style: format all files with prettier

plugins/llm-application-dev/commands/langchain-agent.md

@@ -24,6 +24,7 @@ Build sophisticated AI agent system for: $ARGUMENTS
 ## Essential Architecture
 
 ### LangGraph State Management
+
 ```python
 from langgraph.graph import StateGraph, MessagesState, START, END
 from langgraph.prebuilt import create_react_agent
@@ -35,6 +36,7 @@ class AgentState(TypedDict):
 ```
 
 ### Model & Embeddings
+
 - **Primary LLM**: Claude Sonnet 4.5 (`claude-sonnet-4-5`)
 - **Embeddings**: Voyage AI (`voyage-3-large`) - officially recommended by Anthropic for Claude
 - **Specialized**: `voyage-code-3` (code), `voyage-finance-2` (finance), `voyage-law-2` (legal)
@@ -84,6 +86,7 @@ base_retriever = vectorstore.as_retriever(
 ```
 
 ### Advanced RAG Patterns
+
 - **HyDE**: Generate hypothetical documents for better retrieval
 - **RAG Fusion**: Multiple query perspectives for comprehensive results
 - **Reranking**: Use Cohere Rerank for relevance optimization
@@ -117,6 +120,7 @@ tool = StructuredTool.from_function(
 ## Production Deployment
 
 ### FastAPI Server with Streaming
+
 ```python
 from fastapi import FastAPI
 from fastapi.responses import StreamingResponse
@@ -132,12 +136,14 @@ async def invoke_agent(request: AgentRequest):
 ```
 
 ### Monitoring & Observability
+
 - **LangSmith**: Trace all agent executions
 - **Prometheus**: Track metrics (requests, latency, errors)
 - **Structured Logging**: Use `structlog` for consistent logs
 - **Health Checks**: Validate LLM, tools, memory, and external services
 
 ### Optimization Strategies
+
 - **Caching**: Redis for response caching with TTL
 - **Connection Pooling**: Reuse vector DB connections
 - **Load Balancing**: Multiple agent workers with round-robin routing
@@ -165,6 +171,7 @@ results = await evaluate(
 ## Key Patterns
 
 ### State Graph Pattern
+
 ```python
 builder = StateGraph(MessagesState)
 builder.add_node("node1", node1_func)
@@ -176,6 +183,7 @@ agent = builder.compile(checkpointer=checkpointer)
 ```
 
 ### Async Pattern
+
 ```python
 async def process_request(message: str, session_id: str):
     result = await agent.ainvoke(
@@ -186,6 +194,7 @@ async def process_request(message: str, session_id: str):
 ```
 
 ### Error Handling Pattern
+
 ```python
 from tenacity import retry, stop_after_attempt, wait_exponential