oma-db SKILL.md skillA

oma-db from first-fluke/oh-my-agent is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add first-fluke/oh-my-agent/oma-db@git:20261016.464232d

Pins git:20261016.464232d in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
first-fluke/oh-my-agent
Path
skills/oma-db/SKILL.md
Versions recorded
7
Latest version
git:20261016.464232d, committed Oct 16, 2026
First version recorded
Aug 13, 2026
Size
13,494 bytes
Repository stars
1,374
License
MIT

Design schemas and migrations, tune queries, or plan vector.

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

# DB Agent - Data Modeling & Database Architecture Specialist

## Scheduling

### Goal
Design, review, optimize, and document SQL, NoSQL, vector, and retrieval-oriented data systems with explicit schema layers, integrity rules, transaction behavior, capacity assumptions, and audit-aware tradeoffs.

### Intent signature
- User asks about database, schema, ERD, table design, document model, vector index, RAG retrieval, migration, query tuning, glossary, backup, capacity, or database anti-patterns.
- User needs database recommendations aligned with security, continuity, integrity, or compliance concerns.

### When to use
- Relational database modeling, ERD, and schema design
- NoSQL document, key-value, wide-column, or graph data modeling
- Vector database and retrieval architecture design for semantic search and RAG
- SQL/NoSQL technology selection and tradeoff analysis
- Normalization, denormalization, indexing, and partitioning
- Transaction design, locking, isolation level, and concurrency control
- Data standards, glossary, naming rules, and metadata governance
- Capacity estimation, storage planning, hot/cold data separation, and backup strategy
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add first-fluke/oh-my-agent/oma-db@sha256:014f0bc3d62764d9

The line at the top of this page pins the label git:20261016.464232d, 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 badge

[![mdr](https://markdownregistry.com/badge/art_yy5tffoxugpowy7x.svg)](https://markdownregistry.com/a/art_yy5tffoxugpowy7x)

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

Versions

The registry has recorded 7 versions of this file, between Aug 13, 2026 and Oct 16, 2026, about one every 11 days.

versioncommittedcommitsizeaudit
git:20261016.464232d latest2026-10-16 464232d 13,494 BA view · diff
git:20261010.7f782962026-10-10 7f78296 12,473 BA view · diff
git:20261004.ff11f052026-10-04 ff11f05 12,441 BA view · diff
git:20260912.7e4c0d12026-09-12 7e4c0d1 11,958 BA view · diff
git:20260909.093aa3d2026-09-09 093aa3d 12,123 BA view · diff
git:20260905.43b3fc72026-09-05 43b3fc7 13,097 BA view · diff
git:20260813.f0fe3542026-08-13 f0fe354 13,097 BA 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 (13494 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

first-fluke/oh-my-agent · 1,374 stars · license MIT · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_yy5tffoxugpowy7x
GET https://markdownregistry.com/api/v1/resolve?ref=first-fluke/oh-my-agent/oma-db
GET https://markdownregistry.com/api/v1/blob/014f0bc3d62764d9665cb2b4b43709a2b02a5cc349d84f6ce1bc5dca4b4722f7

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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Every file in first-fluke/oh-my-agent

Other files named oma-db

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oma-db SKILL.md skill
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oma-db SKILL.md skill
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