news corpus for a local scorer + agent panel v2 + dashboard read-only (2026-09-17); books byte-identical

Agent panel v2: personas return p_win anchored to the book base rates with a
code-computed decision context; verdict = equal-weight mean (verdict_source
"mean"); only the macro persona runs live (agent_panel.personas ["macro"]);
prompt version and exact payloads logged; offline replay harness
scripts/panel_replay.py; base-rate table agent_panel_base_rates.json
(scripts/build_panel_base_rates.py). Backtester `strategy` column now carries
the generator's own stamp (label-only; five reference books re-pinned, all
62 other columns identical).

News corpus (after evaluating the owner's ML-NEWS scikit model against
DeepSeek: golden set 39/78 vs 78/78, out-of-sample agreement 64% against a
90% self-agreement ceiling; verdict: fallback only, not a replacement):
- NewsSentiment.xau_score + archive column xau_score keep DeepSeek's gold
  score for every headline (930 of the first 1,546 DeepSeek rows had none);
  an existing newsdata.db gains the column in place on first open
- headlines naming no tracked currency are scored and archived
  (currencies_json []) but never returned to the platform
- _apply_llm_sentiment sends every new headline in its cycle, 25 per call;
  a failed call ends the cycle's sending

Dashboard publisher never writes a database: main() calls
app_config.set_db_writes_for_process(False), honoured by signal_log_enabled()
and news_archive_enabled() (owner decision: the bot is the single writer).

Test suite: the hermetic app config now points both writers at a
suite-private temp dir — the RSS fixture tests were writing fixture
headlines into the real logs/newsdata.db — with a Module 32 test pinning it.
529 tests.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

dashboard_publisher.py

@@ -18,6 +18,10 @@ immune to anything on the web side):
   * The only shared-code dependency beyond the standard signal path is
     the additive `NewsEngine.get_week_events` accessor, which no
     production signal path calls.
+  * Never writes a database. It is not always running, so the Telegram
+    bot is the single writer of `signals.db` and `newsdata.db`; main()
+    switches every SQLite writer off for this process
+    (`app_config.set_db_writes_for_process`, owner decision 2026-09-17).
 
 Scheduling: every M15/H1/H4 boundary is also an M5 boundary (all
 intervals are multiples of 5, anchored to UTC midnight), so one
@@ -58,7 +62,8 @@ from typing import Dict, List, Optional
 import pandas as pd
 
 from agent_panel import attach_panel
-from app_config import get_app_config, violent_watch_enabled
+from app_config import (get_app_config, set_db_writes_for_process,
+                        violent_watch_enabled)
 from config import PlatformConfig, Timeframe, XAUUSD
 from main import report_to_dict
 from news_engine import NewsEngine
@@ -553,6 +558,14 @@ def main(argv=None) -> None:
     args = ap.parse_args(argv)
 
     _setup_logging()
+    # This process never writes a database. It is not always running, so
+    # the Telegram bot is the single writer of signals.db and newsdata.db
+    # (owner decision 2026-09-17). The switch is process-wide and beats
+    # config.json / env; set here in main(), not at import, so importing
+    # the module (the test suite does) leaves every other writer on.
+    set_db_writes_for_process(False)
+    logger.info("database writes disabled for this process "
+                "(the Telegram bot is the only writer)")
     os.makedirs(args.out, exist_ok=True)
     pub = DashboardPublisher(args.out)
     pub.install_static()