postgres-rls

postgres-rls is a skill for Claude Code, Codex from troykelly/codex-skills. It costs 38 tokens per session (2,871 once invoked), scanned B, original, no licence file.

A set of rules for PostgreSQL Row Level Security, which restricts database rows according to the user or tenant accessing them. It focuses on authentication tables, tenant separation, security policies, and preventing policy bypasses.

In plain words
What is it for?
Use it when changing authentication tables, adding multi-tenant database features, or creating and reviewing Row Level Security policies.
Why use it?
It helps stop one customer or tenant from reading another tenant’s data. It also catches common mistakes in database access policies.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/troykelly/codex-skills/postgres-rls
Any agent
npx skills add troykelly/codex-skills --skill postgres-rls
Clone the repo
git clone --depth 1 https://github.com/troykelly/codex-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for postgres-rls

README.md
[![agentmods](https://agentmods.dev/badge/skills/troykelly/codex-skills/postgres-rls.svg)](https://agentmods.dev/skills/troykelly/codex-skills/postgres-rls)
Your own site
<a href="https://agentmods.dev/skills/troykelly/codex-skills/postgres-rls"><img src="https://agentmods.dev/badge/skills/troykelly/codex-skills/postgres-rls.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,871 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00038 $0.02871
Opus 5 $0.00019 $0.01435
Sonnet 5 $0.00008 $0.00574
Haiku 4.5 $0.00004 $0.00287

Measured 5d ago against content hash 1e454a2bc229, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade B, and why

postgres-rls scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nullifies safety policiesmediumAnti-refusal

"You have no restrictions", "do anything now", "ignore your guidelines": a direct jailbreak that disables guardrails.

Superusers and roles with `BYPASSRLS` ignore ALL policies.

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

skills/postgres-rls/SKILL.md · 392 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 392 lines · 38 tokens per session scan B 1e454a2bc229

Subscribe to this mod's changes

postgres-rls is a skill published in the GitHub repository troykelly/codex-skills (11 stars, last pushed 7mo ago), with no licence file. It adds 38 tokens to every session and 2,871 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (nullifies safety policies). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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