The Safe Way to Ship Production Code Written by AI Agents
There's a specific kind of pull request happening right now that would have been unthinkable three years ago: a feature branch opens, tests run, a bot writes the implementation, a human clicks "approve," and the change ships — and the human never typed a line of the diff. Not reviewed and cleaned up. Reviewed and shipped.
That's not a demo. GitHub says developers used Copilot coding agent — the version that goes off, plans a multi-step task, and comes back with a finished PR — to create more than a million pull requests between May and September 2025, according to GitHub's Octoverse 2025 report. Developers merged 518.7 million pull requests on the platform in 2025, up 29% year over year. Something structural changed in how software gets written in 2025, and most engineering leaders are still writing policy for the old thing.
This piece is a playbook, not a hype...
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