Anthropic

claude-code-plugins

Development kit for working with the Claude Agent SDK

Easily create custom hooks to prevent unwanted behaviors by analyzing conversation patterns or from explicit instructions. Define rules via simple markdown files.

Interactive self-referential AI loops for iterative development. Claude works on the same task repeatedly, seeing its previous work, until completion.

Security reminder hook that warns about potential security issues when editing files, including command injection, XSS, and unsafe code patterns

Commands for git commit workflows including commit, push, and PR creation

Interactive learning mode that requests meaningful code contributions at decision points (mimics the unshipped Learning output style)

Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review

Automated code review for pull requests using multiple specialized agents with confidence-based scoring to filter false positives

Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification

Migrate your code and prompts from Sonnet 4.x and Opus 4.1 to Opus 4.5.

Comprehensive toolkit for developing Claude Code plugins. Includes 7 expert skills covering hooks, MCP integration, commands, agents, and best practices. AI-assisted plugin creation and validation.

Adds educational insights about implementation choices and codebase patterns (mimics the deprecated Explanatory output style)

Create distinctive, production-grade frontend interfaces with high design quality. Generates creative, polished code that avoids generic AI aesthetics.