QueryBench gives database work a post-commit safety net

Field notes

QueryBench’s Stash workflow reads the original rows inside the same transaction before an update or delete, then leaves recovery SQL for the operator to review and run manually. Retention defaults to 15 minutes and can be adjusted from 1 minute to 24 hours; the retained data stays in memory. Its backup workflow uses native database utilities to create gzip archives and can send them to S3-compatible storage, while the MCP server is described as loopback-only and token-protected.