The pipeline stalls. A pull request waits, code changes locked in review hell. Bugs lurk because one missing control slipped through. This is where Git, GitHub, and CI/CD must stop being loose ideas and start working as a single, hardened system.
Git is the source of truth. Every commit is history you can’t bend. But without rules, chaos rises. Protect the main branch. Require reviews. Enforce signed commits. Audit merge logs. These are the bedrock Git controls that keep bad code out before automation starts.
GitHub adds the gatekeeping layer. Branch protection rules force status checks to pass. Required pull request approvals stop unverified changes. Code owners route work to the right reviewers. Two-factor authentication shields accounts from takeover. Combined, Git and GitHub form the human and policy perimeter before your CI/CD triggers.