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claude-ruby-marketplace: Instructions file for Claude Code

CLAUDE.md

claude-ruby-marketplace CLAUDE.md is an instructions file for Claude Code from hoblin/claude-ruby-marketplace. It costs 666 tokens per session, scanned A, original, MIT.

Instructions for a marketplace that packages add-ons for Ruby and Rails development, including code intelligence tools, skills, commands, and agents.

In plain words
What is it for?
Use it to add or edit marketplace plugins, maintain their metadata and versions, and follow the required development structure.
Why use it?
It explains the repository layout and the checks needed before changing plugins, hooks, or skills.

Instructions file for Claude Code

Written for Claude Code: Claude Code plugin machinery. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is hoblin/claude-ruby-marketplace's own configuration. It tells Claude Code how to work on claude-ruby-marketplace itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-ruby-marketplace configures →

not rated 37repo +1 today A scan 666 tokens original MIT
View source ↗ hoblin/claude-ruby-marketplace
Reuse

Borrowing it

Nothing to install: this file belongs to hoblin/claude-ruby-marketplace. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/hoblin/claude-ruby-marketplace/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/hoblin/claude-ruby-marketplace

Made for: Claude Code.

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README.md
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<a href="https://agentmods.dev/instructions/hoblin/claude-ruby-marketplace/claude-md"><img src="https://agentmods.dev/badge/instructions/hoblin/claude-ruby-marketplace/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 666 This file is loaded in full into every session.
When invoked 666 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00666 $0.00666
Opus 5 $0.00333 $0.00333
Sonnet 5 $0.00133 $0.00133
Haiku 4.5 $0.00067 $0.00067

Measured 8d ago against content hash e3f455b6549d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

claude-ruby-marketplace CLAUDE.md 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.

CLAUDE.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code when working with this repository.

Repository Purpose

This is a Claude Code plugin marketplace for Ruby and Rails development. It contains:

  • LSP plugins (ruby-lsp, typeprof)
  • Skills plugins (rspec, draper, activerecord, etc.)
  • Commands and agents for Ruby workflows

Before Editing

REQUIRED: Activate relevant skills before editing:

  • Editing skills? → Skill: plugin-dev:skill-development
  • Editing plugin structure? → Skill: plugin-dev:plugin-structure
  • Editing hooks? → Skill: plugin-dev:hook-development

Directory Structure

.claude-plugin/
  marketplace.json       # Plugin catalog (required)
plugins/
  ruby-lsp/              # LSP plugin
    .claude-plugin/
      plugin.json
    .lsp.json            # LSP server config
    README.md
  rspec/                 # Skills plugin
    .claude-plugin/
      plugin.json
    skills/
      rspec/
        SKILL.md
        references/
        examples/

Versioning

This marketplace uses two levels of versioning:

Plugin Versions (plugin.json + marketplace.json)

Each plugin has a version in its plugin.json. Bump when:

  • Plugin structure changes
  • New skills/commands/agents added to the plugin
  • Plugin configuration changes

IMPORTANT: Always sync version in both plugins/<name>/.claude-plugin/plugin.json AND .claude-plugin/marketplace.json.

Skill Versions (SKILL.md frontmatter)

Each skill has its own version in SKILL.md frontmatter. Bump when:

  • Skill content changes (references, examples, trigger phrases)
  • Skill guidance is updated

Before committing:

  1. Identify what changed (git status)
  2. For skill content changes → bump version in SKILL.md frontmatter
  3. For plugin structure changes → bump version in plugin.json
  4. Version bump levels:
    • patch (0.0.x): Bug fixes, typos
    • minor (0.x.0): New features, content additions
    • major (x.0.0): Breaking changes

Testing Plugins

# Test locally before committing
claude --plugin-dir ./plugins/ruby-lsp

# Or install from local marketplace
/plugin marketplace add ./
/plugin install ruby-lsp@claude-ruby-marketplace

Read the full file on GitHub · 94 lines

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 · 94 lines · 666 tokens per session scan A e3f455b6549d

Subscribe to this mod's changes

claude-ruby-marketplace CLAUDE.md is an instructions file published in the GitHub repository hoblin/claude-ruby-marketplace (37 stars, last pushed today), licensed MIT. It adds 666 tokens to every session, about $0.0033 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.

Claude CodeLanguagesRubyactiverecordai-toolsclaude-pluginscode-qualitydeveloper-productivity
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