databases SKILL.md skillA

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

Install it, pinned

mdr add iuliandita/skills/databases@git:20261003.496420b

Pins git:20261003.496420b in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: iuliandita/skills
Path: skills/databases/SKILL.md
Versions recorded: 12
Latest version: git:20261003.496420b, committed Oct 3, 2026
First version recorded: Jun 14, 2026
Size: 32,765 bytes
Repository stars: 8
License: MIT

Design schemas, tune queries, migrate, and administer PostgreSQL, MySQL/MariaDB, MongoDB, MSSQL, Redis, and Valkey.

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: Production Configuration & Operations

Configure, tune, design schemas, migrate, back up, and review database engines - from single-node dev setups to PCI-compliant production clusters. The goal is correct, performant, durable databases that survive failures and pass audits.

**Target versions** (October 2026):
- PostgreSQL **18.6** (EOL 2030-11; August 13, 2026 release), back-branches: 17.11, 16.15, 15.19, 14.24; PostgreSQL 19 Beta 4 is for testing only
- MongoDB **9.0.2** (new major, GA 2026-09-28, EOL 2031-10); 8.0 lane **8.0.34** (EOL 2029-10); 8.0.32 fixes CVE-2026-89099 and is the security floor for the 8.0 lane. The rapid lane is Atlas-only with a short window - verify live before pinning
- MariaDB **11.8.9** (LTS, EOL 2028-06), **12.3.3** (LTS, EOL 2029-06); 13.x rolling GA is quarterly and EOLs at each successor - verify live
- MySQL **8.4.12** (LTS; August 18, 2026 release), **9.7.3** (9.7 LTS lane; August 18, 2026 release); the innovation lane has a short support window - verify live
- Redis **8.10.2**; Valkey **9.1.2** (9.0.6 on the 9.0 lane) - verify live before pinning
- SQL Server **2025 RTM + CU9** (released 2026-09-15)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add iuliandita/skills/databases@sha256:5f8fe035115fcf3e

The line at the top of this page pins the label git:20261003.496420b, 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_cmzgkjp6r3bixwvg.svg)](https://markdownregistry.com/a/art_cmzgkjp6r3bixwvg)

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

Versions

The registry has recorded 12 versions of this file, between Jun 14, 2026 and Oct 3, 2026, about one every 10 days.

version	committed	commit	size	audit
git:20261003.496420b latest	2026-10-03	496420b	32,765 B	A	view · diff
git:20261002.a7f9a1c	2026-10-02	a7f9a1c	32,585 B	A	view · diff
git:20260924.f55305d	2026-09-24	f55305d	31,927 B	A	view · diff
git:20260920.ac01853	2026-09-20	ac01853	31,717 B	A	view · diff
git:20260917.7c60b3a	2026-09-17	7c60b3a	30,852 B	A	view · diff
git:20260910.4c98b5e	2026-09-10	4c98b5e	30,615 B	A	view · diff
git:20260910.6481616	2026-09-10	6481616	29,921 B	A	view · diff
git:20260904.ccfce41	2026-09-04	ccfce41	28,767 B	A	view · diff
git:20260727.4786b50	2026-07-27	4786b50	28,426 B	A	view · diff
git:20260722.99f7e84	2026-07-22	99f7e84	29,106 B	A	view · diff
git:20260614.2e827aa	2026-06-14	2e827aa	29,045 B	A	view · diff
git:20260614.4a94e9c	2026-06-14	4a94e9c	28,666 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 (32765 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

iuliandita/skills · 8 stars · license MIT · pushed 2026-10-19 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_cmzgkjp6r3bixwvg
GET https://markdownregistry.com/api/v1/resolve?ref=iuliandita/skills/databases
GET https://markdownregistry.com/api/v1/blob/5f8fe035115fcf3e59e7500291e96e3f3d572032abdf626b23b16aa086cd0bfd

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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