Previously, profit calculations compared portfolio value to the previous
day's final value. This caused trades to appear as losses since buying
stocks decreases cash and increases stock value equally (net zero change).
Now profit calculations compare to the start-of-day portfolio value
(action_id=0 for current date), which accurately reflects gains/losses
from price movements and trading decisions.
Changes:
- agent_tools/tool_trade.py: Fixed profit calc in _buy_impl() and _sell_impl()
- tools/price_tools.py: Fixed profit calc in add_no_trade_record_to_db()
Test: test_profit_calculation_accuracy now passes
The get_db_path() function requires a base_db_path argument
to properly resolve PROD vs DEV database paths. Updated all
calls to pass "data/jobs.db" as the base path.
Changes:
- agent_tools/tool_trade.py: Fix 3 occurrences (lines 33, 113, 236)
- tools/price_tools.py: Fix 2 occurrences in new database functions
- Remove unused get_db_path import from tool_trade.py
This fixes TypeError when running simulations:
get_db_path() missing 1 required positional argument: 'base_db_path'
The get_db_connection() function internally calls get_db_path()
to resolve the correct database path based on DEPLOYMENT_MODE.
This commit migrates the system to database-only position storage,
eliminating file-based position.jsonl dependencies and fixing
ContextInjector initialization timing issues.
Key Changes:
1. ContextInjector Lifecycle Refactor:
- Remove ContextInjector creation from BaseAgent.__init__()
- Add BaseAgent.set_context() method for post-initialization injection
- Update ModelDayExecutor to create ContextInjector with correct trading day date
- Ensures ContextInjector receives actual trading date instead of init_date
- Includes session_id injection for proper database linking
2. Database Position Functions:
- Implement get_today_init_position_from_db() for querying previous positions
- Implement add_no_trade_record_to_db() for no-trade day handling
- Both functions query SQLite directly (positions + holdings tables)
- Handle first trading day case with initial cash return
- Include comprehensive error handling and logging
3. System Integration:
- Update get_agent_system_prompt() to use database queries
- Update _handle_trading_result() to write no-trade records to database
- Remove dependencies on position.jsonl file reading/writing
- Use deployment_config for automatic prod/dev database resolution
Data Flow:
- ModelDayExecutor creates runtime config and trading session
- Agent initialized without context
- ContextInjector created with (signature, date, job_id, session_id)
- Context injected via set_context()
- System prompt queries database for yesterday's position
- Trade tools write directly to database
- No-trade handler creates database records
Fixes:
- ContextInjector no longer receives None values
- No FileNotFoundError for missing position.jsonl files
- Database is single source of truth for position tracking
- Session linking maintained across all position records
Design: docs/plans/2025-02-11-database-position-tracking-design.md
