claude-skills-marketplace and claude-arsenal
These are competitors offering overlapping Claude Code skill libraries for software engineering tasks, with A being the more established option (463 vs 10 stars) while B claims broader coverage (39+ skills vs unspecified count).
About claude-skills-marketplace
mhattingpete/claude-skills-marketplace
Claude Code Skills for software engineering workflows - Git automation, testing, and code review
Based on the README, here's a technical summary: Provides modular Claude Code plugins (Engineering Workflows, Visual Documentation, Code Operations, Productivity Skills) that activate contextually through declarative SKILL.md and AGENT.md files—enabling Git automation, testing, code review, visual diagram generation, and code refactoring without explicit user invocation. Implements the Anthropic code execution pattern via a sandboxed FastMCP server runtime, achieving 90-99% token reduction for bulk operations by executing Python locally rather than processing files through context.
About claude-arsenal
majiayu000/claude-arsenal
🚀 39+ battle-tested Claude Code skills & 9 specialized agents for professional software development. The most comprehensive skill library for Claude Code.
Organizes 47+ skills and 7 specialized agents through a modular installation system that maps to Claude Code's `/` command interface, enabling selective skill composition rather than monolithic frameworks. Skills span the full software lifecycle—from product discovery and technical specification through DevOps, observability, and language-specific architecture patterns (TypeScript/Python/Rust/Go)—each with hard constraints, practical examples, and verification checklists. Agents provide specialized orchestration for complex workflows like tech leadership, code review, Kubernetes deployment, and security auditing, targeting teams building production systems with Claude Code.
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