44,969 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 agents8,530Claude Code6,887Git and workflow3,618Data and AI3,582Backend and APIs3,558Languages3,485Planning3,325Code review2,903Testing2,691DevOps and cloud2,482Writing and docs2,481Memory and context2,373Research2,322Frontend2,310Security2,179Project management1,971
All Claude Code32,523 Codex24,842 OpenCode23,761 GitHub Copilot3,723 Gemini CLI2,038 Cursor1,771 Windsurf201 Kiro116
| Project | Stars | Configures | Files | Always loaded |
|---|---|---|---|---|
| netresearch/file-search-skill Claude Code skill: Fast code and file search using ripgrep, ast-grep, fd, rga, tokei | 45 | Codex, OpenCode | 1 | 1,085 tok |
| issol14/paper2code-skill A Claude Code Skill that converts research papers into executable code - no extra API cost | 45 | Codex, OpenCode | 1 | 998 tok |
| PsychQuant/che-ical-mcp macOS Calendar & Reminders MCP server (29 tools) — native Swift EventKit for Claude Deskto | 45 | Claude Code, Codex, OpenCode | 11 | 4,633 tok |
| exploreomni/omni-agent-skills A collection of skill for working with Omni. These skills help AI agents understand and ex | 45 | Codex, OpenCode | 1 | 471 tok |
| symfony/ai-mate symfony.com AI development assistant CLI for Symfony projects | 45 | Codex, OpenCode | 1 | 2,008 tok |
| codecast-sh/codecast codecast.sh Your team and its agents, in one workspace. Chat, calls, tasks, docs, pull requests and de | 45 | Claude Code, Codex, OpenCode | 2 | 7,683 tok |
| AgriciDaniel/local-competitor-map agricidaniel.github.io AI-powered local-competitor intelligence on a photorealistic Google 3D map. Ask in plain E | 45 | Codex, OpenCode | 1 | 380 tok |
| ur-grue/autopunk-media-skills ur-grue.github.io 400+ free AI skills and 9 agents for media professionals — journalists, producers, podcast | 45 | Claude Code | 1 | 4,869 tok |
| RBraga01/Quality-Engineering-Skills rbraga01.github.io 23 quality engineering skills and 8 agents for AI — ISO 9001, IATF 16949, AIAG-VDA FMEA, V | 45 | Claude Code | 1 | 417 tok |
| nrwl/metaharness.tools metaharness.tools The guide for AI meta harnesses | 45 | Codex, OpenCode | 1 | 478 tok |
| FedRAMP/2026 fedramp.gov Website tools for the FR Consolidated Rules for 2026 | 45 | Codex, OpenCode | 1 | 1,369 tok |
| gfargo/tui-design-skill griffen.codes Claude Skill for building clean, professional terminal UIs & CLIs — covers Bubble Tea, Rat | 45 | Codex, OpenCode | 1 | 431 tok |
| Lex669/LumericalFDTD-skill lex669.github.io A skill for automating Lumerical FDTD simulations | 45 | Claude Code | 1 | 1,656 tok |
| cedrickchee/text-to-cad text-to-cad.earthtojake.com An open source harness for generating CAD models [forked of https://github.com/earthtojake | 45 | Claude Code, Codex, OpenCode | 5 | 1,019 tok |
| nearform/lastlight lastlight.dev Self-hostable, MIT Licensed, Enterprise AI Software Factory | 45 | Claude Code, Codex, OpenCode | 5 | 2,498 tok |
| tyroneross/pyramid-principle rosslabs.ai Barbara Minto's Pyramid Principle as composable Claude Code skills — short-form, long-form | 45 | Codex, OpenCode | 1 | 637 tok |
| AgentsORG/design-engineering skills.sh Design engineering for AI agents: a skill graph, 13 agents that loop (with a cross-model d | 45 | Claude Code, Codex, OpenCode | 1 | 8,995 tok |
| sweetrb/apple-photos-mcp MCP server for Apple Photos - query, search, export, and inspect the macOS Photos library | 45 | Claude Code | 1 | 5,917 tok |
| Threadlines/threadlines threadlines.dev Open-source ADE for Claude Code, Codex, OpenCode, Cursor and more. Put several coding agen | 45 | Claude Code, Codex, OpenCode | 2 | 4,655 tok |
| hiero-ledger/solo An opinionated CLI tool to deploy and manage standalone test networks. | 45 | Claude Code, Codex, GitHub Copilot, OpenCode | 9 | 6,272 tok |
| chasinglogic/dfm A dotfile management tool for pair programmers. | 45 | Codex, OpenCode | 1 | 288 tok |
| nostrord/nostrord web.nostrord.com | 45 | Claude Code | 6 | 5,906 tok |
| jonapoul/aktual Unofficial client for Actual Budget - supporting Android and JVM desktop | 45 | Claude Code | 13 | 3,962 tok |
| future-architect/uzomuzo-oss Detect abandoned and end-of-life dependencies that CVE-based scanners don't flag, and rank | 45 | Claude Code, Codex, GitHub Copilot, OpenCode | 37 | 24,839 tok |
| cybergarage/go-matter Matter is an open-source connectivity standard for smart home and IoT (Internet of Things) | 45 | GitHub Copilot, Gemini CLI | 2 | 1,723 tok |
| changeroa/lazykatok Private terminal KakaoTalk client with real-time watch and strict reply TUI | 45 | Claude Code, Codex, OpenCode | 2 | 835 tok |
| fadelabs/phantom fadelab.net AI audio engineering system: MCP server + Claude Code skills for professional automated mi | 45 | Claude Code, Codex, OpenCode | 2 | 2,182 tok |
| transient-haskell/transient-stack All the Transient libraries | 45 | Codex, Gemini CLI, OpenCode | 2 | 41,065 tok |
| cisagov/ScubaConnect cisa.gov Native cloud infrastructure for automatically running ScubaGear/ScubaGoggles | 45 | Claude Code, Codex, OpenCode | 2 | 606 tok |
| assaio/assaio assaio.dev Offline-first Go CLI for engineering teams to observe AI adoption, compare estimated codin | 44 | Claude Code, Codex, OpenCode | 31 | 2,525 tok |
| pincerhq/pincer | 44 | Codex, OpenCode | 1 | 2,475 tok |
| PinkR1ver/vibe-roast npmjs.com Local-first AI coding personality profiler, usage dashboard, and evidence-grounded roast. | 44 | Claude Code, Codex, GitHub Copilot | 13 | 662 tok |
| Aquifer-sea/pattern8 pypi.org 🎱 AI Agent Governance Framework — Constrain how AI Agents behave in your project. pip ins | 44 | Codex, OpenCode | 1 | 414 tok |
| YuDefine/nuxt-supabase-starter A Nuxt + Supabase rapid development template with an AI-assisted workflow (Claude Code), T | 44 | Codex, OpenCode | 1 | 5 tok |
| haodehaode378/text-encoding-guard Detect and repair Chinese text encoding corruption caused by AI coding assistants. Support | 44 | Claude Code, Codex | 3 | — |
| HangYu8123/MiHaCoBench A mini harness benchmark for coding | 44 | Claude Code, Codex, OpenCode | 2 | 2,202 tok |
| aliafshar/brain A multi-agent framework built into GEMINI.md to run on the Gemini CLI | 44 | Gemini CLI | 1 | 1,188 tok |
| soupernerd/marge-simpson | 44 | Codex, OpenCode | 1 | 1,408 tok |
| krishnakanthb13/ai_cli_manager Your central hub for AI coding assistants on Windows, Linux & macOS — install, manage & la | 44 | Claude Code, Codex | 2 | — |
| marlonluo2018/pandas-mcp-server | 44 | Claude Code | 1 | 1,046 tok |
| liangdabiao/social_research_agent skillhub.cn How to use Claude skills to easily build a personalized "micro public opinion" tool. A sim | 44 | Claude Code | 5 | 1,205 tok |
| iops-leo/claude-slim npmjs.com Audit and shrink your Claude Code startup context. Measures what every skill, plugin, agen | 44 | Claude Code, Codex, OpenCode | 2 | 774 tok |
| OptimiLabs/velocity Local-first workspace for Claude Code, Codex CLI, and Gemini CLI with sessions, analytics, | 44 | Claude Code | 1 | 410 tok |
| GoPlausible/algorand-mcp goplausible.com Algorand Local Model Context Protocol (Server & Client) | 44 | Codex, OpenCode | 1 | 5,478 tok |
| mcp-agents-ai/mcp-agents-hub mcpagents.dev The open-source ecosystem for building, discovering, and deploying Model Context Protocol | 44 | Claude Code | 1 | 1,236 tok |
| nette/claude-code ai.nette.org Official Claude Code plugins for Nette | 44 | Claude Code | 1 | 871 tok |
| owainlewis/agent-skills My personal agent skills | 44 | Codex, OpenCode | 1 | 136 tok |
| geval-labs/geval geval.io Decision orchestration and reconciliation for AI changes. | 44 | GitHub Copilot | 1 | 846 tok |
| huangwb8/m2w pypi.org Automatically upload and update local markdown to WordPress via Python | 44 | Claude Code, Codex, OpenCode | 2 | 3,340 tok |
| aiagentflow/aiagentflow aiagentflow.dev A local-first, CLI-driven multi-agent AI software engineering workflow orchestrator with f | 44 | Claude Code | 2 | — |