Governs a SQL database that two hosts read and write at the same time during a side-by-side migration. Use when a legacy .NET Framework app and a new .NET app share one database, point at the same connection string, or must both stay live while the schema changes.
Install
npx skills add microsoft/upgrade-agent-plugins --skill managing-shared-database-schemanpx skills add microsoft/upgrade-agent-plugins --skill managing-shared-database-schema -a claude-code -gnpx skills add microsoft/upgrade-agent-plugins --skill managing-shared-database-schema -a codex -ggemini skills install https://github.com/microsoft/upgrade-agent-plugins.git --path plugins/upgrade-agent/upgrade/dotnet/skills/lazy/data/managing-shared-database-schemagh skill install microsoft/upgrade-agent-plugins managing-shared-database-schemagit clone --depth 1 https://github.com/microsoft/upgrade-agent-plugins /tmp/microsoft__upgrade-agent-plugins
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/microsoft__upgrade-agent-plugins/plugins/upgrade-agent/upgrade/dotnet/skills/lazy/data/managing-shared-database-schema ~/.claude/skills/managing-shared-database-schema # Claude Code
cp -R /tmp/microsoft__upgrade-agent-plugins/plugins/upgrade-agent/upgrade/dotnet/skills/lazy/data/managing-shared-database-schema ~/.agents/skills/managing-shared-database-schema # Codex, Cursor, Gemini CLI, Copilot, OpenCode