Changelog

All notable changes to the TradingAgents project will be documented in this file.

[Unreleased] - 2026-01-09

API Key Verification: Added verify_google_key.py script to isolate and verify Google API Key functionality for embeddings.
Environment Management: Added load_dotenv to cli/main.py and verify_google_key.py to ensure .env variables are correctly loaded.
Start Script Enhancements: Updated start.sh to check for GOOGLE_API_KEY existence and warn the user.
Debug Logging: Added temporary debug logging (commented out) in memory.py for API key verification.

Embedding Model Error: Fixed BadRequestError / 404 Not Found when using Google (Gemini) provider by explicitly setting text-embedding-004 and using the Google-compatible OpenAI endpoint (generativelanguage.googleapis.com).
Data Fetching Failure: Resolved RuntimeError: All vendor implementations failed for method 'get_fundamentals' by implementing a fallback to yfinance in tradingagents/dataflows/y_finance.py and registering it in interface.py.
Report Saving Crash: Fixed TypeError: write() argument must be str, not list in cli/main.py by converting structured list content to string before writing to files.
API Rate Limiting: Added max_retries handling (exponential backoff) to both ChatGoogleGenerativeAI (10 retries) and OpenAI embedding client (5 retries) to robustly handle 429 RESOURCE_EXHAUSTED errors.
Payload Size Error: Implemented input truncation (max 9000 chars) in memory.py's get_embedding method to prevent massive payloads from crashing the API.

LLM Configuration: Updated tradingagents/default_config.py and cli/utils.py to use valid Gemini model names (e.g., gemini-1.5-flash, gemini-1.5-pro) and gemini-pro.
Vendor Configuration: Updated default fundamental_data vendor to "alpha_vantage, yfinance" to ensure fallback availability.