Account Resize Safety Lab 01

Open account-resize-safety.html in a modern browser. The interaction runs locally and needs no server, RPC, wallet, or network. The HTML, CSS, and classic JavaScript file are included together for offline use. Source links inside the lab require an internet connection.

All account and lamport figures are fictional teaching examples. Query the target cluster for an actual rent-exempt minimum. Never apply subtractive realloc to a custody account without a separate invariant that protects every user balance.

MANIFEST.sha256 lists the included source file hashes and curriculum revision. This lab is educational material, not a production implementation.
