databases SKILL.md skillA

databases from tamnguyendinh/anvien is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add tamnguyendinh/anvien/databases@git:20260905.74471cc

Pins git:20260905.74471cc in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: tamnguyendinh/anvien
Path: internal/aicontext/skills/databases/SKILL.md
Versions recorded: 5
Latest version: git:20260905.74471cc, committed Sep 5, 2026
First version recorded: Jun 4, 2026
Size: 7,299 bytes
Repository stars: 12
License: MIT

Use when creating, changing, or reviewing MongoDB/PostgreSQL/SQLite database work in a real repository, including schema, models, migrations, queries, indexes, transactions, connection config, backup/restore assumptions, dual-database desktop sync, or performance; follow repo-native tooling and meet the production database bar unless the user explicitly asks for a prototype.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Databases Skill

Repo-first guidance for creating, changing, and reviewing MongoDB, PostgreSQL, or SQLite database work in real repositories.

## Purpose

Use this skill when the task involves database schema, models, migrations, queries, indexes, transactions, seed data, connection config, backup/restore assumptions, or database performance.

The goal is not to teach basic database syntax. The goal is to help the agent produce database work that is correct, production-ready, and consistent with the target repository.

## Core Rule

Follow the user's requested action.

If the user asks for review, review. If the user asks for a plan, plan. If the user asks for implementation, implementation is allowed.

In every mode, database work must meet the production database bar unless the user explicitly asks for a throwaway prototype.

## Repo-First Rule

Before proposing or editing database work, inspect the target repository first:
- Database engine and version
- ORM, query builder, or data-access layer
- Migration framework and migration conventions
- Existing schema, model, index, and query patterns
- Connection config and environment conventions
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add tamnguyendinh/anvien/databases@sha256:78e2617849094870

The line at the top of this page pins the label git:20260905.74471cc, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_ns3bv34fcsziv6dh.svg)](https://markdownregistry.com/a/art_ns3bv34fcsziv6dh)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Jun 4, 2026 and Sep 5, 2026, about one every 23 days.

version	committed	commit	size	audit
git:20260905.74471cc latest	2026-09-05	74471cc	7,299 B	A	view · diff
git:20260903.ce8b77d	2026-09-03	ce8b77d	6,184 B	A	view · diff
git:20260607.7b4f413	2026-06-07	7b4f413	5,793 B	A	view · diff
git:20260605.f58cb70	2026-06-05	f58cb70	6,894 B	A	view · diff
git:20260604.bd0c625	2026-06-04	bd0c625	6,733 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (7299 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

tamnguyendinh/anvien · 12 stars · license MIT · pushed 2026-10-25 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_ns3bv34fcsziv6dh
GET https://markdownregistry.com/api/v1/resolve?ref=tamnguyendinh/anvien/databases
GET https://markdownregistry.com/api/v1/blob/78e26178490948705c8b82ae368abc6277ada1743b7e30e718a086413f8dbb41

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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