Graft, explained (video)

Docs index · Provenance · Intent cards · Policy

A narrated tour of Graft in two and a half minutes: the review problem, the three roles (the agent, the reviewer, the platform owner), how a pull request flows from the webhook to three check runs and one managed comment, the four answers Graft gives, and what changes in a reviewer's day. Every organisation, person and pull request shown is fictional.

Open the video on its own page for chapters and subtitles (press c).

Chapters

Chapter	What it covers	Read more
The problem	Agent pull requests outpace review, and the description comes from the agent being judged.	README
Who is involved	The agent writes the code, the reviewer decides what merges, the platform owner sets the rules. GitHub stays as it is.	MVP spec
How it works	Signed webhook, server, queue, worker, writer and verifier, check runs and the managed comment.	Architecture
Who wrote it	Graft-* trailers, the commit hook, bot accounts and agent co-authors.	Provenance
What it claims	The intent card, and a verifier that sees only the diff, the file list and the card.	Intent cards
The risk floor	Fixed rules set trivial, logic or sensitive; a model can only raise the class.	Intent cards
The policy	graft.yaml from the base branch only: block wins, then require, then approve.	Policy
A new way of working	Reviewers read the card before the diff; agents keep working, plus a few trailers.	Pilot onboarding
Privacy and shadow mode	What is never stored, what is stored, what is sent to Anthropic; neutral checks and the 90% gate.	Pilots and the gate

About the video

The video is a web page, not a video file: every frame is drawn in JavaScript on a canvas from the elapsed time, over a synthetic voice-over (Kokoro, Apache-2.0 weights). Its sources are in website/videos/graft-explained/: the narration in script.json, the scenes in scenes.js. To embed it elsewhere, add ?embed=1 to its URL.