AI Agent Skill for Claude Code: Master Agent Development

Product Overview

The AI Agent Skill for Claude Code: Master Agent Development supports the creation and refinement of Claude Code sub-agent definitions. This skill is designed to assist developers in crafting specialized AI assistants by ensuring compliance with Anthropic best practices. The tool is automatically invoked when the user requests tasks such as "create an agent", "design a sub-agent", or "make a specialist".

What this skill does

• Assists in defining sub-agents with clear and focused responsibilities.
• Ensures the inclusion of proper YAML frontmatter, system prompts, and tool access limitations.
• Provides guidance on writing discovery-optimized descriptions, underlining what an agent does, when it should be used, and highlighting examples and trigger terms.
• Encourages the best practice of single-agent responsibility to promote efficient usage and prevent overlap.

Who it is for

This skill is intended for developers and teams that are engaged in creating or refining AI coding agents using Claude Code, Cursor, or Codex. It is particularly beneficial for those seeking to adhere to structured guidelines while developing AI capabilities.

Use cases

• Developers needing to design a sub-agent with precise tool restrictions for specialized tasks.
• Teams aiming to implement structured and standardized AI solutions for specific domains.
• Project leaders requiring consistency in agent responsibilities and optimized agent descriptions to facilitate better discovery and usage.

Technical details

• The skill utilizes the "agent-skills", "aiapplication", and "agent-dev" capabilities/tools.
• By following the principle of least privilege, it supports a tool restriction strategy, either omitting tools to inherit from the main conversation or specifying a necessary tools list.

Source & Licence

This package is built on open-source work published by andisab (andisab/swe-marketplace) and distributed under MIT. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.

Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.

Delivery & Support

• Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
• Format: ZIP archive containing the skill files, documentation and the original licence.
• Support: support@mcpcart.com — we aim to reply within 2 business days.
• Updates: updates are included only where stated on this page.

Refunds

This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.

Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.