Give an AI agent a brief it cannot misread: the goal, the forbidden list, and when to stop and ask. For anyone starting to hand real tasks to ChatGPT agent, Claude or Gemini.

$8 once, yours to keep. Runs offline in your browser: no account, no AI key, no subscription.

Also part of the AI Builder Kit: Plainspoken, Blueprint, Skillsmith, Handoff and Promptbook together for $29 instead of $37.

Brief your AI agent like a pro.

Agents are the big shift in AI this year: instead of answering, they do. They browse, compare, fill in forms, sort files and draft replies. They are also literal, overconfident and easy to mislead, and the instructions people give them are usually one line.

Handoff turns that one line into a brief a careful human assistant would be glad to receive.

What it does

• The job: goal, context, where to look, written as outcomes instead of clicks
• "Done means" checklist so the agent knows when to stop
• Eight permission switches: browse, read files, edit files, use logged-in accounts, submit forms, send messages, spend money, delete
• Everything switched off is written into the brief as forbidden
• Risky switches add stop-and-ask gates automatically: show the draft before sending, show the list before deleting, stop at the payment page
• Hard rules with one-click suggestions, including the guard against prompt injection (hidden instructions on web pages and in documents)
• Time limit, spending cap, what to do if stuck, report format with a "Not sure about" section and an action log
• Risk rating (low, medium, high) with what that means for how closely to watch
• Five templates: research and compare, tidy a folder, book something, weekly watch, inbox triage
• Run log: result, your minutes, by-hand minutes, notes; totals for hours saved after checking time, right-first-time rate and most reliable brief
• Backup and restore

Who it's for

Anyone starting to use ChatGPT agent, Claude's computer and browser tools, Gemini's agent features or similar, who wants the time back without the horror story.

What you get

• Handoff (one .html file, runs in your browser, offline)
• A 2-page quick-start guide

Good to know

• Works with the AI you already use: ChatGPT, Claude, Gemini and the rest. There is no AI inside the app, so no API key, no credits and no monthly fee.
• One file. No install, no account, no subscription, no internet needed after download.
• Your data stays on your computer. Export a backup any time; import it on another machine.
• Built for a computer screen: Windows or Mac, in Chrome, Edge, Safari or Firefox.
• Instant download.

Need a custom app built for your business? I build native iOS apps and web tools from prototype to launch. Services and pricing · LinkedIn

Who made this

Matt Busel, AI Engineer @ Tensorust. I built 21 iOS apps from a Windows PC, a Steam game, and an AI agent team that runs my outreach in public, failures included.

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8 iOS apps live on the App Store (21 uploaded from Windows)

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Live things I built

• O'BLOCK on Steam (out Oct 20)
• Chain: Habit Tracker
• Ironbook: Workout Log
• Live receipts: what the agents did today
• Code on GitHub