fix(cli): preserve missing API key diagnostic

src/together/lib/cli/__init__.py

@@ -169,7 +169,7 @@ def block_requests_for_api_key(_: httpx.Request) -> None:
                     "[red]x[/red] api key missing.\n\nThe api key must be set either by passing --api-key to the command or by setting the TOGETHER_API_KEY environment variable",
                 )
                 console.print("You can find your api key at https://api.together.ai/settings/api-keys")
-                sys.exit(1)
+                raise CliDiagnosticExit("Together API key missing")
 
             client._client.event_hooks["request"].append(block_requests_for_api_key)
         else:

tests/cli/test_command_telemetry.py

@@ -91,6 +91,30 @@ def _exit_1() -> None:
     assert "error" in failed
 
 
+@pytest.mark.usefixtures("isolated_cli_config")
+@pytest.mark.asyncio
+async def test_missing_api_key_preserves_diagnostic(
+    track_cli_capture: list[tuple[CliTrackingEvents, dict[str, Any]]],
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    from together.lib.cli import launcher
+
+    monkeypatch.delenv("TOGETHER_API_KEY", raising=False)
+    monkeypatch.setenv("TOGETHER_DISABLE_VERSION_CHECK", "1")
+
+    with pytest.raises(SystemExit) as exc_info:
+        await launcher("endpoints", "list", project_id="project")
+
+    assert exc_info.value.code == 1
+    assert _event_kinds(track_cli_capture) == [
+        CliTrackingEvents.CommandStarted.value,
+        CliTrackingEvents.CommandFailed.value,
+    ]
+    failed = track_cli_capture[1][1]
+    assert failed["command"] == "endpoints list"
+    assert failed["error"] == "Together API key missing"
+
+
 @pytest.mark.usefixtures("isolated_cli_config")
 @pytest.mark.asyncio
 async def test_interactive_missing_required_argument_preserves_diagnostic(