Claude Code ecosystem

claude-agents-library

Thirty-four role-shaped system prompts, ready to paste

Visit official page 日本語で詳しく見る

Popularity

★ 748

Last update

April 2026

License / pricing

MIT

What it does

A library of production-oriented agent definitions covering professional roles, organised by category with a finder to locate the right one, notes on MCP integration and guidance on keeping costs down. They are prompts rather than software: paste one in and customise it against your actual work, because used verbatim they tend to produce generic answers. A prompt that says "legal counsel" does not make the output legal advice. MIT.

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

Screenshots & visuals

Before you start

Setup difficultySome setup needed
Command lineNot required
API keyNot required
Sends data onlineNo

Judged automatically from the project's own metadata. Always confirm on the official page.

claude-agents-library FAQ

Is claude-agents-library free?: Yes. It runs on your own machine, so there is no usage-based cost either.
Do I need to install anything or write code to use claude-agents-library?: You install it like a normal desktop app. No command line involved.
Does claude-agents-library work on a phone?: No. It needs a computer.
Can I use claude-agents-library commercially?: The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.

How it compares

The conditions that decide whether you can actually use it, side by side.

Tool	Command line	API key	Sends data out	Phone	Commercial use
claude-agents-library (this page)	Not needed	Not needed	No	No	Yes
ponytail	Not needed	Not needed	No	No	Yes
Awesome Claude Code	Not needed	Not needed	No	No	Yes
planning-with-files	Not needed	Not needed	No	No	Yes

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.

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Awesome Claude Code

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planning-with-files

Keep an AI agent's plan on disk so it survives losing the conversation

TabNine

Code autocompletion as a service — the engine itself is closed source

Browse all tools Home

What it does

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

claude-agents-library FAQ

Is claude-agents-library free?

Yes. It runs on your own machine, so there is no usage-based cost either.

Do I need to install anything or write code to use claude-agents-library?

You install it like a normal desktop app. No command line involved.

Does claude-agents-library work on a phone?

No. It needs a computer.

Can I use claude-agents-library commercially?

The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.

How it compares

The conditions that decide whether you can actually use it, side by side.

Tool	Command line	API key	Sends data out	Phone	Commercial use
claude-agents-library (this page)	Not needed	Not needed	No	No	Yes
ponytail	Not needed	Not needed	No	No	Yes
Awesome Claude Code	Not needed	Not needed	No	No	Yes
planning-with-files	Not needed	Not needed	No	No	Yes

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.