The essential packages every Claude Code user should have. Start here.
Devil's advocate code review — find edge cases, race conditions, failure modes
1000+ skills curated from Anthropic, Vercel, Stripe, and other engineering teams
One command to install 6 essential safety hooks in 10 seconds — zero dependencies
Run Claude Code as an MCP server so any agent can delegate coding tasks to it
216+ slash commands, 12 skills, 54 AI agents for software engineering tasks
Fetch up-to-date library documentation and code examples into Claude's context
Blocks dangerous git and shell commands from being executed by AI coding agents
Agent harness performance optimization with skills, instincts, memory, and security
Lightweight spec-driven development system for Claude Code with meta-prompting and context engineering
@github✓ OfficialOfficial GitHub integration for repos, issues, PRs, and CI/CD workflows