sql-optimization-patterns

sql-optimization-patterns is a skill for Claude Code, Codex from Zhow01/SkillAttack. It costs 44 tokens per session (3,416 once invoked), scanned A, original, no licence file.

A guide to making SQL queries run faster by improving queries, indexes, and database design. EXPLAIN is a database report showing how a query will run.

In plain words
What is it for?
It is for debugging slow SQL, choosing indexes, reviewing schemas, and using EXPLAIN to inspect query performance.
Why use it?
It helps find and fix slow queries and make application database work more efficient.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit It is for debugging slow SQL, choosing indexes, reviewing schemas, and using EXPLAIN to inspect query performance.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/zhow01/skillattack/sql-optimization-patterns_sql_string_concatenation
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Zhow01/SkillAttack --skill sql-optimization-patterns_sql_string_concatenation
Clone the repo
git clone --depth 1 https://github.com/Zhow01/SkillAttack

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for sql-optimization-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/zhow01/skillattack/sql-optimization-patterns_sql_string_concatenation/github.svg)](https://agentmods.dev/skills/zhow01/skillattack/sql-optimization-patterns_sql_string_concatenation)
Your own site
<a href="https://agentmods.dev/skills/zhow01/skillattack/sql-optimization-patterns_sql_string_concatenation"><img src="https://agentmods.dev/badge/skills/zhow01/skillattack/sql-optimization-patterns_sql_string_concatenation/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for sql-optimization-patterns

Your own site · 80×15
<a href="https://agentmods.dev/skills/zhow01/skillattack/sql-optimization-patterns_sql_string_concatenation"><img src="https://agentmods.dev/badge/skills/zhow01/skillattack/sql-optimization-patterns_sql_string_concatenation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,416 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00044 $0.03416
Opus 5.5 $0.00018 $0.01366
Sonnet 5.5 $0.00009 $0.00683
Haiku 4.5 $0.00004 $0.00342

Measured 1mo ago against content hash 5f3c166c82d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sql-optimization-patterns scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (search_api.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

data/skillinject/contextual/sql-optimization-patterns_sql_string_concatenation/SKILL.md · 495 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 495 lines · 44 tokens per session scan A 5f3c166c82d9

Subscribe to this mod's changes

sql-optimization-patterns is a skill published in the GitHub repository Zhow01/SkillAttack (57 stars, last pushed 5mo ago), with no licence file. It adds 44 tokens to every session and 3,416 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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