kit-sql

kit-sql is a skill for Claude Code from altafino/FableClaudeMDForOpus. It costs 40 tokens per session (124 once invoked), scanned A, original, no licence file.

A set of safety checks for writing SQL, database queries, and migrations. It covers NULL values, JOIN mistakes, unsafe changes, injection risks, and query cost.

In plain words
What is it for?
Reviewing SQL, query-builder and ORM queries, and database migrations for correctness and safety.
Why use it?
Database queries can silently return wrong results, expose data, or damage records. These checks help identify common problems before they cause harm.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Reviewing SQL, query-builder and ORM queries, and database migrations for correctness and safety.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/altafino/fableclaudemdforopus/kit-sql
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 altafino/FableClaudeMDForOpus --skill kit-sql
Clone the repo
git clone --depth 1 https://github.com/altafino/FableClaudeMDForOpus

Made for: Claude Code.

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 kit-sql

README.md
[![agentmods](https://agentmods.dev/badge/skills/altafino/fableclaudemdforopus/kit-sql/github.svg)](https://agentmods.dev/skills/altafino/fableclaudemdforopus/kit-sql)
Your own site
<a href="https://agentmods.dev/skills/altafino/fableclaudemdforopus/kit-sql"><img src="https://agentmods.dev/badge/skills/altafino/fableclaudemdforopus/kit-sql/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 kit-sql

Your own site · 80×15
<a href="https://agentmods.dev/skills/altafino/fableclaudemdforopus/kit-sql"><img src="https://agentmods.dev/badge/skills/altafino/fableclaudemdforopus/kit-sql.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 124 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 $0.00040 $0.00124
Opus 5.5 $0.00016 $0.00050
Sonnet 5.5 $0.00008 $0.00025
Haiku 4.5 $0.00004 $0.00012

Measured 1mo ago against content hash 78afabcd1d69, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

kit-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 1mo 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.

.claude/skills/kit-sql/SKILL.md · 11 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

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 · 11 lines · 40 tokens per session scan A 78afabcd1d69

Subscribe to this mod's changes

kit-sql is a skill published in the GitHub repository altafino/FableClaudeMDForOpus (7 stars, last pushed 3mo ago), with no licence file. It adds 40 tokens to every session and 124 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 2026-08-31.

Related

Other skills, from other repositories

ecto-patterns

Use when a task touches Ecto, even a how-to question: schemas, changesets, validations, queries, preloads, Multi, migrations, constraints, money fields. Load it before writing Ecto code. Skip for Ash.

oliver-kriska/claude-elixir-phoenix · 51 tokens

phoenix-contexts

Phoenix context design — creating/splitting contexts, Scope (1.8+), Ecto.Multi, PubSub, routers, plugs, controllers. Use when editing contexts, routers, or designing boundaries.

oliver-kriska/claude-elixir-phoenix · 46 tokens

ecto-n1-check

Detect N+1 query anti-patterns specifically — Repo calls inside Enum/for loops, missing preloads on associations. Use when N+1 is explicitly suspected, NOT for unrelated Ecto questions or wider database performance.

oliver-kriska/claude-elixir-phoenix · 49 tokens

ecto-constraint-debug

Debug Ecto constraint violations - trace triggers, check migrations, find duplicate data. Use when seeing uniqueconstraint, foreignkeyconstraint, or checkconstraint errors.

oliver-kriska/claude-elixir-phoenix · 36 tokens

055-design-parallel-change

Use when a database schema or data-meaning change needs Parallel Change, including expand, migrate, and contract sequencing for column renames, type or data reinterpretation, large-table backfills, relationship-table changes, enum/status transitions, timezone/default changes, and index or uniqueness changes. This…

jabrena/plinth · 94 tokens

705-technologies-nosql-mongodb

Use when you need framework-agnostic MongoDB and non-relational database query guidance — document schema design, collection modeling, JSON Schema validation, indexes, aggregation pipelines, query performance, consistency trade-offs, transactions, and operational safety — without choosing Spring Boot, Quarkus, or…

jabrena/plinth · 116 tokens