sota-ruby

sota-ruby is a skill for Claude Code from martinholovsky/SOTA-skills. It costs 275 tokens per session (2,171 once invoked), scanned A, original, CC-BY-4.0.

A set of modern Ruby coding and security rules for Ruby 3.4 and newer, covering style, typing, and common web-application risks.

In plain words
What is it for?
Writing or auditing Ruby applications using modern language features, immutable design, and tools such as RBS, Sorbet, or Steep.
Why use it?
It helps produce consistent Ruby code and catch issues such as database injection, cross-site scripting, unsafe data assignment, and request-forgery attacks.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the sota-skills plugin — 42 skills, 1 hook shipped together

Good fit Writing or auditing Ruby applications using modern language features, immutable design, and tools such as RBS, Sorbet, or Steep.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/martinholovsky/sota-skills/sota-ruby
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 martinholovsky/SOTA-skills --skill sota-ruby
Clone the repo
git clone --depth 1 https://github.com/martinholovsky/SOTA-skills

Made for: Claude Code.

Or install sota-skills, the plugin that ships this one along with the rest of its 42 skills, 1 hook.

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 sota-ruby

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/martinholovsky/sota-skills/sota-ruby"><img src="https://agentmods.dev/badge/skills/martinholovsky/sota-skills/sota-ruby.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 275 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,171 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 $0.00275 $0.02171
Opus 5 $0.00138 $0.01086
Sonnet 5 $0.00055 $0.00434
Haiku 4.5 $0.00028 $0.00217

Measured 8d ago against content hash 39124b14a8e6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

sota-ruby 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 8d 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.

skills/sota-ruby/SKILL.md · 126 lines

The source is not reproduced here

Licensed CC-BY-4.0

The repository is licensed CC-BY-4.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

5 files 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. 8d ago First seen · 126 lines · 275 tokens per session scan A 39124b14a8e6

Subscribe to this mod's changes

sota-ruby is a skill published in the GitHub repository martinholovsky/SOTA-skills (18 stars, last pushed yesterday), licensed CC-BY-4.0. It adds 275 tokens to every session and 2,171 once invoked, about $0.0014 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 2026-08-30.

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