dev-database-patterns SKILL.md skillA
dev-database-patterns from joaoguirunas/team-os is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add joaoguirunas/team-os/dev-database-patterns@v1.1Pins v1.1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- joaoguirunas/team-os
- Path
.claude/skills/dev-database-patterns/SKILL.md- Versions recorded
- 2
- Latest version
- v1.1, committed Sep 26, 2026
- First version recorded
- Apr 23, 2026
- Size
- 6,740 bytes
- Repository stars
- 5
- License
- MIT
Padrões de banco de dados para software complexo — migrations seguras, indexing strategy, N+1 detection, soft deletes, connection pooling.
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
# Database Patterns — Software Complexo ## Migration Safety Protocol **Nunca aplicar migration sem este protocolo:** ```bash # 1. Snapshot — estado antes pg_dump $DATABASE_URL --schema-only > backups/schema-$(date +%Y%m%d-%H%M%S).sql # 2. Dry-run — verificar sem commitar (BEGIN + ROLLBACK) psql $DATABASE_URL <<'EOF' BEGIN; \i migrations/001_add_users_table.sql -- Verificar resultado sem commitar SELECT COUNT(*) FROM users; \d users ROLLBACK; -- Desfaz tudo — apenas verificação EOF # 3. Apply — executar de verdade psql $DATABASE_URL -f migrations/001_add_users_table.sql # 4. Smoke test — verificar integridade após apply real psql $DATABASE_URL -c "SELECT COUNT(*) FROM users;" psql $DATABASE_URL -c "\d users" # 5. Rollback disponível (executar se smoke test falhar) psql $DATABASE_URL -f migrations/001_add_users_table.rollback.sql ``` > **Nota:** PostgreSQL não tem flag `--dry-run` nativo. O dry-run correto é sempre via `BEGIN/ROLLBACK` — executa a migration em transação e faz rollback sem commitar. ## Migration Structure Cada migration tem arquivo de rollback correspondente: ``` migrations/ ├── 001_create_users.sql ├── 001_create_users.rollback.sql …
Read the whole file at its exact version.
How to install
mdr add joaoguirunas/team-os/dev-database-patterns@sha256:1a31d052f0ca322bThe line at the top of this page pins the label v1.1, 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.
[](https://markdownregistry.com/a/art_6k2lyt5a22x3tj2x)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Apr 23, 2026 and Sep 26, 2026, about one every 156 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.1 latest | 2026-09-26 | 8a9bf22 | 6,740 B | A | view · diff |
| v1.1 | 2026-04-23 | b70017d | 6,738 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6740 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
joaoguirunas/team-os · 5 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6k2lyt5a22x3tj2x GET https://markdownregistry.com/api/v1/resolve?ref=joaoguirunas/team-os/dev-database-patterns GET https://markdownregistry.com/api/v1/blob/1a31d052f0ca322b81980ccfa12f2971cc969b7b35a6f749c95ac06d562ed414
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.