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database-postgresql

Apply PostgreSQL standards for migrations, indexing, transactions, and ORM boundaries. Use when editing entities, Prisma schema, migrations, RLS, or query-performance work for PostgreSQL.

The English summary is being prepared. Showing the original description.

Works withPostgreSQL
See how to install

Files included (7)

  • SKILL.md2.0 KB
  • evals/evals.json2.3 KB
  • references/anti-patterns.md2.3 KB
  • references/best-practices.md3.8 KB
  • references/checklist.md1.8 KB
  • references/implementation.md363 B
  • references/sql-gotchas.md1.6 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

PostgreSQL Database Standards

Priority: P0 (CRITICAL)

Rules

  • Keep PostgreSQL choices driven by real read/write paths.
  • Use explicit migrations; never rely on synchronize: true in production.
  • Treat RLS, constraints, and indexes as first-class schema behavior; use queryRunner.query() when raw migration SQL is required.
  • Enable RLS explicitly in a migration (ALTER TABLE <table> ENABLE ROW LEVEL SECURITY) and create tenant policies before application rollout.
  • Put multi-step consistency inside one transaction boundary.

Verify

  • Destructive schema change uses expand -> backfill -> contract rollout.
  • Query shape has matching indexes for filter, join, and sort paths.
  • Pagination strategy is explicit.
  • Transaction boundary matches one business action.
  • RLS or tenant predicates are supported by indexes.

Anti-Patterns

  • No N+1 queries: Use query builders or eager-load relations instead of lazy-loading in loops.
  • No heavy RLS joins: Keep RLS predicates simple; move complex logic to query/view layer.
  • No synchronize in production: Always run explicit migrations; synchronize: true destructive.
  • No blind index sprawl: each index needs a query owner.

References

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