June 2025 monthly summary for huggingface/smolagents: Stabilized SpeechToTextTool initialization to prevent runtime errors when a model argument is supplied. Implemented a bug fix in __new__ to remove *args and **kwargs, ensuring super().__new__(cls) receives only the class object, and added a targeted unit test (test_initialization) that validates initialization with a model argument. This work reduces production incidents related to tool instantiation and improves reliability for downstream speech-to-text workflows. Overall impact: higher runtime stability, smoother model integration, and clearer test coverage. Technologies demonstrated include Python object-oriented design, unit testing, and commit-driven development in a CI-enabled workflow.