data-sql-optimization SKILL.md skillA
data-sql-optimization 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/data-sql-optimization@v1.0Pins v1.0 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/data-sql-optimization/SKILL.md- Versions recorded
- 3
- Latest version
- v1.0, committed Sep 26, 2026
- First version recorded
- Jun 19, 2026
- Size
- 20,552 bytes
- Repository stars
- 5
- License
- MIT
Otimização de SQL para sistemas OLTP — análise de EXPLAIN, indexação, schema design, migrations, alta disponibilidade (HA) e segurança nas principais plataformas SQL. Use ao investigar query lenta ou desenhar um banco relacional.
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
# SQL Optimization — Comprehensive Reference This skill provides actionable checklists, patterns, and templates for **transactional (OLTP) SQL optimization**: measurement-first triage, EXPLAIN/plan interpretation, balanced indexing (avoiding over-indexing), performance monitoring, schema evolution, migrations, backup/recovery, high availability, and security. **Supported Platforms:** PostgreSQL, MySQL, SQL Server, Oracle, SQLite **For OLAP/Analytics:** See [data-lake-platform](../data-lake-platform/SKILL.md) (ClickHouse, DuckDB, Doris, StarRocks) --- ## Quick Reference | Task | Tool/Framework | Command | When to Use | |------|----------------|---------|-------------| | Query Performance Analysis | EXPLAIN ANALYZE | `EXPLAIN (ANALYZE, BUFFERS) SELECT ...` (PG) / `EXPLAIN ANALYZE SELECT ...` (MySQL) | Diagnose slow queries, identify missing indexes | | Find Slow Queries | pg_stat_statements / slow query log | `SELECT * FROM pg_stat_statements ORDER BY total_exec_time DESC LIMIT 10;` | Identify performance bottlenecks in production | …
Read the whole file at its exact version.
How to install
mdr add joaoguirunas/team-os/data-sql-optimization@sha256:5df0bd66e3b5e4baThe line at the top of this page pins the label v1.0, 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_vhrm6qof7rfav5g3)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jun 19, 2026 and Sep 26, 2026, about one every 50 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0 latest | 2026-09-26 | 8a9bf22 | 20,552 B | A | view · diff |
| v1.0 | 2026-09-05 | 1e1acb4 | 20,449 B | A | view · diff |
| git:20260619.65743d2 | 2026-06-19 | 65743d2 | 20,599 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 (20552 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_vhrm6qof7rfav5g3 GET https://markdownregistry.com/api/v1/resolve?ref=joaoguirunas/team-os/data-sql-optimization GET https://markdownregistry.com/api/v1/blob/5df0bd66e3b5e4ba70dd8bc9237a07ca42f3da299f1e8c125413478c19b8d1e0
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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