43,730 repositories keep their own agent configuration in the open: a CLAUDE.md, a rules file, instructions for Copilot, a skill the project runs on itself. These are not mods to install. They are worth reading for what they reveal — what a maintainer thinks an agent gets wrong.
Building agents7,670Claude Code6,650Data and AI3,673Backend and APIs3,507Languages3,392Planning3,227Git and workflow3,211Code review2,744Testing2,385Memory and context2,367Writing and docs2,330DevOps and cloud2,314Research2,288Frontend2,261Security2,032Productivity1,722
All Claude Code31,994 Codex23,359 OpenCode22,302 GitHub Copilot3,560 Gemini CLI1,917 Cursor1,740 Windsurf142 Kiro82
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| lancewillett/ai-plugins Lance's AI skills, agents, commands, etc. By convention, works with Claude and Codex both. | 2 | Claude Code, Codex, OpenCode | 2 | 250 tok |
| MangroveTechnologies/x402-plugin-template Template for building Claude Code + OpenClaw plugins that consume x402 MCP servers | 2 | Claude Code | 2 | 151 tok |
| timgranlundmarsden/claude-agent-flow timgranlundmarsden.github.io Agentic workflow plugin for Claude Code with adversarial loop to ensure quality without in | 2 | Claude Code | 2 | 1,118 tok |
| rlaope/claude-code-savant Savant, an AI savant-based corporate environment, and the provision of Claude Code plugins | 2 | Claude Code | 1 | 988 tok |
| NikiforovAll/claude-code-marketplace nikiforovall.blog Web dashboard for browsing and managing Claude Code plugins across multiple marketplaces | 2 | Claude Code | 1 | 649 tok |
| killerapp/mem8-plugin Claude Code plugin for mem8 - Memory-augmented development workflows with commands and age | 2 | Claude Code | 1 | 146 tok |
| Pitchlab/founder-support-system Claude Code Plugin for Founder Support | 2 | Claude Code | 1 | 2,131 tok |
| Kenmege/codex-claude-companion Codex-native Claude review plugin for read-only, evidence-cited Opus review lanes. | 2 | GitHub Copilot | 1 | 186 tok |
| chiphwang1/oke-agent-plugin Native Claude Code plugin for Oracle Kubernetes Engine (OKE) — Terraform generator, troubl | 2 | Codex, OpenCode | 1 | 570 tok |
| schmidthole/serf spec-driven development plugin for Claude Code | 2 | Claude Code | 1 | 257 tok |
| youhaowei/opencode-claude-code-provider OpenCode plugin for Claude Code provider - use your Claude Code subscription without API k | 2 | Claude Code | 1 | 770 tok |
| maxwzg/claude-code-auto-approve A Claude Code Plugin that automatically approves Bash compound commands | 2 | Claude Code | 1 | 1,509 tok |
| specsnl/agent-specs Specs's Claude and Copilot (marketplace) plugins. | 2 | Claude Code | 1 | 449 tok |
| egerev/claude-telegram-upgrade Upgrade pack for Claude Code's Telegram plugin — zombie fix, voice transcription, multi-bo | 2 | Claude Code | 1 | 1,761 tok |
| HiAgencia/hi-claude The first thing you should say to Claude in every new project - best practices plugin for | 2 | Claude Code | 1 | 1,772 tok |
| ekline-io/ekline-docs-skills Claude Code plugins for EkLine Docs Reviewer | 2 | Claude Code | 1 | 909 tok |
| Loki-Astari/AIAgent A neovim plugin that runs Claude code | 2 | Claude Code | 1 | 3 tok |
| PhenoML/phenoml-skills claude skills and plugin to use Phenoml! | 2 | Claude Code | 1 | — |
| penkzhou/swiss-army-knife-plugin A collection of useful Claude Code components for daily development - commands, agents, sk | 2 | Claude Code | 1 | 3,453 tok |
| open-cli-collective/cpm Claude plugin manager that helps you view & install Claude plugins on a per-project basis, | 2 | Claude Code | 2 | 1,012 tok |
| irmowan/claude-code-prompt-recorder A Claude Code hook plugin that records every user prompt with a timestamp | 2 | Claude Code | 1 | 381 tok |
| arjvand/claude-content-tools A Claude Code Plugin for topic-agnostic content generation using AI agents (researcher, wr | 2 | Claude Code | 1 | 2,472 tok |
| hamchowderr/braynee Claude Code plugins marketplace — Insightful and more | 2 | Claude Code, Codex, OpenCode | 2 | 2,675 tok |
| mbensch/mb-ai-tools Marcel's Droid (and Claude) Plugin Repository | 2 | Codex, OpenCode | 1 | 1,528 tok |
| kolodkin/devpowers A Claude Code plugin bundling developer productivity skills. | 2 | Claude Code | 3 | 826 tok |
| prillcode/storyline Story-driven development workflow plugin for Claude Code | 2 | Claude Code | 1 | 731 tok |
| nickmeehan/ichiba Useful Claude Code plugins saving money and stress | 2 | Claude Code | 3 | 947 tok |
| goddaehee/cmux-claude-skill Claude Code skill plugin for cmux — AI-native macOS terminal. Verified CLI reference, brow | 2 | Claude Code | 1 | 112 tok |
| imbflool/cc-plugin-eval imbflool.github.io 🚀 Automate the evaluation of Claude Code plugin components to ensure accurate triggering | 2 | Claude Code | 1 | 3,802 tok |
| elct9620/ai-spec-skills A Claude Code plugin for maintaining project specifications | 2 | Claude Code | 1 | 712 tok |
| almanax-ai/almanax-security-plugin Official Almanax plugin and skills repository for Claude Code and Codex, enabling security | 2 | Codex | 2 | — |
| adologyai/content-intelligence-plugin adologyai.com Adology — competitive ad & creative intelligence for AI agents (MCP server + Claude plugin | 2 | Claude Code | 1 | 708 tok |
| ToshikiImagawa/unity-claude-code-tools Claude Code plugin for Unity development - automated build validation and test execution a | 2 | Claude Code, Codex, OpenCode | 2 | 4,524 tok |
| lukaskucinski/clodex A Claude Code Plugin that Ralphs Codex Adverserial-Reviews | 2 | Claude Code | 1 | 2,108 tok |
| chiv-heng/college-navigator-plugin Claude Code plugin for college planning — adaptive student interviews, competitive gap ana | 2 | Claude Code, Codex, OpenCode | 3 | 1,637 tok |
| Jaace/claude-model-advisor jaace.github.io A Claude Code plugin that recommends the right model and effort level at the start of ever | 2 | Claude Code | 1 | 584 tok |
| kenshikobayashi/everything-claude-code-for-business Complete Claude Code plugin for business operations — meetings, communication, analysis, p | 2 | Claude Code | 1 | 514 tok |
| danweinerdev/claude-sdd-planner Agentic plugin for structured project planning — lifecycle skills for research, specs, des | 2 | Claude Code, Codex, OpenCode | 2 | 7,523 tok |
| vasuag09/harness-claude A lean, full-SDLC harness for Claude Code: Plan → Implement → Verify → Maintain, with suba | 2 | Claude Code | 1 | 1,723 tok |
| afaizalam2003/Master-claude-skill A comprehensive open-source collection of 220+ production-ready skills, agent plugins, and | 2 | Gemini CLI | 187 | — |
| 0xTimepunk/archon General-purpose spec-driven development plugin for Claude Code | 2 | Claude Code | 1 | 1,167 tok |
| ryan-mt/mission Mission — strict 3-role orchestration plugin for Claude Code | 2 | Claude Code, Codex, OpenCode | 2 | 3,525 tok |
| galilei2050/belay Claude Code plugin marketplace: small plugins that compose into a plan-implement-verify ha | 2 | Claude Code | 1 | 1,033 tok |
| pdimeglio-dev/blog-pipeline-plugin Claude Plugin to Automate a daily content pipeline that turns active engineering work into | 2 | Claude Code | 2 | 1,328 tok |
| jameywarren/shopify-claude-quickstart Claude Code project template for operating Shopify stores with the Shopify Dev plugin. Per | 2 | Claude Code | 4 | 3,904 tok |
| realmpastai-web/claude-design-suite Canonical everything-design skill suite: 12 plugins, 89 skills, 59 brand DESIGN.md refs, 1 | 2 | Claude Code | 1 | 1,068 tok |
| qwexvf/apm Agent Plugin Manager — lockfile-based reproducible plugin installs for Claude Code and AI | 2 | Claude Code | 8 | — |
| AojdevStudio/dev-utils-marketplace Modular Claude Code plugin marketplace with 15 focused, independently installable plugins | 2 | Claude Code | 1 | 63 tok |
| tacoda/bridle Claude Code Plugin for managing an Agent Project Harness | 2 | Claude Code | 2 | 528 tok |
| paultaki/claude-skill-usage See which Claude skills you actually use — and what to keep, modernize, turn off, or prune | 2 | Claude Code, Codex, OpenCode | 2 | 698 tok |