A steward is an agent with one mission. It watches every PR and builds a focused backlog you can see and steer. It doesn't compete with the roadmap. It just owns its domain.
Cross-cutting work fails because it's everyone's job and nobody's priority. A steward owns one domain end-to-end — it watches, builds a backlog, and surfaces what matters. You decide when to act.
One mission means every PR gets a high-signal assessment in that domain. A narrow contribution zone means small, focused PRs that merge fast — not sprawling changesets that sit in review.
Install the GitHub App. That's it. You and your team keep working exactly as you do today. Reviews appear on your PRs, and the backlog grows smarter over time.