claude-skills-marketplace: Instructions file for Claude Code

CLAUDE.md

claude-skills-marketplace CLAUDE.md is an instructions file for Claude Code from mhattingpete/claude-skills-marketplace. It costs 4,792 tokens per session, scanned A, original, Apache-2.0.

Project instructions for developing a marketplace of reusable Claude Code skills and plugins. A plugin is a packaged add-on, and a skill is a set of instructions that guides a specific task.

In plain words
What is it for?
Use them when creating or updating marketplace plugins, skills, metadata, and supporting files.
Why use it?
They provide shared rules for the repository's structure, naming, and plugin contents so new additions fit the existing marketplace.

Instructions file for Claude Code

Written for Claude Code: Claude Code plugin machinery. Also seen: mentions subagents; names the AskUserQuestion tool; mentions Claude Code.

This is mhattingpete/claude-skills-marketplace's own configuration. It tells Claude Code how to work on claude-skills-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-skills-marketplace configures โ†’

Reuse

Borrowing it

Nothing to install: this file belongs to mhattingpete/claude-skills-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/mhattingpete/claude-skills-marketplace/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/mhattingpete/claude-skills-marketplace

Made for: Claude Code.

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Per session 4,792 This file is loaded in full into every session.
When invoked 4,792 The same file โ€” it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file โ€” 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 $0.04792 $0.04792
Opus 5 $0.02396 $0.02396
Sonnet 5 $0.00958 $0.00958
Haiku 4.5 $0.00479 $0.00479

Measured 13d ago against content hash 05c2345f69fc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

claude-skills-marketplace CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories โ€” prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency โ€” measured 13d 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 ยท 799 lines

How it starts

The opening of the file, as written. The whole thing โ€” 799 lines โ€” stays where its author put it; the contents beside it link to each section on GitHub.

Claude Code Instructions for Skills Marketplace Development

Repository: claude-skills-marketplace Purpose: Development guidelines for creating high-quality Claude Code skills and plugins


๐ŸŽฏ Repository Context

This is the Claude Skills Marketplace - a collection of reusable skills and plugins for Claude Code. When working in this repository, you are helping develop skills that will be used by many developers.

Current Plugins

  1. engineering-workflow-skills (v1.1.0)

    • feature-planning, test-fixing, git-pushing, review-implementing
    • plan-implementer agent
  2. visual-documentation-skills (v1.0.0)

    • visual-html-creator for stunning HTML documentation
  3. productivity-skills (v1.0.0)

    • conversation-analyzer, code-auditor, project-bootstrapper, codebase-documenter

๐Ÿ—๏ธ Plugin Structure Standards

Required Directory Structure

{plugin-name}-plugin/
โ”œโ”€โ”€ .claude-plugin/
โ”‚   โ””โ”€โ”€ plugin.json              # REQUIRED: Plugin metadata ONLY (no skills array)
โ”œโ”€โ”€ skills/                      # Skills directory (auto-discovered)
โ”‚   โ””โ”€โ”€ {skill-name}/
โ”‚       โ”œโ”€โ”€ SKILL.md             # REQUIRED: Skill specification
โ”‚       โ”œโ”€โ”€ references/          # OPTIONAL: Reference materials (markdown)
โ”‚       โ”‚   โ””โ”€โ”€ *.md             # Additional context/guides
โ”‚       โ””โ”€โ”€ scripts/             # OPTIONAL: Helper scripts
โ”‚           โ””โ”€โ”€ *.py             # Python scripts, shell scripts, etc.
โ”œโ”€โ”€ agents/                      # OPTIONAL: Agents directory (auto-discovered)
โ”‚   โ””โ”€โ”€ {agent-name}/
โ”‚       โ””โ”€โ”€ AGENT.md             # Agent specification
โ”œโ”€โ”€ commands/                    # OPTIONAL: Commands directory (auto-discovered)
โ”‚   โ””โ”€โ”€ {command-name}.md
โ”œโ”€โ”€ README.md                    # REQUIRED: Plugin documentation
โ”œโ”€โ”€ CHANGELOG.md                 # RECOMMENDED: Version history
โ””โ”€โ”€ EXAMPLES.md                  # RECOMMENDED: Usage examples

CRITICAL: Skills are auto-discovered!

  • Skills MUST be in skills/ subdirectory at plugin root
  • Skills are automatically discovered - NO listing in plugin.json
  • plugin.json contains ONLY metadata (name, version, description, author)
  • Same applies to agents/ and commands/ - all auto-discovered

Read the full file on GitHub ยท 799 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. 13d ago First seen ยท 799 lines ยท 4,792 tokens per session scan A 05c2345f69fc

Subscribe to this mod's changes

claude-skills-marketplace CLAUDE.md is an instructions file published in the GitHub repository mhattingpete/claude-skills-marketplace (671 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 4,792 tokens to every session, about $0.0240 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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