feat: add Pydantic AI integration example

- Add new Pydantic AI integration with Anthropic instrumentor
- Demonstrate structured outputs with Pydantic models
- Include agent tools/functions with @agent.tool decorator
- Dynamic system prompts with @agent.system_prompt
- Dependency injection with RunContext
- Streaming responses with async iteration
- Type-safe agent development patterns
- Update README with Pydantic AI setup and features

Author: codehruv

CHANGELOG.md

@@ -18,6 +18,13 @@
   - Added required criteria field to Metric model test data
 
 ### Added
+- **📚 Examples: Pydantic AI Integration**
+  - New Pydantic AI integration with Anthropic instrumentor
+  - Structured outputs with Pydantic models for type safety
+  - Agent tools/functions with @agent.tool decorator
+  - Dynamic system prompts with @agent.system_prompt
+  - Dependency injection with RunContext
+  - Streaming responses with async iteration
 - **📚 Examples: LangGraph Integration**
   - New LangGraph integration example with state graph workflows
   - Sequential node execution with conditional routing

docs/changelog.rst

@@ -17,6 +17,14 @@ Latest Release Notes
 Current Version Highlights
 ~~~~~~~~~~~~~~~~~~~~~~~~~~
 
+**📚 NEW: Pydantic AI Integration Example**
+
+* **Type-Safe Agents**: Complete Pydantic AI integration with structured outputs
+* **Agent Tools**: Demonstrates @agent.tool decorator for function calling
+* **Dynamic Prompts**: System prompt generation with @agent.system_prompt
+* **Dependency Injection**: RunContext for passing dependencies to agents
+* **Streaming Support**: Async iteration for streaming responses
+
 **📚 NEW: LangGraph Integration Example**
 
 * **State Graph Workflows**: Complete LangGraph integration with sequential node execution

docs/reference/index.rst

@@ -48,7 +48,7 @@ Core Capabilities
 - **Multi-Provider Support**: Simultaneous tracing across multiple LLM providers  
 - **Token Tracking**: Automatic token usage monitoring and cost tracking
 - **Rich Metadata**: Detailed span attributes for AI operations
-- **Framework Examples**: Integration examples for OpenAI Agents (SwarmAgent), AWS Strands (TracerProvider pattern), Google ADK (async support), LangGraph (state workflows), and more
+- **Framework Examples**: Integration examples for OpenAI Agents (SwarmAgent), AWS Strands (TracerProvider pattern), Google ADK (async support), LangGraph (state workflows), Pydantic AI (type-safe agents), and more
 
 **Performance & Reliability**:
 

examples/integrations/README.md

@@ -32,6 +32,7 @@ Comprehensive examples for popular AI agent frameworks:
 - **[`semantic_kernel_integration.py`](semantic_kernel_integration.py)** - Microsoft Semantic Kernel with OpenAI instrumentor (✅ agents, plugins, function calling, streaming)
 - **[`strands_integration.py`](strands_integration.py)** - AWS Strands with TracerProvider pattern (✅ Bedrock models, streaming, tools)
 - **[`langgraph_integration.py`](langgraph_integration.py)** - LangGraph workflows with LangChain instrumentor (✅ state graphs, conditional routing, agent graphs)
+- **[`pydantic_ai_integration.py`](pydantic_ai_integration.py)** - Pydantic AI agents with Anthropic instrumentor (✅ structured outputs, tools, dependencies, streaming)
 - **[`openinference_google_adk_example.py`](openinference_google_adk_example.py)** - Google ADK with workflow agents (✅ sequential, parallel, loop workflows)
 
 ## 🚀 **Quick Start**
@@ -115,6 +116,23 @@ python integrations/langgraph_integration.py
 - ✅ Automatic LangChain call tracing
 - ✅ State management across nodes
 
+#### Pydantic AI
+```bash
+pip install pydantic-ai openinference-instrumentation-anthropic
+export ANTHROPIC_API_KEY=your-anthropic-key
+export HH_API_KEY=your-honeyhive-key
+python integrations/pydantic_ai_integration.py
+```
+
+**Features demonstrated:**
+- ✅ Basic agent with instructions
+- ✅ Structured outputs with Pydantic models
+- ✅ Agent tools/functions with @agent.tool
+- ✅ Dynamic system prompts with @agent.system_prompt
+- ✅ Dependency injection with RunContext
+- ✅ Streaming responses with async iteration
+- ✅ Type-safe agent development
+
 #### Google ADK
 ```bash
 pip install google-adk openinference-instrumentation-google-adk