feat(config): expose news parameters in _ENV_OVERRIDES

Author: loulanyue

.env.example

@@ -53,6 +53,10 @@ NVIDIA_API_KEY=
 #TRADINGAGENTS_MAX_DEBATE_ROUNDS=1
 #TRADINGAGENTS_MAX_RISK_ROUNDS=1
 #TRADINGAGENTS_CHECKPOINT_ENABLED=false
+# News fetching limits and lookback window
+#TRADINGAGENTS_NEWS_ARTICLE_LIMIT=20
+#TRADINGAGENTS_GLOBAL_NEWS_ARTICLE_LIMIT=10
+#TRADINGAGENTS_GLOBAL_NEWS_LOOKBACK_DAYS=7
 # Sampling temperature (lower = less run-to-run variation on models that
 # honor it). Unset leaves each provider at its default. See the README
 # "Reproducibility" note — no setting makes LLM output fully deterministic.

tests/test_env_overrides.py

@@ -49,11 +49,20 @@ def test_int_coercion(monkeypatch):
         monkeypatch,
         TRADINGAGENTS_MAX_DEBATE_ROUNDS="3",
         TRADINGAGENTS_MAX_RISK_ROUNDS="2",
+        TRADINGAGENTS_NEWS_ARTICLE_LIMIT="35",
+        TRADINGAGENTS_GLOBAL_NEWS_ARTICLE_LIMIT="15",
+        TRADINGAGENTS_GLOBAL_NEWS_LOOKBACK_DAYS="14",
     )
     assert dc.DEFAULT_CONFIG["max_debate_rounds"] == 3
     assert isinstance(dc.DEFAULT_CONFIG["max_debate_rounds"], int)
     assert dc.DEFAULT_CONFIG["max_risk_discuss_rounds"] == 2
     assert isinstance(dc.DEFAULT_CONFIG["max_risk_discuss_rounds"], int)
+    assert dc.DEFAULT_CONFIG["news_article_limit"] == 35
+    assert isinstance(dc.DEFAULT_CONFIG["news_article_limit"], int)
+    assert dc.DEFAULT_CONFIG["global_news_article_limit"] == 15
+    assert isinstance(dc.DEFAULT_CONFIG["global_news_article_limit"], int)
+    assert dc.DEFAULT_CONFIG["global_news_lookback_days"] == 14
+    assert isinstance(dc.DEFAULT_CONFIG["global_news_lookback_days"], int)
 
 
 @pytest.mark.parametrize(

tradingagents/default_config.py

@@ -19,6 +19,10 @@
     "TRADINGAGENTS_BENCHMARK_TICKER":     "benchmark_ticker",
     "TRADINGAGENTS_TEMPERATURE":          "temperature",
     "TRADINGAGENTS_LLM_MAX_RETRIES":      "llm_max_retries",
+    # News fetching parameters
+    "TRADINGAGENTS_NEWS_ARTICLE_LIMIT":        "news_article_limit",
+    "TRADINGAGENTS_GLOBAL_NEWS_ARTICLE_LIMIT": "global_news_article_limit",
+    "TRADINGAGENTS_GLOBAL_NEWS_LOOKBACK_DAYS": "global_news_lookback_days",
     # Provider-specific reasoning/thinking knobs (None = each provider's own
     # default). Settable here for non-interactive runs; the CLI also offers an
     # interactive choice, which is skipped when the matching var is set.