Haku

It provides an on‑device model that intercepts browser and macOS interactions for AI agents such as Claude Code, Cursor, or any MCP‑compatible agent, filtering the page content to only the elements the agent needs. By reducing the amount of HTML and UI data sent to the model, it cuts token usage by roughly 85 % compared with tools that dump entire pages.

The system caches searches, notes, and code lookups locally, allowing subsequent tasks to reuse prior results without additional tokens. It also supports semantic code search across indexed repositories and can automate a wide range of native macOS applications—mail, calendar, notes, browsers, and many others—through a unified interface.

Designed for developers and power users who run AI‑driven workflows on their Mac, it runs fully locally, is Apple‑notarized, and does not transmit telemetry. The software is offered as an experimental, one‑time‑purchase license after a free trial.