Snapshot is an internal tool developed by the Ionic Framework team to ensure that updates to their components do not inadvertently affect other parts of the framework. By running end-to-end tests and capturing screenshots for each command, Snapshot assigns a unique ID to each test session, enabling the team to visually track changes and compare them against a Master Snapshot. This tool utilizes Protractor for executing tests across multiple platforms, such as Android, iOS, and Windows, and helps in identifying unintended changes by highlighting differences in bright purple. Snapshot also allows for configuration to focus on specific components when needed, making it a versatile tool for maintaining the integrity of the framework. By serving as a visual safety net, Snapshot helps the Ionic team catch bugs and ensure thorough testing before new code is released, ultimately enhancing the reliability of apps built using their framework.