Night's Watch Support

Effective 15 July 2026 · Version 1.0

Privacy policy

Night's Watch processes text locally so you can review sensitive spans before inserting text into supported AI tools. The extension does not send your pasted text to the developer.

What the extension handles

Night's Watch temporarily handles text that you actively paste into an editor on a supported destination. That text may contain user-generated content, website or form content, personal communications, identifiers, authentication information, financial information, health information, or other sensitive material.

How the text is used

The packaged MiniLM model, tokenizer, deterministic rules, and ONNX Runtime Web assets process the text in memory on your device. The only purpose is to detect candidate sensitive spans, show a local Mask-or-Keep preview, and insert the result you approve into the same editor.

Collection, transmission, and sharing

Destination-page boundary

A supported destination is part of the trust boundary. Browser page JavaScript may observe the original paste event before document-level interception. Night's Watch therefore does not claim clipboard secrecy or protection from a malicious destination page.

Retention

The extension does not intentionally retain pasted text after the in-memory scan and review lifecycle ends. It has no account system, remote content store, extension-storage path, or content analytics.

Permissions and supported sites

The extension runs only on the HTTPS AI-tool destinations declared in its manifest. It does not request browsing-history, clipboard, cookie, location, camera, microphone, or background permissions. Site access is used only for user-initiated paste review and reviewed insertion.

Failure behavior

If the local scanner, model, or WebAssembly runtime cannot complete, the original paste is restored unchanged so the user's workflow is not blocked. Privacy protection is unavailable for that failed paste.

Chrome Web Store Limited Use

The use of information received from Chrome APIs will adhere to the Chrome Web Store User Data Policy, including the Limited Use requirements. User data is used only to provide the extension's disclosed single purpose.

Changes

Material changes to data handling will be disclosed before a release that introduces them. The effective date and policy version above identify the current policy.

Contact

Report privacy or security concerns through the Night's Watch extension issue tracker. Do not include real secrets or personal data in a public issue.