Privacy Policy
Last updated: 28 October 2026
The CoS Playbook (cosplaybookv2.vercel.app) is a free guide for Chiefs of Staff. This page explains what information we collect when you use it, why, and what control you have over it.
What we collect
- Account details: your email address and, if you give it, your full name.
- Sign-in details: how you signed up (email and password, or Google), when you signed up, and when you last logged in.
- Google sign-in: if you choose "Continue with Google", Google shares your name, email address and profile picture link with us. We do not get your Google password or access to anything else in your Google account.
- Searches: the text you type in the search box is sent to our server to find matching answers. We do not store your searches.
Your password is handled by our sign-in provider and stored only in encrypted (hashed) form. We cannot see it.
How we use it
- To create your account, let you log in, and keep you logged in.
- To send account emails you ask for, such as confirming your email address or resetting your password.
- To protect the service, for example by limiting how many searches can be made in a short time.
We do not use your information for advertising, we do not sell it, and we do not share it with anyone except the service providers below, who run the site for us.
Where it is stored
- Supabase hosts our database and sign-in system. Your account details are stored there.
- Vercel hosts the website. Like most web hosts, it may keep short-lived technical logs such as IP addresses.
- Google handles sign-in only if you choose "Continue with Google".
These providers may store data outside your country. They are bound by their own security and privacy commitments.
Cookies and local storage
We do not use advertising or tracking cookies. To keep you logged in, your browser stores a sign-in token for this site. Logging out removes it.
How long we keep it
We keep your account details while your account exists. If you ask us to delete your account, we delete your details within 30 days.
Your choices
- See the details we hold about you, or ask us to correct them.
- Ask us to delete your account and all details linked to it.
- Stop using Google sign-in at any time from your Google account settings.
To do any of these, email anmol.shri1992@gmail.com from the address on your account.
Children
The CoS Playbook is meant for working professionals. It is not intended for anyone under 18.
Changes to this policy
If we change this policy, we will update the date at the top of this page. Significant changes will also be noted on the site.