Obsidian

Obsidian is a versatile note-taking and knowledge management application that allows users to create, link, and organize their thoughts and information. It emphasizes local data storage, privacy, and extensibility through a rich plugin ecosystem. Users can sync their notes across multiple devices and publish them as online wikis or knowledge bases.

Obsidian is primarily a knowledge base and note-taking application, not an AI-driven desktop assistant that observes workflows and provides automation suggestions. While it offers extensive customization through plugins, some of which might touch upon automation or AI, its core functionality does not align with the 'must-have' features of workflow observation, pattern analysis, actionable suggestions, or task automation as described for 'Second Cursor'. The closest it comes is through community plugins that might offer some form of 'macro recording' or 'smart templates', but these are not core to the product's stated purpose of optimizing workflows through observation and AI-driven suggestions.