AI agent skill · by @Archive228

Sql Review

Review SQL and ORM queries for correctness, safety, and performance before they ship.

Archived 2026-10-23 · Source updated 2026-07-14 · License: MIT. Check the original repository for the latest version.

SKILL.md instructions

# SQL Review
- **Injection** — parameterized, always. No string interpolation into SQL.
- **N+1** — a query inside a loop? Replace with a join or a batched IN.
- **Missing index** — does the WHERE/JOIN/ORDER BY hit an indexed column? If not, the table scan will surface at scale.
- **Unbounded** — SELECT with no LIMIT on a growing table; a JOIN that fans out rows.
- **Transactions** — multi-write operations wrapped so a partial failure can't corrupt state.
- **Migrations** — reversible (up AND down), and safe on a live table (no blocking lock on a hot table at peak).
Output: each issue with the line and the rewrite. Show the EXPLAIN if performance is the concern.