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agent-developmentby AnthropicDevelopmentGitHub stars: 153k

Agent Development skill: what it does and how to install it

Guides the creation, configuration and testing of autonomous agents for Claude Code plugins, including their frontmatter, prompts and triggering conditions.

Summary generated from the skill's documentation.

Install

$ npx skills add anthropics/claude-code --skill Agent Development

Run it in a terminal. If your agent is already running, start a new session so it picks the skill up.

About this skill

What it does. Explains agent file structure and frontmatter, then guides the design of triggering examples, tool access and system prompts. Covers manual and AI-assisted creation, validation, organisation and testing of plugin agents.

When to use it. For creating or improving autonomous agents in Claude Code plugins, or for guidance on agent structure, prompts, tools and when an agent should trigger.

History

Repo stars

153k+1k since 19 Oct 2026

Stars are counted for the whole repository, which holds 9 skills.

Show as a table
Repo stars by day
DateRepo stars
26 Oct 2026153,421
25 Oct 2026153,330
24 Oct 2026153,219
23 Oct 2026152,964
22 Oct 2026152,829
21 Oct 2026152,664
20 Oct 2026152,872
19 Oct 2026152,414

Installs

19.6k

Tracking since . A chart appears once there are 7 days of data.

Installs via skills.sh

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