Architecture Diagram Creator

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
…

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

Install from Marketplace

# In Claude Code - installs the entire plugin with all skills and agents
/plugin marketplace add mhattingpete/claude-skills-marketplace

This installs the engineering-workflow-plugin which includes all skills and the plan-implementer agent.

To install individual plugins:

# Install only engineering workflows
/plugin marketplace add mhattingpete/claude-skills-marketplace/engineering-workflow-plugin

# Install only visual documentation
/plugin marketplace add mhattingpete/claude-skills-marketplace/visual-documentation-plugin

# Install only productivity skills
/plugin marketplace add mhattingpete/claude-skills-marketplace/productivity-skills-plugin

# Install only code operations
/plugin marketplace add mhattingpete/claude-skills-marketplace/code-operations-plugin

Available Plugins

Engineering Workflow Plugin

Skills for common software engineering workflows including git operations, test fixing, code review implementation, and feature planning.

View Plugin Documentation →

Visual Documentation Plugin

Skills for creating stunning visual HTML documentation with modern UI design, SVG diagrams, flowcharts, dashboards, timelines, and comprehensive project architecture diagrams.

View Plugin Documentation →

Productivity Skills Plugin

Productivity and workflow optimization skills for analyzing usage patterns, auditing code quality, bootstrapping projects, and generating comprehensive documentation.

View Plugin Documentation →

Code Operations Plugin

High-precision code manipulation operations including line-based insertion, bulk refactoring, and file analysis. Converted from code-copy-mcp to native Claude Code skills.