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Ask once. The trades that apply answer.

Every trade here has its own assistant working from its own approved guide. Ask a question and the ones it touches answer separately — and where two of them disagree about who goes first, you see the disagreement instead of an average.

What it actually does

It answers from a written guide, not from memory

Each assistant is given the approved guide for its own trade and answers from that. When the guide doesn't cover something, it says so rather than inventing a plausible answer. That is the whole point — a confident wrong answer about a load-bearing wall costs more than no answer.

Nanny decides who speaks, and stays out of the answer

Nanny is the wizard. Your question is matched against every guide before anything is sent; the trades with a real match answer and the rest stay quiet. She never rewrites what a trade said — if she merged them into one voice you would lose the thing worth having. What she does do is call it when two of them contradict each other, before you cut anything.

Where trades disagree

Renovations rarely fail inside a trade. They fail at the boundary — where the drywaller's finish and the trim carpenter's reveal make different assumptions about the same wall, and neither is wrong on their own.

Worked example — Nanny on drywall and trim

Ask about baseboard reveal on a skim-coated wall and both answer. Drywall answers about the finish level it was built to. Trim answers about the reveal that finish leaves it. The conflict is recorded in advance, so you get told the two answers assume different things before you cut anything — not after.

Bring your own AI

If you already pay for Claude, ChatGPT, Gemini or Copilot, connect it and choose — app by app — what it runs instead of ours. Your key stays on your device; we never store it and never pay for your assistant's work.

Not open yet. The panel is built and being wired to accounts — it will land here rather than anywhere else.

Worth knowing when it does: an answer from your own assistant is not an answer from our guides, and won't be presented as one. The guides are written by people who are accountable for them. A general-purpose model is not, however good it sounds.

The Arena

The same question put to several different AI models at once, with a referee comparing the answers. It is a verification tool rather than a novelty: where four models independently agree, that is worth something; where they split, that is worth knowing before you act.

Open the Arena →

Which trades can answer today

A trade appears here only once its guide has been written and approved. The rest have pages and tools; they just don't have an assistant yet, and we would rather say so than give you a bot with nothing behind it.