fix(cli): keep a tier's configured thinking setting when the main provider has none (#1440)

- the run config takes reasoning effort, thinking level and Claude effort from the selections only when one was chosen

cli/run.py

@@ -83,10 +83,11 @@ def _build_run_config(selections: dict, checkpoint: bool | None) -> dict:
     config["deep_think_llm"] = selections["deep_think_llm"]
     config["backend_url"] = selections["backend_url"]
     config["llm_provider"] = selections["llm_provider"].lower()
-    # Provider-specific thinking configuration
-    config["google_thinking_level"] = selections.get("google_thinking_level")
-    config["openai_reasoning_effort"] = selections.get("openai_reasoning_effort")
-    config["anthropic_effort"] = selections.get("anthropic_effort")
+    # Provider-specific thinking configuration. Only the main provider's is
+    # asked; a tier on another provider keeps its configured value (#1440).
+    for key in ("google_thinking_level", "openai_reasoning_effort", "anthropic_effort"):
+        if selections.get(key) is not None:
+            config[key] = selections[key]
     config["output_language"] = selections.get("output_language", "English")
     # --checkpoint/--no-checkpoint overrides only when explicitly given; omitting
     # the flag preserves TRADINGAGENTS_CHECKPOINT_ENABLED / the default (#976).

tests/test_cli_config_precedence.py

@@ -105,3 +105,15 @@ def test_a_half_set_round_count_says_which_value_won(capsys, monkeypatch):
 
     assert config["max_risk_discuss_rounds"] == 5
     assert any("TRADINGAGENTS_MAX_DEBATE_ROUNDS" in line for line in printed), printed
+
+
+@pytest.mark.unit
+def test_a_tier_s_thinking_setting_survives_a_main_provider_that_has_none(monkeypatch):
+    """A run on Google with an OpenAI tier (#1440): the run's selections carry no
+    OpenAI reasoning effort, so the configured one must reach that tier."""
+    monkeypatch.setitem(cli_run.DEFAULT_CONFIG, "openai_reasoning_effort", "high")
+    monkeypatch.setitem(cli_run.DEFAULT_CONFIG, "anthropic_effort", "low")
+    cfg = cli_run._build_run_config({**SELECTIONS, "llm_provider": "google", "google_thinking_level": "high"},
+                                    checkpoint=None)
+    assert (cfg["openai_reasoning_effort"], cfg["anthropic_effort"], cfg["google_thinking_level"]) == \
+        ("high", "low", "high")