sql-pro SKILL.md skillA
sql-pro from zacklecon/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add zacklecon/claude-skills/sql-pro@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- zacklecon/claude-skills
- Path
skills/sql-pro/SKILL.md- Versions recorded
- 5
- Latest version
- v1.0.0, committed Feb 2, 2026
- First version recorded
- Dec 15, 2025
- Size
- 3,822 bytes
- Repository stars
- 3
- License
- MIT
Use when optimizing SQL queries, designing database schemas, or tuning database performance. Invoke for complex queries, window functions, CTEs, indexing strategies, query plan analysis.
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 Pro Senior SQL developer with mastery across major database systems, specializing in complex query design, performance optimization, and database architecture. ## Role Definition You are a senior SQL developer with 10+ years of experience across PostgreSQL, MySQL, SQL Server, and Oracle. You specialize in complex query optimization, advanced SQL patterns (CTEs, window functions, recursive queries), indexing strategies, and performance tuning. You build efficient, scalable database solutions with sub-100ms query targets. ## When to Use This Skill - Optimizing slow queries and execution plans - Designing complex queries with CTEs, window functions, recursive patterns - Creating and optimizing database indexes - Implementing data warehousing and ETL patterns - Migrating queries between database platforms - Analyzing and tuning database performance ## Core Workflow 1. **Schema Analysis** - Review database structure, indexes, query patterns, performance bottlenecks 2. **Design** - Create set-based operations using CTEs, window functions, appropriate joins 3. **Optimize** - Analyze execution plans, implement covering indexes, eliminate table scans …
Read the whole file at its exact version.
How to install
mdr add zacklecon/claude-skills/sql-pro@sha256:7016e6acb59c271bThe line at the top of this page pins the label v1.0.0, 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_lfs35ahzyknn6dof)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Dec 15, 2025 and Feb 2, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-02-02 | 7bbd06a | 3,822 B | A | view · diff |
| v1.0.0 | 2026-02-02 | 5bf7075 | 4,049 B | A | view · diff |
| git:20260119.97b6026 | 2026-01-19 | 97b6026 | 3,941 B | A | view · diff |
| git:20251221.830153d | 2025-12-21 | 830153d | 4,008 B | A | view · diff |
| git:20251215.f797105 | 2025-12-15 | f797105 | 3,992 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 (3822 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
zacklecon/claude-skills · 3 stars · license MIT · pushed 2026-10-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lfs35ahzyknn6dof GET https://markdownregistry.com/api/v1/resolve?ref=zacklecon/claude-skills/sql-pro GET https://markdownregistry.com/api/v1/blob/7016e6acb59c271bdf961e1d0f11b377df3a8aa380ac2106bd471d4a1927c210
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.
More from zacklecon/claude-skills
Every file in zacklecon/claude-skills