openai-assistants

Complete guide for OpenAI's Assistants API v2: stateful conversational AI with built-in tools(Code Interpreter, File Search, Function Calling), vector stores for RAG (up to 10,000 files),thread/run lifecycle management, and streaming patterns. Both Node.js SDK and fetch approaches.⚠️ DEPRECATION NOTICE: OpenAI plans to sunset Assistants API in H1 2026 in favor of Responses API.This skill remains valuable for existing apps and migration planning.Use when: building stateful chatbots with OpenAI, implementing RAG with vector stores, executingPython code with Code Interpreter, using file search for document Q&A, managing conversation threads,streaming assistant responses, or encountering errors like "thread already has active run", vectorstore indexing delays, run polling timeouts, or file upload issues.Keywords: openai assistants, assistants api, openai threads, openai runs, code interpreter assistant,file search openai, vector store openai, openai rag, assistant streaming, thread persistence,state