A first-party PostgreSQL reference for schema, query, indexing, connection and access-policy decisions, including Supabase projects.
Editorial review checked 2026-10-29 against this instruction snapshot. Supporting scripts and runtime behavior remain outside this review.
The skill brings database design and operational review into the agent's workflow. Its reference material spans query execution, connection handling, schema choices and row-level access controls. This breadth matters because a database change can look fast on a small local example while creating locking, isolation or permission problems under a realistic workload.
Developers changing PostgreSQL queries or tables, diagnosing a slow database operation, reviewing indexes, or checking Supabase access policies. It can help frame the questions to ask before applying a migration, especially when one application serves several users or tenants with different data visibility.
The skill does not know the true data distribution, traffic or privilege model of your deployment. Query plans and access policies must be checked with representative data and appropriate roles. Production migrations can have operational consequences even when their SQL is syntactically correct. Keep backups, a rollback strategy and the required human authorization for consequential changes.
Unknown; inspect source requirements and supporting scripts.
Inspect the pinned source snapshot and its supporting files first. The command selects this skill through the open-source skills CLI. Node.js and agent-specific setup may be required. Installation can download code; this catalog never runs it.
npx skills add https://github.com/supabase/agent-skills/tree/c9be0e931b7930f7d02126d04774d904c381e7d7/skills/supabase-postgres-best-practices --skill supabase-postgres-best-practicesReview pinned skill folder ↗ · CLI documentation ↗
After source review, use npx skills check and npx skills update to inspect and apply upstream updates. Re-check changed instructions before running them.
Static review only. This is not a security audit or a guarantee of safety.
SKILL.md text only; scripts, dependencies and runtime behavior not audited.
Allowed tools declaration: Unknown. Runtime permissions and network behavior: Unknown.
86/100 · Metadata coverage 100% · Model 1.0
Scores summarize observable discovery signals. Popularity and repository activity apply to the whole repository. Unknown runtime safety earns no certification.
Describe the query or schema contract, inspect the existing structure and execution evidence, propose a focused change, then validate both performance and permissions. Pair it with test-driven-development for behavior checks and verification-before-completion for the release evidence.
Test realistic data sizes, relevant concurrent operations and both permitted and denied access cases. Record the actual query plan and any migration or rollback limitations.
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Editorial combinations of complementary roles; review each source independently.
Connect implementation planning, PostgreSQL review and deployment evidence for a service with persistent data.