Skill Detail
Diff live database schemas against declarative SQL before schema drift reaches production with sqldef
Compare checked-in SQL against live MySQL, PostgreSQL, SQLite, or SQL Server schemas and generate a reviewable apply plan before agents touch production databases.
Runbooks & DiagnosticsMulti-Framework
Runbooks & Diagnostics
Multi-Framework
Security Reviewed
⭐ 3.1k GitHub stars
INSTALL WITH ANY AGENT
npx skills add agentskillexchange/skills --skill diff-live-database-schemas-against-declarative-sql-before-schema-drift-reaches-production-with-sqldef
Works best when you want a reusable capability, not another fragile one-off prompt.
At a glance
Tools required
Go-built sqldef binary and access to a supported relational database
Install & setup
Install the sqldef binary for your platform from the project releases or package manager, prepare declarative SQL files for the target database, then run the matching tool such as `psqldef`, `mysqldef`, or `sqlite3def` against a live database to review and apply the diff.
Author
sqldef
Publisher
Organization
Last updated
Apr 17, 2026
Quick brief
Use sqldef when an agent needs to reconcile a live database with declarative SQL files, review the generated diff, and apply schema changes in a controlled way. Invoke it instead of doing manual DDL or ad hoc database admin work when the real job is drift detection and schema alignment from checked-in SQL. The scope boundary is narrow and skill-shaped: schema diff and apply for supported relational databases, not general querying, ORM migration authoring, or a generic database product listing.