Harness Deployment Pipelines facilitate the integration of third-party tools to enhance testing, performance, and security by employing API and webhook methods for automated commit-to-deploy processes. By configuring dynamic triggers and external approvals, these pipelines improve software delivery efficiency and ensure stable code reaches production. The design includes multiple stages for different environments, enabling selective and conditional execution, such as deploying code to QA targets for internal testing. Third-party tools, including Vulcan, Sonar, or Checkmarx, can be integrated to trigger deployments and manage approvals through API-based interactions, ensuring loose coupling and seamless collaboration. Dynamic Triggers and External Approval concepts allow the automation of these processes, with third-party tools providing necessary inputs and approvals using Harness's exposed APIs and custom configurations. This integration supports asynchronous communication among heterogeneous tools, enhancing businesses’ ability to achieve efficient, automated end-to-end deployment processes.