d2

claude-toolshed

A plugin marketplace for Claude Code — install pre-packaged skills directly into your Claude environment.

Trust warning: Plugins can execute arbitrary commands on your machine. Review a plugin's code before installing it.

Contents

• Install
• Plugins
  • mermaid
  • d2
  • merge-checks
  • dev-setup
  • trim-md
  • paperclip
  • plugin-updater

Install

Add the marketplace, then install any plugin:

/plugin marketplace add diegomarino/claude-toolshed

/plugin install mermaid@claude-toolshed
/plugin install d2@claude-toolshed
/plugin install merge-checks@claude-toolshed
/plugin install dev-setup@claude-toolshed
/plugin install trim-md@claude-toolshed
/plugin install paperclip@claude-toolshed
/plugin install plugin-updater@claude-toolshed

Plugins

Plugin	Description
mermaid	Generate, validate, render Mermaid diagrams from text or code (powered by beautiful-mermaid)
d2	Generate, validate, render D2 diagrams from text or code — no Node.js required
merge-checks	Audit code changes across 13 quality dimensions
dev-setup	Generate dev server lifecycle scripts with pool-based port isolation (20000-29999)
trim-md	Trim and optimize markdown files for LLM agent consumption
paperclip	Audit Paperclip AI agent organizations — health, governance, tokens, workspace
plugin-updater	Auto-update third-party marketplace plugins on session start

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mermaid

Generate, validate, render, and manage Mermaid diagrams from natural language or existing codebases. Powered by beautiful-mermaid for themed rendering.

Default Mermaid → beautiful-mermaid (Dracula theme)

Command	What it does
/mermaid-diagram	Describe what you want — auto-detects the right diagram type
/mermaid-architect	Point at a codebase — generates a suite of relevant diagrams
/mermaid-validate	Check Mermaid syntax in .md files or directories
/mermaid-render	Render .mmd files to SVG
/mermaid-config	Set theme, output format, and check dependencies

/mermaid-diagram "user login with JWT and refresh token"
/mermaid-architect src/

Full documentation → — diagram types, code-to-diagram routing, configuration, troubleshooting

7 diagram types:

Sequence

Architecture

Entity-Relationship

Activity

State

Class

Deployment

15 themes from beautiful-mermaid — same diagram, different themes: