If you’re paying for GitHub Actions minutes, you’re probably wasting money. Every time you push new commits while a previous workflow is still running, those old runs become pointless. But they keep burning through your runner time anyway. The fix is simple: auto-cancel redundant workflows. The Problem Picture this: You push a commit. Tests start running. Before they finish, you push a second commit with a tiny typo fix. Now two workflows are running simultaneously — one on an outdated commit you no longer care about. That first run is garbage. But GitHub still charges you for every minute of it. Multiply this across your team. Across multiple PRs. Across the entire day. You're easily looking at 30–50% wasted runner time. The Solution One YAML block inside your GitHub Actions workflow: yaml concurrency: group: ${{ github.workflow }}-${{ github.ref }} cancel-in-progress: true That’s it. group — creates a named queue per workflow + branch. Only one run from this group runs at a time.…