Your data, in plain English.
What The Agentic Line stores, who helps us run it, and how you can take your data with you or delete it. This summary is written to be read in full.
Plain-English summary · Last updated 26 September 2026
Who runs this
The Agentic Line runs this free interview-preparation service. We do not publish an email address: for anything about your data, sign in and send us a message from the Contact page, choosing “Privacy or data request”. You can also export or delete your data yourself at any time in Settings › Account.
What we store
- Your email address. Clerk, our sign-in provider, holds it so you can sign in with a code, and our own database (Supabase, in London) also stores it with your profile and progress.
- Your profile answers: track, starting level, interview date if you give one, and the name or alias you choose.
- Your practice progress: answers, lab results, assessments, experience points and streaks.
- What you write: private notes, preparation plans, designs, mock interview answers, project stories, any community posts and any messages you send us from the Contact page.
- Code you submit to coding labs, with its test results. You can delete the code of past submissions yourself.
- How you first found us: a first-party record of the campaign tag, referral code or referring website that first brought your browser here, saved once to your account. We never record email addresses from links.
Answers to the public sample questions stay in your browser tab. They are saved to your account only if you create one in that tab.
Who helps us run it
- Clerk: authentication (sign-in codes, sessions and account security).
- Supabase: our database, hosted in London (AWS eu-west-2). It holds your account email, profile, progress, what you write and your messages to us.
- E2B: runs the code you submit in an isolated sandbox with no internet access. It receives your code and the lab's tests, not your name or email.
- Vercel: hosts the site in London and provides cookieless Web Analytics, which counts page views and anonymous product events without identifying you.
What we never do
- We do not sell your data or share it with employers or recruiters.
- We do not use advertising trackers or advertising cookies.
- Community posts are visible to other signed-in members. You choose whether you appear on the leaderboard, and you are hidden by default.
Cookies and your browser
We use a secure session cookie to keep you signed in, and Clerk sets its own sign-in cookies. Your browser also keeps a few things locally: unsaved drafts, whether this browser has signed in before, your sample answers for the current tab, and how you first found us until you create an account.
How long we keep it
We keep your data for as long as your account exists. When you delete your account, your email, profile, progress, notes, submissions and messages to us are removed from the live database, and your community posts are replaced with a “[Deleted]” placeholder. Our providers may keep backups for a limited time under their own policies.
Your controls
- Export: download everything your account holds from Settings › Account.
- Delete: delete your account from the same page at any time.
- Ask: under UK data protection law you can ask to access, correct or delete your data, or object to how it is used. Sign in and send a “Privacy or data request” from the Contact page. You can also complain to the Information Commissioner’s Office (ico.org.uk).