GitHubhttps://github.comThe code host everything indexes against — API, Models, Copilot, Actions. GitLab MCPhttps://gitlab.comGitLab's official MCP. commit-archaeologist skillhttps://github.com/Shubhamsaboo/awesome-llm-apps/tree/main/agent_skills/commit-archaeologistSkill: dig through git history for why code exists.