End-to-end map: external services → providers/news layer → signal core
(engine + factory + aggregator) → SignalReport → four delivery surfaces,
plus the backtester replaying the same core. Regenerate with
venv/bin/python docs/architecture_diagram.py after architecture changes.
Claude-Session: https://claude.ai/code/session_01Aq1jZ6jBsBdEC2xT3u46SA
Owner-locked /news replies with the existing get_pair_sentiment() net
score (XAU mean - USD mean, -1..+1) and its label; a caveat line marks
the no-headlines case so a feed outage can't read as neutral. Fetch runs
in the shared executor with a placeholder-then-edit reply. Display-only:
news still never gates signals. Registered in handler block, command
menu, help text, docstring, and user guide; 3 new builder tests (299).
Claude-Session: https://claude.ai/code/session_017975c1TufZ3xRYAq8iWTCS
Three display/warning-only upgrades to the news engine, all behind the
existing keyword path as fallback — signals are never gated on LLM
output (event_risk_caps_signals / sentiment_affects_signals stay False
per the 2026-07 audit; backtester use_news=False untouched):
- Headline sentiment: one batched call per 600s cache window (capped at
25 new headlines, sha1-cached so repeats are never re-sent) overrides
the keyword scores per currency with the gold-inverse doctrine encoded
in the prompt.
- Release surprises: get_event_risk_level's description now says which
way the print pulls GOLD ("— gold bearish: strong jobs lift yields"),
fixing the documented numeric-only gap; risk level and windows
unchanged.
- Market summary: 1-2 sentence macro blurb on SignalReport.news_summary,
rendered in Telegram alerts (📰) and the CLI (🧠).
New llm_client.py: requests-only OpenAI-compatible client (no SDK), one
attempt per call, UTC-day request cap, singleton so the cap survives
per-scan NewsEngine reconstruction. Config: deepseek block in
config.json + DEEPSEEK_API_KEY env; absent key = fully inert.
Live-measured API behavior baked in: V4-Flash is a hybrid thinking model
— requests send thinking:disabled (reasoning otherwise blew the timeout
and could exhaust max_tokens before the answer); prompts are static
module constants so DeepSeek's prefix cache prices repeat calls at the
cache-hit rate; scores use compact [s, xau] pairs; timeout 12s.
Tests 273 → 286 (new Module 19 + deepseek config tests).
Claude-Session: https://claude.ai/code/session_01Nsd8HcrV67GbCZXxZEn1Ma
- Delete back-compat shims data_provider.py / oanda_provider.py;
test_all.py now imports providers.* directly (ForexDataProvider name
retired; the two shim-only tests removed, 268 -> 266 tests)
- Delete backtest/research/calendar_store.py (no importer, no entry
point); config.py audit comment reworded
- Delete executed plan doc (2026-07-21 centralized-config) and the two
unbuildable guide PDFs; HTML guides remain the source of truth
- OANDA_MIGRATION_ROADMAP.md status header corrected: phases 1-2
shipped 2026-07-28, feed is live on Oanda; phases 3-6 still unbuilt
- Branches deleted locally + on both remotes: oanda_demo (merged),
web-dashboard, eurusd-modular, reversal-exit-alert (owner-approved
permanent deletion); July stash dropped
Claude-Session: https://claude.ai/code/session_019zR58p8ACW1oJ5QXVUZ5es
Two printable guides in docs/ (HTML source + weasyprint-rendered A4
PDFs): a trader-facing user guide (signal anatomy, trail management,
M5/M15/H1 comparison from the 12mo books, expectations, commands) and
a plain-language beginner edition (glossary, worked sizing example,
step-by-step trailing-stop walkthrough, H1-first guidance).
Harwinder Sekhon