Plugin development toolkit — scaffolding, validation, skill review, and best-practice guidance for building Claude Code plugins
Use this agent when the user asks to "create an agent", "generate an agent", "build a new agent", "make me an agent that...", or describes agent functionality they need. Trigger when user wants to create autonomous agents for plugins.
Use this agent when the user asks to "validate my plugin", "check plugin structure", "verify plugin is correct", "validate plugin.json", "check plugin files", or mentions plugin validation. Also trigger proactively after user creates or modifies plugin components.
Use this agent when the user has created or modified a skill and needs quality review, asks to "review my skill", "check skill quality", "improve skill description", or wants to ensure skill follows best practices. Trigger proactively after skill creation.
Use when the user asks to "create a slash command", "add a command", "create a hook", "add a PreToolUse/PostToolUse hook", "create an agent", "write a subagent", "add MCP server", "integrate MCP", "configure MCP in plugin", "use .mcp.json", or needs guidance on any plugin component: commands, hooks, agents, MCP servers, or output styles.
Use when the user asks to "create a plugin", "scaffold a plugin", "understand plugin structure", "organize plugin components", "set up plugin.json", "configure plugin settings", "add LSP server", "configure language server", or needs guidance on plugin architecture, directory layout, manifest configuration, auto-discovery, or portable path references.
Use when the user wants to "create a skill", "add a skill to plugin", "write a new skill", "improve skill description", "organize skill content", "run skill evals", "benchmark skill performance", or needs guidance on skill structure, progressive disclosure, or skill development best practices for Claude Code plugins.
Uses power tools
Uses Bash, Write, or Edit tools
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A curated collection of Claude Code plugins
claude plugin marketplace add /path/to/k3m-marketplace
claude plugin search
claude plugin enable <plugin-name>
Create a new plugin directory under plugins/:
copier copy /path/to/dotclaude/templates/plugin plugins/
Register it in .claude-plugin/marketplace.json
Validate:
claude plugin validate plugins/<plugin-name>
See docs/ for complete cheatsheets on every plugin component type.
k3m.sh [email protected]
npx claudepluginhub karimstekelenburg/k3m-marketplace --plugin plugin-devRational Unified Process lifecycle management — state machine, artifact tracking, and autonomous orchestration for iterative software development
Personal invoice pipeline: scan Apple Mail, parse bank statements, match payments, generate EPC QR codes
Autonomous plugin-dev maintenance — discovers Claude Code features from official and community sources, diffs against plugin-dev, auto-patches, and creates PRs with full reports
Full spec implementation cycles with filesystem and GitHub backends. Orchestrates spec → plan → track → implement → review → test → verify → retro.
A starter plugin to demonstrate marketplace structure
Plugin development toolkit with skills for creating agents, commands, hooks, MCP integrations, and comprehensive plugin structure guidance
A comprehensive toolkit for creating, validating, and distributing Claude Code plugins
Ultimate plugin management toolkit with 4 auto-invoked Skills for creating, validating, auditing, and versioning plugins in the claude-code-plugins marketplace
Discover and audit all plugins in a Claude Code marketplace with installation status, versions, and component breakdown
Access thousands of AI prompts and skills directly in your AI coding assistant. Search prompts, discover skills, save your own, and improve prompts with AI.
Complete developer toolkit for Claude Code