anthropics / claude-plugins-official

Anthropic-managed marketplace directory of curated plugins for Claude Code, split into internal and external plugin folders.

affaan-m / ECC

Agent harness system of skills, agents, hooks, rules, memory, and security scanning for Claude Code, Codex, Cursor, and other AI coding tools.

michael-denyer / pstack-claude

Port of Poteto's pstack, a set of opinionated agent workflow skills, translated for Claude Code, Codex, Copilot, Pi, OpenCode, and Gemini.

Donchitos / Claude-Code-Game-Studios

A set of 49 Claude Code subagents and 74 slash-command workflows that structure an AI session into a game dev studio with defined roles.

wshobson / agents

A multi-harness collection of plugins, agents, skills, and commands for AI coding tools like Claude Code, Codex CLI, and Cursor.

anthropics / financial-services

Reference Claude agents, skills, and data connectors for investment banking, equity research, private equity, and wealth management workflows.

mnfst / awesome-free-llm-apis

A curated list of LLM APIs that offer permanent free tiers for text inference, with base URLs, models, and rate limits.

anthropics / prompt-eng-interactive-tutorial

An interactive Jupyter notebook course teaching prompt engineering techniques for Anthropic's Claude models.

shanraisshan / claude-code-best-practice

A curated reference of Claude Code best practices covering subagents, commands, skills, hooks, memory, and workflows.

xbtlin / ai-berkshire

A set of Claude Code and Codex skills that run value-investing company research using four investors' methodologies via multi-agent analysis.