Hi Product Hunt, I'm Diogo. I built signoff-ui because coding agents now propose changes across several files and ask to run commands that can break things, and someone has to sign off on both. The chat kits most teams use stop short of that step. signoff-ui is React components for it. DiffReview computes the hunks from each file's old and new contents, lets a person accept or reject them (or whole files) and comment on lines from the keyboard, and gives the agent back each file with only the accepted hunks applied, the rejected hunks and every comment. ApprovalCard shows exactly what will run and how risky it is, takes a reason with a denial, and approves once, for the session or always, by tool and argument pattern. It renders the message parts the AI SDK's useChat already gives you (AI SDK 6 and 7), and AG-UI and ACP agents through adapters, inside assistant-ui, AI Elements or your own chat. Try the playground, no API key: https://signoff-ui.vercel.app It's MIT licensed and the roadmap is public. If you try it on a real project, tell me where it breaks.

signoff-ui

Review what your agent changed, approve what it may do

Review what your agent changed, approve what it may do