supabase-postgres-best-practices

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Postgres performance optimization and best practices from Supabase. Use this skill when writing, reviewing, or optimizing Postgres queries, schema designs, or database configurations.

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Sourcesecondsky/claude-skills

Added on2026-02-15

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SKILL.md Content

Supabase Postgres Best Practices

Comprehensive performance optimization guide for Postgres, maintained by Supabase. Contains rules across 8 categories, prioritized by impact to guide automated query optimization and schema design.

When to Apply

Reference these guidelines when:

Writing SQL queries or designing schemas
Implementing indexes or query optimization
Reviewing database performance issues
Configuring connection pooling or scaling
Optimizing for Postgres-specific features
Working with Row-Level Security (RLS)

Rule Categories by Priority


query-
conn-
security-
schema-
lock-
data-
monitor-
advanced-

Priority	Category	Impact	Prefix
1	Query Performance	CRITICAL	`query-`
2	Connection Management	CRITICAL	`conn-`
3	Security & RLS	CRITICAL	`security-`
4	Schema Design	HIGH	`schema-`
5	Concurrency & Locking	MEDIUM-HIGH	`lock-`
6	Data Access Patterns	MEDIUM	`data-`
7	Monitoring & Diagnostics	LOW-MEDIUM	`monitor-`
8	Advanced Features	LOW	`advanced-`

How to Use

Read individual rule files for detailed explanations and SQL examples:

references/query-missing-indexes.md
references/schema-partial-indexes.md
references/_sections.md

Each rule file contains:

Brief explanation of why it matters
Incorrect SQL example with explanation
Correct SQL example with explanation
Optional EXPLAIN output or metrics
Additional context and references
Supabase-specific notes (when applicable)