GitLab 19.4 expands MCP server with governed CI/CD and MR tools
GitLab 19.4 adds beta MCP tools so agents can run pipelines, open/update merge requests, triage vulnerabilities, and manage work items—with read-only actions auto-allowed and writes gated by the same tool governance as Duo. A new “merge request created” trigger can fire flows as soon as a diff is ready.