How do I restrict a subagent's tool access?

You can define a 'tools' field in the subagent's YAML frontmatter to grant only necessary permissions, such as 'Read' only or specific 'Bash' command patterns.

Where should I save my custom Claude subagents?

Project-specific agents should be saved in .claude/agents/my-agent.md, while personal agents for individual use belong in ~/.claude/agents/my-agent.md.

What is the difference between a subagent and a skill?

Subagents are specialized assistants with their own system prompts and focused expertise for complex workflows, while skills are context-aware capabilities that enhance Claude's core behavior automatically.

Which model should I use for my subagent?

Sonnet is recommended for most tasks, Opus for complex architectural reasoning, and Haiku for fast, low-latency tasks like formatting or simple validations.

Claude Subagent Builder

Name: Claude Subagent Builder
Author: pr-pm

bypr-pm

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Developer Tools

Provides expert guidance and implementation patterns for creating, configuring, and troubleshooting specialized Claude Code subagents.

The Agent Builder skill empowers developers to extend Claude Code's capabilities by creating specialized subagents tailored for specific domains like code review, debugging, or data analysis. It provides structured frameworks for system prompt engineering, tool access configuration, and model selection, ensuring that your custom AI assistants are focused, efficient, and reliable. Whether you are troubleshooting delegation patterns or designing a multi-agent workflow, this skill offers the implementation patterns and best practices needed to build high-performance subagents within the Claude ecosystem.

Key Features

0164 GitHub stars

02Standardized subagent file structure and deployment patterns

03Model selection strategies (Sonnet vs. Opus vs. Haiku)

04Expert system prompt engineering for specialized AI roles

05Troubleshooting for agent invocation and delegation issues

06Granular tool access and permission configuration

Use Cases

01Designing multi-agent workflows for complex data analysis tasks

02Configuring a dedicated debugging agent with restricted bash access

03Creating a specialized security-focused code reviewer subagent

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add pr-pm/prpm agent-builder

For use in Claude.ai and ChatGPT

Download Skill