Claude Code Skills·Claude Skills·The open SKILL.md registry for Claude
ClaudSkills / Security / security-misc

Postgres Row Level Security

Category: Security  ·  Sub-category: security-misc  ·  Last updated:
cloud:supabase
Designing Postgres Row-Level Security (RLS) policies for multi-tenant authorization, especially in Supabase / PostgREST stacks — `CREATE POLICY` syntax, USING vs WITH CHECK, PERMISSIVE/RESTRICTIVE merge semantics, the `(SELECT auth.uid())` performance pattern that turns 171ms scans into <1ms, indexes still required, role-based bypass via BYPASSRLS, security-definer escape hatches. Grounded in postgresql.org, Supabase docs, and Gary Austin's RLS-Performance benchmarks.

About this skill (catalog notes)

Postgres Row Level Security includes 19 code blocks for direct copy-paste. At roughly 2,507 words the SKILL.md is on the longer end of the catalog distribution.

Original author
curiositech
Indexed lastmod
Catalog position
Security · security-misc
Indexed related skills
10

How Postgres Row Level Security fits the catalog

Postgres Row Level Security sits in the Security category under the security-misc sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

---

What this skill does

Postgres Row Level Security is a community-contributed Claude Code skill in the security-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/postgres-row-level-security/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Postgres Row Level Security Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/postgres-row-level-security
curl -L https://claudskills.com/skills/postgres-row-level-security/SKILL.md \
  -o ~/.claude/skills/postgres-row-level-security/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/postgres-row-level-security/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/postgres-row-level-security/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\postgres-row-level-security\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

Frequently asked questions

How do I install the Postgres Row Level Security Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/postgres-row-level-security/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Postgres Row Level Security skill do?
Designing Postgres Row-Level Security (RLS) policies for multi-tenant authorization, especially in Supabase / PostgREST stacks — `CREATE POLICY` syntax, USING vs WITH CHECK, PERMISSIVE/RESTRICTIVE merge semantics, the `(SELECT auth.uid())` performance pattern that turns 171ms scans into <1ms, indexes still required, role-based bypass via BYPASSRLS, security-definer escape hatches. Grounded in postgresql.org, Supabase docs, and Gary Austin's RLS-Performance benchmarks.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Postgres Row Level Security skill?
Use Postgres Row Level Security when your Claude Code task falls under the Security category — specifically in the security misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Postgres Row Level Security" or describe the task and let Claude pick). Browse related skills at /category/security/.
What is a Claude Code skill and how does the Postgres Row Level Security skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Postgres Row Level Security is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
curiositech. (2026). Postgres Row Level Security [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/postgres-row-level-security/
BibTeX
@misc{postgres-row-level-security-2026,
  author    = {curiositech},
  title     = {Postgres Row Level Security [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/postgres-row-level-security/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge
[![ClaudSkills](https://claudskills.com/badge/postgres-row-level-security.svg)](https://claudskills.com/skills/postgres-row-level-security/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/postgres-row-level-security.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/postgres-row-level-security.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Postgres Row Level Security"></iframe>

Free. No spam. Unsubscribe in one click.

More Security skills

Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Security skills → Top 100 skills
Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills.  ·  What's New  ·  Install guide  ·  About  ·  llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore