dsh-local-dba

Working with a database inside a DeepSeek Harness workflow used to mean leaving the chat, opening a terminal, and typing mysql or psql by hand. dsh-local-dba folds that ritual into the agent itself: once the plugin bundle is registered, a full set of db_* tools lets the agent run queries, inspect schemas, execute DDL/DML, perform logical backups and restores, and pull slow queries or process lists—all against MySQL / MariaDB and PostgreSQL.

Safety is baked in by design. db_query is strictly read-only and enforced at the SQL level; the write-permission and backup/restore switches are both off by default, so the plugin is safe the moment it loads. Passwords can come from an environment variable, and credential values are passed to mysqldump / pg_dump child processes via MYSQL_PWD and PGPASSWORD so they never appear in the process argument list. Managing multiple connections is a UI exercise rather than a file-editing chore: add, remove, or set the default connection in the plugin settings card, and changes hot-reload without a restart. The whole bundle is plain ESM JavaScript with no build step.

It is aimed at solo developers juggling several local databases, full-stack engineers who want to weave SQL steps into an agent pipeline, and DBAs who would rather delegate repetitive tasks like schema inspection, slow-log triage, and quick backups. When you do flip on write access, the agent can issue CREATE / ALTER / DROP / INSERT / UPDATE / DELETE statements—changes are irreversible, so keep those switches off for production or critical instances and enable them only in isolated local or test profiles.