Find account-existence leaks in Supabase sign-in.
Checks authentication endpoints for disclosures of user existence and produces an audit with evidence and mitigation recommendations.
When to use it
Use to check whether authentication flows reveal account existence, during a security audit or before production deployment.
Give it a request to test user enumeration; it returns an audit of authentication endpoint responses and timing.
Requires a Supabase instance with accessible authentication endpoints and an available URL.
Requires a Supabase anon key; the request examples pass it in the apikey header, without specifying how it is obtained.
This skill
Supabase
Submits authentication tests to Supabase (irreversible)