What is database-admin?

A guide to administering PostgreSQL and SQLite databases used by Rails applications. It covers routine health checks and procedures for keeping production databases available and recoverable.

Use it when checking database health, setting up or testing backups, tuning connection pooling, running vacuum or analyze maintenance, or handling an emergency restore.

It helps prevent data loss, outages, and unnoticed database problems by providing guidance on backups, monitoring, connection limits, maintenance, and restore checks.

database-admin — Skill for Claude Code by majesticlabs-dev

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.

Any agent

npx skills add majesticlabs-dev/majestic-marketplace --skill database-admin

Clone the repo

git clone --depth 1 https://github.com/majesticlabs-dev/majestic-marketplace

Made for: Claude Code.

Or install majestic-rails, the plugin that ships this one along with the rest of its 47 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/majesticlabs-dev/majestic-marketplace/database-admin/github.svg)](https://agentmods.dev/skills/majesticlabs-dev/majestic-marketplace/database-admin)

Your own site

<a href="https://agentmods.dev/skills/majesticlabs-dev/majestic-marketplace/database-admin"><img src="https://agentmods.dev/badge/skills/majesticlabs-dev/majestic-marketplace/database-admin/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/majesticlabs-dev/majestic-marketplace/database-admin"><img src="https://agentmods.dev/badge/skills/majesticlabs-dev/majestic-marketplace/database-admin.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 876 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00043	$0.00876
Opus 5.5	$0.00017	$0.00350
Sonnet 5.5	$0.00009	$0.00175
Haiku 4.5	$0.00004	$0.00088

Measured 2mo ago against content hash eb16ddc67b28, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

database-admin scanned grade A with 0 findings 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 2mo 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/majestic-rails/skills/database-admin/SKILL.md · 132 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

2mo ago First seen · 132 lines · 43 tokens per session scan A eb16ddc67b28

Subscribe to this mod's changes

database-admin is a skill published in the GitHub repository majesticlabs-dev/majestic-marketplace (50 stars, last pushed 1mo ago), with no licence file. It adds 43 tokens to every session and 876 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Databases PostgreSQL

database-admin next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
database-adminmajesticlabs-dev/majestic-marketplace	Skill	50	1mo ago	none	A	43	Claude Code
alloydb-basicsgoogle/skills	Skill	22k	yesterday	Apache-2.0	A	72	Claude Code, Codex
postgresql-table-designwshobson/agents	Skill	42k	yesterday	MIT	A	37	Claude Code
db-repairgarrytan/gbrain	Skill	32k	yesterday	MIT	A	96	Claude Code
volcengine-rds-postgresqlbytedance/agentkit-samples	Skill	484	today	Apache-2.0	A	63	Claude Code, Codex
dsqlawslabs/agent-plugins	Skill	937	yesterday	Apache-2.0	A	246	Claude Code
analyzing-insights-across-teamsPostHog/posthog-foss	Skill	728	yesterday	MIT	A	115	Claude Code, Codex