Changelog

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

[Unreleased] - 2026-01-09

Blindfire Protocol Activated: Fully integrated TickerAnonymizer into all analyst agents (Market, News, Fundamentals, Social) and data tools. The LLM now only sees "ASSET_XXX" in prompts, preventing data contamination.
Anonymization Middleware: Implemented transparent request interception in core_stock_tools.py and other tool files to deanonymize inputs and anonymize outputs automatically.
State Persistence: Added auto-persistence to TickerAnonymizer (ticker_map.json) to ensure consistent ticker mapping across isolated agent and tool instances.
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).
Import Errors: Fixed NameError: name 'tool' is not defined by restoring langchain_core imports in data tools that were accidentally removed during Blindfire integration.
Payload Size Error: Implemented input truncation (max 9000 chars) in memory.py.
Display Layer De-Anonymization: Added deanonymize_text to TickerAnonymizer and patched cli/main.py to reverse-map "ASSET_XXX" to real company names in the final report, effectively resolving "[Company Name]" placeholders for the user while keeping the internal system blind.

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.