docs/ai_tool_usage.md

AI Tool Usage Log

• LangChain + OpenAI GPT-3.5: Used to generate market summary responses via RetrievalQA.
• FAISS + HuggingFaceEmbeddings: For semantic document search on financial notes.
• yfinance: Fetched real-time stock prices and % change for TSM, SSNLF.
• BeautifulSoup: Scraped latest headlines from MarketWatch.
• SpeechRecognition + pyttsx3: Converted user voice input to text and generated audio output.