This notice covers the ZeroH Disclosure plugin, this website and its waitlist. It is written to be read, not skimmed past.
Last updated 19 October 2026
In short: the free plugin sends us nothing. This website sets no cookies. It counts visits with privacy-friendly analytics that we run ourselves, without cookies and without tracking you across days or sites. If you join the waitlist, we keep your email address and the products you picked, only to tell you when they open, and we delete them when you ask.
Who we are
Blade Labs Holdings Private Limited (“Blade Labs”, “we”) decides how this information is used. Write to hello@bladelabs.io about anything on this page; a person answers.
The ZeroH Disclosure plugin
It runs on your computer. Your secrets, the token map, the vault and your receipts stay on your disk, under ~/.zeroh (%LOCALAPPDATA%\ZeroH on Windows).
It sends nothing to Blade Labs: no account, no telemetry, no crash reports. Its only network traffic is Claude Code's own requests to your model provider, which pass through its local proxy, and the commands you run.
A missed-value report stays on your computer. It holds the value's type, length and where it appeared, never the value. Sending one to us is planned as a separate choice you make each time.
Claude Code and your model provider handle your conversation under their own terms. The plugin reduces what they receive; it does not change those terms.
This website
No cookies.
We count visits with Umami, which we host ourselves on Microsoft Azure in the North Europe region, at analytics.bladelabs.io. Nothing is stored on your device and no third party receives the data.
For each page view we record the page, the referring site, your browser, operating system, device type, screen size, language and approximate location (country, region and city, derived from your IP address). Your IP address itself is not stored.
To count unique visitors, Umami combines your IP address and browser details with a random value that changes every day, and keeps only the resulting code. We cannot recognise you on another day or on another website.
We keep these statistics for as long as they are useful to us, and they are only for our own understanding of how the site is used. We don't sell or share them.
We rely on our legitimate interest in understanding how this website is used and improving it (Article 6(1)(f) GDPR). Because the statistics cannot identify you or follow you across days or sites, we believe this does not override your rights; you can object at any time by writing to us or using the opt-outs below.
If your browser sends “Do Not Track”, nothing is recorded. Blocking the script analytics.bladelabs.io/script.js also turns it off.
Your browser remembers your light or dark choice, and on the test guide which shell tab you picked, in its own storage. It never leaves your browser, and clearing your site data removes it.
The site is hosted on Microsoft Azure Static Web Apps in the West Europe region. Like any web host, Azure processes the technical data needed to deliver a page, such as your IP address.
The typeface (Inter) is served from this site too. Your browser requests nothing from Google or any other font service.
Videos and pictures are served from this site; nothing is embedded from other services.
The waitlist
What we keep
Why
Your email address
To email you when a product you picked opens
The products you picked
So we only write about those
When you signed up, and the page link you came from
To keep one entry per person and see which page led there
Basis: your consent, given when you submit the form. You can withdraw it at any time.
Where: HubSpot, our customer-relationship service, in its EU data centre. HubSpot processes it only on our behalf.
Who sees it: Blade Labs, and HubSpot as our processor. We don't sell it, share it or use it for advertising, and we don't add you to other lists. Signing up sets no cookies.
How long: until you ask us to delete it, or until the products you picked have opened and we have told you.
Your choices
Write to hello@bladelabs.io from the address you signed up with to see what we hold about you, correct it, or have it deleted. We reply within 30 days. If you think we have handled your data wrongly, you can also complain to your local data protection authority.
Changes
If this notice changes, the date at the top changes with it. We will not use what we already hold in a new way without asking you first.