What is the difference between a Claude Agent and a Claude Skill?

Agents are specialized sub-roles with focused expertise invoked via the Task tool, whereas Skills are capability packages triggered automatically by the model's context.

Which model should I use for my subagent?

The 'inherit' setting is the recommended default as it adapts to the parent context, but you can specify 'haiku' for speed, 'sonnet' for balance, or 'opus' for complex reasoning.

Where should I store my custom Claude agents?

Project-specific agents should be stored in the 'agents/' directory of your repository, while personal agents are stored in '~/.claude/agents/'.

How do I trigger a custom subagent in Claude Code?

Subagents are invoked through the Task tool when users mention keywords defined in the agent's frontmatter description or explicitly request the agent by name.

What are the essential tools for a new subagent?

Unless you are strictly limiting an agent, the baseline recommended tools are Glob, Grep, Read, Skill, Task, and TodoWrite.

Claude Agent Development Kit

Name: Claude Agent Development Kit
Author: outfitter-dev

byoutfitter-dev

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Developer Tools

Standardizes the creation, configuration, and validation of specialized subagents within the Claude Code environment.

This skill provides a structured framework for building high-performance subagents that extend Claude Code's capabilities with domain-specific expertise. It guides developers through the entire agent lifecycle—from defining archetypes like Analyzers and Implementers to configuring YAML frontmatter and tool permissions. By offering standardized templates and validation checklists, the skill ensures that subagents are properly scoped, correctly triggered by user keywords, and equipped with the precise tools needed for tasks like security auditing, testing, or infrastructure deployment.

Key Features

01Pre-defined agent archetypes including Analyzers, Implementers, and Researchers

02Standardized YAML frontmatter schema for consistent agent configuration

0316 GitHub stars

04Automated validation checklists for naming conventions, tool sets, and descriptions

05Step-by-step workflow for agent discovery, design, implementation, and validation

06Template-based scaffolding for rapid creation of basic and advanced subagents

Use Cases

01Building a dedicated Security Reviewer subagent for vulnerability detection

02Configuring a specialized DevOps agent with restricted access to infrastructure tools

03Creating a project-specific documentation agent that uses WebSearch and WebFetch

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add outfitter-dev/agents claude-agent-development

For use in Claude.ai and ChatGPT

Download Skill