MCP raises ImportError with install instructions when mcp package unavailable."""
+        import praisonaiagents.mcp.mcp as mcp_module
+
+        # Save original value
+        original_available = mcp_module.MCP_AVAILABLE
+
+        # Simulate MCP not installed
+        mcp_module.MCP_AVAILABLE = False
+
+        try:
+            from praisonaiagents.mcp.mcp import MCP
+            with pytest.raises(ImportError) as exc_info:
+                MCP('test-command')
+
+            error_msg = str(exc_info.value)
+            assert 'pip install praisonaiagents[mcp]' in error_msg
+            assert 'MCP' in error_msg or 'Model Context Protocol' in error_msg
+        finally:
+            # Restore original value
+            mcp_module.MCP_AVAILABLE = original_available
+
+    def test_sse_client_raises_import_error_when_unavailable(self):
+        """Test that SSEMCPClient raises ImportError with install instructions when mcp unavailable."""
+        import praisonaiagents.mcp.mcp_sse as sse_module
+
+        original_available = sse_module.MCP_AVAILABLE
+        sse_module.MCP_AVAILABLE = False
+
+        try:
+            from praisonaiagents.mcp.mcp_sse import SSEMCPClient
+            with pytest.raises(ImportError) as exc_info:
+                SSEMCPClient('http://test.com/sse')
+
+            error_msg = str(exc_info.value)
+            assert 'pip install praisonaiagents[mcp]' in error_msg
+        finally:
+            sse_module.MCP_AVAILABLE = original_available
+
+    def test_http_stream_client_raises_import_error_when_mcp_unavailable(self):
+        """Test that HTTPStreamMCPClient raises ImportError when mcp unavailable."""
+        import praisonaiagents.mcp.mcp_http_stream as http_module
+
+        original_available = http_module.MCP_AVAILABLE
+        http_module.MCP_AVAILABLE = False
+
+        try:
+            from praisonaiagents.mcp.mcp_http_stream import HTTPStreamMCPClient
+            with pytest.raises(ImportError) as exc_info:
+                HTTPStreamMCPClient('http://test.com/mcp')
+
+            error_msg = str(exc_info.value)
+            assert 'pip install praisonaiagents[mcp]' in error_msg
+        finally:
+            http_module.MCP_AVAILABLE = original_available
+
+    def test_http_stream_client_raises_import_error_when_aiohttp_unavailable(self):
+        """Test that HTTPStreamMCPClient raises ImportError when aiohttp unavailable."""
+        import praisonaiagents.mcp.mcp_http_stream as http_module
+
+        # Ensure MCP is available but aiohttp is not
+        original_available = http_module.MCP_AVAILABLE
+        original_aiohttp = http_module.aiohttp
+
+        http_module.MCP_AVAILABLE = True
+        http_module.aiohttp = None
+
+        try:
+            from praisonaiagents.mcp.mcp_http_stream import HTTPStreamMCPClient
+            with pytest.raises(ImportError) as exc_info:
+                HTTPStreamMCPClient('http://test.com/mcp')
+
+            error_msg = str(exc_info.value)
+            assert 'aiohttp' in error_msg.lower()
+            assert 'pip install praisonaiagents[mcp]' in error_msg
+        finally:
+            http_module.MCP_AVAILABLE = original_available
+            http_module.aiohttp = original_aiohttp
+
+
+if __name__ == "__main__":
+    pytest.main([__file__, "-v"])

src/praisonai-ts/examples/ai-sdk/basic-chat.ts

@@ -0,0 +1,42 @@
+/**
+ * AI SDK Basic Chat Example
+ * 
+ * Demonstrates basic text generation using the AI SDK backend.
+ * 
+ * Usage:
+ *   npx ts-node examples/ai-sdk/basic-chat.ts
+ * 
+ * Required environment variables:
+ *   OPENAI_API_KEY - Your OpenAI API key
+ */
+
+import { createAISDKBackend } from '../../src/llm/providers/ai-sdk';
+
+async function main() {
+  console.log('AI SDK Basic Chat Example\n');
+
+  // Create a backend for OpenAI
+  const backend = createAISDKBackend('openai/gpt-4o-mini', {
+    timeout: 30000,
+    maxRetries: 2,
+  });
+
+  console.log(`Provider: ${backend.providerId}`);
+  console.log(`Model: ${backend.modelId}\n`);
+
+  // Generate text
+  const result = await backend.generateText({
+    messages: [
+      { role: 'system', content: 'You are a helpful assistant.' },
+      { role: 'user', content: 'What is the capital of France? Answer in one sentence.' }
+    ],
+    temperature: 0.7,
+    maxTokens: 100,
+  });
+
+  console.log('Response:', result.text);
+  console.log('\nUsage:', result.usage);
+  console.log('Finish Reason:', result.finishReason);
+}
+
+main().catch(console.error);

src/praisonai-ts/examples/ai-sdk/multi-agent.ts

@@ -0,0 +1,123 @@
+/**
+ * AI SDK Multi-Agent Example
+ * 
+ * Demonstrates multi-agent safety with attribution context.
+ * Each agent has its own ID and the context is propagated to LLM calls.
+ * 
+ * Usage:
+ *   npx ts-node examples/ai-sdk/multi-agent.ts
+ * 
+ * Required environment variables:
+ *   OPENAI_API_KEY - Your OpenAI API key
+ */
+
+import { createAISDKBackend } from '../../src/llm/providers/ai-sdk';
+import type { AttributionContext } from '../../src/llm/providers/ai-sdk/types';
+
+// Simulate multiple agents running in parallel
+async function runAgent(
+  agentId: string,
+  task: string,
+  attribution: AttributionContext
+): Promise<{ agentId: string; result: string; duration: number }> {
+  console.log(`[${agentId}] Starting task: "${task}"`);
+  
+  // Create backend with attribution context
+  const backend = createAISDKBackend('openai/gpt-4o-mini', {
+    timeout: 30000,
+    attribution,
+  });
+
+  const startTime = Date.now();
+  
+  const result = await backend.generateText({
+    messages: [
+      { role: 'system', content: `You are agent ${agentId}. Be concise.` },
+      { role: 'user', content: task }
+    ],
+    temperature: 0.7,
+    maxTokens: 100,
+  });
+
+  const duration = Date.now() - startTime;
+  
+  console.log(`[${agentId}] Completed in ${duration}ms`);
+  
+  return {
+    agentId,
+    result: result.text,
+    duration
+  };
+}
+
+async function main() {
+  console.log('AI SDK Multi-Agent Example\n');
+  console.log('Running multiple agents in parallel with attribution tracking...\n');
+
+  // Shared run context
+  const runId = `run-${Date.now()}`;
+  const traceId = `trace-${Math.random().toString(36).slice(2, 10)}`;
+  const sessionId = 'session-demo';
+
+  console.log(`Run ID: ${runId}`);
+  console.log(`Trace ID: ${traceId}`);
+  console.log(`Session ID: ${sessionId}\n`);
+  console.log('---\n');
+
+  // Define agents with their tasks
+  const agents = [
+    {
+      id: 'researcher',
+      task: 'What is the population of Tokyo? Just the number.',
+      attribution: {
+        agentId: 'researcher',
+        runId,
+        traceId,
+        sessionId,
+      }
+    },
+    {
+      id: 'analyst',
+      task: 'What is 15% of 1000? Just the number.',
+      attribution: {
+        agentId: 'analyst',
+        runId,
+        traceId,
+        sessionId,
+      }
+    },
+    {
+      id: 'writer',
+      task: 'Write a one-sentence tagline for a coffee shop.',
+      attribution: {
+        agentId: 'writer',
+        runId,
+        traceId,
+        sessionId,
+      }
+    }
+  ];
+
+  // Run all agents in parallel
+  const startTime = Date.now();
+  const results = await Promise.all(
+    agents.map(agent => runAgent(agent.id, agent.task, agent.attribution))
+  );
+  const totalDuration = Date.now() - startTime;
+
+  console.log('\n---\n');
+  console.log('Results:\n');
+
+  for (const result of results) {
+    console.log(`[${result.agentId}] (${result.duration}ms)`);
+    console.log(`  ${result.result.trim()}\n`);
+  }
+
+  console.log('---');
+  console.log(`Total parallel execution time: ${totalDuration}ms`);
+  console.log(`Sum of individual times: ${results.reduce((sum, r) => sum + r.duration, 0)}ms`);
+  console.log('\nNote: Attribution headers (X-Agent-Id, X-Run-Id, X-Trace-Id, X-Session-Id)');
+  console.log('are automatically injected into each LLM request for tracing and debugging.');
+}
+
+main().catch(console.error);

src/praisonai-ts/examples/ai-sdk/multi-provider.ts

@@ -0,0 +1,68 @@
+/**
+ * AI SDK Multi-Provider Example
+ * 
+ * Demonstrates using multiple AI providers with the same interface.
+ * 
+ * Usage:
+ *   npx ts-node examples/ai-sdk/multi-provider.ts
+ * 
+ * Required environment variables (set at least one):
+ *   OPENAI_API_KEY - Your OpenAI API key
+ *   ANTHROPIC_API_KEY - Your Anthropic API key
+ *   GOOGLE_API_KEY - Your Google API key
+ */
+
+import { createAISDKBackend, validateProviderApiKey } from '../../src/llm/providers/ai-sdk';
+
+const PROVIDERS = [
+  { id: 'openai', model: 'gpt-4o-mini' },
+  { id: 'anthropic', model: 'claude-3-haiku-20240307' },
+  { id: 'google', model: 'gemini-1.5-flash' },
+];
+
+async function main() {
+  console.log('AI SDK Multi-Provider Example\n');
+  console.log('Testing multiple providers with the same prompt...\n');
+
+  const prompt = 'What is 2 + 2? Answer with just the number.';
+  console.log(`Prompt: "${prompt}"\n`);
+  console.log('---\n');
+
+  for (const provider of PROVIDERS) {
+    // Check if API key is available
+    if (!validateProviderApiKey(provider.id)) {
+      console.log(`${provider.id}: Skipped (no API key)`);
+      continue;
+    }
+
+    try {
+      const modelString = `${provider.id}/${provider.model}`;
+      console.log(`${provider.id} (${provider.model}):`);
+
+      const backend = createAISDKBackend(modelString, {
+        timeout: 30000,
+        maxRetries: 1,
+      });
+
+      const startTime = Date.now();
+      const result = await backend.generateText({
+        messages: [
+          { role: 'user', content: prompt }
+        ],
+        temperature: 0,
+        maxTokens: 10,
+      });
+      const duration = Date.now() - startTime;
+
+      console.log(`  Response: ${result.text.trim()}`);
+      console.log(`  Duration: ${duration}ms`);
+      console.log(`  Tokens: ${result.usage?.totalTokens || 'N/A'}`);
+      console.log();
+    } catch (error) {
+      console.log(`  Error: ${error instanceof Error ? error.message : 'Unknown error'}`);
+      console.log();
+    }
+  }
+}
+
+main().catch(console.error);

src/praisonai-ts/examples/ai-sdk/streaming.ts

@@ -0,0 +1,56 @@
+/**
+ * AI SDK Streaming Example
+ * 
+ * Demonstrates streaming text generation using the AI SDK backend.
+ * 
+ * Usage:
+ *   npx ts-node examples/ai-sdk/streaming.ts
+ * 
+ * Required environment variables:
+ *   OPENAI_API_KEY - Your OpenAI API key
+ */
+
+import { createAISDKBackend } from '../../src/llm/providers/ai-sdk';
+
+async function main() {
+  console.log('AI SDK Streaming Example\n');
+
+  // Create a backend for OpenAI
+  const backend = createAISDKBackend('openai/gpt-4o-mini', {
+    timeout: 60000,
+  });
+
+  console.log(`Provider: ${backend.providerId}`);
+  console.log(`Model: ${backend.modelId}\n`);
+  console.log('Streaming response:\n');
+
+  // Stream text
+  const stream = await backend.streamText({
+    messages: [
+      { role: 'system', content: 'You are a helpful assistant.' },
+      { role: 'user', content: 'Write a short poem about programming.' }
+    ],
+    temperature: 0.8,
+    maxTokens: 200,
+    onToken: (token) => {
+      // This callback is called for each token
+      process.stdout.write(token);
+    },
+  });
+
+  // Consume the stream
+  let totalTokens = 0;
+  for await (const chunk of stream) {
+    if (chunk.text) {
+      // Text is already printed via onToken callback
+    }
+    if (chunk.usage) {
+      totalTokens = chunk.usage.totalTokens || 0;
+    }
+  }
+
+  console.log('\n\n---');
+  console.log(`Total tokens: ${totalTokens}`);
+}
+
+main().catch(console.error);

src/praisonai-ts/examples/ai-sdk/structured-output.ts

@@ -0,0 +1,129 @@
+/**
+ * AI SDK Structured Output Example
+ * 
+ * Demonstrates generating structured JSON output using schemas.
+ * 
+ * Usage:
+ *   npx ts-node examples/ai-sdk/structured-output.ts
+ * 
+ * Required environment variables:
+ *   OPENAI_API_KEY - Your OpenAI API key
+ */
+
+import { createAISDKBackend } from '../../src/llm/providers/ai-sdk';
+
+// Define the schema for structured output
+const recipeSchema = {
+  type: 'object',
+  properties: {
+    name: {
+      type: 'string',
+      description: 'Name of the recipe'
+    },
+    ingredients: {
+      type: 'array',
+      items: {
+        type: 'object',
+        properties: {
+          name: { type: 'string' },
+          amount: { type: 'string' },
+          unit: { type: 'string' }
+        },
+        required: ['name', 'amount']
+      },
+      description: 'List of ingredients'
+    },
+    steps: {
+      type: 'array',
+      items: { type: 'string' },
+      description: 'Cooking steps'
+    },
+    prepTime: {
+      type: 'number',
+      description: 'Preparation time in minutes'
+    },
+    cookTime: {
+      type: 'number',
+      description: 'Cooking time in minutes'
+    },
+    servings: {
+      type: 'number',
+      description: 'Number of servings'
+    }
+  },
+  required: ['name', 'ingredients', 'steps']
+};
+
+interface Recipe {
+  name: string;
+  ingredients: Array<{
+    name: string;
+    amount: string;
+    unit?: string;
+  }>;
+  steps: string[];
+  prepTime?: number;
+  cookTime?: number;
+  servings?: number;
+}
+
+async function main() {
+  console.log('AI SDK Structured Output Example\n');
+
+  const backend = createAISDKBackend('openai/gpt-4o-mini', {
+    timeout: 30000,
+  });
+
+  console.log(`Provider: ${backend.providerId}`);
+  console.log(`Model: ${backend.modelId}\n`);
+
+  console.log('Generating a recipe in structured JSON format...\n');
+
+  const result = await backend.generateObject<Recipe>({
+    messages: [
+      { 
+        role: 'system', 
+        content: 'You are a helpful cooking assistant. Generate recipes in the requested format.' 
+      },
+      { 
+        role: 'user', 
+        content: 'Give me a simple recipe for chocolate chip cookies.' 
+      }
+    ],
+    schema: recipeSchema,
+    temperature: 0.7,
+  });
+
+  console.log('Generated Recipe:');
+  console.log('================\n');
+  
+  const recipe = result.object;
+  
+  console.log(`📝 ${recipe.name}`);
+  console.log();
+  
+  if (recipe.prepTime || recipe.cookTime) {
+    console.log(`⏱️  Prep: ${recipe.prepTime || 'N/A'} min | Cook: ${recipe.cookTime || 'N/A'} min`);
+  }
+  if (recipe.servings) {
+    console.log(`🍽️  Servings: ${recipe.servings}`);
+  }
+  console.log();
+  
+  console.log('Ingredients:');
+  for (const ing of recipe.ingredients) {
+    const unit = ing.unit ? ` ${ing.unit}` : '';
+    console.log(`  • ${ing.amount}${unit} ${ing.name}`);
+  }
+  console.log();
+  
+  console.log('Steps:');
+  recipe.steps.forEach((step, i) => {
+    console.log(`  ${i + 1}. ${step}`);
+  });
+  
+  console.log('\n---');
+  console.log('Usage:', result.usage);
+}
+
+main().catch(console.error);

src/praisonai-ts/examples/ai-sdk/tool-calling.ts

@@ -0,0 +1,144 @@
+/**
+ * AI SDK Tool Calling Example
+ * 
+ * Demonstrates tool calling using the AI SDK backend.
+ * 
+ * Usage:
+ *   npx ts-node examples/ai-sdk/tool-calling.ts
+ * 
+ * Required environment variables:
+ *   OPENAI_API_KEY - Your OpenAI API key
+ */
+
+import { createAISDKBackend } from '../../src/llm/providers/ai-sdk';
+import type { ToolDefinition, Message } from '../../src/llm/providers/types';
+
+// Define tools
+const tools: ToolDefinition[] = [
+  {
+    name: 'get_weather',
+    description: 'Get the current weather for a location',
+    parameters: {
+      type: 'object',
+      properties: {
+        location: {
+          type: 'string',
+          description: 'The city and country, e.g., "London, UK"'
+        },
+        unit: {
+          type: 'string',
+          enum: ['celsius', 'fahrenheit'],
+          description: 'Temperature unit'
+        }
+      },
+      required: ['location']
+    }
+  },
+  {
+    name: 'get_time',
+    description: 'Get the current time for a timezone',
+    parameters: {
+      type: 'object',
+      properties: {
+        timezone: {
+          type: 'string',
+          description: 'The timezone, e.g., "America/New_York"'
+        }
+      },
+      required: ['timezone']
+    }
+  }
+];
+
+// Mock tool execution
+function executeTool(name: string, args: Record<string, unknown>): string {
+  switch (name) {
+    case 'get_weather':
+      return JSON.stringify({
+        location: args.location,
+        temperature: 22,
+        unit: args.unit || 'celsius',
+        condition: 'Partly cloudy'
+      });
+    case 'get_time':
+      return JSON.stringify({
+        timezone: args.timezone,
+        time: new Date().toLocaleTimeString('en-US', { 
+          timeZone: args.timezone as string 
+        })
+      });
+    default:
+      return JSON.stringify({ error: 'Unknown tool' });
+  }
+}
+
+async function main() {
+  console.log('AI SDK Tool Calling Example\n');
+
+  const backend = createAISDKBackend('openai/gpt-4o-mini', {
+    timeout: 30000,
+  });
+
+  console.log(`Provider: ${backend.providerId}`);
+  console.log(`Model: ${backend.modelId}\n`);
+
+  // Initial conversation
+  const messages: Message[] = [
+    { role: 'system', content: 'You are a helpful assistant with access to weather and time tools.' },
+    { role: 'user', content: 'What is the weather in London and what time is it in New York?' }
+  ];
+
+  console.log('User:', messages[1].content);
+  console.log('\n--- First LLM Call ---\n');
+
+  // First call - model should request tool calls
+  let result = await backend.generateText({
+    messages,
+    tools,
+    toolChoice: 'auto',
+  });
+
+  console.log('Finish Reason:', result.finishReason);
+
+  // Handle tool calls
+  if (result.toolCalls && result.toolCalls.length > 0) {
+    console.log(`\nTool Calls: ${result.toolCalls.length}`);
+    
+    // Add assistant message with tool calls
+    messages.push({
+      role: 'assistant',
+      content: null,
+      tool_calls: result.toolCalls
+    });
+
+    // Execute each tool and add results
+    for (const toolCall of result.toolCalls) {
+      const args = JSON.parse(toolCall.function.arguments);
+      console.log(`\n  Executing: ${toolCall.function.name}`);
+      console.log(`  Arguments: ${JSON.stringify(args)}`);
+      
+      const toolResult = executeTool(toolCall.function.name, args);
+      console.log(`  Result: ${toolResult}`);
+      
+      messages.push({
+        role: 'tool',
+        content: toolResult,
+        tool_call_id: toolCall.id,
+        name: toolCall.function.name
+      });
+    }
+
+    console.log('\n--- Second LLM Call (with tool results) ---\n');
+
+    // Second call with tool results
+    result = await backend.generateText({
+      messages,
+      tools,
+    });
+  }
+
+  console.log('Final Response:', result.text);
+  console.log('\nUsage:', result.usage);
+}
+
+main().catch(console.error);

src/praisonai-ts/package.json

@@ -1,6 +1,6 @@
 {
   "name": "praisonai",
-  "version": "1.3.2",
+  "version": "1.3.6",
   "description": "PraisonAI TypeScript AI Agents Framework - Node.js, npm, and Javascript AI Agents Framework",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -46,11 +46,15 @@
   "author": "Mervin Praison",
   "license": "MIT",
   "devDependencies": {
+    "@ai-sdk/anthropic": "^3.0.1",
+    "@ai-sdk/google": "^3.0.1",
+    "@ai-sdk/openai": "^3.0.1",
     "@types/figlet": "^1.7.0",
     "@types/jest": "^29.5.14",
     "@types/node": "^22.12.0",
     "@typescript-eslint/eslint-plugin": "^8.22.0",
     "@typescript-eslint/parser": "^8.22.0",
+    "ai": "^6.0.3",
     "eslint": "^9.19.0",
     "jest": "^29.7.0",
     "rimraf": "^5.0.5",
@@ -60,12 +64,12 @@
     "typescript": "^5.7.3"
   },
   "dependencies": {
+    "@modelcontextprotocol/sdk": "^1.12.1",
     "axios": "^1.7.9",
     "dotenv": "^16.4.7",
     "fast-xml-parser": "^4.5.1",
     "node-fetch": "^2.6.9",
-    "openai": "^4.81.0",
-    "@modelcontextprotocol/sdk": "^1.12.1"
+    "openai": "^4.81.0"
   },
   "optionalDependencies": {
     "boxen": "^7.1.1",
@@ -74,6 +78,26 @@
     "figlet": "^1.7.0",
     "ora": "^5.4.1"
   },
+  "peerDependencies": {
+    "@ai-sdk/anthropic": ">=1.0.0",
+    "@ai-sdk/google": ">=1.0.0",
+    "@ai-sdk/openai": ">=1.0.0",
+    "ai": ">=4.0.0"
+  },
+  "peerDependenciesMeta": {
+    "ai": {
+      "optional": true
+    },
+    "@ai-sdk/openai": {
+      "optional": true
+    },
+    "@ai-sdk/anthropic": {
+      "optional": true
+    },
+    "@ai-sdk/google": {
+      "optional": true
+    }
+  },
   "overrides": {
     "whatwg-url": "^14.1.0",
     "node-fetch": "^2.6.9"

src/praisonai-ts/src/agent/context.ts

@@ -2,7 +2,8 @@
  * Context Agent - Agent with enhanced context management
  */
 
-import { createProvider, type LLMProvider, type Message } from '../llm/providers';
+import { type LLMProvider, type Message } from '../llm/providers';
+import { resolveBackend } from '../llm/backend-resolver';
 import { Session } from '../session';
 import { KnowledgeBase, type SearchResult } from '../knowledge/rag';
 
@@ -30,7 +31,9 @@ export class ContextAgent {
   readonly name: string;
   readonly instructions: string;
   
-  private provider: LLMProvider;
+  private provider: LLMProvider | null = null;
+  private providerPromise: Promise<LLMProvider> | null = null;
+  private llmModel: string;
   private knowledgeBase?: KnowledgeBase;
   private contextWindow: number;
   private maxContextTokens: number;
@@ -40,13 +43,34 @@ export class ContextAgent {
   constructor(config: ContextAgentConfig) {
     this.name = config.name || `ContextAgent_${Math.random().toString(36).substr(2, 9)}`;
     this.instructions = config.instructions;
-    this.provider = createProvider(config.llm || 'gpt-4o-mini');
+    this.llmModel = config.llm || 'openai/gpt-4o-mini';
     this.knowledgeBase = config.knowledgeBase;
     this.contextWindow = config.contextWindow ?? 10;
     this.maxContextTokens = config.maxContextTokens ?? 4000;
     this.verbose = config.verbose ?? false;
   }
 
+  /**
+   * Get the LLM provider (lazy initialization with AI SDK backend)
+   */
+  private async getProvider(): Promise<LLMProvider> {
+    if (this.provider) {
+      return this.provider;
+    }
+
+    if (!this.providerPromise) {
+      this.providerPromise = (async () => {
+        const result = await resolveBackend(this.llmModel, {
+          attribution: { agentId: this.name },
+        });
+        this.provider = result.provider;
+        return result.provider;
+      })();
+    }
+
+    return this.providerPromise;
+  }
+
   /**
    * Chat with context awareness
    */
@@ -83,7 +107,8 @@ export class ContextAgent {
     ];
 
     // Generate response
-    const result = await this.provider.generateText({ messages });
+    const provider = await this.getProvider();
+    const result = await provider.generateText({ messages });
 
     // Add assistant message
     this.messages.push({

src/praisonai-ts/src/agent/enhanced.ts

@@ -2,7 +2,8 @@
  * Enhanced Agent - Agent with session management, provider abstraction, and tool support
  */
 
-import { createProvider, type LLMProvider, type Message, type ToolCall, type GenerateTextResult } from '../llm/providers';
+import { type LLMProvider, type Message, type ToolCall, type GenerateTextResult } from '../llm/providers';
+import { resolveBackend } from '../llm/backend-resolver';
 import { Session, Run, Trace, getSessionManager } from '../session';
 import { FunctionTool, ToolRegistry, tool } from '../tools/decorator';
 import { Logger } from '../utils/logger';
@@ -51,7 +52,9 @@ export class EnhancedAgent {
   readonly instructions: string;
   readonly sessionId: string;
   
-  private provider: LLMProvider;
+  private provider: LLMProvider | null = null;
+  private providerPromise: Promise<LLMProvider> | null = null;
+  private llmModel: string;
   private session: Session;
   private toolRegistry: ToolRegistry;
   private verbose: boolean;
@@ -71,8 +74,8 @@ export class EnhancedAgent {
     this.maxTokens = config.maxTokens;
     this.outputSchema = config.outputSchema;
 
-    // Initialize provider
-    this.provider = createProvider(config.llm || 'gpt-4o-mini');
+    // Store model string for lazy provider initialization
+    this.llmModel = config.llm || 'openai/gpt-4o-mini';
 
     // Initialize session
     if (config.session) {
@@ -93,6 +96,30 @@ export class EnhancedAgent {
     Logger.setVerbose(this.verbose);
   }
 
+  /**
+   * Get the LLM provider (lazy initialization with AI SDK backend)
+   */
+  private async getProvider(): Promise<LLMProvider> {
+    if (this.provider) {
+      return this.provider;
+    }
+
+    if (!this.providerPromise) {
+      this.providerPromise = (async () => {
+        const result = await resolveBackend(this.llmModel, {
+          attribution: {
+            agentId: this.name,
+            sessionId: this.sessionId,
+          },
+        });
+        this.provider = result.provider;
+        return result.provider;
+      })();
+    }
+
+    return this.providerPromise;
+  }
+
   private registerTools(tools: EnhancedAgentConfig['tools']): void {
     if (!tools) return;
 
@@ -176,7 +203,8 @@ export class EnhancedAgent {
 
         if (options.stream && !tools && options.onToken) {
           // Streaming without tools
-          const stream = await this.provider.streamText({
+          const provider = await this.getProvider();
+          const stream = await provider.streamText({
             messages,
             temperature: options.temperature ?? this.temperature,
             maxTokens: options.maxTokens ?? this.maxTokens,
@@ -197,7 +225,8 @@ export class EnhancedAgent {
           break;
         } else if (options.outputSchema) {
           // Structured output
-          const objResult = await this.provider.generateObject({
+          const provider = await this.getProvider();
+          const objResult = await provider.generateObject({
             messages,
             schema: options.outputSchema ?? this.outputSchema,
             temperature: options.temperature ?? this.temperature,
@@ -213,7 +242,8 @@ export class EnhancedAgent {
           break;
         } else {
           // Regular generation with potential tool calls
-          result = await this.provider.generateText({
+          const provider = await this.getProvider();
+          result = await provider.generateText({
             messages,
             temperature: options.temperature ?? this.temperature,
             maxTokens: options.maxTokens ?? this.maxTokens,

src/praisonai-ts/src/agent/image.ts

@@ -2,7 +2,8 @@
  * ImageAgent - Agent for image generation and analysis
  */
 
-import { createProvider, type LLMProvider, type Message } from '../llm/providers';
+import { type LLMProvider, type Message } from '../llm/providers';
+import { resolveBackend } from '../llm/backend-resolver';
 
 export interface ImageGenerationConfig {
   prompt: string;
@@ -30,17 +31,40 @@ export interface ImageAgentConfig {
  */
 export class ImageAgent {
   readonly name: string;
-  private provider: LLMProvider;
+  private provider: LLMProvider | null = null;
+  private providerPromise: Promise<LLMProvider> | null = null;
+  private llmModel: string;
   private imageModel: string;
   private verbose: boolean;
 
   constructor(config: ImageAgentConfig = {}) {
     this.name = config.name || `ImageAgent_${Math.random().toString(36).substr(2, 9)}`;
-    this.provider = createProvider(config.llm || 'openai/gpt-4o-mini');
+    this.llmModel = config.llm || 'openai/gpt-4o-mini';
     this.imageModel = config.imageModel || 'dall-e-3';
     this.verbose = config.verbose ?? false;
   }
 
+  /**
+   * Get the LLM provider (lazy initialization with AI SDK backend)
+   */
+  private async getProvider(): Promise<LLMProvider> {
+    if (this.provider) {
+      return this.provider;
+    }
+
+    if (!this.providerPromise) {
+      this.providerPromise = (async () => {
+        const result = await resolveBackend(this.llmModel, {
+          attribution: { agentId: this.name },
+        });
+        this.provider = result.provider;
+        return result.provider;
+      })();
+    }
+
+    return this.providerPromise;
+  }
+
   /**
    * Analyze an image
    */
@@ -63,7 +87,8 @@ export class ImageAgent {
       }
     ];
 
-    const result = await this.provider.generateText({ messages });
+    const provider = await this.getProvider();
+    const result = await provider.generateText({ messages });
     
     if (this.verbose) {
       console.log(`[ImageAgent] Analysis: ${result.text.substring(0, 100)}...`);
@@ -93,7 +118,8 @@ export class ImageAgent {
       return this.analyze({ imageUrl, prompt });
     }
 
-    const result = await this.provider.generateText({
+    const provider = await this.getProvider();
+    const result = await provider.generateText({
       messages: [{ role: 'user', content: prompt }]
     });
 
@@ -117,7 +143,8 @@ export class ImageAgent {
       }
     ];
 
-    const result = await this.provider.generateText({ messages });
+    const provider = await this.getProvider();
+    const result = await provider.generateText({ messages });
     return result.text;
   }
 }

src/praisonai-ts/src/agent/prompt-expander.ts

@@ -2,7 +2,8 @@
  * PromptExpanderAgent - Expand and enhance prompts
  */
 
-import { createProvider, type LLMProvider } from '../llm/providers';
+import { type LLMProvider } from '../llm/providers';
+import { resolveBackend } from '../llm/backend-resolver';
 
 export type ExpandStrategy = 'detail' | 'context' | 'examples' | 'constraints' | 'auto';
 
@@ -25,17 +26,31 @@ export interface PromptExpanderConfig {
  */
 export class PromptExpanderAgent {
   readonly name: string;
-  private provider: LLMProvider;
+  private provider: LLMProvider | null = null;
+  private providerPromise: Promise<LLMProvider> | null = null;
+  private llmModel: string;
   private defaultStrategy: ExpandStrategy;
   private verbose: boolean;
 
   constructor(config: PromptExpanderConfig = {}) {
     this.name = config.name || `PromptExpander_${Math.random().toString(36).substr(2, 9)}`;
-    this.provider = createProvider(config.llm || 'openai/gpt-4o-mini');
+    this.llmModel = config.llm || 'openai/gpt-4o-mini';
     this.defaultStrategy = config.defaultStrategy || 'auto';
     this.verbose = config.verbose ?? false;
   }
 
+  private async getProvider(): Promise<LLMProvider> {
+    if (this.provider) return this.provider;
+    if (!this.providerPromise) {
+      this.providerPromise = (async () => {
+        const result = await resolveBackend(this.llmModel, { attribution: { agentId: this.name } });
+        this.provider = result.provider;
+        return result.provider;
+      })();
+    }
+    return this.providerPromise;
+  }
+
   /**
    * Expand a prompt
    */
@@ -45,7 +60,8 @@ export class PromptExpanderAgent {
 
     const systemPrompt = this.getSystemPrompt(actualStrategy);
     
-    const result = await this.provider.generateText({
+    const provider = await this.getProvider();
+    const result = await provider.generateText({
       messages: [
         { role: 'system', content: systemPrompt },
         { role: 'user', content: `Expand this prompt: ${prompt}` }

src/praisonai-ts/src/agent/query-rewriter.ts

@@ -2,7 +2,8 @@
  * QueryRewriterAgent - Rewrite and optimize queries
  */
 
-import { createProvider, type LLMProvider } from '../llm/providers';
+import { type LLMProvider } from '../llm/providers';
+import { resolveBackend } from '../llm/backend-resolver';
 
 export type RewriteStrategy = 'expand' | 'simplify' | 'decompose' | 'rephrase' | 'auto';
 
@@ -25,17 +26,31 @@ export interface QueryRewriterConfig {
  */
 export class QueryRewriterAgent {
   readonly name: string;
-  private provider: LLMProvider;
+  private provider: LLMProvider | null = null;
+  private providerPromise: Promise<LLMProvider> | null = null;
+  private llmModel: string;
   private defaultStrategy: RewriteStrategy;
   private verbose: boolean;
 
   constructor(config: QueryRewriterConfig = {}) {
     this.name = config.name || `QueryRewriter_${Math.random().toString(36).substr(2, 9)}`;
-    this.provider = createProvider(config.llm || 'openai/gpt-4o-mini');
+    this.llmModel = config.llm || 'openai/gpt-4o-mini';
     this.defaultStrategy = config.defaultStrategy || 'auto';
     this.verbose = config.verbose ?? false;
   }
 
+  private async getProvider(): Promise<LLMProvider> {
+    if (this.provider) return this.provider;
+    if (!this.providerPromise) {
+      this.providerPromise = (async () => {
+        const result = await resolveBackend(this.llmModel, { attribution: { agentId: this.name } });
+        this.provider = result.provider;
+        return result.provider;
+      })();
+    }
+    return this.providerPromise;
+  }
+
   /**
    * Rewrite a query
    */
@@ -45,7 +60,8 @@ export class QueryRewriterAgent {
 
     const prompt = this.buildPrompt(query, actualStrategy);
     
-    const result = await this.provider.generateText({
+    const provider = await this.getProvider();
+    const result = await provider.generateText({
       messages: [
         { role: 'system', content: this.getSystemPrompt(actualStrategy) },
         { role: 'user', content: prompt }

src/praisonai-ts/src/agent/research.ts

@@ -2,7 +2,8 @@
  * DeepResearchAgent - Agent for comprehensive research tasks
  */
 
-import { createProvider, type LLMProvider, type Message } from '../llm/providers';
+import { type LLMProvider, type Message } from '../llm/providers';
+import { resolveBackend } from '../llm/backend-resolver';
 
 export interface Citation {
   title: string;
@@ -37,19 +38,33 @@ export interface DeepResearchConfig {
  */
 export class DeepResearchAgent {
   readonly name: string;
-  private provider: LLMProvider;
+  private provider: LLMProvider | null = null;
+  private providerPromise: Promise<LLMProvider> | null = null;
+  private llmModel: string;
   private maxIterations: number;
   private searchTool?: (query: string) => Promise<Citation[]>;
   private verbose: boolean;
 
   constructor(config: DeepResearchConfig = {}) {
     this.name = config.name || `ResearchAgent_${Math.random().toString(36).substr(2, 9)}`;
-    this.provider = createProvider(config.llm || 'openai/gpt-4o-mini');
+    this.llmModel = config.llm || 'openai/gpt-4o-mini';
     this.maxIterations = config.maxIterations ?? 5;
     this.searchTool = config.searchTool;
     this.verbose = config.verbose ?? false;
   }
 
+  private async getProvider(): Promise<LLMProvider> {
+    if (this.provider) return this.provider;
+    if (!this.providerPromise) {
+      this.providerPromise = (async () => {
+        const result = await resolveBackend(this.llmModel, { attribution: { agentId: this.name } });
+        this.provider = result.provider;
+        return result.provider;
+      })();
+    }
+    return this.providerPromise;
+  }
+
   /**
    * Conduct deep research on a topic
    */
@@ -115,7 +130,8 @@ export class DeepResearchAgent {
   }
 
   private async generateSearchQueries(query: string): Promise<string[]> {
-    const result = await this.provider.generateText({
+    const provider = await this.getProvider();
+    const result = await provider.generateText({
       messages: [
         {
           role: 'system',
@@ -133,7 +149,8 @@ export class DeepResearchAgent {
       ? `\n\nRelevant sources:\n${citations.map(c => `- ${c.title}: ${c.snippet || ''}`).join('\n')}`
       : '';
 
-    const result = await this.provider.generateText({
+    const provider = await this.getProvider();
+    const result = await provider.generateText({
       messages: [
         {
           role: 'system',

src/praisonai-ts/src/agent/simple.ts

@@ -3,6 +3,8 @@ import { Logger } from '../utils/logger';
 import type { ChatCompletionTool } from 'openai/resources/chat/completions';
 import type { DbAdapter, DbMessage, DbRun } from '../db/types';
 import { randomUUID } from 'crypto';
+import type { LLMProvider } from '../llm/providers/types';
+import type { BackendResolutionResult } from '../llm/backend-resolver';
 
 /**
  * Agent Configuration
@@ -116,6 +118,12 @@ export class Agent {
   private cacheTTL: number;
   private responseCache: Map<string, { response: string; timestamp: number }> = new Map();
   private telemetryEnabled: boolean;
+  
+  // AI SDK backend support
+  private _backend: LLMProvider | null = null;
+  private _backendPromise: Promise<BackendResolutionResult> | null = null;
+  private _backendSource: 'ai-sdk' | 'native' | 'custom' | 'legacy' = 'legacy';
+  private _useAISDKBackend: boolean = false;
 
   constructor(config: SimpleAgentConfig) {
     // Build instructions from either simple or advanced mode
@@ -148,7 +156,16 @@ export class Agent {
     this.cache = config.cache ?? false;
     this.cacheTTL = config.cacheTTL ?? 3600;
     this.telemetryEnabled = config.telemetry ?? false;
-    this.llmService = new OpenAIService(this.llm);
+    
+    // Parse model string to extract provider and model ID
+    // Format: "provider/model" or just "model"
+    const providerId = this.llm.includes('/') ? this.llm.split('/')[0] : 'openai';
+    const modelId = this.llm.includes('/') ? this.llm.split('/').slice(1).join('/') : this.llm;
+    
+    // For OpenAI, use OpenAIService directly for backward compatibility
+    // For other providers, we'll use the AI SDK backend via getBackend()
+    this._useAISDKBackend = providerId !== 'openai';
+    this.llmService = new OpenAIService(modelId);
 
     // Configure logging
     Logger.setVerbose(this.verbose);
@@ -207,13 +224,14 @@ export class Agent {
   }
 
   /**
-   * Generate a session ID based on current hour and agent name (like Python SDK)
+   * Generate a unique session ID based on current hour, agent name, and random suffix
    */
   private generateSessionId(): string {
     const now = new Date();
     const hourStr = now.toISOString().slice(0, 13).replace(/[-T:]/g, '');
     const hash = this.name ? this.name.slice(0, 6) : 'agent';
-    return `${hourStr}-${hash}`;
+    const randomSuffix = randomUUID().slice(0, 8);
+    return `${hourStr}-${hash}-${randomSuffix}`;
   }
 
   /**
@@ -432,8 +450,35 @@ export class Agent {
       
       let finalResponse = '';
       
-      if (this.stream && !this.tools) {
-        // Use streaming with full conversation history
+      // Use AI SDK backend for non-OpenAI providers
+      if (this._useAISDKBackend) {
+        const backend = await this.getBackend();
+        
+        if (this.stream && !this.tools) {
+          // Streaming with AI SDK backend
+          const stream = await backend.streamText({
+            messages,
+            temperature: 0.7
+          });
+          
+          let accumulated = '';
+          for await (const chunk of stream) {
+            if (chunk.text) {
+              process.stdout.write(chunk.text);
+              accumulated += chunk.text;
+            }
+          }
+          finalResponse = accumulated;
+        } else {
+          // Non-streaming with AI SDK backend
+          const result = await backend.generateText({
+            messages,
+            temperature: 0.7
+          });
+          finalResponse = result.text;
+        }
+      } else if (this.stream && !this.tools) {
+        // Use streaming with full conversation history (OpenAI)
         finalResponse = await this.llmService.streamChat(
           messages,
           0.7,
@@ -606,6 +651,79 @@ export class Agent {
   clearCache(): void {
     this.responseCache.clear();
   }
+
+  /**
+   * Get the resolved backend (AI SDK preferred, native fallback)
+   * Lazy initialization - backend is only resolved on first use
+   */
+  async getBackend(): Promise<LLMProvider> {
+    if (this._backend) {
+      return this._backend;
+    }
+
+    if (!this._backendPromise) {
+      this._backendPromise = (async () => {
+        const { resolveBackend } = await import('../llm/backend-resolver');
+        const result = await resolveBackend(this.llm, {
+          attribution: {
+            agentId: this.name,
+            runId: this.runId,
+            sessionId: this.sessionId,
+          },
+        });
+        this._backend = result.provider;
+        this._backendSource = result.source;
+        Logger.debug(`Agent ${this.name} using ${result.source} backend for ${this.llm}`);
+        return result;
+      })();
+    }
+
+    const result = await this._backendPromise;
+    return result.provider;
+  }
+
+  /**
+   * Get the backend source (ai-sdk, native, custom, or legacy)
+   */
+  getBackendSource(): 'ai-sdk' | 'native' | 'custom' | 'legacy' {
+    return this._backendSource;
+  }
+
+  /**
+   * Embed text using AI SDK (preferred) or native provider
+   * 
+   * @param text - Text to embed (string or array of strings)
+   * @param options - Embedding options
+   * @returns Embedding vector(s)
+   * 
+   * @example Single text
+   * ```typescript
+   * const embedding = await agent.embed("Hello world");
+   * ```
+   * 
+   * @example Multiple texts
+   * ```typescript
+   * const embeddings = await agent.embed(["Hello", "World"]);
+   * ```
+   */
+  async embed(text: string | string[], options?: { model?: string }): Promise<number[] | number[][]> {
+    const { embed, embedMany } = await import('../llm/embeddings');
+    
+    if (Array.isArray(text)) {
+      const result = await embedMany(text, { model: options?.model });
+      return result.embeddings;
+    } else {
+      const result = await embed(text, { model: options?.model });
+      return result.embedding;
+    }
+  }
+
+  /**
+   * Get the model string for this agent
+   */
+  getModel(): string {
+    return this.llm;
+  }
 }
 
 /**

src/praisonai-ts/src/auto/index.ts

@@ -2,7 +2,8 @@
  * AutoAgents - Automatic agent generation from task descriptions
  */
 
-import { createProvider, type LLMProvider, type Message } from '../llm/providers';
+import { type LLMProvider, type Message } from '../llm/providers';
+import { resolveBackend } from '../llm/backend-resolver';
 
 export interface AgentConfig {
   name: string;
@@ -36,25 +37,48 @@ export interface AutoAgentsConfig {
  * AutoAgents - Generate agent configurations from task descriptions
  */
 export class AutoAgents {
-  private provider: LLMProvider;
+  private provider: LLMProvider | null = null;
+  private providerPromise: Promise<LLMProvider> | null = null;
+  private llmModel: string;
   private pattern: string;
   private singleAgent: boolean;
   private verbose: boolean;
 
   constructor(config: AutoAgentsConfig = {}) {
-    this.provider = createProvider(config.llm || 'openai/gpt-4o-mini');
+    this.llmModel = config.llm || 'openai/gpt-4o-mini';
     this.pattern = config.pattern || 'sequential';
     this.singleAgent = config.singleAgent ?? false;
     this.verbose = config.verbose ?? false;
   }
 
+  /**
+   * Get the LLM provider (lazy initialization with AI SDK backend)
+   */
+  private async getProvider(): Promise<LLMProvider> {
+    if (this.provider) {
+      return this.provider;
+    }
+
+    if (!this.providerPromise) {
+      this.providerPromise = (async () => {
+        const result = await resolveBackend(this.llmModel, {
+          attribution: { agentId: 'AutoAgents' },
+        });
+        this.provider = result.provider;
+        return result.provider;
+      })();
+    }
+
+    return this.providerPromise;
+  }
+
   /**
    * Generate agent configuration from task description
    */
   async generate(taskDescription: string): Promise<TeamStructure> {
     const prompt = this.buildPrompt(taskDescription);
-    
-    const result = await this.provider.generateText({
+    const provider = await this.getProvider();
+    const result = await provider.generateText({
       messages: [
         { role: 'system', content: this.getSystemPrompt() },
         { role: 'user', content: prompt }

src/praisonai-ts/src/cli/commands/benchmark.ts

@@ -0,0 +1,551 @@
+/**
+ * Benchmark Command - Performance benchmarks for AI SDK vs Native backends
+ * 
+ * Measures:
+ * - Import time (cold start)
+ * - Memory usage
+ * - First-call latency
+ * - Streaming throughput
+ * - Embedding throughput
+ */
+
+import { outputJson, formatError } from '../output/json';
+import * as pretty from '../output/pretty';
+import { ERROR_CODES } from '../output/errors';
+
+export interface BenchmarkOptions {
+  verbose?: boolean;
+  output?: 'json' | 'text' | 'pretty';
+  json?: boolean;
+  iterations?: number;
+  backend?: 'ai-sdk' | 'native' | 'both';
+  real?: boolean;
+}
+
+interface BenchmarkResult {
+  name: string;
+  iterations: number;
+  mean: number;
+  min: number;
+  max: number;
+  p95: number;
+  stdDev: number;
+  unit: string;
+}
+
+interface BenchmarkReport {
+  timestamp: string;
+  results: BenchmarkResult[];
+  comparison?: {
+    aiSdk: BenchmarkResult;
+    native: BenchmarkResult;
+    difference: number;
+    winner: string;
+  }[];
+}
+
+const EXIT_CODES = {
+  SUCCESS: 0,
+  GENERAL_ERROR: 1,
+  INVALID_ARGS: 2,
+} as const;
+
+function formatBenchmarkSuccess(data: any, meta?: any): { success: true; data: any; meta?: any } {
+  return {
+    success: true as const,
+    data,
+    meta,
+  };
+}
+
+function calculateStats(values: number[]): { mean: number; min: number; max: number; p95: number; stdDev: number } {
+  if (values.length === 0) return { mean: 0, min: 0, max: 0, p95: 0, stdDev: 0 };
+  
+  const sorted = [...values].sort((a, b) => a - b);
+  const mean = values.reduce((a, b) => a + b, 0) / values.length;
+  const min = sorted[0];
+  const max = sorted[sorted.length - 1];
+  const p95Index = Math.floor(sorted.length * 0.95);
+  const p95 = sorted[p95Index] || max;
+  
+  const squaredDiffs = values.map(v => Math.pow(v - mean, 2));
+  const avgSquaredDiff = squaredDiffs.reduce((a, b) => a + b, 0) / values.length;
+  const stdDev = Math.sqrt(avgSquaredDiff);
+  
+  return { mean, min, max, p95, stdDev };
+}
+
+export async function execute(args: string[], options: BenchmarkOptions): Promise<void> {
+  const subcommand = args[0] || 'run';
+  const outputFormat = options.json ? 'json' : (options.output || 'pretty');
+
+  switch (subcommand) {
+    case 'run':
+      await runAllBenchmarks(args.slice(1), options, outputFormat);
+      break;
+    case 'import':
+      await importBenchmark(args.slice(1), options, outputFormat);
+      break;
+    case 'memory':
+      await memoryBenchmark(args.slice(1), options, outputFormat);
+      break;
+    case 'latency':
+      await latencyBenchmark(args.slice(1), options, outputFormat);
+      break;
+    case 'streaming':
+      await streamingBenchmark(args.slice(1), options, outputFormat);
+      break;
+    case 'embedding':
+      await embeddingBenchmark(args.slice(1), options, outputFormat);
+      break;
+    default:
+      if (outputFormat === 'json') {
+        outputJson(formatError(ERROR_CODES.INVALID_ARGS, `Unknown subcommand: ${subcommand}`));
+      } else {
+        await pretty.error(`Unknown subcommand: ${subcommand}`);
+        await pretty.info('Available subcommands: run, import, memory, latency, streaming, embedding');
+      }
+      process.exit(EXIT_CODES.INVALID_ARGS);
+  }
+}
+
+/**
+ * Run all benchmarks
+ */
+async function runAllBenchmarks(args: string[], options: BenchmarkOptions, outputFormat: string): Promise<void> {
+  const iterations = options.iterations || 5;
+  const results: BenchmarkResult[] = [];
+  
+  if (outputFormat !== 'json') {
+    await pretty.success('Running All Benchmarks');
+    console.log(`Iterations: ${iterations}`);
+    console.log('');
+  }
+  
+  // Import benchmark
+  const importResult = await measureImportTime(iterations);
+  results.push(importResult);
+  
+  // Memory benchmark
+  const memoryResult = await measureMemory(iterations);
+  results.push(memoryResult);
+  
+  // Latency benchmark (mock mode unless --real)
+  if (options.real) {
+    const latencyResult = await measureLatency(iterations, true);
+    results.push(latencyResult);
+  } else {
+    const latencyResult = await measureLatency(iterations, false);
+    results.push(latencyResult);
+  }
+  
+  const report: BenchmarkReport = {
+    timestamp: new Date().toISOString(),
+    results,
+  };
+  
+  if (outputFormat === 'json') {
+    outputJson(formatBenchmarkSuccess(report));
+  } else {
+    printBenchmarkTable(results);
+    console.log('');
+    await pretty.info('Use --real flag to run benchmarks with real API calls');
+  }
+}
+
+/**
+ * Benchmark import time
+ */
+async function importBenchmark(args: string[], options: BenchmarkOptions, outputFormat: string): Promise<void> {
+  const iterations = options.iterations || 10;
+  
+  if (outputFormat !== 'json') {
+    await pretty.success('Import Time Benchmark');
+    console.log(`Iterations: ${iterations}`);
+    console.log('');
+  }
+  
+  const results: BenchmarkResult[] = [];
+  
+  // Measure core import (without AI SDK)
+  const coreResult = await measureCoreImportTime(iterations);
+  results.push(coreResult);
+  
+  // Measure AI SDK import
+  const aiSdkResult = await measureAISDKImportTime(iterations);
+  results.push(aiSdkResult);
+  
+  // Measure full import (with AI SDK loaded)
+  const fullResult = await measureImportTime(iterations);
+  results.push(fullResult);
+  
+  if (outputFormat === 'json') {
+    outputJson(formatBenchmarkSuccess({ results }));
+  } else {
+    printBenchmarkTable(results);
+    console.log('');
+    
+    // Show comparison
+    const overhead = aiSdkResult.mean;
+    console.log(`AI SDK import overhead: ${overhead.toFixed(2)}ms`);
+    console.log(`Core import (no AI SDK): ${coreResult.mean.toFixed(2)}ms`);
+  }
+}
+
+/**
+ * Benchmark memory usage
+ */
+async function memoryBenchmark(args: string[], options: BenchmarkOptions, outputFormat: string): Promise<void> {
+  const iterations = options.iterations || 5;
+  
+  if (outputFormat !== 'json') {
+    await pretty.success('Memory Usage Benchmark');
+    console.log(`Iterations: ${iterations}`);
+    console.log('');
+  }
+  
+  const result = await measureMemory(iterations);
+  
+  if (outputFormat === 'json') {
+    outputJson(formatBenchmarkSuccess({ result }));
+  } else {
+    printBenchmarkTable([result]);
+  }
+}
+
+/**
+ * Benchmark first-call latency
+ */
+async function latencyBenchmark(args: string[], options: BenchmarkOptions, outputFormat: string): Promise<void> {
+  const iterations = options.iterations || 3;
+  const useReal = options.real || false;
+  
+  if (outputFormat !== 'json') {
+    await pretty.success('First-Call Latency Benchmark');
+    console.log(`Iterations: ${iterations}`);
+    console.log(`Mode: ${useReal ? 'Real API' : 'Mock'}`);
+    console.log('');
+  }
+  
+  const result = await measureLatency(iterations, useReal);
+  
+  if (outputFormat === 'json') {
+    outputJson(formatBenchmarkSuccess({ result }));
+  } else {
+    printBenchmarkTable([result]);
+    if (!useReal) {
+      console.log('');
+      await pretty.info('Use --real flag to measure with real API calls');
+    }
+  }
+}
+
+/**
+ * Benchmark streaming throughput
+ */
+async function streamingBenchmark(args: string[], options: BenchmarkOptions, outputFormat: string): Promise<void> {
+  const iterations = options.iterations || 3;
+  const useReal = options.real || false;
+  
+  if (outputFormat !== 'json') {
+    await pretty.success('Streaming Throughput Benchmark');
+    console.log(`Iterations: ${iterations}`);
+    console.log(`Mode: ${useReal ? 'Real API' : 'Mock'}`);
+    console.log('');
+  }
+  
+  if (!useReal) {
+    if (outputFormat === 'json') {
+      outputJson(formatBenchmarkSuccess({ 
+        message: 'Streaming benchmark requires --real flag',
+        result: null 
+      }));
+    } else {
+      await pretty.info('Streaming benchmark requires --real flag for meaningful results');
+    }
+    return;
+  }
+  
+  const result = await measureStreaming(iterations);
+  
+  if (outputFormat === 'json') {
+    outputJson(formatBenchmarkSuccess({ result }));
+  } else {
+    printBenchmarkTable([result]);
+  }
+}
+
+/**
+ * Benchmark embedding throughput
+ */
+async function embeddingBenchmark(args: string[], options: BenchmarkOptions, outputFormat: string): Promise<void> {
+  const iterations = options.iterations || 3;
+  const useReal = options.real || false;
+  
+  if (outputFormat !== 'json') {
+    await pretty.success('Embedding Throughput Benchmark');
+    console.log(`Iterations: ${iterations}`);
+    console.log(`Mode: ${useReal ? 'Real API' : 'Mock'}`);
+    console.log('');
+  }
+  
+  if (!useReal) {
+    if (outputFormat === 'json') {
+      outputJson(formatBenchmarkSuccess({ 
+        message: 'Embedding benchmark requires --real flag',
+        result: null 
+      }));
+    } else {
+      await pretty.info('Embedding benchmark requires --real flag for meaningful results');
+    }
+    return;
+  }
+  
+  const result = await measureEmbedding(iterations);
+  
+  if (outputFormat === 'json') {
+    outputJson(formatBenchmarkSuccess({ result }));
+  } else {
+    printBenchmarkTable([result]);
+  }
+}
+
+// Measurement functions
+
+async function measureCoreImportTime(iterations: number): Promise<BenchmarkResult> {
+  const times: number[] = [];
+  
+  for (let i = 0; i < iterations; i++) {
+    // Clear require cache for accurate measurement
+    const cacheKeys = Object.keys(require.cache).filter(k => 
+      k.includes('praisonai-ts') && !k.includes('node_modules')
+    );
+    cacheKeys.forEach(k => delete require.cache[k]);
+    
+    const start = performance.now();
+    // Import just the Agent class
+    await import('../../agent/simple');
+    const end = performance.now();
+    times.push(end - start);
+  }
+  
+  const stats = calculateStats(times);
+  return {
+    name: 'Core Import (Agent)',
+    iterations,
+    ...stats,
+    unit: 'ms',
+  };
+}
+
+async function measureAISDKImportTime(iterations: number): Promise<BenchmarkResult> {
+  const times: number[] = [];
+  
+  for (let i = 0; i < iterations; i++) {
+    // Clear AI SDK from cache
+    const cacheKeys = Object.keys(require.cache).filter(k => k.includes('ai'));
+    cacheKeys.forEach(k => delete require.cache[k]);
+    
+    const start = performance.now();
+    try {
+      await import('ai');
+    } catch {
+      // AI SDK not installed
+    }
+    const end = performance.now();
+    times.push(end - start);
+  }
+  
+  const stats = calculateStats(times);
+  return {
+    name: 'AI SDK Import',
+    iterations,
+    ...stats,
+    unit: 'ms',
+  };
+}
+
+async function measureImportTime(iterations: number): Promise<BenchmarkResult> {
+  const times: number[] = [];
+  
+  for (let i = 0; i < iterations; i++) {
+    const start = performance.now();
+    // Import the main module
+    await import('../../index');
+    const end = performance.now();
+    times.push(end - start);
+  }
+  
+  const stats = calculateStats(times);
+  return {
+    name: 'Full Import',
+    iterations,
+    ...stats,
+    unit: 'ms',
+  };
+}
+
+async function measureMemory(iterations: number): Promise<BenchmarkResult> {
+  const measurements: number[] = [];
+  
+  for (let i = 0; i < iterations; i++) {
+    // Force GC if available
+    if (global.gc) global.gc();
+    
+    const before = process.memoryUsage().heapUsed;
+    
+    // Import and create an agent
+    const { Agent } = await import('../../agent/simple');
+    const agent = new Agent({ instructions: 'Test agent' });
+    
+    const after = process.memoryUsage().heapUsed;
+    measurements.push((after - before) / 1024 / 1024); // Convert to MB
+    
+    // Keep reference to prevent GC
+    void agent;
+  }
+  
+  const stats = calculateStats(measurements);
+  return {
+    name: 'Memory (Agent creation)',
+    iterations,
+    ...stats,
+    unit: 'MB',
+  };
+}
+
+async function measureLatency(iterations: number, useReal: boolean): Promise<BenchmarkResult> {
+  const times: number[] = [];
+  
+  if (useReal) {
+    const { Agent } = await import('../../agent/simple');
+    
+    for (let i = 0; i < iterations; i++) {
+      const agent = new Agent({ 
+        instructions: 'Say "OK" and nothing else.',
+        stream: false,
+      });
+      
+      const start = performance.now();
+      try {
+        await agent.chat('Hi');
+      } catch {
+        // API error, skip
+      }
+      const end = performance.now();
+      times.push(end - start);
+    }
+  } else {
+    // Mock latency measurement
+    for (let i = 0; i < iterations; i++) {
+      const start = performance.now();
+      // Simulate backend resolution
+      const { resolveBackend } = await import('../../llm/backend-resolver');
+      await resolveBackend('openai/gpt-4o-mini');
+      const end = performance.now();
+      times.push(end - start);
+    }
+  }
+  
+  const stats = calculateStats(times);
+  return {
+    name: useReal ? 'First-Call Latency (Real)' : 'Backend Resolution',
+    iterations,
+    ...stats,
+    unit: 'ms',
+  };
+}
+
+async function measureStreaming(iterations: number): Promise<BenchmarkResult> {
+  const throughputs: number[] = [];
+  
+  const { Agent } = await import('../../agent/simple');
+  
+  for (let i = 0; i < iterations; i++) {
+    const agent = new Agent({ 
+      instructions: 'Count from 1 to 20.',
+      stream: true,
+    });
+    
+    let tokenCount = 0;
+    const start = performance.now();
+    
+    try {
+      // Note: This is a simplified measurement
+      const response = await agent.chat('Count');
+      tokenCount = response.split(/\s+/).length;
+    } catch {
+      // API error
+    }
+    
+    const end = performance.now();
+    const duration = (end - start) / 1000; // seconds
+    throughputs.push(tokenCount / duration);
+  }
+  
+  const stats = calculateStats(throughputs);
+  return {
+    name: 'Streaming Throughput',
+    iterations,
+    ...stats,
+    unit: 'tokens/sec',
+  };
+}
+
+async function measureEmbedding(iterations: number): Promise<BenchmarkResult> {
+  const throughputs: number[] = [];
+  
+  const { embedMany } = await import('../../llm/embeddings');
+  
+  // Test texts
+  const texts = Array(10).fill(0).map((_, i) => `This is test text number ${i + 1} for embedding benchmark.`);
+  
+  for (let i = 0; i < iterations; i++) {
+    const start = performance.now();
+    
+    try {
+      await embedMany(texts);
+    } catch {
+      // API error
+    }
+    
+    const end = performance.now();
+    const duration = (end - start) / 1000; // seconds
+    throughputs.push(texts.length / duration);
+  }
+  
+  const stats = calculateStats(throughputs);
+  return {
+    name: 'Embedding Throughput',
+    iterations,
+    ...stats,
+    unit: 'vectors/sec',
+  };
+}
+
+function printBenchmarkTable(results: BenchmarkResult[]): void {
+  console.log('Benchmark Results');
+  console.log('─'.repeat(80));
+  console.log(
+    'Name'.padEnd(30) +
+    'Mean'.padStart(10) +
+    'Min'.padStart(10) +
+    'Max'.padStart(10) +
+    'P95'.padStart(10) +
+    'Unit'.padStart(10)
+  );
+  console.log('─'.repeat(80));
+  
+  for (const r of results) {
+    console.log(
+      r.name.padEnd(30) +
+      r.mean.toFixed(2).padStart(10) +
+      r.min.toFixed(2).padStart(10) +
+      r.max.toFixed(2).padStart(10) +
+      r.p95.toFixed(2).padStart(10) +
+      r.unit.padStart(10)
+    );
+  }
+  
+  console.log('─'.repeat(80));
+}

src/praisonai-ts/src/cli/commands/chat.ts

@@ -2,7 +2,7 @@
  * Chat command - Chat with an AI agent
  */
 
-import { createProvider } from '../../llm/providers';
+import { resolveBackend } from '../../llm/backend-resolver';
 import { Session } from '../../session';
 import { resolveConfig } from '../config/resolve';
 import { printSuccess, printError, outputJson, formatSuccess, formatError } from '../output/json';
@@ -46,7 +46,7 @@ export async function execute(args: string[], options: ChatOptions): Promise<voi
   const outputFormat = options.json ? 'json' : (options.output || 'pretty');
 
   try {
-    const provider = createProvider(config.model);
+    const { provider } = await resolveBackend(config.model);
     const session = new Session({ id: options.session });
     session.addMessage({ role: 'user', content: prompt });
 

src/praisonai-ts/src/cli/commands/embed.ts

@@ -0,0 +1,362 @@
+/**
+ * Embed Command - Generate embeddings using AI SDK (preferred) or native provider
+ * 
+ * Subcommands:
+ * - text: Embed a single text or multiple texts
+ * - file: Embed contents of a file
+ * - query: Find similar texts using embeddings
+ */
+
+import { outputJson, formatError } from '../output/json';
+import * as pretty from '../output/pretty';
+import { ERROR_CODES } from '../output/errors';
+
+// Simple success formatter for embed command
+function formatEmbedSuccess(data: any, meta?: any): { success: true; data: any; meta?: any } {
+  return {
+    success: true as const,
+    data,
+    meta,
+  };
+}
+import * as fs from 'fs';
+import * as path from 'path';
+
+export interface EmbedOptions {
+  verbose?: boolean;
+  output?: 'json' | 'text' | 'pretty';
+  json?: boolean;
+  model?: string;
+  provider?: string;
+  backend?: 'ai-sdk' | 'native' | 'auto';
+  dimensions?: number;
+  file?: string;
+  save?: string;
+}
+
+const EXIT_CODES = {
+  SUCCESS: 0,
+  GENERAL_ERROR: 1,
+  INVALID_ARGS: 2,
+} as const;
+
+export async function execute(args: string[], options: EmbedOptions): Promise<void> {
+  const subcommand = args[0] || 'text';
+  const outputFormat = options.json ? 'json' : (options.output || 'pretty');
+
+  switch (subcommand) {
+    case 'text':
+      await textCommand(args.slice(1), options, outputFormat);
+      break;
+    case 'file':
+      await fileCommand(args.slice(1), options, outputFormat);
+      break;
+    case 'query':
+      await queryCommand(args.slice(1), options, outputFormat);
+      break;
+    case 'models':
+      await modelsCommand(args.slice(1), options, outputFormat);
+      break;
+    default:
+      // If no subcommand, treat args[0] as text to embed
+      if (args[0] && !['text', 'file', 'query', 'models'].includes(args[0])) {
+        await textCommand(args, options, outputFormat);
+      } else {
+        if (outputFormat === 'json') {
+          outputJson(formatError(ERROR_CODES.INVALID_ARGS, `Unknown subcommand: ${subcommand}`));
+        } else {
+          await pretty.error(`Unknown subcommand: ${subcommand}`);
+          await pretty.info('Available subcommands: text, file, query, models');
+        }
+        process.exit(EXIT_CODES.INVALID_ARGS);
+      }
+  }
+}
+
+/**
+ * Embed text(s)
+ */
+async function textCommand(args: string[], options: EmbedOptions, outputFormat: string): Promise<void> {
+  const texts = args.filter(a => !a.startsWith('-'));
+  
+  if (texts.length === 0) {
+    if (outputFormat === 'json') {
+      outputJson(formatError(ERROR_CODES.MISSING_ARG, 'Please provide text to embed'));
+    } else {
+      await pretty.error('Please provide text to embed');
+      await pretty.info('Usage: praisonai-ts embed text "Hello world"');
+    }
+    process.exit(EXIT_CODES.INVALID_ARGS);
+  }
+
+  try {
+    const { embed, embedMany, getDefaultEmbeddingModel, isAISDKAvailable } = await import('../../llm');
+    
+    const startTime = Date.now();
+    const model = options.model || getDefaultEmbeddingModel(options.provider);
+    const aiSdkAvailable = await isAISDKAvailable();
+    
+    let result: { embeddings: number[][]; usage?: { tokens: number } };
+    
+    if (texts.length === 1) {
+      const single = await embed(texts[0], { 
+        model, 
+        backend: options.backend 
+      });
+      result = { 
+        embeddings: [single.embedding], 
+        usage: single.usage 
+      };
+    } else {
+      result = await embedMany(texts, { 
+        model, 
+        backend: options.backend 
+      });
+    }
+    
+    const duration = Date.now() - startTime;
+    
+    // Save to file if requested
+    if (options.save) {
+      const saveData = {
+        texts,
+        embeddings: result.embeddings,
+        model,
+        backend: aiSdkAvailable ? 'ai-sdk' : 'native',
+        timestamp: new Date().toISOString(),
+      };
+      fs.writeFileSync(options.save, JSON.stringify(saveData, null, 2));
+    }
+    
+    if (outputFormat === 'json') {
+      outputJson(formatEmbedSuccess({
+        texts,
+        embeddings: result.embeddings,
+        dimensions: result.embeddings[0]?.length || 0,
+        count: result.embeddings.length,
+      }, {
+        model,
+        backend: aiSdkAvailable ? 'ai-sdk' : 'native',
+        duration_ms: duration,
+        tokens: result.usage?.tokens,
+        saved_to: options.save,
+      }));
+    } else {
+      await pretty.success(`Embedded ${texts.length} text(s)`);
+      await pretty.info(`Model: ${model}`);
+      await pretty.info(`Backend: ${aiSdkAvailable ? 'AI SDK' : 'Native'}`);
+      await pretty.info(`Dimensions: ${result.embeddings[0]?.length || 0}`);
+      await pretty.info(`Duration: ${duration}ms`);
+      if (result.usage?.tokens) {
+        await pretty.info(`Tokens: ${result.usage.tokens}`);
+      }
+      if (options.save) {
+        await pretty.info(`Saved to: ${options.save}`);
+      }
+      if (options.verbose) {
+        console.log('\nEmbeddings (first 5 values each):');
+        result.embeddings.forEach((emb, i) => {
+          console.log(`  [${i}]: [${emb.slice(0, 5).join(', ')}...]`);
+        });
+      }
+    }
+  } catch (error: any) {
+    if (outputFormat === 'json') {
+      outputJson(formatError(ERROR_CODES.UNKNOWN, error.message));
+    } else {
+      await pretty.error(`Embedding failed: ${error.message}`);
+    }
+    process.exit(EXIT_CODES.GENERAL_ERROR);
+  }
+}
+
+/**
+ * Embed file contents
+ */
+async function fileCommand(args: string[], options: EmbedOptions, outputFormat: string): Promise<void> {
+  const filePath = args[0];
+  
+  if (!filePath) {
+    if (outputFormat === 'json') {
+      outputJson(formatError(ERROR_CODES.MISSING_ARG, 'Please provide a file path'));
+    } else {
+      await pretty.error('Please provide a file path');
+      await pretty.info('Usage: praisonai-ts embed file ./document.txt');
+    }
+    process.exit(EXIT_CODES.INVALID_ARGS);
+  }
+
+  try {
+    const absolutePath = path.resolve(filePath);
+    
+    if (!fs.existsSync(absolutePath)) {
+      throw new Error(`File not found: ${absolutePath}`);
+    }
+    
+    const content = fs.readFileSync(absolutePath, 'utf-8');
+    const { embed, getDefaultEmbeddingModel, isAISDKAvailable } = await import('../../llm');
+    
+    const startTime = Date.now();
+    const model = options.model || getDefaultEmbeddingModel(options.provider);
+    const aiSdkAvailable = await isAISDKAvailable();
+    
+    const result = await embed(content, { 
+      model, 
+      backend: options.backend 
+    });
+    
+    const duration = Date.now() - startTime;
+    
+    // Save to file if requested
+    if (options.save) {
+      const saveData = {
+        file: absolutePath,
+        embedding: result.embedding,
+        model,
+        backend: aiSdkAvailable ? 'ai-sdk' : 'native',
+        timestamp: new Date().toISOString(),
+      };
+      fs.writeFileSync(options.save, JSON.stringify(saveData, null, 2));
+    }
+    
+    if (outputFormat === 'json') {
+      outputJson(formatEmbedSuccess({
+        file: absolutePath,
+        embedding: result.embedding,
+        dimensions: result.embedding.length,
+        content_length: content.length,
+      }, {
+        model,
+        backend: aiSdkAvailable ? 'ai-sdk' : 'native',
+        duration_ms: duration,
+        tokens: result.usage?.tokens,
+        saved_to: options.save,
+      }));
+    } else {
+      await pretty.success(`Embedded file: ${filePath}`);
+      await pretty.info(`Model: ${model}`);
+      await pretty.info(`Backend: ${aiSdkAvailable ? 'AI SDK' : 'Native'}`);
+      await pretty.info(`Dimensions: ${result.embedding.length}`);
+      await pretty.info(`Content length: ${content.length} chars`);
+      await pretty.info(`Duration: ${duration}ms`);
+      if (options.save) {
+        await pretty.info(`Saved to: ${options.save}`);
+      }
+    }
+  } catch (error: any) {
+    if (outputFormat === 'json') {
+      outputJson(formatError(ERROR_CODES.UNKNOWN, error.message));
+    } else {
+      await pretty.error(`Embedding failed: ${error.message}`);
+    }
+    process.exit(EXIT_CODES.GENERAL_ERROR);
+  }
+}
+
+/**
+ * Query similar texts
+ */
+async function queryCommand(args: string[], options: EmbedOptions, outputFormat: string): Promise<void> {
+  const query = args[0];
+  const dataFile = options.file;
+  
+  if (!query) {
+    if (outputFormat === 'json') {
+      outputJson(formatError(ERROR_CODES.MISSING_ARG, 'Please provide a query'));
+    } else {
+      await pretty.error('Please provide a query');
+      await pretty.info('Usage: praisonai-ts embed query "search text" --file embeddings.json');
+    }
+    process.exit(EXIT_CODES.INVALID_ARGS);
+  }
+  
+  if (!dataFile) {
+    if (outputFormat === 'json') {
+      outputJson(formatError(ERROR_CODES.MISSING_ARG, 'Please provide --file with embeddings data'));
+    } else {
+      await pretty.error('Please provide --file with embeddings data');
+    }
+    process.exit(EXIT_CODES.INVALID_ARGS);
+  }
+
+  try {
+    const { embed, cosineSimilarity, getDefaultEmbeddingModel } = await import('../../llm');
+    
+    // Load embeddings data
+    const data = JSON.parse(fs.readFileSync(dataFile, 'utf-8'));
+    const texts: string[] = data.texts || [];
+    const embeddings: number[][] = data.embeddings || [];
+    
+    if (embeddings.length === 0) {
+      throw new Error('No embeddings found in data file');
+    }
+    
+    // Embed the query
+    const model = options.model || data.model || getDefaultEmbeddingModel(options.provider);
+    const queryResult = await embed(query, { model, backend: options.backend });
+    
+    // Calculate similarities
+    const similarities = embeddings.map((emb, i) => ({
+      index: i,
+      text: texts[i] || `[${i}]`,
+      score: cosineSimilarity(queryResult.embedding, emb),
+    }));
+    
+    // Sort by similarity (descending)
+    similarities.sort((a, b) => b.score - a.score);
+    
+    // Take top 5
+    const topResults = similarities.slice(0, 5);
+    
+    if (outputFormat === 'json') {
+      outputJson(formatEmbedSuccess({
+        query,
+        results: topResults,
+      }, {
+        model,
+        total_embeddings: embeddings.length,
+      }));
+    } else {
+      await pretty.success(`Query: "${query}"`);
+      console.log('\nTop results:');
+      topResults.forEach((r, i) => {
+        console.log(`  ${i + 1}. [${(r.score * 100).toFixed(1)}%] ${r.text.substring(0, 80)}${r.text.length > 80 ? '...' : ''}`);
+      });
+    }
+  } catch (error: any) {
+    if (outputFormat === 'json') {
+      outputJson(formatError(ERROR_CODES.UNKNOWN, error.message));
+    } else {
+      await pretty.error(`Query failed: ${error.message}`);
+    }
+    process.exit(EXIT_CODES.GENERAL_ERROR);
+  }
+}
+
+/**
+ * List available embedding models
+ */
+async function modelsCommand(args: string[], options: EmbedOptions, outputFormat: string): Promise<void> {
+  const models = [
+    { provider: 'openai', model: 'text-embedding-3-small', dimensions: 1536, description: 'Fast, cost-effective' },
+    { provider: 'openai', model: 'text-embedding-3-large', dimensions: 3072, description: 'Higher quality' },
+    { provider: 'openai', model: 'text-embedding-ada-002', dimensions: 1536, description: 'Legacy model' },
+    { provider: 'google', model: 'text-embedding-004', dimensions: 768, description: 'Google embedding' },
+    { provider: 'cohere', model: 'embed-english-v3.0', dimensions: 1024, description: 'Cohere English' },
+    { provider: 'cohere', model: 'embed-multilingual-v3.0', dimensions: 1024, description: 'Cohere Multilingual' },
+  ];
+  
+  if (outputFormat === 'json') {
+    outputJson(formatEmbedSuccess({ models }));
+  } else {
+    await pretty.success('Available Embedding Models');
+    console.log('');
+    console.log('Provider    Model                      Dimensions  Description');
+    console.log('─'.repeat(75));
+    models.forEach(m => {
+      console.log(`${m.provider.padEnd(12)}${m.model.padEnd(27)}${String(m.dimensions).padEnd(12)}${m.description}`);
+    });
+    console.log('');
+    await pretty.info('Usage: praisonai-ts embed text "Hello" --model openai/text-embedding-3-small');
+  }
+}

src/praisonai-ts/src/cli/commands/llm.ts

@@ -0,0 +1,777 @@
+/**
+ * LLM Command - AI SDK provider management and testing
+ * 
+ * Subcommands:
+ * - providers: List available AI SDK providers
+ * - test: Test connectivity to a provider
+ * - validate: Validate provider configuration
+ * - run: Run a prompt with a specific model
+ */
+
+import { outputJson, formatSuccess, formatError } from '../output/json';
+import * as pretty from '../output/pretty';
+import { ERROR_CODES } from '../output/errors';
+
+export interface LLMOptions {
+  verbose?: boolean;
+  output?: 'json' | 'text' | 'pretty';
+  json?: boolean;
+  model?: string;
+  stream?: boolean;
+  timeout?: number;
+  provider?: string;
+  schema?: string;
+  tool?: string;
+}
+
+// Exit codes specific to LLM commands
+const LLM_EXIT_CODES = {
+  SUCCESS: 0,
+  GENERAL_ERROR: 1,
+  INVALID_ARGS: 2,
+  AUTH_ERROR: 3,
+  PROVIDER_NOT_FOUND: 4,
+  NETWORK_ERROR: 5,
+  TIMEOUT: 6,
+} as const;
+
+export async function execute(args: string[], options: LLMOptions): Promise<void> {
+  const subcommand = args[0] || 'providers';
+  const outputFormat = options.json ? 'json' : (options.output || 'pretty');
+
+  switch (subcommand) {
+    case 'providers':
+      await providersCommand(args.slice(1), options, outputFormat);
+      break;
+    case 'test':
+      await testCommand(args.slice(1), options, outputFormat);
+      break;
+    case 'validate':
+      await validateCommand(args.slice(1), options, outputFormat);
+      break;
+    case 'run':
+      await runCommand(args.slice(1), options, outputFormat);
+      break;
+    case 'models':
+      await modelsCommand(args.slice(1), options, outputFormat);
+      break;
+    case 'config':
+      await configCommand(args.slice(1), options, outputFormat);
+      break;
+    case 'trace':
+      await traceCommand(args.slice(1), options, outputFormat);
+      break;
+    case 'tools':
+      await toolsCommand(args.slice(1), options, outputFormat);
+      break;
+    case 'json':
+      await jsonCommand(args.slice(1), options, outputFormat);
+      break;
+    default:
+      if (outputFormat === 'json') {
+        outputJson(formatError(ERROR_CODES.INVALID_ARGS, `Unknown subcommand: ${subcommand}`));
+      } else {
+        await pretty.error(`Unknown subcommand: ${subcommand}`);
+        await pretty.info('Available subcommands: providers, test, validate, run, models, config, trace, tools, json');
+      }
+      process.exit(LLM_EXIT_CODES.INVALID_ARGS);
+  }
+}
+
+/**
+ * List available AI SDK providers
+ */
+async function providersCommand(args: string[], options: LLMOptions, outputFormat: string): Promise<void> {
+  try {
+    const { 
+      listSupportedProviders, 
+      AISDK_PROVIDERS, 
+      validateProviderApiKey,
+      isAISDKAvailable,
+      getAISDKVersion
+    } = await import('../../llm/providers/ai-sdk');
+    
+    const providers = listSupportedProviders();
+    const aiSdkAvailable = await isAISDKAvailable();
+    const aiSdkVersion = await getAISDKVersion();
+    
+    const providerDetails = providers.map((id: string) => {
+      const info = AISDK_PROVIDERS[id as keyof typeof AISDK_PROVIDERS];
+      const hasApiKey = validateProviderApiKey(id);
+      return {
+        id,
+        package: info?.package || 'custom',
+        envKey: info?.envKey || 'N/A',
+        hasApiKey,
+        status: hasApiKey ? 'ready' : 'missing_key'
+      };
+    });
+
+    if (outputFormat === 'json') {
+      outputJson(formatSuccess({
+        ai_sdk_available: aiSdkAvailable,
+        ai_sdk_version: aiSdkVersion,
+        providers: providerDetails,
+        total: providers.length
+      }));
+    } else {
+      await pretty.heading('AI SDK Providers');
+      
+      if (aiSdkAvailable) {
+        await pretty.success(`AI SDK: ${aiSdkVersion || 'installed'}`);
+      } else {
+        await pretty.warn('AI SDK not installed. Run: npm install ai');
+      }
+      
+      await pretty.newline();
+      await pretty.plain('  Available Providers:');
+      
+      for (const p of providerDetails) {
+        const status = p.hasApiKey ? '✅' : '⚠️';
+        const keyInfo = p.hasApiKey ? '🔑' : `Missing ${p.envKey}`;
+        await pretty.plain(`    ${status} ${p.id.padEnd(20)} ${keyInfo}`);
+        
+        if (options.verbose) {
+          await pretty.dim(`        Package: ${p.package}`);
+        }
+      }
+      
+      await pretty.newline();
+      await pretty.info('Set API keys via environment variables');
+      await pretty.dim('  Example: export OPENAI_API_KEY=sk-...');
+    }
+  } catch (error) {
+    handleError(error, outputFormat, 'Failed to list providers');
+  }
+}
+
+/**
+ * Test connectivity to a provider
+ */
+async function testCommand(args: string[], options: LLMOptions, outputFormat: string): Promise<void> {
+  const providerId = args[0] || options.provider;
+  
+  if (!providerId) {
+    if (outputFormat === 'json') {
+      outputJson(formatError(ERROR_CODES.MISSING_ARG, 'Provider ID required'));
+    } else {
+      await pretty.error('Provider ID required. Usage: llm test <provider>');
+      await pretty.dim('  Example: praisonai-ts llm test openai');
+    }
+    process.exit(LLM_EXIT_CODES.INVALID_ARGS);
+    return;
+  }
+
+  try {
+    const { 
+      createAISDKBackend, 
+      validateProviderApiKey,
+      getMissingApiKeyMessage,
+      isProviderSupported
+    } = await import('../../llm/providers/ai-sdk');
+    
+    // Check if provider is supported
+    if (!isProviderSupported(providerId)) {
+      if (outputFormat === 'json') {
+        outputJson(formatError('PROVIDER_NOT_FOUND', `Provider '${providerId}' is not supported`));
+      } else {
+        await pretty.error(`Provider '${providerId}' is not supported`);
+      }
+      process.exit(LLM_EXIT_CODES.PROVIDER_NOT_FOUND);
+      return;
+    }
+    
+    // Check API key
+    if (!validateProviderApiKey(providerId)) {
+      const msg = getMissingApiKeyMessage(providerId);
+      if (outputFormat === 'json') {
+        outputJson(formatError('AUTH_ERROR', msg));
+      } else {
+        await pretty.error(msg);
+      }
+      process.exit(LLM_EXIT_CODES.AUTH_ERROR);
+      return;
+    }
+    
+    // Determine test model based on provider
+    const testModels: Record<string, string> = {
+      openai: 'gpt-4o-mini',
+      anthropic: 'claude-3-haiku-20240307',
+      google: 'gemini-1.5-flash',
+      groq: 'llama-3.1-8b-instant',
+      mistral: 'mistral-small-latest',
+      cohere: 'command-light',
+      deepseek: 'deepseek-chat',
+    };
+    
+    const modelId = options.model || testModels[providerId] || 'default';
+    const modelString = `${providerId}/${modelId}`;
+    
+    if (outputFormat !== 'json') {
+      await pretty.info(`Testing ${modelString}...`);
+    }
+    
+    const startTime = Date.now();
+    const backend = createAISDKBackend(modelString, {
+      timeout: options.timeout || 30000,
+      maxRetries: 0, // No retries for test
+    });
+    
+    const result = await backend.generateText({
+      messages: [
+        { role: 'user', content: 'Say "OK" and nothing else.' }
+      ],
+      maxTokens: 10,
+      temperature: 0,
+    });
+    
+    const duration = Date.now() - startTime;
+    
+    if (outputFormat === 'json') {
+      outputJson(formatSuccess({
+        provider: providerId,
+        model: modelId,
+        status: 'success',
+        duration_ms: duration,
+        response: result.text,
+        usage: result.usage
+      }));
+    } else {
+      await pretty.success(`Connection successful! (${duration}ms)`);
+      await pretty.plain(`  Provider: ${providerId}`);
+      await pretty.plain(`  Model: ${modelId}`);
+      await pretty.plain(`  Response: ${result.text.trim()}`);
+      if (result.usage) {
+        await pretty.dim(`  Tokens: ${result.usage.totalTokens}`);
+      }
+    }
+  } catch (error) {
+    handleError(error, outputFormat, `Failed to test provider '${providerId}'`);
+  }
+}
+
+/**
+ * Validate provider configuration
+ */
+async function validateCommand(args: string[], options: LLMOptions, outputFormat: string): Promise<void> {
+  const providerId = args[0] || options.provider;
+  
+  if (!providerId) {
+    if (outputFormat === 'json') {
+      outputJson(formatError(ERROR_CODES.MISSING_ARG, 'Provider ID required'));
+    } else {
+      await pretty.error('Provider ID required. Usage: llm validate --provider <id>');
+    }
+    process.exit(LLM_EXIT_CODES.INVALID_ARGS);
+    return;
+  }
+
+  try {
+    const { 
+      isProviderSupported,
+      validateProviderApiKey,
+      getProviderEnvKey,
+      getProviderPackage,
+      isAISDKAvailable
+    } = await import('../../llm/providers/ai-sdk');
+    
+    const checks: Array<{ name: string; passed: boolean; message: string }> = [];
+    
+    // Check AI SDK availability
+    const aiSdkAvailable = await isAISDKAvailable();
+    checks.push({
+      name: 'AI SDK Installed',
+      passed: aiSdkAvailable,
+      message: aiSdkAvailable ? 'AI SDK is installed' : 'AI SDK not found. Run: npm install ai'
+    });
+    
+    // Check provider support
+    const isSupported = isProviderSupported(providerId);
+    checks.push({
+      name: 'Provider Supported',
+      passed: isSupported,
+      message: isSupported ? `Provider '${providerId}' is supported` : `Provider '${providerId}' is not supported`
+    });
+    
+    if (isSupported) {
+      // Check provider package
+      const pkg = getProviderPackage(providerId);
+      if (pkg) {
+        let pkgInstalled = false;
+        try {
+          require.resolve(pkg);
+          pkgInstalled = true;
+        } catch {
+          pkgInstalled = false;
+        }
+        checks.push({
+          name: 'Provider Package',
+          passed: pkgInstalled,
+          message: pkgInstalled ? `${pkg} is installed` : `${pkg} not found. Run: npm install ${pkg}`
+        });
+      }
+      
+      // Check API key
+      const hasApiKey = validateProviderApiKey(providerId);
+      const envKey = getProviderEnvKey(providerId);
+      checks.push({
+        name: 'API Key',
+        passed: hasApiKey,
+        message: hasApiKey 
+          ? `${envKey} is set` 
+          : `${envKey} is not set`
+      });
+    }
+    
+    const allPassed = checks.every(c => c.passed);
+    
+    if (outputFormat === 'json') {
+      outputJson(formatSuccess({
+        provider: providerId,
+        valid: allPassed,
+        checks
+      }));
+    } else {
+      await pretty.heading(`Validation: ${providerId}`);
+      
+      for (const check of checks) {
+        const icon = check.passed ? '✅' : '❌';
+        await pretty.plain(`  ${icon} ${check.name}: ${check.message}`);
+      }
+      
+      await pretty.newline();
+      if (allPassed) {
+        await pretty.success('All checks passed!');
+      } else {
+        await pretty.warn('Some checks failed. Fix the issues above.');
+        process.exit(LLM_EXIT_CODES.GENERAL_ERROR);
+      }
+    }
+  } catch (error) {
+    handleError(error, outputFormat, `Failed to validate provider '${providerId}'`);
+  }
+}
+
+/**
+ * Run a prompt with a specific model
+ */
+async function runCommand(args: string[], options: LLMOptions, outputFormat: string): Promise<void> {
+  const prompt = args.join(' ');
+  
+  if (!prompt) {
+    if (outputFormat === 'json') {
+      outputJson(formatError(ERROR_CODES.MISSING_ARG, 'Prompt required'));
+    } else {
+      await pretty.error('Prompt required. Usage: llm run "<prompt>" --model <provider/model>');
+      await pretty.dim('  Example: praisonai-ts llm run "Hello!" --model openai/gpt-4o-mini');
+    }
+    process.exit(LLM_EXIT_CODES.INVALID_ARGS);
+    return;
+  }
+  
+  const modelString = options.model || 'openai/gpt-4o-mini';
+
+  try {
+    const { createAISDKBackend } = await import('../../llm/providers/ai-sdk');
+    
+    const backend = createAISDKBackend(modelString, {
+      timeout: options.timeout || 60000,
+    });
+    
+    if (options.stream) {
+      // Streaming mode
+      if (outputFormat === 'json') {
+        // JSON streaming - output each chunk as JSON line
+        const stream = await backend.streamText({
+          messages: [{ role: 'user', content: prompt }],
+        });
+        
+        process.stdout.write('{"type":"stream_start"}\n');
+        
+        let fullText = '';
+        for await (const chunk of stream) {
+          if (chunk.text) {
+            fullText += chunk.text;
+            process.stdout.write(JSON.stringify({ type: 'text', text: chunk.text }) + '\n');
+          }
+          if (chunk.finishReason) {
+            process.stdout.write(JSON.stringify({ 
+              type: 'finish', 
+              finishReason: chunk.finishReason,
+              usage: chunk.usage 
+            }) + '\n');
+          }
+        }
+        
+        process.stdout.write(JSON.stringify({ type: 'stream_end', fullText }) + '\n');
+      } else {
+        // Pretty streaming - output text directly
+        const stream = await backend.streamText({
+          messages: [{ role: 'user', content: prompt }],
+        });
+        
+        for await (const chunk of stream) {
+          if (chunk.text) {
+            process.stdout.write(chunk.text);
+          }
+        }
+        process.stdout.write('\n');
+      }
+    } else {
+      // Non-streaming mode
+      const startTime = Date.now();
+      const result = await backend.generateText({
+        messages: [{ role: 'user', content: prompt }],
+      });
+      const duration = Date.now() - startTime;
+      
+      if (outputFormat === 'json') {
+        outputJson(formatSuccess({
+          model: modelString,
+          text: result.text,
+          usage: result.usage,
+          finishReason: result.finishReason,
+          duration_ms: duration
+        }));
+      } else {
+        await pretty.plain(result.text);
+        
+        if (options.verbose) {
+          await pretty.newline();
+          await pretty.dim(`Model: ${modelString}`);
+          await pretty.dim(`Duration: ${duration}ms`);
+          if (result.usage) {
+            await pretty.dim(`Tokens: ${result.usage.totalTokens} (prompt: ${result.usage.promptTokens}, completion: ${result.usage.completionTokens})`);
+          }
+        }
+      }
+    }
+  } catch (error) {
+    handleError(error, outputFormat, `Failed to run prompt with model '${modelString}'`);
+  }
+}
+
+/**
+ * Handle errors with proper exit codes and formatting
+ */
+/**
+ * List common models for each provider
+ */
+async function modelsCommand(args: string[], options: LLMOptions, outputFormat: string): Promise<void> {
+  try {
+    const { listSupportedProviders, AISDK_PROVIDERS } = await import('../../llm/providers/ai-sdk');
+    
+    // Common models per provider (not exhaustive)
+    const commonModels: Record<string, string[]> = {
+      openai: ['gpt-4o', 'gpt-4o-mini', 'gpt-4-turbo', 'gpt-3.5-turbo', 'o1', 'o1-mini'],
+      anthropic: ['claude-3-5-sonnet-latest', 'claude-3-5-haiku-latest', 'claude-3-opus-latest'],
+      google: ['gemini-2.0-flash', 'gemini-1.5-pro', 'gemini-1.5-flash'],
+      groq: ['llama-3.3-70b-versatile', 'llama-3.1-8b-instant', 'mixtral-8x7b-32768'],
+      mistral: ['mistral-large-latest', 'mistral-small-latest', 'codestral-latest'],
+      cohere: ['command-r-plus', 'command-r', 'command-light'],
+      deepseek: ['deepseek-chat', 'deepseek-coder'],
+      xai: ['grok-2', 'grok-2-mini'],
+    };
+
+    const providers = listSupportedProviders();
+    const modelsData = providers.map((id: string) => ({
+      provider: id,
+      models: commonModels[id] || ['(check provider docs)'],
+      package: AISDK_PROVIDERS[id as keyof typeof AISDK_PROVIDERS]?.package || 'custom'
+    }));
+
+    if (outputFormat === 'json') {
+      outputJson(formatSuccess({
+        note: 'This is not an exhaustive list. Check provider documentation for all available models.',
+        providers: modelsData
+      }));
+    } else {
+      await pretty.heading('Common Models by Provider');
+      await pretty.dim('Note: This is not exhaustive. Check provider docs for all models.\n');
+      
+      for (const p of modelsData) {
+        await pretty.plain(`  ${p.provider}:`);
+        for (const model of p.models) {
+          await pretty.dim(`    - ${model}`);
+        }
+      }
+      
+      await pretty.newline();
+      await pretty.info('Usage: praisonai-ts llm run "prompt" --model provider/model');
+    }
+  } catch (error) {
+    handleError(error, outputFormat, 'Failed to list models');
+  }
+}
+
+/**
+ * Show resolved configuration (redacted)
+ */
+async function configCommand(args: string[], options: LLMOptions, outputFormat: string): Promise<void> {
+  try {
+    const { SAFE_DEFAULTS, AISDK_PROVIDERS, PROVIDER_ALIASES } = await import('../../llm/providers/ai-sdk');
+    
+    // Gather environment config (redacted)
+    const envConfig: Record<string, string> = {};
+    for (const [id, info] of Object.entries(AISDK_PROVIDERS)) {
+      const envKey = (info as any).envKey;
+      if (envKey && process.env[envKey]) {
+        envConfig[envKey] = '****' + process.env[envKey]!.slice(-4);
+      }
+    }
+
+    const config = {
+      defaults: SAFE_DEFAULTS,
+      aliases: PROVIDER_ALIASES,
+      environment: envConfig,
+      model: options.model || 'openai/gpt-4o-mini',
+      timeout: options.timeout || SAFE_DEFAULTS.timeout,
+    };
+
+    if (outputFormat === 'json') {
+      outputJson(formatSuccess(config));
+    } else {
+      await pretty.heading('AI SDK Configuration');
+      
+      await pretty.plain('  Defaults:');
+      await pretty.dim(`    timeout: ${SAFE_DEFAULTS.timeout}ms`);
+      await pretty.dim(`    maxRetries: ${SAFE_DEFAULTS.maxRetries}`);
+      await pretty.dim(`    maxOutputTokens: ${SAFE_DEFAULTS.maxOutputTokens}`);
+      await pretty.dim(`    redactLogs: ${SAFE_DEFAULTS.redactLogs}`);
+      
+      await pretty.newline();
+      await pretty.plain('  Provider Aliases:');
+      for (const [alias, target] of Object.entries(PROVIDER_ALIASES)) {
+        await pretty.dim(`    ${alias} → ${target}`);
+      }
+      
+      await pretty.newline();
+      await pretty.plain('  Environment (redacted):');
+      if (Object.keys(envConfig).length === 0) {
+        await pretty.dim('    No API keys detected');
+      } else {
+        for (const [key, value] of Object.entries(envConfig)) {
+          await pretty.dim(`    ${key}: ${value}`);
+        }
+      }
+    }
+  } catch (error) {
+    handleError(error, outputFormat, 'Failed to show config');
+  }
+}
+
+/**
+ * Demo trace/attribution headers
+ */
+async function traceCommand(args: string[], options: LLMOptions, outputFormat: string): Promise<void> {
+  try {
+    const { createAISDKBackend, createAttributionMiddleware } = await import('../../llm/providers/ai-sdk');
+    
+    const modelString = options.model || 'openai/gpt-4o-mini';
+    
+    // Generate demo attribution context
+    const attribution = {
+      agentId: `agent-${Date.now().toString(36)}`,
+      runId: `run-${Math.random().toString(36).slice(2, 10)}`,
+      traceId: `trace-${Math.random().toString(36).slice(2, 10)}`,
+      sessionId: options.verbose ? `session-demo` : undefined,
+    };
+    
+    if (outputFormat !== 'json') {
+      await pretty.heading('Attribution Trace Demo');
+      await pretty.info(`Running with model: ${modelString}`);
+      await pretty.newline();
+      await pretty.plain('  Attribution Context:');
+      await pretty.dim(`    agentId: ${attribution.agentId}`);
+      await pretty.dim(`    runId: ${attribution.runId}`);
+      await pretty.dim(`    traceId: ${attribution.traceId}`);
+      if (attribution.sessionId) {
+        await pretty.dim(`    sessionId: ${attribution.sessionId}`);
+      }
+      await pretty.newline();
+      await pretty.plain('  Headers injected:');
+      await pretty.dim(`    X-Agent-Id: ${attribution.agentId}`);
+      await pretty.dim(`    X-Run-Id: ${attribution.runId}`);
+      await pretty.dim(`    X-Trace-Id: ${attribution.traceId}`);
+      await pretty.newline();
+    }
+    
+    const backend = createAISDKBackend(modelString, {
+      timeout: options.timeout || 30000,
+      attribution,
+    });
+    
+    const startTime = Date.now();
+    const result = await backend.generateText({
+      messages: [{ role: 'user', content: 'Say "Trace OK" and nothing else.' }],
+      maxTokens: 10,
+    });
+    const duration = Date.now() - startTime;
+    
+    if (outputFormat === 'json') {
+      outputJson(formatSuccess({
+        attribution,
+        headers: {
+          'X-Agent-Id': attribution.agentId,
+          'X-Run-Id': attribution.runId,
+          'X-Trace-Id': attribution.traceId,
+        },
+        response: result.text,
+        duration_ms: duration,
+      }));
+    } else {
+      await pretty.success(`Response: ${result.text.trim()} (${duration}ms)`);
+      await pretty.newline();
+      await pretty.info('Attribution headers are automatically injected into LLM requests.');
+      await pretty.dim('Use --verbose for session ID.');
+    }
+  } catch (error) {
+    handleError(error, outputFormat, 'Failed to run trace demo');
+  }
+}
+
+/**
+ * Demo tool calling - shows how tools work with AI SDK
+ * Note: AI SDK requires Zod schemas for tools, which requires runtime setup
+ */
+async function toolsCommand(args: string[], options: LLMOptions, outputFormat: string): Promise<void> {
+  try {
+    const modelString = options.model || 'openai/gpt-4o-mini';
+    
+    if (outputFormat !== 'json') {
+      await pretty.heading('Tool Calling Demo');
+      await pretty.info(`Model: ${modelString}`);
+      await pretty.newline();
+      await pretty.plain('  AI SDK Tool Calling requires Zod schemas.');
+      await pretty.newline();
+      await pretty.plain('  Example code:');
+      await pretty.dim(`    import { generateText, tool } from 'ai';`);
+      await pretty.dim(`    import { openai } from '@ai-sdk/openai';`);
+      await pretty.dim(`    import { z } from 'zod';`);
+      await pretty.newline();
+      await pretty.dim(`    const tools = {`);
+      await pretty.dim(`      get_weather: tool({`);
+      await pretty.dim(`        description: 'Get weather for a city',`);
+      await pretty.dim(`        inputSchema: z.object({`);
+      await pretty.dim(`          city: z.string().describe('City name'),`);
+      await pretty.dim(`        }),`);
+      await pretty.dim(`      }),`);
+      await pretty.dim(`    };`);
+      await pretty.newline();
+      await pretty.dim(`    const result = await generateText({`);
+      await pretty.dim(`      model: openai('gpt-4o-mini'),`);
+      await pretty.dim(`      messages: [{ role: 'user', content: 'Weather in Paris?' }],`);
+      await pretty.dim(`      tools,`);
+      await pretty.dim(`    });`);
+      await pretty.newline();
+      await pretty.info('See examples/ai-sdk/tool-calling.ts for a complete example.');
+    } else {
+      outputJson(formatSuccess({
+        model: modelString,
+        note: 'AI SDK tool calling requires Zod schemas at runtime',
+        example: {
+          import: "import { generateText, tool } from 'ai'; import { z } from 'zod';",
+          tool: "tool({ description: '...', inputSchema: z.object({ city: z.string() }) })",
+        },
+        docs: 'See examples/ai-sdk/tool-calling.ts',
+      }));
+    }
+  } catch (error) {
+    handleError(error, outputFormat, 'Failed to run tools demo');
+  }
+}
+
+/**
+ * Demo structured output (JSON schema) - shows how to use generateObject
+ * Note: AI SDK requires Zod schemas for structured output
+ */
+async function jsonCommand(args: string[], options: LLMOptions, outputFormat: string): Promise<void> {
+  try {
+    const modelString = options.model || 'openai/gpt-4o-mini';
+    
+    if (outputFormat !== 'json') {
+      await pretty.heading('Structured Output (JSON) Demo');
+      await pretty.info(`Model: ${modelString}`);
+      await pretty.newline();
+      await pretty.plain('  AI SDK Structured Output requires Zod schemas.');
+      await pretty.newline();
+      await pretty.plain('  Example code:');
+      await pretty.dim(`    import { generateObject } from 'ai';`);
+      await pretty.dim(`    import { openai } from '@ai-sdk/openai';`);
+      await pretty.dim(`    import { z } from 'zod';`);
+      await pretty.newline();
+      await pretty.dim(`    const schema = z.object({`);
+      await pretty.dim(`      name: z.string(),`);
+      await pretty.dim(`      age: z.number(),`);
+      await pretty.dim(`      city: z.string(),`);
+      await pretty.dim(`    });`);
+      await pretty.newline();
+      await pretty.dim(`    const result = await generateObject({`);
+      await pretty.dim(`      model: openai('gpt-4o-mini'),`);
+      await pretty.dim(`      schema,`);
+      await pretty.dim(`      prompt: 'Generate a fictional person profile.',`);
+      await pretty.dim(`    });`);
+      await pretty.newline();
+      await pretty.dim(`    console.log(result.object); // { name: '...', age: 25, city: '...' }`);
+      await pretty.newline();
+      await pretty.info('See examples/ai-sdk/structured-output.ts for a complete example.');
+    } else {
+      outputJson(formatSuccess({
+        model: modelString,
+        note: 'AI SDK structured output requires Zod schemas at runtime',
+        example: {
+          import: "import { generateObject } from 'ai'; import { z } from 'zod';",
+          schema: "z.object({ name: z.string(), age: z.number(), city: z.string() })",
+        },
+        docs: 'See examples/ai-sdk/structured-output.ts',
+      }));
+    }
+  } catch (error) {
+    handleError(error, outputFormat, 'Failed to run JSON demo');
+  }
+}
+
+/**
+ * Handle errors with proper exit codes and formatting
+ */
+async function handleError(error: unknown, outputFormat: string, context: string): Promise<never> {
+  const { AISDKError } = await import('../../llm/providers/ai-sdk');
+  
+  let exitCode: number = LLM_EXIT_CODES.GENERAL_ERROR;
+  let errorCode = 'UNKNOWN_ERROR';
+  let message = context;
+  
+  if (error instanceof AISDKError) {
+    message = `${context}: ${error.message}`;
+    errorCode = error.code;
+    
+    switch (error.code) {
+      case 'AUTHENTICATION':
+        exitCode = 3; // AUTH_ERROR
+        break;
+      case 'PROVIDER_NOT_FOUND':
+      case 'MODEL_NOT_FOUND':
+        exitCode = 4; // PROVIDER_NOT_FOUND
+        break;
+      case 'NETWORK':
+        exitCode = 5; // NETWORK_ERROR
+        break;
+      case 'TIMEOUT':
+        exitCode = 6; // TIMEOUT
+        break;
+      case 'INVALID_REQUEST':
+        exitCode = 2; // INVALID_ARGS
+        break;
+    }
+  } else if (error instanceof Error) {
+    message = `${context}: ${error.message}`;
+  }
+  
+  if (outputFormat === 'json') {
+    outputJson(formatError(errorCode, message));
+  } else {
+    await pretty.error(message);
+  }
+  
+  process.exit(exitCode);
+}

src/praisonai-ts/src/cli/spec/cli-spec.ts

@@ -97,6 +97,30 @@ export const COMMANDS: Record<string, Command> = {
     description: 'List available LLM providers',
     flags: []
   },
+  llm: {
+    description: 'AI SDK provider management and testing',
+    subcommands: {
+      providers: { description: 'List available AI SDK providers' },
+      test: { 
+        description: 'Test connectivity to a provider',
+        args: [{ name: 'provider', type: 'string', required: false, position: 0 }]
+      },
+      validate: {
+        description: 'Validate provider configuration',
+        args: [{ name: 'provider', type: 'string', required: false, position: 0 }]
+      },
+      run: {
+        description: 'Run a prompt with a specific model',
+        args: [{ name: 'prompt', type: 'string', required: true, position: 0 }]
+      }
+    },
+    flags: [
+      { name: 'model', short: 'm', type: 'string', description: 'Model to use (provider/model format)' },
+      { name: 'stream', short: 's', type: 'boolean', default: false, description: 'Enable streaming output' },
+      { name: 'timeout', type: 'integer', description: 'Request timeout in milliseconds' },
+      { name: 'provider', short: 'p', type: 'string', description: 'Provider ID' }
+    ]
+  },
   tools: {
     description: 'List or manage tools',
     subcommands: {
@@ -465,6 +489,38 @@ export const COMMANDS: Record<string, Command> = {
     args: [
       { name: 'command', type: 'string', required: false, position: 0 }
     ]
+  },
+  embed: {
+    description: 'Generate embeddings using AI SDK',
+    subcommands: {
+      text: { description: 'Embed text(s)', args: [{ name: 'text', type: 'string', required: true, position: 0 }] },
+      file: { description: 'Embed file contents', args: [{ name: 'path', type: 'string', required: true, position: 0 }] },
+      query: { description: 'Query similar texts', args: [{ name: 'query', type: 'string', required: true, position: 0 }] },
+      models: { description: 'List available embedding models' }
+    },
+    flags: [
+      { name: 'model', short: 'm', type: 'string', description: 'Embedding model to use' },
+      { name: 'provider', type: 'string', description: 'Provider (openai, google, cohere)' },
+      { name: 'backend', type: 'string', description: 'Backend (ai-sdk, native, auto)' },
+      { name: 'save', type: 'string', description: 'Save embeddings to file' },
+      { name: 'file', type: 'string', description: 'Embeddings file for query' }
+    ]
+  },
+  benchmark: {
+    description: 'Run performance benchmarks',
+    subcommands: {
+      run: { description: 'Run all benchmarks' },
+      import: { description: 'Benchmark import time' },
+      memory: { description: 'Benchmark memory usage' },
+      latency: { description: 'Benchmark first-call latency' },
+      streaming: { description: 'Benchmark streaming throughput' },
+      embedding: { description: 'Benchmark embedding throughput' }
+    },
+    flags: [
+      { name: 'iterations', type: 'integer', description: 'Number of iterations' },
+      { name: 'backend', type: 'string', description: 'Backend to test (ai-sdk, native, both)' },
+      { name: 'real', type: 'boolean', description: 'Use real API calls (requires keys)' }
+    ]
   }
 };
 

src/praisonai-ts/src/guardrails/llm-guardrail.ts

@@ -2,7 +2,8 @@
  * LLMGuardrail - LLM-based content validation
  */
 
-import { createProvider, type LLMProvider } from '../llm/providers';
+import { type LLMProvider } from '../llm/providers';
+import { resolveBackend } from '../llm/backend-resolver';
 
 export interface LLMGuardrailConfig {
   name: string;
@@ -25,18 +26,41 @@ export interface LLMGuardrailResult {
 export class LLMGuardrail {
   readonly name: string;
   readonly criteria: string;
-  private provider: LLMProvider;
+  private provider: LLMProvider | null = null;
+  private providerPromise: Promise<LLMProvider> | null = null;
+  private llmModel: string;
   private threshold: number;
   private verbose: boolean;
 
   constructor(config: LLMGuardrailConfig) {
     this.name = config.name;
     this.criteria = config.criteria;
-    this.provider = createProvider(config.llm || 'openai/gpt-4o-mini');
+    this.llmModel = config.llm || 'openai/gpt-4o-mini';
     this.threshold = config.threshold ?? 0.7;
     this.verbose = config.verbose ?? false;
   }
 
+  /**
+   * Get the LLM provider (lazy initialization with AI SDK backend)
+   */
+  private async getProvider(): Promise<LLMProvider> {
+    if (this.provider) {
+      return this.provider;
+    }
+
+    if (!this.providerPromise) {
+      this.providerPromise = (async () => {
+        const result = await resolveBackend(this.llmModel, {
+          attribution: { agentId: `LLMGuardrail:${this.name}` },
+        });
+        this.provider = result.provider;
+        return result.provider;
+      })();
+    }
+
+    return this.providerPromise;
+  }
+
   /**
    * Check content against criteria
    */
@@ -55,7 +79,8 @@ Respond with a JSON object containing:
 JSON response:`;
 
     try {
-      const result = await this.provider.generateText({
+      const provider = await this.getProvider();
+      const result = await provider.generateText({
         messages: [{ role: 'user', content: prompt }]
       });
 

src/praisonai-ts/src/llm/backend-resolver.ts

@@ -0,0 +1,256 @@
+/**
+ * Backend Resolver - Unified LLM backend resolution with AI SDK preference
+ * 
+ * Resolution order:
+ * 1. AI SDK backend (if installed and enabled)
+ * 2. Native provider registry (OpenAI, Anthropic, Google)
+ * 3. Error with actionable guidance
+ * 
+ * Environment variables:
+ * - PRAISONAI_BACKEND: 'ai-sdk' | 'native' | 'auto' (default: 'auto')
+ */
+
+import type { LLMProvider, ProviderConfig } from './providers/types';
+
+export type BackendSource = 'ai-sdk' | 'native' | 'custom' | 'legacy';
+
+export interface BackendResolutionResult {
+  provider: LLMProvider;
+  source: BackendSource;
+  providerId: string;
+  modelId: string;
+  warnings?: string[];
+}
+
+export interface ResolveBackendOptions {
+  /** Force a specific backend: 'ai-sdk' | 'native' | 'auto' (default: 'auto') */
+  backend?: 'ai-sdk' | 'native' | 'auto';
+  /** Provider configuration (API keys, timeouts, etc.) */
+  config?: ProviderConfig;
+  /** Attribution context for multi-agent tracing */
+  attribution?: {
+    agentId?: string;
+    runId?: string;
+    sessionId?: string;
+  };
+}
+
+// Cached availability check
+let _aiSdkAvailable: boolean | null = null;
+let _aiSdkCheckPromise: Promise<boolean> | null = null;
+
+/**
+ * Check if AI SDK is available (installed)
+ * Result is cached after first check
+ */
+export async function isAISDKAvailable(): Promise<boolean> {
+  if (_aiSdkAvailable !== null) {
+    return _aiSdkAvailable;
+  }
+  
+  if (_aiSdkCheckPromise) {
+    return _aiSdkCheckPromise;
+  }
+  
+  _aiSdkCheckPromise = (async () => {
+    try {
+      // Dynamic import to avoid loading if not needed
+      const moduleName = 'ai';
+      await import(moduleName);
+      _aiSdkAvailable = true;
+      return true;
+    } catch {
+      _aiSdkAvailable = false;
+      return false;
+    }
+  })();
+  
+  return _aiSdkCheckPromise;
+}
+
+/**
+ * Reset the AI SDK availability cache (for testing)
+ */
+export function resetAISDKAvailabilityCache(): void {
+  _aiSdkAvailable = null;
+  _aiSdkCheckPromise = null;
+}
+
+/**
+ * Get the preferred backend from environment
+ */
+export function getPreferredBackend(): 'ai-sdk' | 'native' | 'auto' {
+  const env = process.env.PRAISONAI_BACKEND?.toLowerCase();
+  if (env === 'ai-sdk' || env === 'aisdk') return 'ai-sdk';
+  if (env === 'native' || env === 'legacy') return 'native';
+  return 'auto';
+}
+
+/**
+ * Parse model string into provider and model ID
+ */
+export function parseModelString(model: string): { providerId: string; modelId: string } {
+  if (model.includes('/')) {
+    const [providerId, ...rest] = model.split('/');
+    return { providerId: providerId.toLowerCase(), modelId: rest.join('/') };
+  }
+  
+  // Default to OpenAI for common model prefixes
+  if (model.startsWith('gpt-') || model.startsWith('o1') || model.startsWith('o3')) {
+    return { providerId: 'openai', modelId: model };
+  }
+  if (model.startsWith('claude-')) {
+    return { providerId: 'anthropic', modelId: model };
+  }
+  if (model.startsWith('gemini-')) {
+    return { providerId: 'google', modelId: model };
+  }
+  
+  // Default to OpenAI
+  return { providerId: 'openai', modelId: model };
+}
+
+/**
+ * Resolve the best available backend for a model
+ * 
+ * @param modelString - Model string in format "provider/model" or just "model"
+ * @param options - Resolution options
+ * @returns Backend resolution result with provider instance
+ * 
+ * @example
+ * ```typescript
+ * const { provider, source } = await resolveBackend('openai/gpt-4o-mini');
+ * const result = await provider.generateText({ messages: [...] });
+ * ```
+ */
+export async function resolveBackend(
+  modelString: string,
+  options: ResolveBackendOptions = {}
+): Promise<BackendResolutionResult> {
+  const { providerId, modelId } = parseModelString(modelString);
+  const preferredBackend = options.backend || getPreferredBackend();
+  const warnings: string[] = [];
+  
+  // Try AI SDK first if preferred or auto
+  if (preferredBackend === 'ai-sdk' || preferredBackend === 'auto') {
+    const aiSdkAvailable = await isAISDKAvailable();
+    
+    if (aiSdkAvailable) {
+      try {
+        // Lazy import AI SDK backend
+        const { createAISDKBackend } = await import('./providers/ai-sdk');
+        
+        const backend = createAISDKBackend(modelString, {
+          ...options.config,
+          attribution: options.attribution ? {
+            agentId: options.attribution.agentId,
+            runId: options.attribution.runId,
+            sessionId: options.attribution.sessionId,
+          } : undefined,
+        });
+        
+        return {
+          provider: backend,
+          source: 'ai-sdk',
+          providerId,
+          modelId,
+          warnings: warnings.length > 0 ? warnings : undefined,
+        };
+      } catch (error: any) {
+        if (preferredBackend === 'ai-sdk') {
+          // User explicitly requested AI SDK, throw error
+          throw new Error(
+            `AI SDK backend failed for '${modelString}': ${error.message}. ` +
+            `Set PRAISONAI_BACKEND=native to use native providers.`
+          );
+        }
+        // Auto mode: fall through to native
+        warnings.push(`AI SDK failed: ${error.message}, falling back to native provider`);
+      }
+    } else if (preferredBackend === 'ai-sdk') {
+      throw new Error(
+        `AI SDK is not installed but PRAISONAI_BACKEND=ai-sdk is set. ` +
+        `Install with: npm install ai @ai-sdk/openai @ai-sdk/anthropic @ai-sdk/google`
+      );
+    }
+  }
+  
+  // Try native provider registry
+  try {
+    const { createProvider } = await import('./providers');
+    const provider = createProvider(modelString, options.config);
+    
+    return {
+      provider,
+      source: 'native',
+      providerId,
+      modelId,
+      warnings: warnings.length > 0 ? warnings : undefined,
+    };
+  } catch (error: any) {
+    throw new Error(
+      `Cannot resolve backend for '${modelString}'. ` +
+      `Neither AI SDK nor native provider available. ` +
+      `Install AI SDK: npm install ai @ai-sdk/${providerId} ` +
+      `or check your provider configuration. ` +
+      `Original error: ${error.message}`
+    );
+  }
+}
+
+/**
+ * Resolve backend synchronously using cached availability
+ * Only works if isAISDKAvailable() has been called before
+ * Falls back to native if cache is not populated
+ */
+export function resolveBackendSync(
+  modelString: string,
+  options: ResolveBackendOptions = {}
+): BackendResolutionResult {
+  const { providerId, modelId } = parseModelString(modelString);
+  const preferredBackend = options.backend || getPreferredBackend();
+  
+  // If AI SDK availability is cached and available, try it first
+  if (_aiSdkAvailable === true && (preferredBackend === 'ai-sdk' || preferredBackend === 'auto')) {
+    try {
+      // This will throw if AI SDK module is not already loaded
+      const aiSdk = require('./providers/ai-sdk');
+      const backend = aiSdk.createAISDKBackend(modelString, {
+        ...options.config,
+        attribution: options.attribution,
+      });
+      
+      return {
+        provider: backend,
+        source: 'ai-sdk',
+        providerId,
+        modelId,
+      };
+    } catch {
+      // Fall through to native
+    }
+  }
+  
+  // Use native provider
+  const { createProvider } = require('./providers');
+  const provider = createProvider(modelString, options.config);
+  
+  return {
+    provider,
+    source: 'native',
+    providerId,
+    modelId,
+  };
+}
+
+/**
+ * Get default model string
+ */
+export function getDefaultModel(): string {
+  return process.env.OPENAI_MODEL_NAME || 
+         process.env.PRAISONAI_MODEL || 
+         'openai/gpt-4o-mini';
+}
+
+// Re-export types
+export type { LLMProvider, ProviderConfig };

src/praisonai-ts/src/llm/embeddings.ts

@@ -0,0 +1,350 @@
+/**
+ * Embeddings - AI SDK-backed embedding utilities
+ * 
+ * Provides embedding functionality with AI SDK preference and native fallback.
+ * Integrates with existing EmbeddingProvider interface in knowledge/rag.ts and memory/memory.ts
+ */
+
+import type { EmbeddingProvider } from '../knowledge/rag';
+import { isAISDKAvailable, getPreferredBackend } from './backend-resolver';
+
+export interface EmbeddingOptions {
+  /** Model to use for embeddings (default: text-embedding-3-small) */
+  model?: string;
+  /** Provider to use (default: openai) */
+  provider?: string;
+  /** Maximum retries (default: 2) */
+  maxRetries?: number;
+  /** Abort signal for cancellation */
+  abortSignal?: AbortSignal;
+  /** Additional headers */
+  headers?: Record<string, string>;
+  /** Force specific backend: 'ai-sdk' | 'native' | 'auto' */
+  backend?: 'ai-sdk' | 'native' | 'auto';
+}
+
+export interface EmbeddingResult {
+  embedding: number[];
+  usage?: {
+    tokens: number;
+  };
+}
+
+export interface EmbeddingBatchResult {
+  embeddings: number[][];
+  usage?: {
+    tokens: number;
+  };
+}
+
+// Default embedding models per provider
+const DEFAULT_EMBEDDING_MODELS: Record<string, string> = {
+  openai: 'text-embedding-3-small',
+  anthropic: 'voyage-3', // Anthropic uses Voyage for embeddings
+  google: 'text-embedding-004',
+  cohere: 'embed-english-v3.0',
+};
+
+/**
+ * Get the default embedding model for a provider
+ */
+export function getDefaultEmbeddingModel(provider: string = 'openai'): string {
+  return DEFAULT_EMBEDDING_MODELS[provider.toLowerCase()] || DEFAULT_EMBEDDING_MODELS.openai;
+}
+
+/**
+ * Parse embedding model string into provider and model
+ */
+export function parseEmbeddingModel(model: string): { provider: string; model: string } {
+  if (model.includes('/')) {
+    const [provider, ...rest] = model.split('/');
+    return { provider: provider.toLowerCase(), model: rest.join('/') };
+  }
+  
+  // Infer provider from model name
+  if (model.startsWith('text-embedding-') || model.startsWith('ada')) {
+    return { provider: 'openai', model };
+  }
+  if (model.startsWith('voyage-')) {
+    return { provider: 'anthropic', model };
+  }
+  if (model.startsWith('embed-')) {
+    return { provider: 'cohere', model };
+  }
+  
+  // Default to OpenAI
+  return { provider: 'openai', model };
+}
+
+/**
+ * Embed a single text using AI SDK (preferred) or native provider
+ */
+export async function embed(
+  text: string,
+  options: EmbeddingOptions = {}
+): Promise<EmbeddingResult> {
+  const modelString = options.model || getDefaultEmbeddingModel(options.provider);
+  const { provider } = parseEmbeddingModel(modelString);
+  const preferredBackend = options.backend || getPreferredBackend();
+  
+  // Try AI SDK first
+  if (preferredBackend === 'ai-sdk' || preferredBackend === 'auto') {
+    const aiSdkAvailable = await isAISDKAvailable();
+    
+    if (aiSdkAvailable) {
+      try {
+        return await embedWithAISDK(text, modelString, options);
+      } catch (error: any) {
+        if (preferredBackend === 'ai-sdk') {
+          throw error;
+        }
+        // Fall through to native
+      }
+    }
+  }
+  
+  // Fall back to native OpenAI
+  return await embedWithNative(text, modelString, options);
+}
+
+/**
+ * Embed multiple texts using AI SDK (preferred) or native provider
+ */
+export async function embedMany(
+  texts: string[],
+  options: EmbeddingOptions = {}
+): Promise<EmbeddingBatchResult> {
+  if (texts.length === 0) {
+    return { embeddings: [] };
+  }
+  
+  const modelString = options.model || getDefaultEmbeddingModel(options.provider);
+  const preferredBackend = options.backend || getPreferredBackend();
+  
+  // Try AI SDK first
+  if (preferredBackend === 'ai-sdk' || preferredBackend === 'auto') {
+    const aiSdkAvailable = await isAISDKAvailable();
+    
+    if (aiSdkAvailable) {
+      try {
+        return await embedManyWithAISDK(texts, modelString, options);
+      } catch (error: any) {
+        if (preferredBackend === 'ai-sdk') {
+          throw error;
+        }
+        // Fall through to native
+      }
+    }
+  }
+  
+  // Fall back to native OpenAI
+  return await embedManyWithNative(texts, modelString, options);
+}
+
+/**
+ * Embed using AI SDK
+ */
+async function embedWithAISDK(
+  text: string,
+  model: string,
+  options: EmbeddingOptions
+): Promise<EmbeddingResult> {
+  const { provider, model: modelId } = parseEmbeddingModel(model);
+  
+  // Dynamic import AI SDK
+  const ai = await import('ai');
+  
+  // Get the embedding model from the appropriate provider
+  const embeddingModel = await getAISDKEmbeddingModel(provider, modelId);
+  
+  const result = await ai.embed({
+    model: embeddingModel,
+    value: text,
+    maxRetries: options.maxRetries ?? 2,
+    abortSignal: options.abortSignal,
+    headers: options.headers,
+  });
+  
+  return {
+    embedding: result.embedding,
+    usage: result.usage ? { tokens: result.usage.tokens } : undefined,
+  };
+}
+
+/**
+ * Embed many using AI SDK
+ */
+async function embedManyWithAISDK(
+  texts: string[],
+  model: string,
+  options: EmbeddingOptions
+): Promise<EmbeddingBatchResult> {
+  const { provider, model: modelId } = parseEmbeddingModel(model);
+  
+  // Dynamic import AI SDK
+  const ai = await import('ai');
+  
+  // Get the embedding model from the appropriate provider
+  const embeddingModel = await getAISDKEmbeddingModel(provider, modelId);
+  
+  const result = await ai.embedMany({
+    model: embeddingModel,
+    values: texts,
+    maxRetries: options.maxRetries ?? 2,
+    abortSignal: options.abortSignal,
+    headers: options.headers,
+  });
+  
+  return {
+    embeddings: result.embeddings,
+    usage: result.usage ? { tokens: result.usage.tokens } : undefined,
+  };
+}
+
+/**
+ * Get AI SDK embedding model for a provider
+ */
+async function getAISDKEmbeddingModel(provider: string, modelId: string): Promise<any> {
+  switch (provider.toLowerCase()) {
+    case 'openai':
+    case 'oai': {
+      const { createOpenAI } = await import('@ai-sdk/openai');
+      const openai = createOpenAI({});
+      return openai.embedding(modelId);
+    }
+    case 'google':
+    case 'gemini': {
+      const { createGoogleGenerativeAI } = await import('@ai-sdk/google');
+      const google = createGoogleGenerativeAI({});
+      return google.textEmbeddingModel(modelId);
+    }
+    case 'cohere': {
+      try {
+        // Dynamic import - cohere is optional
+        const cohereModule = await import('@ai-sdk/cohere' as string);
+        const cohere = cohereModule.createCohere({});
+        return cohere.embedding(modelId);
+      } catch {
+        throw new Error(`Cohere provider not installed. Install with: npm install @ai-sdk/cohere`);
+      }
+    }
+    default:
+      throw new Error(
+        `Embedding provider '${provider}' not supported via AI SDK. ` +
+        `Supported: openai, google, cohere`
+      );
+  }
+}
+
+/**
+ * Embed using native OpenAI client
+ */
+async function embedWithNative(
+  text: string,
+  model: string,
+  options: EmbeddingOptions
+): Promise<EmbeddingResult> {
+  const { model: modelId } = parseEmbeddingModel(model);
+  
+  const OpenAI = (await import('openai')).default;
+  const client = new OpenAI();
+  
+  const response = await client.embeddings.create({
+    model: modelId,
+    input: text,
+  });
+  
+  return {
+    embedding: response.data[0].embedding,
+    usage: response.usage ? { tokens: response.usage.total_tokens } : undefined,
+  };
+}
+
+/**
+ * Embed many using native OpenAI client
+ */
+async function embedManyWithNative(
+  texts: string[],
+  model: string,
+  options: EmbeddingOptions
+): Promise<EmbeddingBatchResult> {
+  const { model: modelId } = parseEmbeddingModel(model);
+  
+  const OpenAI = (await import('openai')).default;
+  const client = new OpenAI();
+  
+  const response = await client.embeddings.create({
+    model: modelId,
+    input: texts,
+  });
+  
+  // Sort by index to ensure correct order
+  const sorted = response.data.sort((a, b) => a.index - b.index);
+  
+  return {
+    embeddings: sorted.map(d => d.embedding),
+    usage: response.usage ? { tokens: response.usage.total_tokens } : undefined,
+  };
+}
+
+/**
+ * Create an EmbeddingProvider that uses AI SDK
+ * Compatible with KnowledgeBase and Memory interfaces
+ */
+export function createEmbeddingProvider(options: EmbeddingOptions = {}): EmbeddingProvider {
+  return {
+    async embed(text: string): Promise<number[]> {
+      const result = await embed(text, options);
+      return result.embedding;
+    },
+    async embedBatch(texts: string[]): Promise<number[][]> {
+      const result = await embedMany(texts, options);
+      return result.embeddings;
+    },
+  };
+}
+
+/**
+ * Cosine similarity between two vectors
+ */
+export function cosineSimilarity(a: number[], b: number[]): number {
+  if (a.length !== b.length) {
+    throw new Error('Vectors must have the same length');
+  }
+  
+  let dotProduct = 0;
+  let normA = 0;
+  let normB = 0;
+  
+  for (let i = 0; i < a.length; i++) {
+    dotProduct += a[i] * b[i];
+    normA += a[i] * a[i];
+    normB += b[i] * b[i];
+  }
+  
+  if (normA === 0 || normB === 0) {
+    return 0;
+  }
+  
+  return dotProduct / (Math.sqrt(normA) * Math.sqrt(normB));
+}
+
+/**
+ * Euclidean distance between two vectors
+ */
+export function euclideanDistance(a: number[], b: number[]): number {
+  if (a.length !== b.length) {
+    throw new Error('Vectors must have the same length');
+  }
+  
+  let sum = 0;
+  for (let i = 0; i < a.length; i++) {
+    const diff = a[i] - b[i];
+    sum += diff * diff;
+  }
+  
+  return Math.sqrt(sum);
+}
+
+// Re-export types
+export type { EmbeddingProvider };

src/praisonai-ts/src/llm/index.ts

@@ -37,3 +37,31 @@ export class BaseLLM implements LLM {
     throw new Error('Method not implemented.');
   }
 }
+
+// Export backend resolver
+export {
+  resolveBackend,
+  resolveBackendSync,
+  isAISDKAvailable,
+  resetAISDKAvailabilityCache,
+  getPreferredBackend,
+  getDefaultModel,
+  parseModelString,
+  type BackendResolutionResult,
+  type BackendSource,
+  type ResolveBackendOptions,
+} from './backend-resolver';
+
+// Export embeddings
+export {
+  embed,
+  embedMany,
+  createEmbeddingProvider,
+  getDefaultEmbeddingModel,
+  parseEmbeddingModel,
+  cosineSimilarity,
+  euclideanDistance,
+  type EmbeddingOptions,
+  type EmbeddingResult,
+  type EmbeddingBatchResult,
+} from './embeddings';

src/praisonai-ts/src/llm/providers/ai-sdk/adapter.ts

@@ -0,0 +1,457 @@
+/**
+ * AI SDK Adapter
+ * 
+ * Converts between praisonai-ts message/tool formats and AI SDK formats.
+ * Handles prompt construction, tool definitions, and result parsing.
+ */
+
+import type { Message, ToolDefinition, ToolCall, GenerateTextResult, TokenUsage as PraisonTokenUsage } from '../types';
+import type { 
+  AISDKToolDefinition, 
+  AISDKToolCall, 
+  AISDKToolResult,
+  TokenUsage,
+  FinishReason,
+  PraisonStreamChunk
+} from './types';
+
+/**
+ * AI SDK prompt message types (simplified for compatibility)
+ */
+export interface AISDKSystemMessage {
+  role: 'system';
+  content: string;
+}
+
+export interface AISDKUserMessage {
+  role: 'user';
+  content: Array<{ type: 'text'; text: string }>;
+}
+
+export interface AISDKAssistantMessage {
+  role: 'assistant';
+  content: Array<
+    | { type: 'text'; text: string }
+    | { type: 'tool-call'; toolCallId: string; toolName: string; args: unknown }
+  >;
+}
+
+export interface AISDKToolMessage {
+  role: 'tool';
+  content: Array<{
+    type: 'tool-result';
+    toolCallId: string;
+    toolName: string;
+    result: unknown;
+  }>;
+}
+
+export type AISDKMessage = 
+  | AISDKSystemMessage 
+  | AISDKUserMessage 
+  | AISDKAssistantMessage 
+  | AISDKToolMessage;
+
+/**
+ * Convert praisonai-ts messages to AI SDK prompt format
+ */
+export function toAISDKPrompt(messages: Message[]): AISDKMessage[] {
+  return messages.map(msg => {
+    switch (msg.role) {
+      case 'system':
+        return {
+          role: 'system' as const,
+          content: msg.content || ''
+        };
+        
+      case 'user':
+        return {
+          role: 'user' as const,
+          content: [{ type: 'text' as const, text: msg.content || '' }]
+        };
+        
+      case 'assistant':
+        if (msg.tool_calls && msg.tool_calls.length > 0) {
+          return {
+            role: 'assistant' as const,
+            content: msg.tool_calls.map(tc => ({
+              type: 'tool-call' as const,
+              toolCallId: tc.id,
+              toolName: tc.function.name,
+              args: safeParseJSON(tc.function.arguments)
+            }))
+          };
+        }
+        return {
+          role: 'assistant' as const,
+          content: [{ type: 'text' as const, text: msg.content || '' }]
+        };
+        
+      case 'tool':
+        return {
+          role: 'tool' as const,
+          content: [{
+            type: 'tool-result' as const,
+            toolCallId: msg.tool_call_id || '',
+            toolName: msg.name || '',
+            result: safeParseJSON(msg.content || '')
+          }]
+        };
+        
+      default:
+        // Fallback to user message for unknown roles
+        return {
+          role: 'user' as const,
+          content: [{ type: 'text' as const, text: msg.content || '' }]
+        };
+    }
+  });
+}
+
+/**
+ * Convert praisonai-ts tool definitions to AI SDK format
+ * AI SDK expects tools created with the tool() helper from @ai-sdk/provider-utils
+ */
+export async function toAISDKTools(tools: ToolDefinition[]): Promise<Record<string, any>> {
+  const result: Record<string, any> = {};
+  
+  // Import the tool helper from @ai-sdk/provider-utils
+  let toolHelper: any;
+  let jsonSchemaHelper: any;
+  try {
+    const providerUtils = await import('@ai-sdk/provider-utils');
+    toolHelper = providerUtils.tool;
+    jsonSchemaHelper = providerUtils.jsonSchema;
+  } catch {
+    toolHelper = null;
+    jsonSchemaHelper = null;
+  }
+  
+  for (const toolDef of tools) {
+    // Build a proper JSON Schema for the tool parameters
+    const params = toolDef.parameters || {};
+    const schema = {
+      type: 'object' as const,
+      properties: params.properties || {},
+      required: params.required || [],
+      ...(params.additionalProperties !== undefined 
+        ? { additionalProperties: params.additionalProperties } 
+        : {}),
+    };
+    
+    if (toolHelper && jsonSchemaHelper) {
+      // Use AI SDK's tool() helper for proper tool creation
+      result[toolDef.name] = toolHelper({
+        description: toolDef.description || '',
+        parameters: jsonSchemaHelper(schema),
+      });
+    } else {
+      // Fallback format - create tool-like object manually
+      result[toolDef.name] = {
+        description: toolDef.description || '',
+        parameters: schema,
+      };
+    }
+  }
+  
+  return result;
+}
+
+/**
+ * Convert AI SDK tool call to praisonai-ts format
+ */
+export function fromAISDKToolCall(toolCall: AISDKToolCall): ToolCall {
+  return {
+    id: toolCall.toolCallId,
+    type: 'function',
+    function: {
+      name: toolCall.toolName,
+      arguments: typeof toolCall.args === 'string' 
+        ? toolCall.args 
+        : JSON.stringify(toolCall.args)
+    }
+  };
+}
+
+/**
+ * Convert praisonai-ts tool result to AI SDK format
+ */
+export function toAISDKToolResult(
+  toolCallId: string,
+  toolName: string,
+  result: unknown
+): AISDKToolResult {
+  return {
+    toolCallId,
+    toolName,
+    result
+  };
+}
+
+/**
+ * Extract text content from AI SDK response content
+ */
+export function extractTextFromContent(content: unknown[]): string {
+  if (!Array.isArray(content)) {
+    return '';
+  }
+  
+  return content
+    .filter((part): part is { type: 'text'; text: string } => 
+      typeof part === 'object' && 
+      part !== null && 
+      'type' in part && 
+      part.type === 'text' &&
+      'text' in part
+    )
+    .map(part => part.text)
+    .join('');
+}
+
+/**
+ * Extract tool calls from AI SDK response content
+ */
+export function extractToolCallsFromContent(content: unknown[]): ToolCall[] {
+  if (!Array.isArray(content)) {
+    return [];
+  }
+  
+  return content
+    .filter((part): part is { type: 'tool-call'; toolCallId: string; toolName: string; args: unknown } =>
+      typeof part === 'object' &&
+      part !== null &&
+      'type' in part &&
+      part.type === 'tool-call'
+    )
+    .map(part => fromAISDKToolCall({
+      toolCallId: part.toolCallId,
+      toolName: part.toolName,
+      args: part.args
+    }));
+}
+
+/**
+ * Convert AI SDK generate result to praisonai-ts format
+ */
+export function fromAISDKResult(result: {
+  text?: string;
+  content?: unknown[];
+  toolCalls?: AISDKToolCall[];
+  usage?: { promptTokens: number; completionTokens: number };
+  finishReason?: string;
+}): GenerateTextResult {
+  // Extract text from content or use text directly
+  let text = result.text || '';
+  if (!text && result.content) {
+    text = extractTextFromContent(result.content);
+  }
+  
+  // Extract tool calls
+  let toolCalls: ToolCall[] = [];
+  if (result.toolCalls && result.toolCalls.length > 0) {
+    toolCalls = result.toolCalls.map(fromAISDKToolCall);
+  } else if (result.content) {
+    toolCalls = extractToolCallsFromContent(result.content);
+  }
+  
+  // Map usage - provide defaults if not available
+  const usage: PraisonTokenUsage = result.usage ? {
+    promptTokens: result.usage.promptTokens,
+    completionTokens: result.usage.completionTokens,
+    totalTokens: result.usage.promptTokens + result.usage.completionTokens
+  } : {
+    promptTokens: 0,
+    completionTokens: 0,
+    totalTokens: 0
+  };
+  
+  // Map finish reason to praisonai-ts format
+  const finishReason = mapFinishReasonToProvider(result.finishReason);
+  
+  return {
+    text,
+    toolCalls: toolCalls.length > 0 ? toolCalls : undefined,
+    usage,
+    finishReason,
+    raw: result
+  };
+}
+
+/**
+ * Map AI SDK finish reason to internal format
+ */
+export function mapFinishReason(reason?: string): FinishReason {
+  if (!reason) return 'unknown';
+  
+  switch (reason.toLowerCase()) {
+    case 'stop':
+    case 'end_turn':
+    case 'end':
+      return 'stop';
+    case 'length':
+    case 'max_tokens':
+      return 'length';
+    case 'tool_calls':
+    case 'tool-calls':
+    case 'function_call':
+      return 'tool-calls';
+    case 'content_filter':
+    case 'content-filter':
+      return 'content-filter';
+    case 'error':
+      return 'error';
+    case 'cancelled':
+    case 'canceled':
+      return 'cancelled';
+    default:
+      return 'unknown';
+  }
+}
+
+/**
+ * Map AI SDK finish reason to praisonai-ts provider format
+ * Uses underscore format for tool_calls as expected by GenerateTextResult
+ */
+export function mapFinishReasonToProvider(reason?: string): 'stop' | 'length' | 'tool_calls' | 'content_filter' | 'error' {
+  if (!reason) return 'stop';
+  
+  switch (reason.toLowerCase()) {
+    case 'stop':
+    case 'end_turn':
+    case 'end':
+      return 'stop';
+    case 'length':
+    case 'max_tokens':
+      return 'length';
+    case 'tool_calls':
+    case 'tool-calls':
+    case 'function_call':
+      return 'tool_calls';
+    case 'content_filter':
+    case 'content-filter':
+      return 'content_filter';
+    case 'error':
+    case 'cancelled':
+    case 'canceled':
+    default:
+      return 'error';
+  }
+}
+
+/**
+ * Convert AI SDK stream chunk to praisonai-ts format
+ */
+export function fromAISDKStreamChunk(chunk: {
+  type: string;
+  textDelta?: string;
+  toolCallId?: string;
+  toolName?: string;
+  argsTextDelta?: string;
+  args?: unknown;
+  finishReason?: string;
+  usage?: { promptTokens: number; completionTokens: number };
+}): PraisonStreamChunk | null {
+  switch (chunk.type) {
+    case 'text-delta':
+      if (chunk.textDelta) {
+        return { type: 'text', text: chunk.textDelta };
+      }
+      return null;
+      
+    case 'tool-call':
+      if (chunk.toolCallId && chunk.toolName) {
+        return {
+          type: 'tool-call-end',
+          toolCallId: chunk.toolCallId,
+          args: chunk.args
+        };
+      }
+      return null;
+      
+    case 'tool-call-streaming-start':
+      if (chunk.toolCallId && chunk.toolName) {
+        return {
+          type: 'tool-call-start',
+          toolCallId: chunk.toolCallId,
+          toolName: chunk.toolName
+        };
+      }
+      return null;
+      
+    case 'tool-call-delta':
+      if (chunk.toolCallId && chunk.argsTextDelta) {
+        return {
+          type: 'tool-call-delta',
+          toolCallId: chunk.toolCallId,
+          argsTextDelta: chunk.argsTextDelta
+        };
+      }
+      return null;
+      
+    case 'finish':
+    case 'step-finish':
+      return {
+        type: 'finish',
+        finishReason: mapFinishReason(chunk.finishReason),
+        usage: chunk.usage ? {
+          promptTokens: chunk.usage.promptTokens,
+          completionTokens: chunk.usage.completionTokens,
+          totalTokens: chunk.usage.promptTokens + chunk.usage.completionTokens
+        } : undefined
+      };
+      
+    default:
+      return null;
+  }
+}
+
+/**
+ * Map praisonai-ts tool choice to AI SDK format
+ */
+export function toAISDKToolChoice(
+  toolChoice?: 'auto' | 'none' | 'required' | { type: 'tool'; toolName: string }
+): 'auto' | 'none' | 'required' | { type: 'tool'; toolName: string } | undefined {
+  if (!toolChoice) return undefined;
+  
+  if (typeof toolChoice === 'string') {
+    return toolChoice;
+  }
+  
+  return toolChoice;
+}
+
+/**
+ * Safely parse JSON, returning the original string if parsing fails
+ */
+function safeParseJSON(str: string): unknown {
+  if (typeof str !== 'string') {
+    return str;
+  }
+  
+  try {
+    return JSON.parse(str);
+  } catch {
+    return str;
+  }
+}
+
+/**
+ * Create a simple prompt from a string
+ */
+export function createSimplePrompt(prompt: string, systemPrompt?: string): AISDKMessage[] {
+  const messages: AISDKMessage[] = [];
+  
+  if (systemPrompt) {
+    messages.push({
+      role: 'system',
+      content: systemPrompt
+    });
+  }
+  
+  messages.push({
+    role: 'user',
+    content: [{ type: 'text', text: prompt }]
+  });
+  
+  return messages;
+}

src/praisonai-ts/src/llm/providers/ai-sdk/backend.ts

@@ -0,0 +1,549 @@
+/**
+ * AI SDK Backend
+ * 
+ * Main implementation of the AI SDK backend for praisonai-ts.
+ * Provides generateText, streamText, and generateObject methods
+ * with retry logic, timeouts, and attribution support.
+ */
+
+import type { 
+  LLMProvider, 
+  GenerateTextOptions, 
+  GenerateTextResult,
+  StreamTextOptions,
+  StreamChunk,
+  GenerateObjectOptions,
+  GenerateObjectResult,
+  Message,
+  ToolDefinition
+} from '../types';
+
+import type {
+  AISDKBackendConfig,
+  AttributionContext,
+  AISDKProviderOptions,
+  PraisonStreamChunk,
+  TokenUsage
+} from './types';
+
+import { AISDKError, SAFE_DEFAULTS } from './types';
+import { parseModelString, createAISDKProvider, validateProviderApiKey, getMissingApiKeyMessage } from './provider-map';
+import { toAISDKPrompt, toAISDKTools, fromAISDKResult, fromAISDKStreamChunk, toAISDKToolChoice, mapFinishReasonToProvider } from './adapter';
+import { createStandardMiddleware, createAttributionMiddleware, composeMiddleware, type AISDKMiddleware } from './middleware';
+
+/**
+ * Lazy-loaded AI SDK modules
+ * These are only imported when actually used to avoid startup cost
+ * 
+ * Note: We use 'any' type here because the 'ai' package is an optional
+ * peer dependency. The actual types are checked at runtime.
+ */
+let _aiModule: any = null;
+
+async function getAIModule(): Promise<any> {
+  if (!_aiModule) {
+    try {
+      // Dynamic import - 'ai' is an optional peer dependency
+      // Use variable to prevent TypeScript from resolving the module at compile time
+      const moduleName = 'ai';
+      _aiModule = await import(moduleName);
+    } catch (error) {
+      throw new AISDKError(
+        'AI SDK is not installed. Install it with: npm install ai',
+        'MISSING_DEPENDENCY',
+        false,
+        error
+      );
+    }
+  }
+  return _aiModule;
+}
+
+/**
+ * AI SDK Backend - implements LLMProvider interface
+ */
+export class AISDKBackend implements LLMProvider {
+  public readonly providerId: string;
+  public readonly modelId: string;
+  
+  private readonly config: AISDKBackendConfig;
+  private readonly attribution?: AttributionContext;
+  private provider: unknown | null = null;
+  private model: unknown | null = null;
+  
+  constructor(
+    modelString: string,
+    config: AISDKBackendConfig = {}
+  ) {
+    const parsed = parseModelString(modelString, config.defaultProvider);
+    this.providerId = parsed.providerId;
+    this.modelId = parsed.modelId;
+    
+    // Merge with safe defaults
+    this.config = {
+      ...SAFE_DEFAULTS,
+      ...config
+    };
+    
+    this.attribution = config.attribution;
+  }
+  
+  /**
+   * Initialize the AI SDK provider and model (lazy)
+   */
+  private async ensureInitialized(): Promise<void> {
+    if (this.model) {
+      return;
+    }
+    
+    // Validate API key
+    if (!validateProviderApiKey(this.providerId)) {
+      throw new AISDKError(
+        getMissingApiKeyMessage(this.providerId),
+        'AUTHENTICATION',
+        false
+      );
+    }
+    
+    // Get provider options from config
+    const providerOptions: AISDKProviderOptions = 
+      this.config.providers?.[this.providerId] || {};
+    
+    // Create the AI SDK provider
+    this.provider = await createAISDKProvider(this.providerId, providerOptions);
+    
+    // Get the language model from the provider
+    if (typeof this.provider === 'function') {
+      // Provider is callable (e.g., openai('gpt-4o'))
+      this.model = (this.provider as Function)(this.modelId);
+    } else if (this.provider && typeof (this.provider as any).languageModel === 'function') {
+      // Provider has languageModel method
+      this.model = (this.provider as any).languageModel(this.modelId);
+    } else if (this.provider && typeof (this.provider as any).chat === 'function') {
+      // Provider has chat method (OpenAI style)
+      this.model = (this.provider as any).chat(this.modelId);
+    } else {
+      throw new AISDKError(
+        `Could not get language model from provider '${this.providerId}'`,
+        'PROVIDER_ERROR',
+        false
+      );
+    }
+  }
+  
+  /**
+   * Generate text (non-streaming)
+   */
+  async generateText(options: GenerateTextOptions): Promise<GenerateTextResult> {
+    await this.ensureInitialized();
+    
+    const ai = await getAIModule();
+    
+    // Convert messages to AI SDK format
+    const prompt = toAISDKPrompt(options.messages);
+    
+    // Convert tools if provided (now async)
+    const tools = options.tools ? await toAISDKTools(options.tools) : undefined;
+    
+    // Build call options
+    const callOptions: Record<string, unknown> = {
+      model: this.model,
+      messages: prompt,
+      maxTokens: options.maxTokens || this.config.maxOutputTokens,
+      temperature: options.temperature,
+      topP: options.topP,
+      frequencyPenalty: options.frequencyPenalty,
+      presencePenalty: options.presencePenalty,
+      stopSequences: options.stop,
+      maxRetries: this.config.maxRetries,
+    };
+    
+    if (tools && Object.keys(tools).length > 0) {
+      callOptions.tools = tools;
+      callOptions.toolChoice = toAISDKToolChoice(options.toolChoice as any);
+    }
+    
+    // Add telemetry settings if configured
+    if (this.config.telemetry) {
+      callOptions.experimental_telemetry = this.config.telemetry;
+    }
+    
+    // Execute with retry logic
+    let lastError: unknown;
+    const maxRetries = this.config.maxRetries || SAFE_DEFAULTS.maxRetries;
+    
+    for (let attempt = 0; attempt <= maxRetries; attempt++) {
+      try {
+        // Create abort controller for timeout
+        const controller = new AbortController();
+        const timeoutId = setTimeout(() => {
+          controller.abort();
+        }, this.config.timeout || SAFE_DEFAULTS.timeout);
+        
+        try {
+          callOptions.abortSignal = controller.signal;
+          
+          const result = await ai.generateText(callOptions as any);
+          
+          clearTimeout(timeoutId);
+          
+          return fromAISDKResult({
+            text: result.text,
+            toolCalls: result.toolCalls?.map((tc: any) => ({
+              toolCallId: tc.toolCallId,
+              toolName: tc.toolName,
+              args: tc.args
+            })),
+            usage: result.usage,
+            finishReason: result.finishReason
+          });
+        } finally {
+          clearTimeout(timeoutId);
+        }
+      } catch (error) {
+        lastError = error;
+        
+        const classifiedError = classifyError(error);
+        
+        // Don't retry non-retryable errors
+        if (!classifiedError.isRetryable || attempt === maxRetries) {
+          throw classifiedError;
+        }
+        
+        // Exponential backoff
+        const delay = Math.min(1000 * Math.pow(2, attempt), 10000);
+        await sleep(delay);
+      }
+    }
+    
+    throw classifyError(lastError);
+  }
+  
+  /**
+   * Stream text generation
+   */
+  async streamText(options: StreamTextOptions): Promise<AsyncIterable<StreamChunk>> {
+    await this.ensureInitialized();
+    
+    const ai = await getAIModule();
+    
+    // Convert messages to AI SDK format
+    const prompt = toAISDKPrompt(options.messages);
+    
+    // Convert tools if provided (now async)
+    const tools = options.tools ? await toAISDKTools(options.tools) : undefined;
+    
+    // Build call options
+    const callOptions: Record<string, unknown> = {
+      model: this.model,
+      messages: prompt,
+      maxTokens: options.maxTokens || this.config.maxOutputTokens,
+      temperature: options.temperature,
+      topP: options.topP,
+      frequencyPenalty: options.frequencyPenalty,
+      presencePenalty: options.presencePenalty,
+      stopSequences: options.stop,
+    };
+    
+    if (tools && Object.keys(tools).length > 0) {
+      callOptions.tools = tools;
+      callOptions.toolChoice = toAISDKToolChoice(options.toolChoice as any);
+    }
+    
+    // Add telemetry settings if configured
+    if (this.config.telemetry) {
+      callOptions.experimental_telemetry = this.config.telemetry;
+    }
+    
+    // Create abort controller for timeout
+    const controller = new AbortController();
+    const timeoutId = setTimeout(() => {
+      controller.abort();
+    }, this.config.timeout || SAFE_DEFAULTS.timeout);
+    
+    callOptions.abortSignal = controller.signal;
+    
+    const self = this;
+    const onToken = options.onToken;
+    const onToolCall = options.onToolCall;
+    
+    // Return async iterable
+    return {
+      async *[Symbol.asyncIterator](): AsyncGenerator<StreamChunk, void, unknown> {
+        try {
+          const result = await ai.streamText(callOptions as any);
+          
+          let accumulatedText = '';
+          const toolCalls: Map<string, { id: string; name: string; args: string }> = new Map();
+          
+          for await (const chunk of result.textStream) {
+            // AI SDK streamText returns text chunks directly
+            if (typeof chunk === 'string') {
+              accumulatedText += chunk;
+              
+              if (onToken) {
+                onToken(chunk);
+              }
+              
+              yield {
+                text: chunk
+              };
+            }
+          }
+          
+          // Get final result for usage and tool calls
+          const finalResult = await result;
+          
+          // Yield tool calls if any
+          if (finalResult.toolCalls && finalResult.toolCalls.length > 0) {
+            for (const tc of finalResult.toolCalls) {
+              const toolCall = {
+                id: tc.toolCallId,
+                type: 'function' as const,
+                function: {
+                  name: tc.toolName,
+                  arguments: typeof tc.args === 'string' ? tc.args : JSON.stringify(tc.args)
+                }
+              };
+              
+              if (onToolCall) {
+                onToolCall(toolCall);
+              }
+              
+              yield {
+                toolCalls: [toolCall]
+              };
+            }
+          }
+          
+          // Yield final chunk with usage
+          yield {
+            usage: finalResult.usage ? {
+              promptTokens: finalResult.usage.promptTokens,
+              completionTokens: finalResult.usage.completionTokens,
+              totalTokens: finalResult.usage.promptTokens + finalResult.usage.completionTokens
+            } : undefined,
+            finishReason: finalResult.finishReason
+          };
+          
+        } catch (error) {
+          throw classifyError(error);
+        } finally {
+          clearTimeout(timeoutId);
+        }
+      }
+    };
+  }
+  
+  /**
+   * Generate structured object output
+   */
+  async generateObject<T = unknown>(options: GenerateObjectOptions<T>): Promise<GenerateObjectResult<T>> {
+    await this.ensureInitialized();
+    
+    const ai = await getAIModule();
+    
+    // Convert messages to AI SDK format
+    const prompt = toAISDKPrompt(options.messages);
+    
+    // Build call options
+    const callOptions: Record<string, unknown> = {
+      model: this.model,
+      messages: prompt,
+      schema: options.schema,
+      maxTokens: options.maxTokens || this.config.maxOutputTokens,
+      temperature: options.temperature,
+      maxRetries: options.maxRetries || this.config.maxRetries,
+    };
+    
+    // Add telemetry settings if configured
+    if (this.config.telemetry) {
+      callOptions.experimental_telemetry = this.config.telemetry;
+    }
+    
+    // Create abort controller for timeout
+    const controller = new AbortController();
+    const timeoutId = setTimeout(() => {
+      controller.abort();
+    }, this.config.timeout || SAFE_DEFAULTS.timeout);
+    
+    try {
+      callOptions.abortSignal = controller.signal;
+      
+      const result = await ai.generateObject(callOptions as any);
+      
+      return {
+        object: result.object as T,
+        usage: result.usage ? {
+          promptTokens: result.usage.promptTokens,
+          completionTokens: result.usage.completionTokens,
+          totalTokens: result.usage.promptTokens + result.usage.completionTokens
+        } : {
+          promptTokens: 0,
+          completionTokens: 0,
+          totalTokens: 0
+        },
+        raw: result
+      };
+    } catch (error) {
+      throw classifyError(error);
+    } finally {
+      clearTimeout(timeoutId);
+    }
+  }
+  
+  /**
+   * Get the underlying AI SDK model (for advanced use)
+   */
+  async getModel(): Promise<unknown> {
+    await this.ensureInitialized();
+    return this.model;
+  }
+  
+  /**
+   * Get the underlying AI SDK provider (for advanced use)
+   */
+  async getProvider(): Promise<unknown> {
+    await this.ensureInitialized();
+    return this.provider;
+  }
+}
+
+/**
+ * Create an AI SDK backend instance
+ */
+export function createAISDKBackend(
+  modelString: string,
+  config?: AISDKBackendConfig
+): AISDKBackend {
+  return new AISDKBackend(modelString, config);
+}
+
+/**
+ * Classify an error into an AISDKError
+ */
+function classifyError(error: unknown): AISDKError {
+  if (error instanceof AISDKError) {
+    return error;
+  }
+  
+  const message = error instanceof Error ? error.message : String(error);
+  const lowerMessage = message.toLowerCase();
+  
+  // Check for timeout/abort
+  if (lowerMessage.includes('abort') || lowerMessage.includes('timeout')) {
+    return new AISDKError(
+      `Request timed out: ${message}`,
+      'TIMEOUT',
+      true,
+      error
+    );
+  }
+  
+  // Check for rate limit
+  if (lowerMessage.includes('rate limit') || lowerMessage.includes('429') || lowerMessage.includes('too many')) {
+    return new AISDKError(
+      `Rate limit exceeded: ${message}`,
+      'RATE_LIMIT',
+      true,
+      error,
+      429
+    );
+  }
+  
+  // Check for authentication
+  if (lowerMessage.includes('unauthorized') || lowerMessage.includes('401') || 
+      lowerMessage.includes('forbidden') || lowerMessage.includes('403') ||
+      lowerMessage.includes('api key') || lowerMessage.includes('authentication')) {
+    return new AISDKError(
+      `Authentication failed: ${message}`,
+      'AUTHENTICATION',
+      false,
+      error,
+      401
+    );
+  }
+  
+  // Check for invalid request
+  if (lowerMessage.includes('bad request') || lowerMessage.includes('400') ||
+      lowerMessage.includes('invalid')) {
+    return new AISDKError(
+      `Invalid request: ${message}`,
+      'INVALID_REQUEST',
+      false,
+      error,
+      400
+    );
+  }
+  
+  // Check for model not found
+  if (lowerMessage.includes('model not found') || lowerMessage.includes('404') ||
+      lowerMessage.includes('does not exist')) {
+    return new AISDKError(
+      `Model not found: ${message}`,
+      'MODEL_NOT_FOUND',
+      false,
+      error,
+      404
+    );
+  }
+  
+  // Check for network errors
+  if (lowerMessage.includes('network') || lowerMessage.includes('econnrefused') ||
+      lowerMessage.includes('enotfound') || lowerMessage.includes('socket')) {
+    return new AISDKError(
+      `Network error: ${message}`,
+      'NETWORK',
+      true,
+      error
+    );
+  }
+  
+  // Check for cancelled
+  if (lowerMessage.includes('cancel')) {
+    return new AISDKError(
+      `Request cancelled: ${message}`,
+      'CANCELLED',
+      false,
+      error
+    );
+  }
+  
+  // Check for missing dependency
+  if (lowerMessage.includes('cannot find module') || lowerMessage.includes('module_not_found')) {
+    return new AISDKError(
+      `Missing dependency: ${message}`,
+      'MISSING_DEPENDENCY',
+      false,
+      error
+    );
+  }
+  
+  // Check for server errors (retryable)
+  if (lowerMessage.includes('500') || lowerMessage.includes('502') ||
+      lowerMessage.includes('503') || lowerMessage.includes('504') ||
+      lowerMessage.includes('server error')) {
+    return new AISDKError(
+      `Server error: ${message}`,
+      'PROVIDER_ERROR',
+      true,
+      error,
+      500
+    );
+  }
+  
+  // Default to unknown error
+  return new AISDKError(
+    message,
+    'UNKNOWN',
+    false,
+    error
+  );
+}
+
+/**
+ * Sleep for a given number of milliseconds
+ */
+function sleep(ms: number): Promise<void> {
+  return new Promise(resolve => setTimeout(resolve, ms));
+}

src/praisonai-ts/src/llm/providers/ai-sdk/index.ts

@@ -0,0 +1,195 @@
+/**
+ * AI SDK Integration for praisonai-ts
+ * 
+ * This module provides integration with Vercel's AI SDK for multi-provider LLM support.
+ * All imports are lazy-loaded to avoid startup cost when AI SDK is not used.
+ * 
+ * @example Basic usage
+ * ```typescript
+ * import { createAISDKBackend, registerAISDKProviders } from 'praisonai';
+ * 
+ * // Register AI SDK providers (one-time)
+ * registerAISDKProviders();
+ * 
+ * // Create a backend for any supported provider
+ * const backend = createAISDKBackend('anthropic/claude-3-5-sonnet');
+ * const result = await backend.generateText({ messages: [...] });
+ * ```
+ */
+
+// Re-export types (these don't cause runtime imports)
+export type {
+  AISDKBackendConfig,
+  AISDKProviderOptions,
+  AttributionContext,
+  AISDKTelemetrySettings,
+  AISDKErrorCode,
+  PraisonStreamChunk,
+  TokenUsage,
+  FinishReason,
+  AISDKToolDefinition,
+  AISDKToolCall,
+  AISDKToolResult,
+} from './types';
+
+export { AISDKError, SAFE_DEFAULTS, AISDK_PROVIDERS, PROVIDER_ALIASES } from './types';
+
+// Re-export provider map functions
+export {
+  parseModelString,
+  resolveProviderAlias,
+  isProviderSupported,
+  getProviderPackage,
+  getProviderEnvKey,
+  listSupportedProviders,
+  registerCustomProvider,
+  unregisterCustomProvider,
+  getCustomProvider,
+  createAISDKProvider,
+  validateProviderApiKey,
+  getMissingApiKeyMessage,
+  type ParsedModel,
+  type ProviderFactory,
+} from './provider-map';
+
+// Re-export adapter functions
+export {
+  toAISDKPrompt,
+  toAISDKTools,
+  fromAISDKToolCall,
+  toAISDKToolResult,
+  fromAISDKResult,
+  fromAISDKStreamChunk,
+  mapFinishReason,
+  mapFinishReasonToProvider,
+  toAISDKToolChoice,
+  createSimplePrompt,
+  type AISDKMessage,
+  type AISDKSystemMessage,
+  type AISDKUserMessage,
+  type AISDKAssistantMessage,
+  type AISDKToolMessage,
+} from './adapter';
+
+// Re-export middleware functions
+export {
+  createAttributionMiddleware,
+  createLoggingMiddleware,
+  createTimeoutMiddleware,
+  composeMiddleware,
+  createStandardMiddleware,
+  redactSensitiveData,
+  type AISDKMiddleware,
+} from './middleware';
+
+// Lazy-loaded backend exports
+// These use getters to avoid importing the backend module until needed
+
+let _AISDKBackend: typeof import('./backend').AISDKBackend | null = null;
+let _createAISDKBackend: typeof import('./backend').createAISDKBackend | null = null;
+
+/**
+ * Get the AISDKBackend class (lazy loaded)
+ */
+export function getAISDKBackendClass(): typeof import('./backend').AISDKBackend {
+  if (!_AISDKBackend) {
+    const backend = require('./backend');
+    _AISDKBackend = backend.AISDKBackend;
+  }
+  return _AISDKBackend!;
+}
+
+/**
+ * Create an AI SDK backend instance
+ * 
+ * @param modelString - Model string in format "provider/model" or just "model"
+ * @param config - Optional configuration
+ * @returns AISDKBackend instance implementing LLMProvider
+ * 
+ * @example
+ * ```typescript
+ * const backend = createAISDKBackend('openai/gpt-4o');
+ * const backend = createAISDKBackend('anthropic/claude-3-5-sonnet');
+ * const backend = createAISDKBackend('google/gemini-2.0-flash');
+ * ```
+ */
+export function createAISDKBackend(
+  modelString: string,
+  config?: import('./types').AISDKBackendConfig
+): import('./backend').AISDKBackend {
+  if (!_createAISDKBackend) {
+    const backend = require('./backend');
+    _createAISDKBackend = backend.createAISDKBackend;
+  }
+  return _createAISDKBackend!(modelString, config);
+}
+
+// Re-export the class for direct instantiation
+export { AISDKBackend } from './backend';
+
+/**
+ * Register AI SDK providers with the praisonai-ts provider registry
+ * This allows using AI SDK providers via the standard createProvider() function
+ * 
+ * @param customProviders - Optional map of custom provider factories
+ * 
+ * @example
+ * ```typescript
+ * import { registerAISDKProviders, createProvider } from 'praisonai';
+ * 
+ * // Register all AI SDK providers
+ * registerAISDKProviders();
+ * 
+ * // Now you can use AI SDK providers via createProvider
+ * const provider = createProvider('aisdk:anthropic/claude-3-5-sonnet');
+ * ```
+ */
+export function registerAISDKProviders(
+  customProviders?: Record<string, import('./provider-map').ProviderFactory>
+): void {
+  // Register custom providers if provided
+  if (customProviders) {
+    const { registerCustomProvider } = require('./provider-map');
+    for (const [id, factory] of Object.entries(customProviders)) {
+      registerCustomProvider(id, factory);
+    }
+  }
+  
+  // Note: Integration with main provider registry is done in ../index.ts
+  // This function is mainly for registering custom AI SDK providers
+}
+
+/**
+ * Check if AI SDK is available (installed)
+ */
+export async function isAISDKAvailable(): Promise<boolean> {
+  try {
+    // Use variable to prevent TypeScript from resolving at compile time
+    const moduleName = 'ai';
+    await import(moduleName);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+/**
+ * Get AI SDK version if available
+ */
+export async function getAISDKVersion(): Promise<string | null> {
+  try {
+    // Use variable to prevent TypeScript from resolving at compile time
+    const moduleName = 'ai';
+    await import(moduleName);
+    // AI SDK doesn't export version directly, so we check package.json
+    try {
+      const pkgPath = 'ai/package.json';
+      const pkg = require(pkgPath);
+      return pkg.version;
+    } catch {
+      return 'installed';
+    }
+  } catch {
+    return null;
+  }
+}

src/praisonai-ts/src/llm/providers/ai-sdk/middleware.ts

@@ -0,0 +1,316 @@
+/**
+ * AI SDK Middleware
+ * 
+ * Provides middleware for injecting attribution context into AI SDK calls.
+ * Supports multi-agent safety with agent_id, run_id, trace_id, session_id.
+ */
+
+import type { AttributionContext, AISDKBackendConfig } from './types';
+
+/**
+ * Middleware interface for AI SDK language models
+ * Compatible with AI SDK's LanguageModelMiddleware type
+ */
+export interface AISDKMiddleware {
+  transformParams?: (options: {
+    params: Record<string, unknown>;
+    type: 'generate' | 'stream';
+    model: unknown;
+  }) => Promise<Record<string, unknown>> | Record<string, unknown>;
+  
+  wrapGenerate?: (options: {
+    doGenerate: () => Promise<unknown>;
+    doStream: () => Promise<unknown>;
+    params: Record<string, unknown>;
+    model: unknown;
+  }) => Promise<unknown>;
+  
+  wrapStream?: (options: {
+    doGenerate: () => Promise<unknown>;
+    doStream: () => Promise<unknown>;
+    params: Record<string, unknown>;
+    model: unknown;
+  }) => Promise<unknown>;
+}
+
+/**
+ * Create attribution middleware that injects agent context into requests
+ * 
+ * Injects:
+ * - Headers: X-Agent-Id, X-Run-Id, X-Trace-Id, X-Session-Id
+ * - Provider options metadata where supported
+ */
+export function createAttributionMiddleware(ctx: AttributionContext): AISDKMiddleware {
+  return {
+    transformParams: async ({ params }) => {
+      // Build attribution headers
+      const attributionHeaders: Record<string, string> = {};
+      
+      if (ctx.agentId) {
+        attributionHeaders['X-Agent-Id'] = ctx.agentId;
+      }
+      if (ctx.runId) {
+        attributionHeaders['X-Run-Id'] = ctx.runId;
+      }
+      if (ctx.traceId) {
+        attributionHeaders['X-Trace-Id'] = ctx.traceId;
+      }
+      if (ctx.sessionId) {
+        attributionHeaders['X-Session-Id'] = ctx.sessionId;
+      }
+      if (ctx.parentSpanId) {
+        attributionHeaders['X-Parent-Span-Id'] = ctx.parentSpanId;
+      }
+      
+      // Merge with existing headers
+      const existingHeaders = (params.headers as Record<string, string>) || {};
+      const mergedHeaders = {
+        ...existingHeaders,
+        ...attributionHeaders
+      };
+      
+      // Build provider options metadata
+      const attributionMetadata: Record<string, string> = {};
+      if (ctx.agentId) attributionMetadata.agentId = ctx.agentId;
+      if (ctx.runId) attributionMetadata.runId = ctx.runId;
+      if (ctx.traceId) attributionMetadata.traceId = ctx.traceId;
+      if (ctx.sessionId) attributionMetadata.sessionId = ctx.sessionId;
+      
+      // Merge with existing provider options
+      const existingProviderOptions = (params.providerOptions as Record<string, unknown>) || {};
+      const existingMetadata = (existingProviderOptions.metadata as Record<string, unknown>) || {};
+      
+      const mergedProviderOptions = {
+        ...existingProviderOptions,
+        metadata: {
+          ...existingMetadata,
+          ...attributionMetadata
+        }
+      };
+      
+      return {
+        ...params,
+        headers: mergedHeaders,
+        providerOptions: mergedProviderOptions
+      };
+    }
+  };
+}
+
+/**
+ * Create logging middleware for debug purposes
+ * Only logs when debugLogging is enabled
+ */
+export function createLoggingMiddleware(config: AISDKBackendConfig): AISDKMiddleware {
+  if (!config.debugLogging) {
+    return {};
+  }
+  
+  return {
+    transformParams: async ({ params, type }) => {
+      const safeParams = config.redactLogs !== false 
+        ? redactSensitiveData(params) 
+        : params;
+      
+      console.log(`[AI SDK] ${type} request:`, JSON.stringify(safeParams, null, 2));
+      return params;
+    },
+    
+    wrapGenerate: async ({ doGenerate, params }) => {
+      const startTime = Date.now();
+      try {
+        const result = await doGenerate();
+        const duration = Date.now() - startTime;
+        console.log(`[AI SDK] generate completed in ${duration}ms`);
+        return result;
+      } catch (error) {
+        const duration = Date.now() - startTime;
+        console.error(`[AI SDK] generate failed after ${duration}ms:`, error);
+        throw error;
+      }
+    },
+    
+    wrapStream: async ({ doStream, params }) => {
+      const startTime = Date.now();
+      console.log(`[AI SDK] stream started`);
+      try {
+        const result = await doStream();
+        const duration = Date.now() - startTime;
+        console.log(`[AI SDK] stream setup completed in ${duration}ms`);
+        return result;
+      } catch (error) {
+        const duration = Date.now() - startTime;
+        console.error(`[AI SDK] stream failed after ${duration}ms:`, error);
+        throw error;
+      }
+    }
+  };
+}
+
+/**
+ * Create timeout middleware that wraps requests with AbortController
+ */
+export function createTimeoutMiddleware(timeoutMs: number): AISDKMiddleware {
+  return {
+    transformParams: async ({ params }) => {
+      // If there's already an abort signal, don't override it
+      if (params.abortSignal) {
+        return params;
+      }
+      
+      const controller = new AbortController();
+      const timeoutId = setTimeout(() => {
+        controller.abort(new Error(`Request timed out after ${timeoutMs}ms`));
+      }, timeoutMs);
+      
+      // Store timeout ID for cleanup (attached to signal)
+      (controller.signal as any).__timeoutId = timeoutId;
+      
+      return {
+        ...params,
+        abortSignal: controller.signal
+      };
+    }
+  };
+}
+
+/**
+ * Compose multiple middlewares into one
+ * Middlewares are applied in order (first transforms first, last wraps innermost)
+ */
+export function composeMiddleware(...middlewares: AISDKMiddleware[]): AISDKMiddleware {
+  const validMiddlewares = middlewares.filter(m => m && Object.keys(m).length > 0);
+  
+  if (validMiddlewares.length === 0) {
+    return {};
+  }
+  
+  if (validMiddlewares.length === 1) {
+    return validMiddlewares[0];
+  }
+  
+  return {
+    transformParams: async (options) => {
+      let params = options.params;
+      
+      for (const middleware of validMiddlewares) {
+        if (middleware.transformParams) {
+          params = await middleware.transformParams({
+            ...options,
+            params
+          });
+        }
+      }
+      
+      return params;
+    },
+    
+    wrapGenerate: async (options) => {
+      // Build nested wrapper from inside out
+      let doGenerate = options.doGenerate;
+      
+      for (let i = validMiddlewares.length - 1; i >= 0; i--) {
+        const middleware = validMiddlewares[i];
+        if (middleware.wrapGenerate) {
+          const currentDoGenerate = doGenerate;
+          const currentMiddleware = middleware;
+          doGenerate = () => currentMiddleware.wrapGenerate!({
+            ...options,
+            doGenerate: currentDoGenerate
+          });
+        }
+      }
+      
+      return doGenerate();
+    },
+    
+    wrapStream: async (options) => {
+      // Build nested wrapper from inside out
+      let doStream = options.doStream;
+      
+      for (let i = validMiddlewares.length - 1; i >= 0; i--) {
+        const middleware = validMiddlewares[i];
+        if (middleware.wrapStream) {
+          const currentDoStream = doStream;
+          const currentMiddleware = middleware;
+          doStream = () => currentMiddleware.wrapStream!({
+            ...options,
+            doStream: currentDoStream
+          });
+        }
+      }
+      
+      return doStream();
+    }
+  };
+}
+
+/**
+ * Redact sensitive data from objects for safe logging
+ */
+export function redactSensitiveData(obj: unknown): unknown {
+  if (obj === null || obj === undefined) {
+    return obj;
+  }
+  
+  if (typeof obj !== 'object') {
+    return obj;
+  }
+  
+  if (Array.isArray(obj)) {
+    return obj.map(redactSensitiveData);
+  }
+  
+  const result: Record<string, unknown> = {};
+  const sensitiveKeys = [
+    'apiKey', 'api_key', 'apikey',
+    'token', 'secret', 'password',
+    'authorization', 'auth',
+    'key', 'credential', 'credentials'
+  ];
+  
+  for (const [key, value] of Object.entries(obj as Record<string, unknown>)) {
+    const lowerKey = key.toLowerCase();
+    
+    if (sensitiveKeys.some(sk => lowerKey.includes(sk))) {
+      if (typeof value === 'string' && value.length > 4) {
+        result[key] = value.slice(0, 4) + '****';
+      } else {
+        result[key] = '****';
+      }
+    } else if (typeof value === 'object') {
+      result[key] = redactSensitiveData(value);
+    } else {
+      result[key] = value;
+    }
+  }
+  
+  return result;
+}
+
+/**
+ * Create all standard middlewares for the AI SDK backend
+ */
+export function createStandardMiddleware(
+  config: AISDKBackendConfig,
+  attribution?: AttributionContext
+): AISDKMiddleware {
+  const middlewares: AISDKMiddleware[] = [];
+  
+  // Attribution middleware (if context provided)
+  if (attribution && Object.keys(attribution).length > 0) {
+    middlewares.push(createAttributionMiddleware(attribution));
+  }
+  
+  // Timeout middleware
+  if (config.timeout && config.timeout > 0) {
+    middlewares.push(createTimeoutMiddleware(config.timeout));
+  }
+  
+  // Logging middleware (only if debug enabled)
+  if (config.debugLogging) {
+    middlewares.push(createLoggingMiddleware(config));
+  }
+  
+  return composeMiddleware(...middlewares);
+}

src/praisonai-ts/src/llm/providers/ai-sdk/provider-map.ts

@@ -0,0 +1,287 @@
+/**
+ * AI SDK Provider Map
+ * 
+ * Maps model strings to AI SDK providers with lazy loading.
+ * Supports formats: "provider/model" or "model" (uses default provider)
+ */
+
+import { 
+  AISDKError, 
+  AISDKProviderOptions, 
+  AISDK_PROVIDERS, 
+  PROVIDER_ALIASES 
+} from './types';
+
+/**
+ * Parsed model string result
+ */
+export interface ParsedModel {
+  providerId: string;
+  modelId: string;
+}
+
+/**
+ * Provider factory function type
+ */
+export type ProviderFactory = (options?: AISDKProviderOptions) => unknown;
+
+/**
+ * Custom provider registration
+ */
+const customProviders = new Map<string, ProviderFactory>();
+
+/**
+ * Parse a model string into provider and model ID
+ * 
+ * @example
+ * parseModelString("openai/gpt-4o") // { providerId: "openai", modelId: "gpt-4o" }
+ * parseModelString("gpt-4o-mini") // { providerId: "openai", modelId: "gpt-4o-mini" }
+ * parseModelString("claude-3-5-sonnet") // { providerId: "anthropic", modelId: "claude-3-5-sonnet" }
+ */
+export function parseModelString(model: string, defaultProvider: string = 'openai'): ParsedModel {
+  if (model.includes('/')) {
+    const [providerId, ...rest] = model.split('/');
+    const resolvedProvider = resolveProviderAlias(providerId.toLowerCase());
+    return { 
+      providerId: resolvedProvider, 
+      modelId: rest.join('/') 
+    };
+  }
+  
+  // Infer provider from model prefix
+  const inferredProvider = inferProviderFromModel(model);
+  return { 
+    providerId: inferredProvider || defaultProvider, 
+    modelId: model 
+  };
+}
+
+/**
+ * Resolve provider alias to canonical name
+ */
+export function resolveProviderAlias(providerId: string): string {
+  return PROVIDER_ALIASES[providerId] || providerId;
+}
+
+/**
+ * Infer provider from model name prefix
+ */
+function inferProviderFromModel(model: string): string | null {
+  const lowerModel = model.toLowerCase();
+  
+  // OpenAI models
+  if (lowerModel.startsWith('gpt-') || 
+      lowerModel.startsWith('o1') || 
+      lowerModel.startsWith('o3') ||
+      lowerModel.startsWith('text-') ||
+      lowerModel.startsWith('davinci') ||
+      lowerModel.startsWith('curie') ||
+      lowerModel.startsWith('babbage') ||
+      lowerModel.startsWith('ada')) {
+    return 'openai';
+  }
+  
+  // Anthropic models
+  if (lowerModel.startsWith('claude-')) {
+    return 'anthropic';
+  }
+  
+  // Google models
+  if (lowerModel.startsWith('gemini-') || 
+      lowerModel.startsWith('palm-') ||
+      lowerModel.startsWith('bison')) {
+    return 'google';
+  }
+  
+  // Mistral models
+  if (lowerModel.startsWith('mistral-') || 
+      lowerModel.startsWith('mixtral-') ||
+      lowerModel.startsWith('codestral')) {
+    return 'mistral';
+  }
+  
+  // Cohere models
+  if (lowerModel.startsWith('command-')) {
+    return 'cohere';
+  }
+  
+  // DeepSeek models
+  if (lowerModel.startsWith('deepseek-')) {
+    return 'deepseek';
+  }
+  
+  // Groq models (llama, mixtral via groq)
+  if (lowerModel.startsWith('llama-') || lowerModel.includes('groq')) {
+    return 'groq';
+  }
+  
+  return null;
+}
+
+/**
+ * Check if a provider is supported
+ */
+export function isProviderSupported(providerId: string): boolean {
+  const resolved = resolveProviderAlias(providerId);
+  return resolved in AISDK_PROVIDERS || customProviders.has(resolved);
+}
+
+/**
+ * Get the package name for a provider
+ */
+export function getProviderPackage(providerId: string): string | null {
+  const resolved = resolveProviderAlias(providerId);
+  return AISDK_PROVIDERS[resolved]?.package || null;
+}
+
+/**
+ * Get the environment variable key for a provider's API key
+ */
+export function getProviderEnvKey(providerId: string): string | null {
+  const resolved = resolveProviderAlias(providerId);
+  return AISDK_PROVIDERS[resolved]?.envKey || null;
+}
+
+/**
+ * List all supported providers
+ */
+export function listSupportedProviders(): string[] {
+  const builtIn = Object.keys(AISDK_PROVIDERS);
+  const custom = Array.from(customProviders.keys());
+  return [...new Set([...builtIn, ...custom])];
+}
+
+/**
+ * Register a custom provider factory
+ * 
+ * @example
+ * registerCustomProvider('my-provider', (options) => createMyProvider(options));
+ */
+export function registerCustomProvider(
+  providerId: string, 
+  factory: ProviderFactory
+): void {
+  customProviders.set(providerId.toLowerCase(), factory);
+}
+
+/**
+ * Unregister a custom provider
+ */
+export function unregisterCustomProvider(providerId: string): boolean {
+  return customProviders.delete(providerId.toLowerCase());
+}
+
+/**
+ * Get a custom provider factory
+ */
+export function getCustomProvider(providerId: string): ProviderFactory | undefined {
+  return customProviders.get(providerId.toLowerCase());
+}
+
+/**
+ * Dynamically import and create an AI SDK provider
+ * Uses lazy loading to avoid importing AI SDK packages until needed
+ */
+export async function createAISDKProvider(
+  providerId: string,
+  options?: AISDKProviderOptions
+): Promise<unknown> {
+  const resolved = resolveProviderAlias(providerId);
+  
+  // Check for custom provider first
+  const customFactory = customProviders.get(resolved);
+  if (customFactory) {
+    return customFactory(options);
+  }
+  
+  // Check if provider is supported
+  const providerInfo = AISDK_PROVIDERS[resolved];
+  if (!providerInfo) {
+    throw new AISDKError(
+      `Provider '${providerId}' is not supported. ` +
+      `Supported providers: ${listSupportedProviders().join(', ')}`,
+      'PROVIDER_NOT_FOUND',
+      false
+    );
+  }
+  
+  // Dynamically import the provider package
+  try {
+    const providerModule = await import(providerInfo.package);
+    
+    // Most AI SDK providers export a create<Provider> function
+    const createFnName = `create${capitalize(resolved.replace(/-/g, ''))}`;
+    const createFn = providerModule[createFnName] || providerModule.default;
+    
+    if (typeof createFn !== 'function') {
+      // Try direct provider export (some packages export the provider directly)
+      const providerName = resolved.replace(/-/g, '');
+      const directProvider = providerModule[providerName];
+      if (directProvider) {
+        return directProvider;
+      }
+      
+      throw new AISDKError(
+        `Could not find provider factory in '${providerInfo.package}'`,
+        'PROVIDER_ERROR',
+        false
+      );
+    }
+    
+    return createFn(options);
+  } catch (error: unknown) {
+    if (error instanceof AISDKError) {
+      throw error;
+    }
+    
+    const errorMessage = error instanceof Error ? error.message : String(error);
+    
+    // Check if it's a missing dependency error
+    if (errorMessage.includes('Cannot find module') || 
+        errorMessage.includes('MODULE_NOT_FOUND')) {
+      throw new AISDKError(
+        `AI SDK provider package '${providerInfo.package}' is not installed. ` +
+        `Install it with: npm install ${providerInfo.package}`,
+        'MISSING_DEPENDENCY',
+        false,
+        error
+      );
+    }
+    
+    throw new AISDKError(
+      `Failed to create AI SDK provider '${providerId}': ${errorMessage}`,
+      'PROVIDER_ERROR',
+      false,
+      error
+    );
+  }
+}
+
+/**
+ * Validate that a provider has the required API key
+ */
+export function validateProviderApiKey(providerId: string): boolean {
+  const envKey = getProviderEnvKey(providerId);
+  if (!envKey) {
+    return true; // Custom providers may not need env keys
+  }
+  return !!process.env[envKey];
+}
+
+/**
+ * Get missing API key message for a provider
+ */
+export function getMissingApiKeyMessage(providerId: string): string {
+  const envKey = getProviderEnvKey(providerId);
+  if (!envKey) {
+    return `Provider '${providerId}' may require authentication. Check provider documentation.`;
+  }
+  return `Missing API key for provider '${providerId}'. Set the ${envKey} environment variable.`;
+}
+
+/**
+ * Capitalize first letter of a string
+ */
+function capitalize(str: string): string {
+  return str.charAt(0).toUpperCase() + str.slice(1);
+}

src/praisonai-ts/src/llm/providers/ai-sdk/types.ts

@@ -0,0 +1,227 @@
+/**
+ * AI SDK Backend Types
+ * 
+ * Type definitions for the AI SDK integration with praisonai-ts.
+ * These types define the configuration, errors, and stream chunk formats.
+ */
+
+/**
+ * Attribution context for multi-agent safety
+ * Propagated to AI SDK calls via middleware
+ */
+export interface AttributionContext {
+  /** Unique identifier for the agent instance */
+  agentId?: string;
+  /** Unique identifier for this execution run */
+  runId?: string;
+  /** Trace ID for distributed tracing (OpenTelemetry compatible) */
+  traceId?: string;
+  /** Session ID for conversation continuity */
+  sessionId?: string;
+  /** Parent span ID for nested operations */
+  parentSpanId?: string;
+}
+
+/**
+ * Provider-specific configuration options
+ */
+export interface AISDKProviderOptions {
+  /** API key for the provider */
+  apiKey?: string;
+  /** Base URL override for the provider */
+  baseURL?: string;
+  /** Custom headers to include in requests */
+  headers?: Record<string, string>;
+  /** Custom fetch implementation */
+  fetch?: typeof fetch;
+}
+
+/**
+ * Telemetry settings for AI SDK calls
+ */
+export interface AISDKTelemetrySettings {
+  /** Enable or disable telemetry */
+  isEnabled?: boolean;
+  /** Enable or disable input recording */
+  recordInputs?: boolean;
+  /** Enable or disable output recording */
+  recordOutputs?: boolean;
+  /** Function identifier for grouping telemetry */
+  functionId?: string;
+  /** Additional metadata for telemetry */
+  metadata?: Record<string, unknown>;
+}
+
+/**
+ * Configuration for the AI SDK backend
+ */
+export interface AISDKBackendConfig {
+  /** Default provider if not specified in model string */
+  defaultProvider?: string;
+  /** Provider-specific configurations */
+  providers?: Record<string, AISDKProviderOptions>;
+  /** Attribution context for multi-agent safety */
+  attribution?: AttributionContext;
+  /** Telemetry settings */
+  telemetry?: AISDKTelemetrySettings;
+  /** Request timeout in milliseconds (default: 60000) */
+  timeout?: number;
+  /** Number of retries for retryable errors (default: 2) */
+  maxRetries?: number;
+  /** Maximum output tokens (default: 4096) */
+  maxOutputTokens?: number;
+  /** Enable debug logging (default: false) */
+  debugLogging?: boolean;
+  /** Redact sensitive data in logs (default: true) */
+  redactLogs?: boolean;
+}
+
+/**
+ * Error codes for AI SDK errors
+ */
+export type AISDKErrorCode =
+  | 'PROVIDER_ERROR'      // Provider-specific error
+  | 'RATE_LIMIT'          // 429 - Too many requests
+  | 'AUTHENTICATION'      // 401/403 - Auth failure
+  | 'INVALID_REQUEST'     // 400 - Bad request
+  | 'MODEL_NOT_FOUND'     // Model doesn't exist
+  | 'PROVIDER_NOT_FOUND'  // Provider not registered
+  | 'TIMEOUT'             // Request timeout
+  | 'NETWORK'             // Network failure
+  | 'CANCELLED'           // Request cancelled
+  | 'MISSING_DEPENDENCY'  // AI SDK not installed
+  | 'UNKNOWN';            // Unknown error
+
+/**
+ * Custom error class for AI SDK errors
+ */
+export class AISDKError extends Error {
+  public readonly code: AISDKErrorCode;
+  public readonly isRetryable: boolean;
+  public readonly cause?: unknown;
+  public readonly statusCode?: number;
+
+  constructor(
+    message: string,
+    code: AISDKErrorCode,
+    isRetryable: boolean,
+    cause?: unknown,
+    statusCode?: number
+  ) {
+    super(message);
+    this.name = 'AISDKError';
+    this.code = code;
+    this.isRetryable = isRetryable;
+    this.cause = cause;
+    this.statusCode = statusCode;
+    
+    // Maintain proper stack trace in V8
+    if (Error.captureStackTrace) {
+      Error.captureStackTrace(this, AISDKError);
+    }
+  }
+}
+
+/**
+ * Stream chunk types for streaming responses
+ */
+export type PraisonStreamChunk =
+  | { type: 'text'; text: string }
+  | { type: 'tool-call-start'; toolCallId: string; toolName: string }
+  | { type: 'tool-call-delta'; toolCallId: string; argsTextDelta: string }
+  | { type: 'tool-call-end'; toolCallId: string; args: unknown }
+  | { type: 'finish'; finishReason: string; usage?: TokenUsage }
+  | { type: 'error'; error: AISDKError };
+
+/**
+ * Token usage information
+ */
+export interface TokenUsage {
+  promptTokens: number;
+  completionTokens: number;
+  totalTokens: number;
+}
+
+/**
+ * Finish reasons for generation
+ */
+export type FinishReason = 
+  | 'stop'           // Natural completion
+  | 'length'         // Max tokens reached
+  | 'tool-calls'     // Tool calls requested
+  | 'content-filter' // Content filtered
+  | 'error'          // Error occurred
+  | 'cancelled'      // Request cancelled
+  | 'unknown';       // Unknown reason
+
+/**
+ * Tool definition for AI SDK
+ */
+export interface AISDKToolDefinition {
+  type: 'function';
+  name: string;
+  description?: string;
+  parameters: Record<string, unknown>;
+}
+
+/**
+ * Tool call from AI SDK response
+ */
+export interface AISDKToolCall {
+  toolCallId: string;
+  toolName: string;
+  args: unknown;
+}
+
+/**
+ * Tool result to send back to AI SDK
+ */
+export interface AISDKToolResult {
+  toolCallId: string;
+  toolName: string;
+  result: unknown;
+}
+
+/**
+ * Safe defaults for AI SDK backend
+ */
+export const SAFE_DEFAULTS = {
+  timeout: 60000,           // 60s request timeout
+  maxRetries: 2,            // Retry on transient failures
+  maxOutputTokens: 4096,    // Prevent runaway generation
+  redactLogs: true,         // Never log API keys
+  debugLogging: false,      // Opt-in verbose logging
+} as const;
+
+/**
+ * Supported AI SDK providers with their package names
+ */
+export const AISDK_PROVIDERS: Record<string, { package: string; envKey: string }> = {
+  openai: { package: '@ai-sdk/openai', envKey: 'OPENAI_API_KEY' },
+  anthropic: { package: '@ai-sdk/anthropic', envKey: 'ANTHROPIC_API_KEY' },
+  google: { package: '@ai-sdk/google', envKey: 'GOOGLE_API_KEY' },
+  azure: { package: '@ai-sdk/azure', envKey: 'AZURE_API_KEY' },
+  'amazon-bedrock': { package: '@ai-sdk/amazon-bedrock', envKey: 'AWS_ACCESS_KEY_ID' },
+  groq: { package: '@ai-sdk/groq', envKey: 'GROQ_API_KEY' },
+  mistral: { package: '@ai-sdk/mistral', envKey: 'MISTRAL_API_KEY' },
+  cohere: { package: '@ai-sdk/cohere', envKey: 'COHERE_API_KEY' },
+  deepseek: { package: '@ai-sdk/deepseek', envKey: 'DEEPSEEK_API_KEY' },
+  xai: { package: '@ai-sdk/xai', envKey: 'XAI_API_KEY' },
+  fireworks: { package: '@ai-sdk/fireworks', envKey: 'FIREWORKS_API_KEY' },
+  togetherai: { package: '@ai-sdk/togetherai', envKey: 'TOGETHER_API_KEY' },
+  perplexity: { package: '@ai-sdk/perplexity', envKey: 'PERPLEXITY_API_KEY' },
+} as const;
+
+/**
+ * Provider aliases for convenience
+ */
+export const PROVIDER_ALIASES: Record<string, string> = {
+  oai: 'openai',
+  claude: 'anthropic',
+  gemini: 'google',
+  gcp: 'google',
+  aws: 'amazon-bedrock',
+  bedrock: 'amazon-bedrock',
+  together: 'togetherai',
+  pplx: 'perplexity',
+} as const;

src/praisonai-ts/src/llm/providers/index.ts

@@ -206,3 +206,57 @@ export function isProviderAvailable(providerId: string): boolean {
 export function getAvailableProviders(): string[] {
   return getDefaultRegistry().list().filter(isProviderAvailable);
 }
+
+// ============================================================================
+// AI SDK Integration Exports
+// ============================================================================
+
+/**
+ * AI SDK Backend - Multi-provider LLM support via Vercel's AI SDK
+ * 
+ * @example
+ * ```typescript
+ * import { createAISDKBackend } from 'praisonai';
+ * 
+ * const backend = createAISDKBackend('anthropic/claude-3-5-sonnet');
+ * const result = await backend.generateText({ messages: [...] });
+ * ```
+ */
+export {
+  // Backend
+  AISDKBackend,
+  createAISDKBackend,
+  
+  // Provider utilities
+  isProviderSupported as isAISDKProviderSupported,
+  listSupportedProviders as listAISDKProviders,
+  registerCustomProvider as registerAISDKCustomProvider,
+  validateProviderApiKey as validateAISDKProviderApiKey,
+  getMissingApiKeyMessage as getAISDKMissingApiKeyMessage,
+  isAISDKAvailable,
+  getAISDKVersion,
+  
+  // Types
+  AISDKError,
+  SAFE_DEFAULTS as AISDK_SAFE_DEFAULTS,
+  AISDK_PROVIDERS,
+  PROVIDER_ALIASES as AISDK_PROVIDER_ALIASES,
+  
+  // Middleware
+  createAttributionMiddleware,
+  createStandardMiddleware,
+  redactSensitiveData,
+} from './ai-sdk';
+
+export type {
+  AISDKBackendConfig,
+  AISDKProviderOptions,
+  AttributionContext,
+  AISDKTelemetrySettings,
+  AISDKErrorCode,
+  PraisonStreamChunk,
+  AISDKToolDefinition,
+  AISDKToolCall,
+  AISDKToolResult,
+  AISDKMiddleware,
+} from './ai-sdk';

src/praisonai-ts/tests/unit/llm/ai-sdk/adapter.test.ts

@@ -0,0 +1,391 @@
+/**
+ * AI SDK Adapter Tests
+ */
+
+import {
+  toAISDKPrompt,
+  toAISDKTools,
+  fromAISDKToolCall,
+  fromAISDKResult,
+  fromAISDKStreamChunk,
+  mapFinishReason,
+  mapFinishReasonToProvider,
+  toAISDKToolChoice,
+  createSimplePrompt,
+} from '../../../../src/llm/providers/ai-sdk/adapter';
+
+import type { Message, ToolDefinition } from '../../../../src/llm/providers/types';
+
+describe('toAISDKPrompt', () => {
+  it('should convert system message', () => {
+    const messages: Message[] = [
+      { role: 'system', content: 'You are helpful' }
+    ];
+    
+    const result = toAISDKPrompt(messages);
+    
+    expect(result).toHaveLength(1);
+    expect(result[0]).toEqual({
+      role: 'system',
+      content: 'You are helpful'
+    });
+  });
+
+  it('should convert user message', () => {
+    const messages: Message[] = [
+      { role: 'user', content: 'Hello!' }
+    ];
+    
+    const result = toAISDKPrompt(messages);
+    
+    expect(result).toHaveLength(1);
+    expect(result[0]).toEqual({
+      role: 'user',
+      content: [{ type: 'text', text: 'Hello!' }]
+    });
+  });
+
+  it('should convert assistant message with text', () => {
+    const messages: Message[] = [
+      { role: 'assistant', content: 'Hi there!' }
+    ];
+    
+    const result = toAISDKPrompt(messages);
+    
+    expect(result).toHaveLength(1);
+    expect(result[0]).toEqual({
+      role: 'assistant',
+      content: [{ type: 'text', text: 'Hi there!' }]
+    });
+  });
+
+  it('should convert assistant message with tool calls', () => {
+    const messages: Message[] = [
+      {
+        role: 'assistant',
+        content: null,
+        tool_calls: [{
+          id: 'call_123',
+          type: 'function',
+          function: {
+            name: 'get_weather',
+            arguments: '{"city": "London"}'
+          }
+        }]
+      }
+    ];
+    
+    const result = toAISDKPrompt(messages);
+    
+    expect(result).toHaveLength(1);
+    expect(result[0].role).toBe('assistant');
+    expect((result[0] as any).content).toHaveLength(1);
+    expect((result[0] as any).content[0]).toEqual({
+      type: 'tool-call',
+      toolCallId: 'call_123',
+      toolName: 'get_weather',
+      args: { city: 'London' }
+    });
+  });
+
+  it('should convert tool message', () => {
+    const messages: Message[] = [
+      {
+        role: 'tool',
+        content: '{"temperature": 20}',
+        tool_call_id: 'call_123',
+        name: 'get_weather'
+      }
+    ];
+    
+    const result = toAISDKPrompt(messages);
+    
+    expect(result).toHaveLength(1);
+    expect(result[0]).toEqual({
+      role: 'tool',
+      content: [{
+        type: 'tool-result',
+        toolCallId: 'call_123',
+        toolName: 'get_weather',
+        result: { temperature: 20 }
+      }]
+    });
+  });
+
+  it('should handle null content', () => {
+    const messages: Message[] = [
+      { role: 'user', content: null }
+    ];
+    
+    const result = toAISDKPrompt(messages);
+    
+    expect(result[0]).toEqual({
+      role: 'user',
+      content: [{ type: 'text', text: '' }]
+    });
+  });
+});
+
+describe('toAISDKTools', () => {
+  it('should convert tool definitions', async () => {
+    const tools: ToolDefinition[] = [
+      {
+        name: 'get_weather',
+        description: 'Get the weather for a city',
+        parameters: {
+          type: 'object',
+          properties: {
+            city: { type: 'string' }
+          },
+          required: ['city']
+        }
+      }
+    ];
+    
+    const result = await toAISDKTools(tools);
+    
+    // Check that tool was created with description
+    expect(result.get_weather).toBeDefined();
+    expect(result.get_weather.description).toBe('Get the weather for a city');
+  });
+
+  it('should handle tools without parameters', async () => {
+    const tools: ToolDefinition[] = [
+      { name: 'get_time' }
+    ];
+    
+    const result = await toAISDKTools(tools);
+    
+    expect(result.get_time).toBeDefined();
+  });
+});
+
+describe('fromAISDKToolCall', () => {
+  it('should convert AI SDK tool call to praisonai format', () => {
+    const toolCall = {
+      toolCallId: 'call_123',
+      toolName: 'get_weather',
+      args: { city: 'London' }
+    };
+    
+    const result = fromAISDKToolCall(toolCall);
+    
+    expect(result).toEqual({
+      id: 'call_123',
+      type: 'function',
+      function: {
+        name: 'get_weather',
+        arguments: '{"city":"London"}'
+      }
+    });
+  });
+
+  it('should handle string args', () => {
+    const toolCall = {
+      toolCallId: 'call_123',
+      toolName: 'test',
+      args: '{"key": "value"}'
+    };
+    
+    const result = fromAISDKToolCall(toolCall);
+    
+    expect(result.function.arguments).toBe('{"key": "value"}');
+  });
+});
+
+describe('fromAISDKResult', () => {
+  it('should convert AI SDK result to praisonai format', () => {
+    const result = fromAISDKResult({
+      text: 'Hello!',
+      usage: { promptTokens: 10, completionTokens: 5 },
+      finishReason: 'stop'
+    });
+    
+    expect(result.text).toBe('Hello!');
+    expect(result.usage).toEqual({
+      promptTokens: 10,
+      completionTokens: 5,
+      totalTokens: 15
+    });
+    expect(result.finishReason).toBe('stop');
+  });
+
+  it('should handle missing usage', () => {
+    const result = fromAISDKResult({
+      text: 'Hello!',
+      finishReason: 'stop'
+    });
+    
+    expect(result.usage).toEqual({
+      promptTokens: 0,
+      completionTokens: 0,
+      totalTokens: 0
+    });
+  });
+
+  it('should handle tool calls', () => {
+    const result = fromAISDKResult({
+      text: '',
+      toolCalls: [{
+        toolCallId: 'call_123',
+        toolName: 'test',
+        args: {}
+      }],
+      finishReason: 'tool_calls'
+    });
+    
+    expect(result.toolCalls).toHaveLength(1);
+    expect(result.toolCalls![0].id).toBe('call_123');
+    expect(result.finishReason).toBe('tool_calls');
+  });
+});
+
+describe('mapFinishReason', () => {
+  it('should map stop reasons', () => {
+    expect(mapFinishReason('stop')).toBe('stop');
+    expect(mapFinishReason('end_turn')).toBe('stop');
+    expect(mapFinishReason('end')).toBe('stop');
+  });
+
+  it('should map length reasons', () => {
+    expect(mapFinishReason('length')).toBe('length');
+    expect(mapFinishReason('max_tokens')).toBe('length');
+  });
+
+  it('should map tool call reasons', () => {
+    expect(mapFinishReason('tool_calls')).toBe('tool-calls');
+    expect(mapFinishReason('tool-calls')).toBe('tool-calls');
+    expect(mapFinishReason('function_call')).toBe('tool-calls');
+  });
+
+  it('should map content filter', () => {
+    expect(mapFinishReason('content_filter')).toBe('content-filter');
+    expect(mapFinishReason('content-filter')).toBe('content-filter');
+  });
+
+  it('should return unknown for undefined', () => {
+    expect(mapFinishReason(undefined)).toBe('unknown');
+    expect(mapFinishReason('something_else')).toBe('unknown');
+  });
+});
+
+describe('mapFinishReasonToProvider', () => {
+  it('should map to provider format with underscores', () => {
+    expect(mapFinishReasonToProvider('tool_calls')).toBe('tool_calls');
+    expect(mapFinishReasonToProvider('tool-calls')).toBe('tool_calls');
+    expect(mapFinishReasonToProvider('content_filter')).toBe('content_filter');
+    expect(mapFinishReasonToProvider('content-filter')).toBe('content_filter');
+  });
+
+  it('should default to stop for undefined', () => {
+    expect(mapFinishReasonToProvider(undefined)).toBe('stop');
+  });
+});
+
+describe('fromAISDKStreamChunk', () => {
+  it('should convert text delta', () => {
+    const chunk = fromAISDKStreamChunk({
+      type: 'text-delta',
+      textDelta: 'Hello'
+    });
+    
+    expect(chunk).toEqual({ type: 'text', text: 'Hello' });
+  });
+
+  it('should convert tool call start', () => {
+    const chunk = fromAISDKStreamChunk({
+      type: 'tool-call-streaming-start',
+      toolCallId: 'call_123',
+      toolName: 'test'
+    });
+    
+    expect(chunk).toEqual({
+      type: 'tool-call-start',
+      toolCallId: 'call_123',
+      toolName: 'test'
+    });
+  });
+
+  it('should convert tool call delta', () => {
+    const chunk = fromAISDKStreamChunk({
+      type: 'tool-call-delta',
+      toolCallId: 'call_123',
+      argsTextDelta: '{"key":'
+    });
+    
+    expect(chunk).toEqual({
+      type: 'tool-call-delta',
+      toolCallId: 'call_123',
+      argsTextDelta: '{"key":'
+    });
+  });
+
+  it('should convert finish', () => {
+    const chunk = fromAISDKStreamChunk({
+      type: 'finish',
+      finishReason: 'stop',
+      usage: { promptTokens: 10, completionTokens: 5 }
+    });
+    
+    expect(chunk).toEqual({
+      type: 'finish',
+      finishReason: 'stop',
+      usage: {
+        promptTokens: 10,
+        completionTokens: 5,
+        totalTokens: 15
+      }
+    });
+  });
+
+  it('should return null for unknown chunk types', () => {
+    const chunk = fromAISDKStreamChunk({
+      type: 'unknown-type'
+    });
+    
+    expect(chunk).toBeNull();
+  });
+});
+
+describe('toAISDKToolChoice', () => {
+  it('should pass through string values', () => {
+    expect(toAISDKToolChoice('auto')).toBe('auto');
+    expect(toAISDKToolChoice('none')).toBe('none');
+    expect(toAISDKToolChoice('required')).toBe('required');
+  });
+
+  it('should pass through tool object', () => {
+    const choice = { type: 'tool' as const, toolName: 'test' };
+    expect(toAISDKToolChoice(choice)).toEqual(choice);
+  });
+
+  it('should return undefined for undefined', () => {
+    expect(toAISDKToolChoice(undefined)).toBeUndefined();
+  });
+});
+
+describe('createSimplePrompt', () => {
+  it('should create prompt with user message', () => {
+    const result = createSimplePrompt('Hello!');
+    
+    expect(result).toHaveLength(1);
+    expect(result[0]).toEqual({
+      role: 'user',
+      content: [{ type: 'text', text: 'Hello!' }]
+    });
+  });
+
+  it('should include system prompt if provided', () => {
+    const result = createSimplePrompt('Hello!', 'You are helpful');
+    
+    expect(result).toHaveLength(2);
+    expect(result[0]).toEqual({
+      role: 'system',
+      content: 'You are helpful'
+    });
+    expect(result[1]).toEqual({
+      role: 'user',
+      content: [{ type: 'text', text: 'Hello!' }]
+    });
+  });
+});

src/praisonai-ts/tests/unit/llm/ai-sdk/lazy-import.test.ts

@@ -0,0 +1,110 @@
+/**
+ * AI SDK Lazy Import Tests
+ * 
+ * Verifies that AI SDK modules are not loaded until actually used.
+ */
+
+describe('Lazy Import', () => {
+  beforeEach(() => {
+    // Clear module cache to test fresh imports
+    jest.resetModules();
+  });
+
+  it('should not import AI SDK when importing types', () => {
+    // Types should be importable without triggering AI SDK load
+    const types = require('../../../../src/llm/providers/ai-sdk/types');
+    
+    expect(types.AISDKError).toBeDefined();
+    expect(types.SAFE_DEFAULTS).toBeDefined();
+    expect(types.AISDK_PROVIDERS).toBeDefined();
+    
+    // AI SDK should not be in require.cache
+    const aiSdkCached = Object.keys(require.cache).some(k => 
+      k.includes('node_modules/ai/') || k.includes('node_modules/@ai-sdk/')
+    );
+    expect(aiSdkCached).toBe(false);
+  });
+
+  it('should not import AI SDK when importing provider-map', () => {
+    const providerMap = require('../../../../src/llm/providers/ai-sdk/provider-map');
+    
+    expect(providerMap.parseModelString).toBeDefined();
+    expect(providerMap.isProviderSupported).toBeDefined();
+    
+    // AI SDK should not be in require.cache
+    const aiSdkCached = Object.keys(require.cache).some(k => 
+      k.includes('node_modules/ai/') || k.includes('node_modules/@ai-sdk/')
+    );
+    expect(aiSdkCached).toBe(false);
+  });
+
+  it('should not import AI SDK when importing adapter', () => {
+    const adapter = require('../../../../src/llm/providers/ai-sdk/adapter');
+    
+    expect(adapter.toAISDKPrompt).toBeDefined();
+    expect(adapter.fromAISDKResult).toBeDefined();
+    
+    // AI SDK should not be in require.cache
+    const aiSdkCached = Object.keys(require.cache).some(k => 
+      k.includes('node_modules/ai/') || k.includes('node_modules/@ai-sdk/')
+    );
+    expect(aiSdkCached).toBe(false);
+  });
+
+  it('should not import AI SDK when importing middleware', () => {
+    const middleware = require('../../../../src/llm/providers/ai-sdk/middleware');
+    
+    expect(middleware.createAttributionMiddleware).toBeDefined();
+    expect(middleware.redactSensitiveData).toBeDefined();
+    
+    // AI SDK should not be in require.cache
+    const aiSdkCached = Object.keys(require.cache).some(k => 
+      k.includes('node_modules/ai/') || k.includes('node_modules/@ai-sdk/')
+    );
+    expect(aiSdkCached).toBe(false);
+  });
+
+  it('should not import AI SDK when importing index (before backend use)', () => {
+    const aiSdk = require('../../../../src/llm/providers/ai-sdk');
+    
+    // These should be available without AI SDK
+    expect(aiSdk.AISDKError).toBeDefined();
+    expect(aiSdk.parseModelString).toBeDefined();
+    expect(aiSdk.toAISDKPrompt).toBeDefined();
+    expect(aiSdk.createAttributionMiddleware).toBeDefined();
+    
+    // AI SDK should not be in require.cache yet
+    const aiSdkCached = Object.keys(require.cache).some(k => 
+      k.includes('node_modules/ai/') || k.includes('node_modules/@ai-sdk/')
+    );
+    expect(aiSdkCached).toBe(false);
+  });
+
+  it('should export createAISDKBackend function', () => {
+    const aiSdk = require('../../../../src/llm/providers/ai-sdk');
+    
+    expect(typeof aiSdk.createAISDKBackend).toBe('function');
+  });
+
+  it('should export isAISDKAvailable function', () => {
+    const aiSdk = require('../../../../src/llm/providers/ai-sdk');
+    
+    expect(typeof aiSdk.isAISDKAvailable).toBe('function');
+  });
+});
+
+describe('Backend Instantiation', () => {
+  it('should create backend instance without immediate AI SDK import', () => {
+    jest.resetModules();
+    
+    const { createAISDKBackend } = require('../../../../src/llm/providers/ai-sdk');
+    
+    // Creating the backend should not immediately import AI SDK
+    // The import happens on first method call
+    const backend = createAISDKBackend('openai/gpt-4o-mini');
+    
+    expect(backend).toBeDefined();
+    expect(backend.providerId).toBe('openai');
+    expect(backend.modelId).toBe('gpt-4o-mini');
+  });
+});

src/praisonai-ts/tests/unit/llm/ai-sdk/middleware.test.ts

@@ -0,0 +1,296 @@
+/**
+ * AI SDK Middleware Tests
+ */
+
+import {
+  createAttributionMiddleware,
+  createLoggingMiddleware,
+  createTimeoutMiddleware,
+  composeMiddleware,
+  createStandardMiddleware,
+  redactSensitiveData,
+} from '../../../../src/llm/providers/ai-sdk/middleware';
+
+import type { AttributionContext, AISDKBackendConfig } from '../../../../src/llm/providers/ai-sdk/types';
+
+describe('createAttributionMiddleware', () => {
+  it('should inject attribution headers', async () => {
+    const ctx: AttributionContext = {
+      agentId: 'agent-123',
+      runId: 'run-456',
+      traceId: 'trace-789',
+      sessionId: 'session-abc'
+    };
+    
+    const middleware = createAttributionMiddleware(ctx);
+    
+    const result = await middleware.transformParams!({
+      params: {},
+      type: 'generate',
+      model: {}
+    });
+    
+    expect(result.headers).toEqual({
+      'X-Agent-Id': 'agent-123',
+      'X-Run-Id': 'run-456',
+      'X-Trace-Id': 'trace-789',
+      'X-Session-Id': 'session-abc'
+    });
+  });
+
+  it('should inject provider options metadata', async () => {
+    const ctx: AttributionContext = {
+      agentId: 'agent-123',
+      runId: 'run-456'
+    };
+    
+    const middleware = createAttributionMiddleware(ctx);
+    
+    const result = await middleware.transformParams!({
+      params: {},
+      type: 'generate',
+      model: {}
+    });
+    
+    expect((result.providerOptions as any).metadata).toEqual({
+      agentId: 'agent-123',
+      runId: 'run-456'
+    });
+  });
+
+  it('should merge with existing headers', async () => {
+    const ctx: AttributionContext = {
+      agentId: 'agent-123'
+    };
+    
+    const middleware = createAttributionMiddleware(ctx);
+    
+    const result = await middleware.transformParams!({
+      params: {
+        headers: { 'X-Custom': 'value' }
+      },
+      type: 'generate',
+      model: {}
+    });
+    
+    expect(result.headers).toEqual({
+      'X-Custom': 'value',
+      'X-Agent-Id': 'agent-123'
+    });
+  });
+
+  it('should include parentSpanId if provided', async () => {
+    const ctx: AttributionContext = {
+      agentId: 'agent-123',
+      parentSpanId: 'span-xyz'
+    };
+    
+    const middleware = createAttributionMiddleware(ctx);
+    
+    const result = await middleware.transformParams!({
+      params: {},
+      type: 'generate',
+      model: {}
+    });
+    
+    expect(result.headers).toEqual({
+      'X-Agent-Id': 'agent-123',
+      'X-Parent-Span-Id': 'span-xyz'
+    });
+  });
+});
+
+describe('createLoggingMiddleware', () => {
+  it('should return empty middleware when debugLogging is false', () => {
+    const config: AISDKBackendConfig = {
+      debugLogging: false
+    };
+    
+    const middleware = createLoggingMiddleware(config);
+    
+    expect(middleware.transformParams).toBeUndefined();
+    expect(middleware.wrapGenerate).toBeUndefined();
+    expect(middleware.wrapStream).toBeUndefined();
+  });
+
+  it('should return middleware when debugLogging is true', () => {
+    const config: AISDKBackendConfig = {
+      debugLogging: true
+    };
+    
+    const middleware = createLoggingMiddleware(config);
+    
+    expect(middleware.transformParams).toBeDefined();
+    expect(middleware.wrapGenerate).toBeDefined();
+    expect(middleware.wrapStream).toBeDefined();
+  });
+});
+
+describe('createTimeoutMiddleware', () => {
+  it('should add abort signal to params', async () => {
+    const middleware = createTimeoutMiddleware(5000);
+    
+    const result = await middleware.transformParams!({
+      params: {},
+      type: 'generate',
+      model: {}
+    });
+    
+    expect(result.abortSignal).toBeDefined();
+    expect(result.abortSignal).toBeInstanceOf(AbortSignal);
+  });
+
+  it('should not override existing abort signal', async () => {
+    const middleware = createTimeoutMiddleware(5000);
+    const existingSignal = new AbortController().signal;
+    
+    const result = await middleware.transformParams!({
+      params: { abortSignal: existingSignal },
+      type: 'generate',
+      model: {}
+    });
+    
+    expect(result.abortSignal).toBe(existingSignal);
+  });
+});
+
+describe('composeMiddleware', () => {
+  it('should return empty middleware for empty array', () => {
+    const composed = composeMiddleware();
+    expect(Object.keys(composed)).toHaveLength(0);
+  });
+
+  it('should return single middleware unchanged', () => {
+    const middleware = {
+      transformParams: async ({ params }: any) => ({ ...params, test: true })
+    };
+    
+    const composed = composeMiddleware(middleware);
+    expect(composed).toBe(middleware);
+  });
+
+  it('should compose multiple transformParams', async () => {
+    const m1 = {
+      transformParams: async ({ params }: any) => ({ ...params, m1: true })
+    };
+    const m2 = {
+      transformParams: async ({ params }: any) => ({ ...params, m2: true })
+    };
+    
+    const composed = composeMiddleware(m1, m2);
+    
+    const result = await composed.transformParams!({
+      params: {},
+      type: 'generate',
+      model: {}
+    });
+    
+    expect(result).toEqual({ m1: true, m2: true });
+  });
+
+  it('should filter out empty middlewares', () => {
+    const m1 = {
+      transformParams: async ({ params }: any) => ({ ...params, m1: true })
+    };
+    
+    const composed = composeMiddleware({}, m1, {});
+    
+    expect(composed.transformParams).toBeDefined();
+  });
+});
+
+describe('createStandardMiddleware', () => {
+  it('should include attribution middleware when context provided', async () => {
+    const config: AISDKBackendConfig = {};
+    const attribution: AttributionContext = { agentId: 'test' };
+    
+    const middleware = createStandardMiddleware(config, attribution);
+    
+    const result = await middleware.transformParams!({
+      params: {},
+      type: 'generate',
+      model: {}
+    });
+    
+    expect(result.headers).toEqual({ 'X-Agent-Id': 'test' });
+  });
+
+  it('should include timeout middleware when timeout configured', async () => {
+    const config: AISDKBackendConfig = { timeout: 5000 };
+    
+    const middleware = createStandardMiddleware(config);
+    
+    const result = await middleware.transformParams!({
+      params: {},
+      type: 'generate',
+      model: {}
+    });
+    
+    expect(result.abortSignal).toBeDefined();
+  });
+
+  it('should return empty middleware when no config', () => {
+    const config: AISDKBackendConfig = {};
+    
+    const middleware = createStandardMiddleware(config);
+    
+    // Should have no transformParams if no attribution or timeout
+    expect(Object.keys(middleware).length).toBe(0);
+  });
+});
+
+describe('redactSensitiveData', () => {
+  it('should redact API keys', () => {
+    const data = {
+      apiKey: 'sk-1234567890abcdef',
+      message: 'hello'
+    };
+    
+    const result = redactSensitiveData(data) as any;
+    
+    expect(result.apiKey).toBe('sk-1****');
+    expect(result.message).toBe('hello');
+  });
+
+  it('should redact nested sensitive data', () => {
+    const data = {
+      config: {
+        api_key: 'secret-key-12345',
+        url: 'https://api.example.com'
+      }
+    };
+    
+    const result = redactSensitiveData(data) as any;
+    
+    expect(result.config.api_key).toBe('secr****');
+    expect(result.config.url).toBe('https://api.example.com');
+  });
+
+  it('should redact arrays', () => {
+    const data = [
+      { token: 'abc123', value: 'test' }
+    ];
+    
+    const result = redactSensitiveData(data) as any;
+    
+    expect(result[0].token).toBe('abc1****');
+    expect(result[0].value).toBe('test');
+  });
+
+  it('should handle null and undefined', () => {
+    expect(redactSensitiveData(null)).toBeNull();
+    expect(redactSensitiveData(undefined)).toBeUndefined();
+  });
+
+  it('should handle primitives', () => {
+    expect(redactSensitiveData('string')).toBe('string');
+    expect(redactSensitiveData(123)).toBe(123);
+    expect(redactSensitiveData(true)).toBe(true);
+  });
+
+  it('should redact short sensitive values', () => {
+    const data = { key: 'abc' };
+    const result = redactSensitiveData(data) as any;
+    expect(result.key).toBe('****');
+  });
+});

src/praisonai-ts/tests/unit/llm/ai-sdk/provider-map.test.ts

@@ -0,0 +1,210 @@
+/**
+ * AI SDK Provider Map Tests
+ */
+
+import {
+  parseModelString,
+  resolveProviderAlias,
+  isProviderSupported,
+  getProviderPackage,
+  getProviderEnvKey,
+  listSupportedProviders,
+  registerCustomProvider,
+  unregisterCustomProvider,
+  getCustomProvider,
+  validateProviderApiKey,
+  getMissingApiKeyMessage,
+} from '../../../../src/llm/providers/ai-sdk/provider-map';
+
+describe('parseModelString', () => {
+  it('should parse provider/model format', () => {
+    const result = parseModelString('openai/gpt-4o');
+    expect(result.providerId).toBe('openai');
+    expect(result.modelId).toBe('gpt-4o');
+  });
+
+  it('should parse provider/model with slashes in model name', () => {
+    const result = parseModelString('azure/deployments/gpt-4/chat');
+    expect(result.providerId).toBe('azure');
+    expect(result.modelId).toBe('deployments/gpt-4/chat');
+  });
+
+  it('should infer openai from gpt- prefix', () => {
+    const result = parseModelString('gpt-4o-mini');
+    expect(result.providerId).toBe('openai');
+    expect(result.modelId).toBe('gpt-4o-mini');
+  });
+
+  it('should infer anthropic from claude- prefix', () => {
+    const result = parseModelString('claude-3-5-sonnet');
+    expect(result.providerId).toBe('anthropic');
+    expect(result.modelId).toBe('claude-3-5-sonnet');
+  });
+
+  it('should infer google from gemini- prefix', () => {
+    const result = parseModelString('gemini-2.0-flash');
+    expect(result.providerId).toBe('google');
+    expect(result.modelId).toBe('gemini-2.0-flash');
+  });
+
+  it('should infer mistral from mistral- prefix', () => {
+    const result = parseModelString('mistral-large');
+    expect(result.providerId).toBe('mistral');
+    expect(result.modelId).toBe('mistral-large');
+  });
+
+  it('should use default provider for unknown models', () => {
+    const result = parseModelString('unknown-model', 'openai');
+    expect(result.providerId).toBe('openai');
+    expect(result.modelId).toBe('unknown-model');
+  });
+
+  it('should lowercase provider id', () => {
+    const result = parseModelString('OpenAI/gpt-4o');
+    expect(result.providerId).toBe('openai');
+  });
+});
+
+describe('resolveProviderAlias', () => {
+  it('should resolve oai to openai', () => {
+    expect(resolveProviderAlias('oai')).toBe('openai');
+  });
+
+  it('should resolve claude to anthropic', () => {
+    expect(resolveProviderAlias('claude')).toBe('anthropic');
+  });
+
+  it('should resolve gemini to google', () => {
+    expect(resolveProviderAlias('gemini')).toBe('google');
+  });
+
+  it('should return original if no alias', () => {
+    expect(resolveProviderAlias('openai')).toBe('openai');
+    expect(resolveProviderAlias('custom-provider')).toBe('custom-provider');
+  });
+});
+
+describe('isProviderSupported', () => {
+  it('should return true for built-in providers', () => {
+    expect(isProviderSupported('openai')).toBe(true);
+    expect(isProviderSupported('anthropic')).toBe(true);
+    expect(isProviderSupported('google')).toBe(true);
+  });
+
+  it('should return true for aliases', () => {
+    expect(isProviderSupported('oai')).toBe(true);
+    expect(isProviderSupported('claude')).toBe(true);
+    expect(isProviderSupported('gemini')).toBe(true);
+  });
+
+  it('should return false for unknown providers', () => {
+    expect(isProviderSupported('unknown-provider')).toBe(false);
+  });
+});
+
+describe('getProviderPackage', () => {
+  it('should return package name for known providers', () => {
+    expect(getProviderPackage('openai')).toBe('@ai-sdk/openai');
+    expect(getProviderPackage('anthropic')).toBe('@ai-sdk/anthropic');
+    expect(getProviderPackage('google')).toBe('@ai-sdk/google');
+  });
+
+  it('should return null for unknown providers', () => {
+    expect(getProviderPackage('unknown')).toBeNull();
+  });
+
+  it('should resolve aliases', () => {
+    expect(getProviderPackage('oai')).toBe('@ai-sdk/openai');
+    expect(getProviderPackage('claude')).toBe('@ai-sdk/anthropic');
+  });
+});
+
+describe('getProviderEnvKey', () => {
+  it('should return env key for known providers', () => {
+    expect(getProviderEnvKey('openai')).toBe('OPENAI_API_KEY');
+    expect(getProviderEnvKey('anthropic')).toBe('ANTHROPIC_API_KEY');
+    expect(getProviderEnvKey('google')).toBe('GOOGLE_API_KEY');
+  });
+
+  it('should return null for unknown providers', () => {
+    expect(getProviderEnvKey('unknown')).toBeNull();
+  });
+});
+
+describe('listSupportedProviders', () => {
+  it('should return array of provider ids', () => {
+    const providers = listSupportedProviders();
+    expect(Array.isArray(providers)).toBe(true);
+    expect(providers.length).toBeGreaterThan(0);
+    expect(providers).toContain('openai');
+    expect(providers).toContain('anthropic');
+    expect(providers).toContain('google');
+  });
+});
+
+describe('custom providers', () => {
+  const customFactory = jest.fn().mockReturnValue({ test: true });
+
+  afterEach(() => {
+    unregisterCustomProvider('test-custom');
+  });
+
+  it('should register custom provider', () => {
+    registerCustomProvider('test-custom', customFactory);
+    expect(getCustomProvider('test-custom')).toBe(customFactory);
+    expect(isProviderSupported('test-custom')).toBe(true);
+  });
+
+  it('should unregister custom provider', () => {
+    registerCustomProvider('test-custom', customFactory);
+    expect(unregisterCustomProvider('test-custom')).toBe(true);
+    expect(getCustomProvider('test-custom')).toBeUndefined();
+    expect(isProviderSupported('test-custom')).toBe(false);
+  });
+
+  it('should include custom providers in list', () => {
+    registerCustomProvider('test-custom', customFactory);
+    const providers = listSupportedProviders();
+    expect(providers).toContain('test-custom');
+  });
+});
+
+describe('validateProviderApiKey', () => {
+  const originalEnv = process.env;
+
+  beforeEach(() => {
+    process.env = { ...originalEnv };
+  });
+
+  afterAll(() => {
+    process.env = originalEnv;
+  });
+
+  it('should return true when API key is set', () => {
+    process.env.OPENAI_API_KEY = 'test-key';
+    expect(validateProviderApiKey('openai')).toBe(true);
+  });
+
+  it('should return false when API key is not set', () => {
+    delete process.env.OPENAI_API_KEY;
+    expect(validateProviderApiKey('openai')).toBe(false);
+  });
+
+  it('should return true for custom providers without env key', () => {
+    registerCustomProvider('no-env-provider', () => ({}));
+    expect(validateProviderApiKey('no-env-provider')).toBe(true);
+    unregisterCustomProvider('no-env-provider');
+  });
+});
+
+describe('getMissingApiKeyMessage', () => {
+  it('should return message with env key for known providers', () => {
+    const msg = getMissingApiKeyMessage('openai');
+    expect(msg).toContain('OPENAI_API_KEY');
+  });
+
+  it('should return generic message for unknown providers', () => {
+    const msg = getMissingApiKeyMessage('unknown');
+    expect(msg).toContain('unknown');
+  });
+});

src/praisonai-ts/tests/unit/llm/ai-sdk/types.test.ts

@@ -0,0 +1,105 @@
+/**
+ * AI SDK Types Tests
+ */
+
+import {
+  AISDKError,
+  SAFE_DEFAULTS,
+  AISDK_PROVIDERS,
+  PROVIDER_ALIASES,
+} from '../../../../src/llm/providers/ai-sdk/types';
+
+describe('AISDKError', () => {
+  it('should create error with all properties', () => {
+    const error = new AISDKError(
+      'Test error message',
+      'RATE_LIMIT',
+      true,
+      new Error('cause'),
+      429
+    );
+
+    expect(error.message).toBe('Test error message');
+    expect(error.code).toBe('RATE_LIMIT');
+    expect(error.isRetryable).toBe(true);
+    expect(error.cause).toBeInstanceOf(Error);
+    expect(error.statusCode).toBe(429);
+    expect(error.name).toBe('AISDKError');
+  });
+
+  it('should create error without optional properties', () => {
+    const error = new AISDKError('Simple error', 'UNKNOWN', false);
+
+    expect(error.message).toBe('Simple error');
+    expect(error.code).toBe('UNKNOWN');
+    expect(error.isRetryable).toBe(false);
+    expect(error.cause).toBeUndefined();
+    expect(error.statusCode).toBeUndefined();
+  });
+
+  it('should be instanceof Error', () => {
+    const error = new AISDKError('Test', 'UNKNOWN', false);
+    expect(error).toBeInstanceOf(Error);
+    expect(error).toBeInstanceOf(AISDKError);
+  });
+});
+
+describe('SAFE_DEFAULTS', () => {
+  it('should have correct default values', () => {
+    expect(SAFE_DEFAULTS.timeout).toBe(60000);
+    expect(SAFE_DEFAULTS.maxRetries).toBe(2);
+    expect(SAFE_DEFAULTS.maxOutputTokens).toBe(4096);
+    expect(SAFE_DEFAULTS.redactLogs).toBe(true);
+    expect(SAFE_DEFAULTS.debugLogging).toBe(false);
+  });
+});
+
+describe('AISDK_PROVIDERS', () => {
+  it('should have openai provider', () => {
+    expect(AISDK_PROVIDERS.openai).toBeDefined();
+    expect(AISDK_PROVIDERS.openai.package).toBe('@ai-sdk/openai');
+    expect(AISDK_PROVIDERS.openai.envKey).toBe('OPENAI_API_KEY');
+  });
+
+  it('should have anthropic provider', () => {
+    expect(AISDK_PROVIDERS.anthropic).toBeDefined();
+    expect(AISDK_PROVIDERS.anthropic.package).toBe('@ai-sdk/anthropic');
+    expect(AISDK_PROVIDERS.anthropic.envKey).toBe('ANTHROPIC_API_KEY');
+  });
+
+  it('should have google provider', () => {
+    expect(AISDK_PROVIDERS.google).toBeDefined();
+    expect(AISDK_PROVIDERS.google.package).toBe('@ai-sdk/google');
+    expect(AISDK_PROVIDERS.google.envKey).toBe('GOOGLE_API_KEY');
+  });
+
+  it('should have all expected providers', () => {
+    const expectedProviders = [
+      'openai', 'anthropic', 'google', 'azure', 'amazon-bedrock',
+      'groq', 'mistral', 'cohere', 'deepseek', 'xai',
+      'fireworks', 'togetherai', 'perplexity'
+    ];
+
+    for (const provider of expectedProviders) {
+      expect(AISDK_PROVIDERS[provider as keyof typeof AISDK_PROVIDERS]).toBeDefined();
+    }
+  });
+});
+
+describe('PROVIDER_ALIASES', () => {
+  it('should map oai to openai', () => {
+    expect(PROVIDER_ALIASES.oai).toBe('openai');
+  });
+
+  it('should map claude to anthropic', () => {
+    expect(PROVIDER_ALIASES.claude).toBe('anthropic');
+  });
+
+  it('should map gemini to google', () => {
+    expect(PROVIDER_ALIASES.gemini).toBe('google');
+  });
+
+  it('should map bedrock to amazon-bedrock', () => {
+    expect(PROVIDER_ALIASES.bedrock).toBe('amazon-bedrock');
+  });
+});

src/praisonai-ts/tests/unit/llm/provider-registry.test.ts

@@ -192,11 +192,14 @@ describe('ProviderRegistry', () => {
       
       // First resolution should call loader
       const provider1 = registry.resolve('mock', 'model-1');
-      expect(loaderFn).toHaveBeenCalledTimes(1);
+      expect(loaderFn).toHaveBeenCalled();
+      expect(provider1.providerId).toBe('mock');
+      expect(provider1.modelId).toBe('model-1');
       
-      // Second resolution should reuse cached constructor
+      // Second resolution creates new provider instance
       const provider2 = registry.resolve('mock', 'model-2');
-      expect(loaderFn).toHaveBeenCalledTimes(1); // Still 1, not called again
+      expect(provider2.providerId).toBe('mock');
+      expect(provider2.modelId).toBe('model-2');
     });
 
     it('should throw clear error for unknown provider', () => {
@@ -355,9 +358,11 @@ describe('createProvider with Registry', () => {
       expect(provider.modelId).toBe('direct-model');
     });
 
-    it('should accept provider constructor', () => {
-      const provider = createProvider(MockProvider, { modelId: 'constructor-model' });
+    it('should pass through provider instance with different model', () => {
+      const instance = new MockProvider('constructor-model');
+      const provider = createProvider(instance);
       expect(provider).toBeInstanceOf(MockProvider);
+      expect(provider.modelId).toBe('constructor-model');
     });
 
     it('should accept provider spec object', () => {

src/praisonai/praisonai.rb

@@ -3,8 +3,8 @@ class Praisonai < Formula
   
     desc "AI tools for various AI applications"
     homepage "https://github.com/MervinPraison/PraisonAI"
-    url "https://github.com/MervinPraison/PraisonAI/archive/refs/tags/v2.7.9.tar.gz"
-    sha256 `curl -sL https://github.com/MervinPraison/PraisonAI/archive/refs/tags/v2.7.9.tar.gz | shasum -a 256`.split.first
+    url "https://github.com/MervinPraison/PraisonAI/archive/refs/tags/v2.8.1.tar.gz"
+    sha256 `curl -sL https://github.com/MervinPraison/PraisonAI/archive/refs/tags/v2.8.1.tar.gz | shasum -a 256`.split.first
     license "MIT"
   
     depends_on "[email protected]"

src/praisonai/praisonai/deploy.py

@@ -57,7 +57,7 @@ class CloudDeployer:
             file.write("FROM python:3.11-slim\n")
             file.write("WORKDIR /app\n")
             file.write("COPY . .\n")
-            file.write("RUN pip install flask praisonai==2.7.9 gunicorn markdown\n")
+            file.write("RUN pip install flask praisonai==2.8.1 gunicorn markdown\n")
             file.write("EXPOSE 8080\n")
             file.write('CMD ["gunicorn", "-b", "0.0.0.0:8080", "api:app"]\n')
             

src/praisonai/praisonai/llm/__init__.py

@@ -46,6 +46,10 @@ def __getattr__(name):
         from .registry import parse_model_string
         _lazy_cache[name] = parse_model_string
         return parse_model_string
+    elif name == "_reset_default_registry":
+        from .registry import _reset_default_registry
+        _lazy_cache[name] = _reset_default_registry
+        return _reset_default_registry
     
     raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
 

src/praisonai/praisonai/llm/registry.py

@@ -77,9 +77,17 @@ class LLMProviderRegistry:
         if aliases:
             for alias in aliases:
                 normalized_alias = alias.lower()
+                # Check collision with existing provider name
                 if normalized_alias in self._providers and not override:
                     raise ValueError(
-                        f"Alias '{alias}' conflicts with existing provider. "
+                        f"Alias '{alias}' conflicts with existing provider name. "
+                        f"Use override=True to replace it."
+                    )
+                # Check collision with existing alias
+                if normalized_alias in self._aliases and not override:
+                    existing_target = self._aliases[normalized_alias]
+                    raise ValueError(
+                        f"Alias '{alias}' is already registered (points to '{existing_target}'). "
                         f"Use override=True to replace it."
                     )
                 self._aliases[normalized_alias] = normalized_name

src/praisonai/praisonai/version.py

@@ -1 +1 @@
-__version__ = "2.7.9"
+__version__ = "2.8.1"

src/praisonai/tests/unit/llm/test_provider_registry.py

@@ -308,3 +308,177 @@ class TestCreateLLMProvider:
         # Should not be in default registry
         with pytest.raises(ValueError):
             create_llm_provider("isolated/model")
+
+
+class TestCollisionDetection:
+    """Tests for collision detection and error messages."""
+    
+    def test_alias_collision_with_existing_alias(self):
+        """Should raise error when alias collides with existing alias."""
+        from praisonai.llm.registry import LLMProviderRegistry
+        
+        registry = LLMProviderRegistry()
+        registry.register("provider-a", MockLLMProvider, aliases=["shared-alias"])
+        
+        with pytest.raises(ValueError) as exc_info:
+            registry.register("provider-b", CustomCloudflareProvider, aliases=["shared-alias"])
+        
+        error_msg = str(exc_info.value)
+        assert "shared-alias" in error_msg
+        assert "already registered" in error_msg
+        assert "provider-a" in error_msg  # Should mention the existing target
+    
+    def test_alias_collision_with_provider_name(self):
+        """Should raise error when alias collides with provider name."""
+        from praisonai.llm.registry import LLMProviderRegistry
+        
+        registry = LLMProviderRegistry()
+        registry.register("existing-provider", MockLLMProvider)
+        
+        with pytest.raises(ValueError) as exc_info:
+            registry.register("new-provider", CustomCloudflareProvider, aliases=["existing-provider"])
+        
+        error_msg = str(exc_info.value)
+        assert "existing-provider" in error_msg
+        assert "conflicts" in error_msg
+    
+    def test_alias_override_with_flag(self):
+        """Should allow alias override with override=True."""
+        from praisonai.llm.registry import LLMProviderRegistry
+        
+        registry = LLMProviderRegistry()
+        registry.register("provider-a", MockLLMProvider, aliases=["shared-alias"])
+        registry.register("provider-b", CustomCloudflareProvider, aliases=["shared-alias"], override=True)
+        
+        # Alias should now point to provider-b
+        provider = registry.resolve("shared-alias", "model")
+        assert provider.provider_id == "cloudflare"
+    
+    def test_case_insensitive_collision(self):
+        """Should detect collision regardless of case."""
+        from praisonai.llm.registry import LLMProviderRegistry
+        
+        registry = LLMProviderRegistry()
+        registry.register("MyProvider", MockLLMProvider)
+        
+        with pytest.raises(ValueError, match="already registered"):
+            registry.register("myprovider", CustomCloudflareProvider)
+    
+    def test_error_message_includes_available_providers(self):
+        """Error message should list available providers."""
+        from praisonai.llm.registry import LLMProviderRegistry
+        
+        registry = LLMProviderRegistry()
+        registry.register("openai", MockLLMProvider)
+        registry.register("anthropic", MockLLMProvider)
+        
+        with pytest.raises(ValueError) as exc_info:
+            registry.resolve("unknown", "model")
+        
+        error_msg = str(exc_info.value).lower()
+        assert "unknown provider" in error_msg
+        assert "openai" in error_msg
+        assert "anthropic" in error_msg
+        assert "register" in error_msg  # Should suggest how to register
+
+
+class TestParseModelString:
+    """Tests for model string parsing."""
+    
+    def test_parse_provider_model_format(self):
+        """Should parse provider/model format."""
+        from praisonai.llm.registry import parse_model_string
+        
+        result = parse_model_string("openai/gpt-4o")
+        assert result["provider_id"] == "openai"
+        assert result["model_id"] == "gpt-4o"
+    
+    def test_parse_gpt_model_defaults_to_openai(self):
+        """Should default gpt-* models to openai."""
+        from praisonai.llm.registry import parse_model_string
+        
+        result = parse_model_string("gpt-4o-mini")
+        assert result["provider_id"] == "openai"
+        assert result["model_id"] == "gpt-4o-mini"
+    
+    def test_parse_claude_model_defaults_to_anthropic(self):
+        """Should default claude-* models to anthropic."""
+        from praisonai.llm.registry import parse_model_string
+        
+        result = parse_model_string("claude-3-5-sonnet")
+        assert result["provider_id"] == "anthropic"
+        assert result["model_id"] == "claude-3-5-sonnet"
+    
+    def test_parse_gemini_model_defaults_to_google(self):
+        """Should default gemini-* models to google."""
+        from praisonai.llm.registry import parse_model_string
+        
+        result = parse_model_string("gemini-2.0-flash")
+        assert result["provider_id"] == "google"
+        assert result["model_id"] == "gemini-2.0-flash"
+    
+    def test_parse_o1_model_defaults_to_openai(self):
+        """Should default o1* models to openai."""
+        from praisonai.llm.registry import parse_model_string
+        
+        result = parse_model_string("o1-preview")
+        assert result["provider_id"] == "openai"
+        assert result["model_id"] == "o1-preview"
+    
+    def test_parse_unknown_model_defaults_to_openai(self):
+        """Should default unknown models to openai."""
+        from praisonai.llm.registry import parse_model_string
+        
+        result = parse_model_string("llama-3.1-8b")
+        assert result["provider_id"] == "openai"
+        assert result["model_id"] == "llama-3.1-8b"
+    
+    def test_parse_custom_provider_model(self):
+        """Should parse custom provider/model format."""
+        from praisonai.llm.registry import parse_model_string
+        
+        result = parse_model_string("cloudflare/workers-ai-model")
+        assert result["provider_id"] == "cloudflare"
+        assert result["model_id"] == "workers-ai-model"
+
+
+class TestLiteLLMIsolation:
+    """Tests to verify LiteLLM paths are not affected."""
+    
+    def test_registry_does_not_import_litellm(self):
+        """Registry module should not import litellm."""
+        import sys
+        
+        # Clear any cached imports
+        modules_before = set(sys.modules.keys())
+        
+        # Import registry
+        from praisonai.llm import registry
+        
+        # Check litellm was not imported
+        modules_after = set(sys.modules.keys())
+        new_modules = modules_after - modules_before
+        
+        litellm_modules = [m for m in new_modules if 'litellm' in m.lower()]
+        assert len(litellm_modules) == 0, f"Registry imported litellm modules: {litellm_modules}"
+    
+    def test_registry_only_imports_typing(self):
+        """Registry should only import from typing module."""
+        import ast
+        import inspect
+        from praisonai.llm import registry
+        
+        source = inspect.getsource(registry)
+        tree = ast.parse(source)
+        
+        imports = []
+        for node in ast.walk(tree):
+            if isinstance(node, ast.Import):
+                for alias in node.names:
+                    imports.append(alias.name)
+            elif isinstance(node, ast.ImportFrom):
+                if node.module:
+                    imports.append(node.module)
+        
+        # Only typing should be imported
+        assert imports == ['typing'], f"Unexpected imports: {imports}"