data-write-query

data-write-query is a skill for Claude Code, Codex from evolution-foundation/evo-nexus. It costs 0 tokens per session (2,798 once invoked), scanned A, original, no licence file.

An SQL-writing assistant for PostgreSQL that builds queries with joins, common table expressions, aggregations, and performance practices.

In plain words
What is it for?
It helps create, improve, and optimize SQL for CRM and other PostgreSQL data systems.
Why use it?
It translates a plain data question into structured SQL and helps avoid inefficient queries against large tables.

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/evolution-foundation/evo-nexus/data-write-query
Any agent
npx skills add evolution-foundation/evo-nexus --skill data-write-query
Clone the repo
git clone --depth 1 https://github.com/evolution-foundation/evo-nexus

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 data-write-query

README.md
[![agentmods](https://agentmods.dev/badge/skills/evolution-foundation/evo-nexus/data-write-query.svg)](https://agentmods.dev/skills/evolution-foundation/evo-nexus/data-write-query)
Your own site
<a href="https://agentmods.dev/skills/evolution-foundation/evo-nexus/data-write-query"><img src="https://agentmods.dev/badge/skills/evolution-foundation/evo-nexus/data-write-query.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,798 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.02798
Opus 5 $0.00000 $0.01399
Sonnet 5 $0.00000 $0.00560
Haiku 4.5 $0.00000 $0.00280

Measured yesterday against content hash 17fe14a37565, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

data-write-query 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 yesterday.

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.

.claude/skills/data-write-query/SKILL.md · 314 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. yesterday First seen · 314 lines · 0 tokens per session scan A 17fe14a37565

Subscribe to this mod's changes

data-write-query is a skill published in the GitHub repository evolution-foundation/evo-nexus (530 stars, last pushed 3mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 2,798 tokens. 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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