claude-builder

Create a new specialized Claude Code subagent

Create a new Claude Code hook for event-driven automation

Scaffold a new Claude Code plugin structure

Create a new Claude Code Skill with intelligent defaults

Validates Claude Code plugin directory structures and organization. Invoke when checking plugins, verifying installations, or ensuring proper setup of Skills/Agents/Commands/Hooks. Checks directory layout, required files, naming conventions, and component organization.

Specialized in validating YAML frontmatter in Claude Code Skills and subagents. Invoke when checking Skills, subagents, or other .md files with YAML frontmatter for correctness. Validates syntax, required fields, field constraints, and best practices.

Advises on choosing the right Claude Code extensibility approach (Skills, Commands, Subagents, Hooks, Plugins, MCP, Output Styles). Activates when user discusses extending Claude Code, creating automation, or is unsure which feature to use. Analyzes use cases and recommends appropriate solutions with trade-off explanations. Use when user mentions "should I use", "what's the best way", "skill or command", "which approach", or discusses extensibility options.

Creates and configures Claude Code hooks for event-driven automation. Activates when user wants to automate tasks, create event handlers, add formatting/logging/notifications, or ensure deterministic behaviors. Updates settings.json safely with hook configurations. Use when user mentions "create hook", "automate", "on save", "pre/post tool", "notification", "formatting hook", or wants always-on behaviors.

Scaffolds complete Claude Code plugin structures with all necessary directories, manifest, and documentation. Activates when user wants to create a new plugin, package features together, or prepare for marketplace distribution. Creates plugin.json, directory structure, and starter documentation. Use when user mentions "create plugin", "new plugin", "scaffold plugin", "plugin structure", or "share via marketplace".

Generates new Claude Code Skills with intelligent defaults. Activates when user discusses creating a new skill, capability, or reusable workflow. Infers purpose from context, creates proper YAML frontmatter, suggests tool restrictions, and sets up supporting file structure. Use when user mentions "create a skill", "new skill", "skill for", or discusses adding reusable capabilities.

Generates custom Claude Code subagents with specialized expertise. Activates when user wants to create a subagent, specialized agent, or task-specific AI assistant. Creates properly formatted .md files with YAML frontmatter, suggests tool restrictions and model selection, generates effective system prompts. Use when user mentions "create subagent", "new agent", "specialized agent", "task-specific agent", or wants isolated context for domain-specific work.