Files
agents/plugins/llm-application-dev
Seth Hobson 086557180a chore: update model references to Claude 4.6 and GPT-5.2
- Claude Opus 4.5 → Opus 4.6, Claude Sonnet 4.5 → Sonnet 4.6 (Haiku stays 4.5)
- Update claude-sonnet-4-5 model IDs to claude-sonnet-4-6 in code examples
- Update SWE-bench stat from 80.9% to 80.8% for Opus 4.6
- Update GPT refs: GPT-5 → GPT-5.2, GPT-4o → gpt-5.2, GPT-4o-mini → GPT-5-mini
- Fix GPT-5.2-mini → GPT-5-mini (correct model name per OpenAI)
- Bump marketplace to v1.5.2 and affected plugin versions
2026-02-19 14:03:46 -05:00
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LLM Application Development Plugin for Claude Code

Build production-ready LLM applications, advanced RAG systems, and intelligent agents with modern AI patterns.

Version 2.0.0 Highlights

  • LangGraph Integration: Updated from deprecated LangChain patterns to LangGraph StateGraph workflows
  • Modern Model Support: Claude Opus 4.6/Sonnet 4.6/Haiku 4.5 and GPT-5.2/GPT-5-mini
  • Voyage AI Embeddings: Recommended embedding models for Claude applications
  • Structured Outputs: Pydantic-based structured output patterns

Features

Core Capabilities

  • RAG Systems: Production retrieval-augmented generation with hybrid search
  • Vector Search: Pinecone, Qdrant, Weaviate, Milvus, pgvector optimization
  • Agent Architectures: LangGraph-based agents with memory and tool use
  • Prompt Engineering: Advanced prompting techniques with model-specific optimization

Key Technologies

  • LangChain 1.x / LangGraph for agent workflows
  • Voyage AI, OpenAI, and open-source embedding models
  • HNSW, IVF, and Product Quantization index strategies
  • Async patterns with checkpointers for durable execution

Agents

Agent Description
ai-engineer Production-grade LLM applications, RAG systems, and agent architectures
prompt-engineer Advanced prompting techniques, constitutional AI, and model optimization
vector-database-engineer Vector search implementation, embedding strategies, and semantic retrieval

Skills

Skill Description
langchain-architecture LangGraph StateGraph patterns, memory, and tool integration
rag-implementation RAG systems with hybrid search and reranking
llm-evaluation Evaluation frameworks for LLM applications
prompt-engineering-patterns Chain-of-thought, few-shot, and structured outputs
embedding-strategies Embedding model selection and optimization
similarity-search-patterns Vector similarity search implementation
vector-index-tuning HNSW, IVF, and quantization optimization
hybrid-search-implementation Vector + keyword search fusion

Commands

Command Description
/llm-application-dev:langchain-agent Create LangGraph-based agent
/llm-application-dev:ai-assistant Build AI assistant application
/llm-application-dev:prompt-optimize Optimize prompts for production

Installation

/plugin install llm-application-dev

Requirements

  • LangChain >= 1.2.0
  • LangGraph >= 0.3.0
  • Python 3.11+

Changelog

2.0.0 (January 2026)

  • Breaking: Migrated from LangChain 0.x to LangChain 1.x/LangGraph
  • Breaking: Updated model references to Claude 4.6 and GPT-5.2
  • Added Voyage AI as primary embedding recommendation for Claude apps
  • Added LangGraph StateGraph patterns replacing deprecated initialize_agent()
  • Added structured outputs with Pydantic
  • Added async patterns with checkpointers
  • Fixed security issue: replaced unsafe code execution with AST-based safe math evaluation
  • Updated hybrid search with modern Pinecone client API

1.2.2

  • Minor bug fixes and documentation updates

License

MIT License - See the plugin configuration for details.