Enforce deterministic CI before agents

- Engineering teams are pushing deterministic CI gates—linting, visual regression (Percy), and mutation tests (Stryker)—to run before permitting AI agents to propose merges. (x.com) (x.com) - Practices promoted include strict TDD, enforced PR reviews, and full-suite tests to block nondeterministic or bad AI edits from entering main branches. (x.com) (x.com) - The approach reduces bot-driven flakiness in CI and preserves reproducible builds and audit trails for production deployments. (x.com)