Test Fixing

Claude Skills Marketplace

A curated marketplace of Claude Code plugins for software engineering workflows.

Repository Structure

claude-skills-marketplace/
├── .claude-plugin/
│   └── marketplace.json              # Marketplace manifest
├── execution-runtime/                 # 🚀 Code execution environment (NEW!)
│   ├── api/                           # Importable API library
│   ├── mcp-server/                    # FastMCP server
│   ├── setup.sh                       # One-command installation
│   └── README.md
├── engineering-workflow-plugin/       # Engineering workflow plugin
│   ├── .claude-plugin/
│   │   └── plugin.json               # Plugin manifest
│   ├── agents/
│   │   └── plan-implementer.md       # Plan implementation agent
│   ├── skills/
│   │   ├── feature-planning/         # Feature planning skill
│   │   ├── git-pushing/              # Git automation skill
│   │   ├── review-implementing/      # Code review skill
│   │   └── test-fixing/              # Test fixing skill
│   └── README.md
├── visual-documentation-plugin/       # Visual documentation plugin
│   ├── .claude-plugin/
│   │   └── plugin.json               # Plugin manifest
│   ├── skills/
│   │   ├── architecture-diagram-creator/  # Architecture diagram skill
│   │   ├── dashboard-creator/        # Dashboard creation skill
│   │   ├── flowchart-creator/        # Flowchart creation skill
│   │   ├── technical-doc-creator/    # Technical documentation skill
│   │   └── timeline-creator/         # Timeline creation skill
│   ├── EXAMPLES.md
│   └── README.md
├── productivity-skills-plugin/        # Productivity & optimization plugin
│   ├── .claude-plugin/
│   │   └── plugin.json               # Plugin manifest
│   ├── skills/
│   │   ├── code-auditor/             # Code auditing skill
│   │   ├── codebase-documenter/      # Codebase documentation skill
│   │   ├── conversation-analyzer/    # Usage analysis skill
│   │   └── project-bootstrapper/     # Project setup skill
│   └── README.md
├── code-operations-plugin/            # Code manipulation plugin
│   ├── .claude-plugin/
│   │   └── plugin.json               # Plugin manifest
│   ├── skills/
│   │   ├── code-execution/           # 🚀 Python execution skill (NEW!)
│   │   │   └── examples/             # Example scripts
│   │   ├── code-transfer/            # Code transfer skill
│   │   │   └── scripts/
│   │   │       └── line_insert.py    # Line-based insertion script
│   │   ├── code-refactor/            # Bulk refactoring skill
│   │   └── file-operations/          # File analysis skill
│   └── README.md
├── LICENSE
└── README.md

What are Skills and Agents?

Skills are model-invoked capabilities that extend Claude Code's functionality. Unlike slash commands that require explicit user activation, Skills are automatically triggered by Claude based on context and the Skill's description.

Each Skill consists of a

SKILL.md

file with:

• YAML frontmatter (name, description, metadata)
• Detailed instructions for Claude
• Optional supporting files (scripts, templates, references)

Agents are specialized Claude instances that can be invoked by Claude to handle specific types of work. They run independently with their own context and can use different models optimized for their task.

Each Agent consists of an

AGENT.md

file with:

• YAML frontmatter (name, description, model selection)
• Specialized instructions and constraints
• Decision-making frameworks for their domain

Skills and Agents work together: Skills can orchestrate when to invoke Agents, and Agents can use Skills while executing their tasks.

🚀 NEW: Execution Runtime (90%+ Token Savings)

The marketplace now includes a code execution environment implementing the Anthropic code execution pattern. Instead of loading code through context, Claude executes Python locally with API access—achieving 90-99% token reduction for bulk operations.

Quick Benefits

✅ Massive token savings: Process 100 files with 1K tokens instead of 100K ✅ Faster operations: Local execution vs multiple API round-trips ✅ Stateful workflows: Resume multi-step refactoring across sessions ✅ Auto-secure: PII/secret masking, sandboxed execution

Setup (2 minutes)

# After installing marketplace plugin
~/.claude/plugins/marketplaces/mhattingpete-claude-skills/execution-runtime/setup.sh

When It Activates

Skills automatically use execution mode for:

• Bulk operations (10+ files)
• Complex multi-step workflows
• Iterative processing
• Codebase-wide analysis

Example: "Rename getUserData to fetchUserData in all Python files"

• Without execution: ~25,000 tokens (read/edit 50 files)
• With execution: ~600 tokens (script + summary) - 97.6% savings

Full documentation →

Installation

Ins