GitHub Weekly: Agentic Workflows Hit Tech Preview, Gemini 3.1 Pro Arrives

The Big Story: Agentic Workflows Go Public This week, GitHub launched Agentic Workflows in technical preview —the most significant platform update since GitHub Actions itself. This isn't just another AI feature. It's a fundamental shift in how we think about repository automation. GitHub Agentic Workflows let you write automations in plain Markdown instead of YAML. You describe the outcome you want, drop the file in .github/workflows/ , and a coding agent handles it—triaging issues, updating docs, fixing CI failures, improving test coverage. All running in GitHub Actions with actual guardrails: read-only by default, sandboxed execution, safe outputs for write operations. I've been waiting for something like this. Traditional CI/CD handles deterministic tasks brilliantly—build, test, deploy. But the maintenance work that eats time? Triaging issues that need context. Keeping docs aligned with code changes. Investigating flaky tests. These tasks require judgment, not just automation. That