Db-branch, a Go-based tool with native Model Context Protocol support, chains OpenZFS copy-on-write dataset clones with ProxySQL connection multiplexing to create disposable, sub-second clones of stateful MySQL and PostgreSQL instances for CI and autonomous agents, eliminating the storage penalty of multi-gigabyte staging environments. The tool targets ephemeral database sandboxes by making full database state branchable rather than copied.
By chaining OpenZFS copy-on-write dataset clones with ProxySQL connection multiplexing, db-branch eliminates the storage penalty of spinning up multi-gigabyte staging environments. Engineered in Go with native Model Context Protocol support, it transforms stateful MySQL and PostgreSQL instances into disposable, sub-second execution sandboxes for CI and autonomous agents.
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