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Cai

Tool Nov 3, 2026

An MIT-licensed macOS action layer with reusable commands, agent-authored proposals and a Claude Code-powered Today work brief.

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A frame from the Cai project demo shows a text selection and its floating Summarize action panel on a Mac.
Frame 15 of the project-published demo in Cai's tagged README. It illustrates Cai's selection-action interface, not the new Today screen or an AITrending test. Source: Cai contributors
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Cai is a native macOS action layer that opens with Option-C. Users can run reusable prompts, shell scripts and connector actions, or let an MCP-compatible coding agent propose new actions for approval. Its tagged README specifies macOS 14 or later, Accessibility permission and an application running outside App Sandbox. The built-in MLX AI engine requires Apple Silicon.

Version 1.7.1 makes Today accessible after version 1.7.0 accidentally hid its interface in development-only builds. Today runs an installed, signed-in Claude Code with a dedicated skill to read selected connected tools and produce a ranked work brief. The list and user state stay on the Mac, while reading uses Claude Code and connected services. That feature is distinct from Cai’s locally executed reusable actions.