> For AI agents: the complete documentation index is available at /llms.txt, the full documentation bundle is available at /llms-full.txt.

# GitLab Root Actor

> **Themelio compatibility reference.** This page describes the retained Themelio implementation or its historical design. Check the [parallel-operation guide](/compatibility/index.md) before applying it to the current platform.

GitLab Root Actor is a Fastify microservice (port 3001) that holds the GitLab root Personal Access Token and performs privileged operations on behalf of the platform. It handles user provisioning (ensuring users exist in GitLab on first login), impersonation token creation and deletion, and personal access token management. Located at `services/gitlab-root-actor` in the monorepo.

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