GitHub shipped agentic workflows into public preview. Natural language compiles to Actions YAML.

GitHub announced Agentic Workflows in public preview today. You write automation in natural language Markdown. GitHub compiles it into standard Actions YAML.

Carvana and Marks & Spencer are already using it. James Hoare, CTO at M&S: 'Our developers were losing hours every sprint to triaging issues, remediating vulnerabilities, maintaining dependencies. Now it completes autonomously in minutes.'

Security layers:
- Read-only by default
- Sandboxed containers
- Agent Workflow Firewall
- Safe outputs validation
- Dedicated threat detection before any change is applied

Prebuilt workflows cover triage, reporting, and compliance. Reuses existing runner groups and policy constraints. No new infrastructure.

The shift: agents are moving from 'open a PR' to 'run the entire SDLC.'

Source: GitHub Blog