112 lines
4.6 KiB
Markdown
112 lines
4.6 KiB
Markdown
---
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phase: 01-tradier-data-layer
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plan: 02
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subsystem: dataflows
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tags: [tradier, options, vendor-routing, langchain-tools, pytest]
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requires:
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- phase: 01-tradier-data-layer plan 01
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provides: tradier.py (OptionsContract, OptionsChain, get_options_chain, get_options_expirations), tradier_common.py (TradierRateLimitError, make_tradier_request)
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provides:
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- Tradier registered in vendor routing (VENDOR_LIST, TOOLS_CATEGORIES, VENDOR_METHODS)
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- options_chain category in DEFAULT_CONFIG data_vendors
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- LangChain @tool functions for options chain and expirations
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- Comprehensive unit test suite (25 tests) covering DATA-01 through DATA-05 and DATA-08
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affects: [02-greeks-math, 03-vol-analysis, 04-options-agents]
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tech-stack:
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added: [pytest>=8.0]
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patterns: [options vendor registration, @tool functions for options data, pytest test classes with mock fixtures]
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key-files:
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created:
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- tradingagents/agents/utils/options_tools.py
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- tests/conftest.py
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- tests/unit/data/test_tradier.py
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modified:
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- tradingagents/dataflows/interface.py
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- tradingagents/default_config.py
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- .env.example
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key-decisions:
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- "Tradier is the sole vendor for options_chain category (no fallback vendor yet)"
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- "Options @tool functions follow core_stock_tools.py pattern exactly with route_to_vendor"
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- "get_options_expirations tool returns comma-separated string (list-to-string conversion for LLM readability)"
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patterns-established:
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- "Options tool pattern: @tool functions in options_tools.py delegate to route_to_vendor with method name"
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- "Test isolation pattern: clear_options_cache() in setup_method/teardown_method for session cache tests"
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- "Mock fixture pattern: conftest.py with relative-date mock responses (never stale)"
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requirements-completed: [DATA-08]
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duration: 4min
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completed: 2026-03-29
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---
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# Phase 01 Plan 02: Vendor Integration, Tools & Tests Summary
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**Tradier vendor routing registration with LangChain @tool functions and 25-test comprehensive unit suite covering all Phase 1 DATA requirements**
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## Performance
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- **Duration:** 4 min
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- **Started:** 2026-03-29T23:31:41Z
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- **Completed:** 2026-03-29T23:36:31Z
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- **Tasks:** 2
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- **Files modified:** 9
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## Accomplishments
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- Tradier fully registered in vendor routing: VENDOR_LIST, TOOLS_CATEGORIES (options_chain), VENDOR_METHODS (get_options_chain, get_options_expirations)
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- route_to_vendor now catches both AlphaVantageRateLimitError and TradierRateLimitError for fallback
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- Two @tool functions (get_options_chain, get_options_expirations) in options_tools.py following core_stock_tools.py pattern
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- 25 passing unit tests across 10 test classes covering DATA-01 through DATA-05, DATA-08, plus edge cases
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## Task Commits
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Each task was committed atomically:
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1. **Task 1: Register Tradier in vendor routing and create options tools** - `18e1e99` (feat)
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2. **Task 2: Create comprehensive unit tests for all Phase 1 requirements** - `a249334` (test)
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## Files Created/Modified
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- `tradingagents/dataflows/interface.py` - Added Tradier imports, options_chain category, vendor methods, TradierRateLimitError catch
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- `tradingagents/default_config.py` - Added options_chain: tradier to data_vendors
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- `tradingagents/agents/utils/options_tools.py` - LangChain @tool functions for options chain and expirations
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- `.env.example` - Added TRADIER_API_KEY and TRADIER_SANDBOX documentation
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- `tests/conftest.py` - Shared mock fixtures with relative-date responses
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- `tests/unit/data/test_tradier.py` - 25 tests across 10 classes
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- `tests/unit/__init__.py` - Package init
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- `tests/unit/data/__init__.py` - Package init
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- `pyproject.toml` / `uv.lock` - Added pytest>=8.0 as dev dependency
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## Decisions Made
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- Tradier is the sole vendor for the options_chain category -- no fallback vendor exists yet (yfinance has no options Greeks)
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- get_options_expirations @tool converts list result to comma-separated string for LLM readability
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- Test fixtures use relative dates (_iso_days_out) so DTE assertions never go stale
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## Deviations from Plan
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None - plan executed exactly as written.
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## Issues Encountered
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None.
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## User Setup Required
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None - no external service configuration required. TRADIER_API_KEY documented in .env.example.
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## Next Phase Readiness
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- Phase 1 (Tradier Data Layer) is complete: data retrieval, vendor routing, @tool functions, and comprehensive tests all in place
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- Phases 2, 3, and 4 can proceed in parallel (all depend only on the Tradier data layer)
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- Options agents in Phase 4+ can bind options_tools.py tools using the established ChatPromptTemplate + bind_tools pattern
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## Self-Check: PASSED
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All created files verified present. All commit hashes found in git log.
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---
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*Phase: 01-tradier-data-layer*
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*Completed: 2026-03-29*
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