# anthropics/claude-code for Claude Code: install and use > anthropics/claude-code is Anthropic's own Claude Code repository, and Flowy indexes the 40 plugin components it ships: 10 skills, 14 agents, and 16 commands. Use it to author new plugins, skills, agents, and hooks; review pull requests with specialist agents; scaffold an Agent SDK app; or turn a conversation pattern into an enforced hookify rule. Canonical: https://www.flowy.sh/plugins/anthropics-claude-code/guide Published: 2026-10-29 Updated: 2026-10-29 Author: Flowy ## What is anthropics/claude-code, and what does this listing cover? `anthropics/claude-code` is Anthropic's own repository for Claude Code, the terminal based coding tool, and it carries 143,267 GitHub stars. This listing is not the CLI itself. It indexes the plugin-shaped content the repository also publishes: 40 components split into 10 skills, 14 agents, and 16 commands, filed under Flowy's agents category. Because Anthropic wrote both the tool and this bundle, it also shows how the company builds its own plugins, skills, agents, and hooks, not just a set of examples. ## Who should use anthropics/claude-code? Two kinds of reader use this listing. One is building a plugin, skill, agent, or hook for Claude Code and wants Anthropic's own authoring guidance and helper agents instead of a blank file. The other wants everyday coding helpers: a git commit, a pull request review, a new Agent SDK project, or a rule that enforces a repeated correction. Most people use one side of this, not both. ## Which skills come with anthropics/claude-code? Eight of the 10 skills form a set for plugin authorship. `plugin-structure` covers scaffolding a plugin and how plugin.json drives auto-discovery of its parts. `skill-development` covers writing a skill: structure, progressive disclosure, and a description that fires at the right moment. `agent-development` covers a subagent's frontmatter, system prompt, and tool access. `command-development` covers a slash command's frontmatter, arguments, and interactive prompts through AskUserQuestion. `hook-development` covers PreToolUse, PostToolUse, and Stop events, validating tool use, and blocking dangerous commands. `mcp-integration` covers wiring an external service into a plugin over stdio, SSE, or HTTP. `plugin-settings` covers storing configuration so a plugin's behavior can change per project without editing code. `writing-rules` covers the syntax behind a hookify rule, described below. The other two skills stand apart: `claude-opus-4-5-migration` moves prompts and code from Sonnet 4.0, Sonnet 4.5, or Opus 4.1 onto Opus 4.5, and `frontend-design` gives direction on aesthetic choices and typography so new UI does not read like a generic template. ## Which agents come with anthropics/claude-code? The 14 agents split into five groups. Three back the authoring skills: `agent-creator` builds a new subagent from a description of what it should do, `plugin-validator` checks a plugin's files and plugin.json after a change, and `skill-reviewer` checks a skill's quality and its description. Two understand existing code: `code-explorer` traces execution paths and dependencies in a feature, and `code-architect` turns that into a blueprint of files to change. Six review a change after it is written: `code-reviewer` for bugs, security issues, and convention drift; `code-simplifier` for cleaning up code without changing what it does; `comment-analyzer` for comments that will not stay accurate; `pr-test-analyzer` for whether new tests cover the change; `silent-failure-hunter` for error handling that swallows a failure; and `type-design-analyzer` for whether a new type expresses its own invariants. `agent-sdk-verifier-py` and `agent-sdk-verifier-ts` check that a Python or TypeScript Agent SDK application is configured correctly. `conversation-analyzer` reads back a session transcript to find behavior worth turning into a hook rule, feeding directly into hookify. ## Which commands come with anthropics/claude-code? Four of the 16 commands make up the hookify toolset: `hookify` turns a conversation pattern or an explicit instruction into a hook rule, `list` shows the rules already configured, `configure` turns a rule on or off, and `help` explains the hookify commands. Seven cover everyday git and GitHub work: `commit` writes a commit, `commit-push-pr` commits, pushes, and opens a pull request in one step, `code-review` and `review-pr` both review a pull request though review-pr runs several specialist agents together, `dedupe` finds duplicate GitHub issues, `triage-issue` analyzes and labels them, and `clean_gone` removes local branches and worktrees whose remote branch is gone. Two are guided workflows: `feature-dev` for feature development with an architecture focus, and `create-plugin` for scaffolding, building, and validating a new plugin. `new-sdk-app` sets up a fresh Claude Agent SDK project, which the two SDK verifier agents above then check. ## What do ralph-loop and cancel-ralph do? The remaining two commands, `ralph-loop` and `cancel-ralph`, start and stop what the plugin calls a Ralph Wiggum loop inside a session. The fact pack's own descriptions do not go further than start and cancel, so this guide will not guess at the mechanism. If you plan to rely on it, read the repository's own documentation for it first. ## How do I install anthropics/claude-code in Claude Code? Install it from [the install card on the listing page](https://www.flowy.sh/listings/anthropics-claude-code#install). Flowy indexes what `anthropics/claude-code` publishes. It does not own, bundle, or modify any of the 40 components, and updates come from Anthropic's own repository, not from Flowy. Given how wide this set is, most people are better off installing for one group at a time, plugin authorship, review, or hookify, rather than all 40 pieces at once. Sources: [anthropics/claude-code on GitHub](https://github.com/anthropics/claude-code), [anthropics/claude-code README](https://github.com/anthropics/claude-code#readme) ## Common questions ### What is anthropics/claude-code on Flowy? It is Anthropic's own repository for the Claude Code CLI. Flowy's listing indexes the plugin-shaped content the repository also publishes: 40 components across 10 skills, 14 agents, and 16 commands, covering plugin authoring, code review, git and GitHub workflows, Agent SDK scaffolding, and the hookify and Ralph Wiggum loop tools. ### Can I use anthropics/claude-code to build my own Claude Code plugin? Yes. Eight of the 10 skills, plugin-structure, skill-development, agent-development, command-development, hook-development, mcp-integration, plugin-settings, and writing-rules, cover plugin authoring directly. The agent-creator, plugin-validator, and skill-reviewer agents back them, and the create-plugin command walks through scaffolding, building, and validating a new plugin. ### What is hookify and how does it fit into this plugin? The hookify family is four commands. hookify turns a conversation pattern or an explicit instruction into a hook rule, list shows the rules already configured, configure turns a rule on or off, and help explains the commands. The writing-rules skill documents the rule syntax behind them, and the conversation-analyzer agent reads back a session transcript to suggest what is worth turning into a rule. ### What does the ralph-loop command actually do? ralph-loop starts what the plugin calls a Ralph Wiggum loop in the current session, and cancel-ralph stops it. The indexed description does not go beyond start and cancel, so check the repository's own documentation before relying on it for anything unattended. ### Does anthropics/claude-code include pull request review tools? Yes. The code-review and review-pr commands trigger a review, and review-pr runs several specialist agents together: code-reviewer for bugs and security, pr-test-analyzer for test coverage, silent-failure-hunter for swallowed errors, comment-analyzer for stale comments, and type-design-analyzer for type invariants. ## Related - [The listing page](https://www.flowy.sh/listings/anthropics-claude-code): Install command, components and repository - [Alternatives to this plugin](https://www.flowy.sh/alternatives/anthropics-claude-code): Peers in its category, ranked by stars - [The Claude Code plugin marketplace](https://www.flowy.sh/marketplace/plugins): How plugins install, and every plugin in the index - [Hermes Agent for Claude Code: what it does and how to install it](https://www.flowy.sh/plugins/nousresearch-hermes-agent/guide): another plugin guide - [Cal.com for Claude Code: what it does and how to install it](https://www.flowy.sh/plugins/calcom-cal-com/guide): another plugin guide