Automated code audit — intelligently selects the best tools for each project. Security, secrets, dependencies, test coverage, and more. Cross-platform. Zero dependencies baseline, enhanced by external tools.
npx claudepluginhub variant-systems/skills --plugin postboxAgent skills by Variant Systems. Works with Claude Code, Cursor, Codex, and 35+ more agents.
/plugin marketplace add variant-systems/skills
/plugin install code-audit@variant-systems-skills
/plugin install postbox@variant-systems-skills
npx skills add variant-systems/skills --skill code-audit
npx skills add variant-systems/skills --skill postbox
Upload the skill folder via Settings > Skills.
| Skill | Description |
|---|---|
| code-audit | Automated code audit — security, secrets, dependencies, test coverage, code structure, and AI-generated code patterns |
| postbox | Collect structured data, create forms, and set up submission endpoints — contact, feedback, signup, waitlist, and more. Webhooks, notifications, and spam protection via Postbox API |
Battle-tested Claude Code plugin for engineering teams — 48 agents, 184 skills, 79 legacy command shims, production-ready hooks, and selective install workflows evolved through continuous real-world use
Comprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.
Tools to maintain and improve CLAUDE.md files - audit quality, capture session learnings, and keep project memory current.
Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification
Browser automation and end-to-end testing MCP server by Microsoft. Enables Claude to interact with web pages, take screenshots, fill forms, click elements, and perform automated browser testing workflows.
Core skills library for Claude Code: TDD, debugging, collaboration patterns, and proven techniques