Every surface is both a human UI and an agent tool surface — nothing is reachable by one and not the other. Built by Voxel Labs, and run every day as the system we manage our own work on.
Your AI agents don't just suggest — they act. They create tasks, triage your inbox, resolve blockers, and update status. 19 MCP tools give AI full access to your workspace.
Inbox to Backlog to Active to Focus to Doing Now. Every task narrows through a deliberate progression. Context fields surface exactly what you can do right now.
Cmd+K command palette. Vim-style navigation. Every action has a shortcut. Built for Superhuman and Linear users who think at the speed of keystrokes.
Not a chatbot bolted onto a task manager. Cortana was built from day one for AI agents to be first-class participants in your workflow.
Tell your AI agent what you need to accomplish. It breaks it into tasks with the right dependencies, assigns them to projects, sets priorities, and creates the full subtask hierarchy.
Tasks flow in from email, Slack, meetings, and quick captures. Your AI agents process the inbox — categorizing, prioritizing, scoping, and routing tasks to the right projects automatically.
Cortana exposes its entire workspace through the Model Context Protocol. Claude, Cursor, custom bots — any AI agent can create tasks, manage projects, and run your workflow through 19 powerful tools.
Every task narrows from capture to completion through deliberate stages. Always know what to do next.
Explicit, sequential, and inherited blocking. The system computes which tasks are truly actionable — no guesswork.
List, board, and timeline. Every view supports the SAU filter — showing only the smallest actionable units you can work on now.
Filter by energy level, location, time available, and task type. The system knows what you can do based on where you are and how you feel.
Break any task into subtasks, infinitely deep. Sequential or parallel modes. Completion cascades automatically through the tree.
There's no separate integrations layer. Each surface below is both something a person works in and something an agent calls — there is no second, lesser API bolted on the side.
It isn't open to sign-ups yet. If you want a walkthrough of the architecture — the data model, the MCP layer, the agent loop — get in touch and we'll show you the real thing.