The CircleCI orb is an open source, reusable config file that automates processes and integrates with services across the stack. It allows organizations to rapidly build, test, and deploy within their pipelines on a single platform using CircleCI's CI/CD service. The Datadog Synthetics CircleCI orb enables Synthetic tests as part of shift-left testing, allowing teams to detect and block code deployments that would break key workflows or endpoints. This integration simplifies testing across different environments, including development, staging, and production. Additionally, the orb provides rich context around pipeline health, enabling teams to optimize their CI/CD workflows and improve the reliability and efficiency of their pipelines.