Privacy Policy

Last updated: July 9, 2026

Kuroko is a macOS app and MCP server that runs entirely on your Mac. It has no user accounts, no analytics, no advertising and no third-party tracking SDKs. We operate no server that Kuroko talks to at runtime.

What stays on your Mac

• The action log. Every MCP tool call an agent makes (tool name, target app, selector, duration, result) is appended to a local file — ~/Library/Application Support/kuroko/actions.jsonl — so you can audit what agents did. Text typed through input_text is recorded by length only, never by content, so credentials and other typed text never hit disk.
• Settings and policy. Your app policy (allow/denylist, write-tool switch) and preferences are stored locally.
• License state. License keys are verified locally with an embedded public key. Activation works offline; nothing is sent anywhere to validate a key.

Deleting the app and its support folder removes all of this.

What the agent sees

Kuroko’s purpose is to expose app UI to your AI agent: accessibility trees, element values and window screenshots of the apps you point it at. That data goes to the MCP host you connected (for example Claude Code or Claude Desktop) over a local stdio pipe — Kuroko itself opens no network connections and listens on no ports. How your agent host handles that data is governed by that host’s own privacy policy, so connect Kuroko only from agent sessions you trust.

Kuroko refuses to type into password (secure text) fields, and its built-in policy blocks sensitive apps such as Terminal, Keychain Access, 1Password and System Settings by default.

macOS permissions

Kuroko uses the Accessibility permission to read and drive app UI, and the Screen Recording permission only for window screenshots. Both are granted and revoked by you in System Settings at any time. Kuroko never captures your screen outside an explicit screenshot tool call from your agent.

Information we collect

None automatically. The only personal information we ever receive is what you send us yourself — for example your email address when you request a trial or purchase a license. We use it solely to issue your license key and respond to you, and never share or sell it. Payments, when offered, are handled by a payment processor; we do not receive your card details.

Changes to this policy

If this policy changes, the updated version will be posted on this page with a new “Last updated” date.

Contact

Questions about privacy? Email kuroko@klimakov.me.