Step 1 · Free 5-day challenge · for builders with no agent yet

Build your first agent

Build an inbox assistant that reads, labels and drafts replies on a practice mailbox, and never sends without your approval. Then try to break it.

Build it, then try to break it.

Day 1 What must it never do? Write your Never List. Get a first version running.
Day 2 What can it touch? Give it tools: search, read, label, draft.
Day 3 Does it work on real mail? Run it on the practice mailbox, with approval before sending.
Day 4 Where does it break? Attack it, and turn each failure into a yes/no check.
Day 5 Would you ship it? Make the go/no-go call on your own agent.

No hand-written code, but you run commands, read the changes and fix what the assistant gets wrong.

Build your first agent in five days, then make it reliable. It opens after the first “Make your agent reliable” run. Free.

already have an agent?

Skip ahead and make a real one reliable.