What Plugin Developer Toolkit does in Claude
A comprehensive development toolkit for building Claude Code plugins. Features 7 specialized skills covering hook development (PreToolUse, PostToolUse, Stop, and 6 other event types), MCP server integration (stdio, SSE, HTTP, WebSocket), plugin structure and settings, slash command creation, agent development, and skill authoring. Includes 12+ working examples, 6 production-ready validation scripts, and approximately 21,000 words of documentation. The toolkit emphasizes security-first development, portable configurations using environment variables, and progressive disclosure patterns that balance context efficiency with comprehensive guidance when needed. How to use: Run /plugin-dev:create-plugin to start an 8-phase guided workflow that walks you through discovery, planning, design, implementation, validation, testing, and documentation. Ask questions like "how do I create a PreToolUse hook?", "how do I set up an MCP server?", or "what's the best plugin structure?" to load the relevant skill automatically.
Included skills (7)
- agent-development
- command-development
- hook-development
- mcp-integration
- plugin-settings
- plugin-structure
- skill-development
How to add Plugin Developer Toolkit to Claude
- 1
In Claude Code, run
/pluginand open the Discover tab. - 2 Search for Plugin Developer Toolkit and choose Install. In Cowork, add it from the plugin directory.
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Questions people ask
What does the Plugin Developer Toolkit plugin do in Claude?
A comprehensive development toolkit for building Claude Code plugins. Features 7 specialized skills covering hook development (PreToolUse, PostToolUse, Stop, and 6 other event types), MCP server integration (stdio, SSE, HTTP, WebSocket), plugin structure and settings, slash command creation, agent development, and skill authoring. Includes 12+ working examples, 6 production-ready validation scripts, and approximately 21,000 words of documentation. The toolkit emphasizes security-first development, portable configurations using environment variables, and progressive disclosure patterns that balance context efficiency with comprehensive guidance when needed. How to use: Run /plugin-dev:create-plugin to start an 8-phase guided workflow that walks you through discovery, planning, design, implementation, validation, testing, and documentation. Ask questions like "how do I create a PreToolUse hook?", "how do I set up an MCP server?", or "what's the best plugin structure?" to load the relevant skill automatically.
Is the Plugin Developer Toolkit plugin official?
It is made by Anthropic and carries the Anthropic verified mark in Anthropic’s directory. This site is independent and lists it from the official directory.