sql

SQL is the language used to read and change data in relational databases, where information is stored in tables. It covers queries, joins, filtering, sorting, grouping, and data changes.

In plain words
What is it for?
Use it for database queries, data analysis, and CRUD work: creating, reading, updating, and deleting records.
Why use it?
It provides a standard way to find, combine, summarize, create, update, and remove database records.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/dhaupin/vant/vant-skill-sql
Any agent
npx skills add dhaupin/vant --skill vant-skill-sql
Clone the repo
git clone --depth 1 https://github.com/dhaupin/vant

Made for: Claude Code, Codex.

Per session 6 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 222 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00006 $0.00222
Opus 5 $0.00003 $0.00111
Sonnet 5 $0.00001 $0.00044
Haiku 4.5 $0.00001 $0.00022

Measured 2d ago against content hash 5a0bfb0288f4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sql 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 2d ago.

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.

models/public/skills/vant-skill-sql/SKILL.md · 67 lines

What it actually says

SQL

Database query language.


When To Use

  • Database queries
  • Data analysis
  • CRUD operations

What To Do

1. Basic

SELECT columns FROM table
WHERE condition
ORDER BY column
LIMIT n

2. Operations

Keyword What
SELECT Read
INSERT Create
UPDATE Update
DELETE Remove
JOIN Combine

3. Aggregates

SELECT COUNT(*), SUM(col), AVG(col), MIN(col), MAX(col)
FROM table
GROUP BY col
HAVING count > 1

4. Subqueries

SELECT * FROM users
WHERE id IN (SELECT user_id FROM orders)

Role: SQL Developer
Input: Query
Output: Results

Query.

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. 2d ago First seen · 67 lines · 6 tokens per session scan A 5a0bfb0288f4

Subscribe to this mod's changes

sql is a skill published in the GitHub repository dhaupin/vant (10 stars, last pushed 2d ago), licensed MIT. It adds 6 tokens to every session and 222 once invoked, about $0.0000 per session on Opus 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 2026-08-31.

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