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Introduction

cc-toolkit is a set of plugins for Claude Code, Anthropic’s coding agent for the terminal and IDE. Each plugin solves one problem, such as reviewing a change, turning an idea into a spec, or fixing a failed CI run. Each one works on its own.

A plugin adds commands, skills, helper agents, or hooks to Claude Code. A marketplace is a catalog of plugins. You add the cc-toolkit marketplace to Claude Code once, then install only the plugins you want from it.

You invoke a plugin’s commands and skills as /<plugin>:<name>, for example /code-review:start-cr. Many skills also start on their own when your request matches, for example when you paste a link to a failed CI run.

The plugins follow the path of a change from idea to merge:

Stage Plugins
Plan and specify fd3 turns an idea into a spec and then into code. codex-plan-improver gets a second opinion on Claude’s plans. researcher answers research questions with cited sources.
Build and ship dev-kit opens pull requests, fixes failed CI runs, and checks dependency upgrades. tester checks a running app. pr-proof records a video that shows a change works.
Review code-review reviews a change from several angles at once and merges the results into one report.
Agent hygiene hookify stops Claude from repeating a mistake. session-learner turns your corrections into project rules.
Media and naming scribe transcribes and summarizes audio and video. namesmith suggests names and checks domains.

You don’t need the whole set. Start with the plugin that matches the problem you have now.