Question 1

What are AI agent plugins?

Accepted Answer

AI agent plugins are pre-built integrations that extend AI agents like Claude Code with third-party services. They connect your agent to tools like GitHub, Slack, Notion, Datadog, and 140+ other services. OpenAI and Anthropic each maintain official plugin registries for their respective ecosystems.

Question 2

What is the difference between OpenAI plugins and Anthropic plugins?

Accepted Answer

OpenAI plugins (130+) connect the OpenAI ecosystem to third-party SaaS tools like GitHub, Slack, HubSpot, and Datadog using the .codex-plugin format. Anthropic plugins (13) extend Claude Code with developer workflows like automated code review, git commit commands, security scanning, and feature development using the .claude-plugin format.

Question 3

How do I install a Claude Code plugin?

Accepted Answer

To install a Claude Code plugin, clone the plugin repository and add it to your Claude Code configuration. For example: git clone https://github.com/anthropics/claude-code and copy the desired plugin folder into your .claude/plugins directory. Restart Claude Code to activate the plugin.

Question 4

Are AI agent plugins free to use?

Accepted Answer

Yes. All plugins listed in the explainx.ai plugin directory are free and open source. The plugins themselves are free, though some of the third-party services they connect to (like HubSpot, Datadog, or Figma) may require paid subscriptions.

Question 5

What categories of AI plugins are available?

Accepted Answer

The explainx.ai plugin directory includes 140+ plugins across 14 categories: developer tools, productivity, communication, analytics, finance, CRM, file storage, AI/media, security, research, infrastructure, marketing, design, and e-commerce.

#	Plugin	Category	Source
1	agent-sdk-dev Claude Agent SDK Development Plugin for building applications with the Agent SDK.	Dev Tools	Anthropic
2	claude-opus-4-5-migration Migrate your code and prompts from Sonnet 4.x and Opus 4.1 to Opus 4.5.	Dev Tools	Anthropic
3	code-review Automated PR code review using multiple specialized agents with confidence-based scoring to eliminate false positives.	Dev Tools	Anthropic
4	commit-commands Streamline your git workflow with simple commands for committing, pushing, and creating pull requests.	Dev Tools	Anthropic
5	explanatory-output-style Adds educational insights about implementation choices and codebase patterns.	Productivity	Anthropic
6	feature-dev Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review.	Dev Tools	Anthropic
7	frontend-design Frontend design skill for UI/UX implementation — helps avoid generic AI aesthetics.	Dev Tools	Anthropic
8	hookify Easily create hooks to prevent unwanted behaviors by analyzing conversation patterns.	Dev Tools	Anthropic
9	learning-output-style Interactive learning mode that requests meaningful code contributions at decision points.	Productivity	Anthropic
10	plugin-dev Comprehensive toolkit with expert skills for building Claude Code plugins.	Dev Tools	Anthropic
11	pr-review-toolkit Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification.	Dev Tools	Anthropic
12	ralph-wiggum Continuous self-referential AI loops for interactive iterative development.	Dev Tools	Anthropic
13	security-guidance Security review for Claude-generated code with pattern-based warnings and LLM-powered vulnerability detection.	Security	Anthropic

#	Plugin	Category	Source
1	agent-sdk-dev Claude Agent SDK Development Plugin for building applications with the Agent SDK.	Dev Tools	Anthropic
2	claude-opus-4-5-migration Migrate your code and prompts from Sonnet 4.x and Opus 4.1 to Opus 4.5.	Dev Tools	Anthropic
3	code-review Automated PR code review using multiple specialized agents with confidence-based scoring to eliminate false positives.	Dev Tools	Anthropic
4	commit-commands Streamline your git workflow with simple commands for committing, pushing, and creating pull requests.	Dev Tools	Anthropic
5	explanatory-output-style Adds educational insights about implementation choices and codebase patterns.	Productivity	Anthropic
6	feature-dev Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review.	Dev Tools	Anthropic
7	frontend-design Frontend design skill for UI/UX implementation — helps avoid generic AI aesthetics.	Dev Tools	Anthropic
8	hookify Easily create hooks to prevent unwanted behaviors by analyzing conversation patterns.	Dev Tools	Anthropic
9	learning-output-style Interactive learning mode that requests meaningful code contributions at decision points.	Productivity	Anthropic
10	plugin-dev Comprehensive toolkit with expert skills for building Claude Code plugins.	Dev Tools	Anthropic
11	pr-review-toolkit Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification.	Dev Tools	Anthropic
12	ralph-wiggum Continuous self-referential AI loops for interactive iterative development.	Dev Tools	Anthropic
13	security-guidance Security review for Claude-generated code with pattern-based warnings and LLM-powered vulnerability detection.	Security	Anthropic

PLUGINS

PLUGINS