diff --git a/tests/run_agent/test_860_dedup.py b/tests/run_agent/test_860_dedup.py
index 8036d856a..89f4c010b 100644
--- a/tests/run_agent/test_860_dedup.py
+++ b/tests/run_agent/test_860_dedup.py
@@ -29,6 +29,7 @@ class TestFlushDeduplication:
         with patch.dict(os.environ, {"OPENROUTER_API_KEY": "test-key"}):
             from run_agent import AIAgent
             agent = AIAgent(
+                api_key="test-key",
                 base_url="https://openrouter.ai/api/v1",
                 model="test/model",
                 quiet_mode=True,
@@ -272,6 +273,7 @@ class TestFlushIdxInit:
         with patch.dict(os.environ, {"OPENROUTER_API_KEY": "test-key"}):
             from run_agent import AIAgent
             agent = AIAgent(
+                api_key="test-key",
                 base_url="https://openrouter.ai/api/v1",
                 model="test/model",
                 quiet_mode=True,
@@ -285,6 +287,7 @@ class TestFlushIdxInit:
         with patch.dict(os.environ, {"OPENROUTER_API_KEY": "test-key"}):
             from run_agent import AIAgent
             agent = AIAgent(
+                api_key="test-key",
                 base_url="https://openrouter.ai/api/v1",
                 model="test/model",
                 quiet_mode=True,
diff --git a/tests/run_agent/test_compression_persistence.py b/tests/run_agent/test_compression_persistence.py
index 9a7ce0410..46ab963d4 100644
--- a/tests/run_agent/test_compression_persistence.py
+++ b/tests/run_agent/test_compression_persistence.py
@@ -37,6 +37,7 @@ class TestFlushAfterCompression:
         with patch.dict(os.environ, {"OPENROUTER_API_KEY": "test-key"}):
             from run_agent import AIAgent
             agent = AIAgent(
+                api_key="test-key",
                 base_url="https://openrouter.ai/api/v1",
                 model="test/model",
                 quiet_mode=True,
diff --git a/tests/run_agent/test_create_openai_client_kwargs_isolation.py b/tests/run_agent/test_create_openai_client_kwargs_isolation.py
index 33b0e9297..98b7ff480 100644
--- a/tests/run_agent/test_create_openai_client_kwargs_isolation.py
+++ b/tests/run_agent/test_create_openai_client_kwargs_isolation.py
@@ -19,6 +19,7 @@ from run_agent import AIAgent
 def test_create_openai_client_does_not_mutate_input_kwargs(mock_openai):
     mock_openai.return_value = MagicMock()
     agent = AIAgent(
+        api_key="test-key",
         base_url="https://openrouter.ai/api/v1",
         model="test/model",
         quiet_mode=True,
diff --git a/tests/run_agent/test_create_openai_client_reuse.py b/tests/run_agent/test_create_openai_client_reuse.py
index 5656656bd..0eac567ae 100644
--- a/tests/run_agent/test_create_openai_client_reuse.py
+++ b/tests/run_agent/test_create_openai_client_reuse.py
@@ -23,6 +23,7 @@ from run_agent import AIAgent
 
 def _make_agent():
     return AIAgent(
+        api_key="test-key",
         base_url="https://openrouter.ai/api/v1",
         model="test/model",
         quiet_mode=True,
diff --git a/tests/run_agent/test_provider_parity.py b/tests/run_agent/test_provider_parity.py
index 100d845e0..bdbe89f3a 100644
--- a/tests/run_agent/test_provider_parity.py
+++ b/tests/run_agent/test_provider_parity.py
@@ -61,6 +61,8 @@ def _make_agent(monkeypatch, provider, api_mode="chat_completions", base_url="ht
     if model:
         kwargs["model"] = model
     base_url="https://openrouter.ai/api/v1",
+    api_key="test-key",
+    base_url="https://openrouter.ai/api/v1",
     return AIAgent(**kwargs)
 
 
diff --git a/tests/run_agent/test_streaming.py b/tests/run_agent/test_streaming.py
index 31b2589ab..73a987202 100644
--- a/tests/run_agent/test_streaming.py
+++ b/tests/run_agent/test_streaming.py
@@ -80,6 +80,7 @@ class TestStreamingAccumulator:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -121,6 +122,7 @@ class TestStreamingAccumulator:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -169,6 +171,7 @@ class TestStreamingAccumulator:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -208,6 +211,7 @@ class TestStreamingAccumulator:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -249,6 +253,7 @@ class TestStreamingCallbacks:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -282,6 +287,7 @@ class TestStreamingCallbacks:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -314,6 +320,7 @@ class TestStreamingCallbacks:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -353,6 +360,7 @@ class TestStreamingCallbacks:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -389,6 +397,7 @@ class TestStreamingCallbacks:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -437,6 +446,7 @@ class TestStreamingFallback:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -465,6 +475,7 @@ class TestStreamingFallback:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -488,6 +499,7 @@ class TestStreamingFallback:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -512,6 +524,7 @@ class TestStreamingFallback:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -555,6 +568,7 @@ class TestStreamingFallback:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -591,6 +605,7 @@ class TestStreamingFallback:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -634,6 +649,7 @@ class TestReasoningStreaming:
         mock_create.return_value = mock_client
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -662,6 +678,7 @@ class TestHasStreamConsumers:
     def test_no_consumers(self):
         from run_agent import AIAgent
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -673,6 +690,7 @@ class TestHasStreamConsumers:
     def test_delta_callback_set(self):
         from run_agent import AIAgent
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -685,6 +703,7 @@ class TestHasStreamConsumers:
     def test_stream_callback_set(self):
         from run_agent import AIAgent
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -707,6 +726,7 @@ class TestCodexStreamCallbacks:
         deltas = []
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -749,6 +769,7 @@ class TestCodexStreamCallbacks:
         from run_agent import AIAgent
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -813,6 +834,7 @@ class TestCodexStreamCallbacks:
         )
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -832,6 +854,7 @@ class TestCodexStreamCallbacks:
         from run_agent import AIAgent
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,
@@ -884,6 +907,7 @@ class TestAnthropicStreamCallbacks:
         from run_agent import AIAgent
 
         agent = AIAgent(
+            api_key="test-key",
             base_url="https://openrouter.ai/api/v1",
             model="test/model",
             quiet_mode=True,