diff --git a/artemis/config/agent.py b/artemis/config/agent.py
index 6fb00d398..ef7f39178 100644
--- a/artemis/config/agent.py
+++ b/artemis/config/agent.py
@@ -1005,9 +1005,18 @@ def _parse_bool(var_name: str) -> bool | None:
         if out_env is not None:
             data.setdefault("outputter", {})["enabled"] = out_env
 
-        vid_rec_env = _parse_bool("ARTEMIS_VIDEO_RECORDING_ENABLED") or _parse_bool(
-            "ARTEMIS_WITH_VIDEO_RECORDING_TOOLS"
-        )
+        # `a or b` would turn an explicit False into None when the other alias
+        # is unset, silently dropping the override. Keep "any True wins" for
+        # conflicting aliases, but let a lone False through.
+        vid_rec_values = [
+            v
+            for v in (
+                _parse_bool("ARTEMIS_VIDEO_RECORDING_ENABLED"),
+                _parse_bool("ARTEMIS_WITH_VIDEO_RECORDING_TOOLS"),
+            )
+            if v is not None
+        ]
+        vid_rec_env = any(vid_rec_values) if vid_rec_values else None
         if vid_rec_env is not None:
             data.setdefault("video_analyzer", {})["enabled"] = vid_rec_env
             data.setdefault("pro", {}).setdefault("video_analyzer", {})["enabled"] = vid_rec_env
diff --git a/tests/unit/test_config_package.py b/tests/unit/test_config_package.py
index 5b8c56ad8..28aad33b2 100644
--- a/tests/unit/test_config_package.py
+++ b/tests/unit/test_config_package.py
@@ -668,6 +668,34 @@ def test_agent_config_environment_variable_overrides(monkeypatch):
     assert cfg.pro.video_analyzer.enable_ledger is False
 
 
+@pytest.mark.parametrize(
+    ("recording", "alias", "expected"),
+    [
+        ("false", None, False),
+        (None, "false", False),
+        ("false", "false", False),
+        ("true", None, True),
+        (None, "true", True),
+        ("true", "false", True),
+        ("false", "true", True),
+    ],
+)
+def test_video_recording_environment_override(monkeypatch, recording, alias, expected):
+    """An explicit false must disable video even when the other alias is unset."""
+    from artemis.config.agent import load_agent_config
+
+    monkeypatch.delenv("ARTEMIS_VIDEO_RECORDING_ENABLED", raising=False)
+    monkeypatch.delenv("ARTEMIS_WITH_VIDEO_RECORDING_TOOLS", raising=False)
+    if recording is not None:
+        monkeypatch.setenv("ARTEMIS_VIDEO_RECORDING_ENABLED", recording)
+    if alias is not None:
+        monkeypatch.setenv("ARTEMIS_WITH_VIDEO_RECORDING_TOOLS", alias)
+
+    cfg = load_agent_config()
+    assert cfg.video_analyzer.enabled is expected
+    assert cfg.pro.video_analyzer.enabled is expected
+
+
 def test_consolidated_workspace_and_admin_paths():
     """Verify consolidated workspace and admin paths exported from artemis.config."""
     from artemis.config import (